Mercurial > cpython-lru_cache-weakref

annotate Modules/selectmodule.c @ 38664:7619216bbc19 2.4

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Bug #1502728: Correctly link against librt library on HP-UX. (backport from rev. 46743)
author Georg Brandl <georg@python.org>
date Thu, 08 Jun 2006 12:54:16 +0000
parents fd08918394f9
children 1af7f719ed28
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
diff changeset
1 /* select - Module containing unix select(2) call.
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
2 Under Unix, the file descriptors are small integers.
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
3 Under Win32, select only exists for sockets, and sockets may
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
4 have any value except INVALID_SOCKET.
8823
f2a4a2b60860 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8616
diff changeset
5 Under BeOS, we suffer the same dichotomy as Win32; sockets can be anything
f2a4a2b60860 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8616
diff changeset
6 >= 0.
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d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
diff changeset
7 */
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
8
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Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
9 #include "Python.h"
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
10
15512
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
11 /* Windows #defines FD_SETSIZE to 64 if FD_SETSIZE isn't already defined.
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
12 64 is too small (too many people have bumped into that limit).
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
13 Here we boost it.
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
14 Users who want even more than the boosted limit should #define
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
15 FD_SETSIZE higher before this; e.g., via compiler /D switch.
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
16 */
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
17 #if defined(MS_WINDOWS) && !defined(FD_SETSIZE)
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
18 #define FD_SETSIZE 512
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
19 #endif
e11c12323ebf SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.
Tim Peters <tim.peters@gmail.com>
parents: 14918
diff changeset
20
18603
b9d47d083d2c [Bug #438050]
Andrew M. Kuchling <amk@amk.ca>
parents: 17873
diff changeset
21 #if defined(HAVE_POLL_H)
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
22 #include <poll.h>
18603
b9d47d083d2c [Bug #438050]
Andrew M. Kuchling <amk@amk.ca>
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diff changeset
23 #elif defined(HAVE_SYS_POLL_H)
b9d47d083d2c [Bug #438050]
Andrew M. Kuchling <amk@amk.ca>
parents: 17873
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24 #include <sys/poll.h>
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
25 #endif
4600
d36250aefb82 Keep gcc -Wall happy.
Guido van Rossum <guido@python.org>
parents: 4503
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26
4621
a2f171ce25f8 Add ``extern void bzero();'' for SGI, to keep gcc -Wall happy.
Guido van Rossum <guido@python.org>
parents: 4600
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27 #ifdef __sgi
a2f171ce25f8 Add ``extern void bzero();'' for SGI, to keep gcc -Wall happy.
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parents: 4600
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28 /* This is missing from unistd.h */
13667
a6c7bfdd6777 Even more ANSIfication: fix as many function pointers and declarations as
Thomas Wouters <thomas@python.org>
parents: 13656
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29 extern void bzero(void *, int);
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a2f171ce25f8 Add ``extern void bzero();'' for SGI, to keep gcc -Wall happy.
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parents: 4600
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30 #endif
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parents: 4600
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31
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6aac31cd2102 Patch by Mark Hammond to avoid certain header files on Windows/CE.
Guido van Rossum <guido@python.org>
parents: 9588
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32 #ifndef DONT_HAVE_SYS_TYPES_H
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1940892d2fe3 Merge alpha100 branch back to main trunk
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33 #include <sys/types.h>
11243
6aac31cd2102 Patch by Mark Hammond to avoid certain header files on Windows/CE.
Guido van Rossum <guido@python.org>
parents: 9588
diff changeset
34 #endif
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d617de15774b Yet another pass at fd2obj -- this time for Windows
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parents: 2611
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35
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c454b76d51e7 OS/2 EMX port changes (Modules part of patch #450267):
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 21712
diff changeset
36 #if defined(PYOS_OS2) && !defined(PYCC_GCC)
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5e31d381fa47 os2 patch by Jeff Rush
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parents: 6367
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37 #include <sys/time.h>
5e31d381fa47 os2 patch by Jeff Rush
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parents: 6367
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38 #include <utils.h>
5e31d381fa47 os2 patch by Jeff Rush
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parents: 6367
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39 #endif
5e31d381fa47 os2 patch by Jeff Rush
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parents: 6367
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40
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ce74bba8a6a6 Slightly different Windows ifdefs
Guido van Rossum <guido@python.org>
parents: 3675
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41 #ifdef MS_WINDOWS
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d4ff9841417a I did fix too much - including winsock.h is sufficient.
Thomas Heller <theller@ctypes.org>
parents: 25399
diff changeset
42 #include <winsock.h>
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
diff changeset
43 #else
8823
f2a4a2b60860 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8616
diff changeset
44 #ifdef __BEOS__
f2a4a2b60860 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8616
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45 #include <net/socket.h>
f2a4a2b60860 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8616
diff changeset
46 #define SOCKET int
f2a4a2b60860 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8616
diff changeset
47 #else
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
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48 #define SOCKET int
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
diff changeset
49 #endif
8823
f2a4a2b60860 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8616
diff changeset
50 #endif
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
51
16946
31e302e94da8 RISCOS changes by dschwertberger
Guido van Rossum <guido@python.org>
parents: 15512
diff changeset
52
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
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53 static PyObject *SelectError;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
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54
4700
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55 /* list of Python objects and their file descriptor */
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
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56 typedef struct {
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parents: 4692
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57 PyObject *obj; /* owned reference */
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
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58 SOCKET fd;
4700
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parents: 4692
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59 int sentinel; /* -1 == sentinel */
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
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60 } pylist;
d617de15774b Yet another pass at fd2obj -- this time for Windows
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parents: 2611
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61
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
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62 static void
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
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63 reap_obj(pylist fd2obj[FD_SETSIZE + 1])
4700
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parents: 4692
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64 {
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parents: 4692
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65 int i;
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
66 for (i = 0; i < FD_SETSIZE + 1 && fd2obj[i].sentinel >= 0; i++) {
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
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67 Py_XDECREF(fd2obj[i].obj);
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
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68 fd2obj[i].obj = NULL;
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
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69 }
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
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70 fd2obj[0].sentinel = -1;
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
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71 }
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
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72
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
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73
4692
cb405b9696d4 Several changes... Guido *please* take a look!
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parents: 4621
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74 /* returns -1 and sets the Python exception if an error occurred, otherwise
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
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75 returns a number >= 0
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
76 */
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
diff changeset
77 static int
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
78 seq2set(PyObject *seq, fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
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parents:
diff changeset
79 {
4700
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parents: 4692
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80 int i;
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parents: 4692
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81 int max = -1;
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parents: 4692
diff changeset
82 int index = 0;
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
83 int len = -1;
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
84 PyObject* fast_seq = NULL;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
85 PyObject* o = NULL;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
86
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
diff changeset
87 fd2obj[0].obj = (PyObject*)0; /* set list to zero size */
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
88 FD_ZERO(set);
2611
01687ce43708 fix subtle refcnt bug
Guido van Rossum <guido@python.org>
parents: 2061
diff changeset
89
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
90 fast_seq=PySequence_Fast(seq, "arguments 1-3 must be sequences");
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
91 if (!fast_seq)
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
92 return -1;
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
93
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
94 len = PySequence_Fast_GET_SIZE(fast_seq);
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
95
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
diff changeset
96 for (i = 0; i < len; i++) {
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
97 SOCKET v;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
98
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
diff changeset
99 /* any intervening fileno() calls could decr this refcnt */
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
100 if (!(o = PySequence_Fast_GET_ITEM(fast_seq, i)))
4734
3db423515626 list2set(): correct return value (an int, not a PyObject*).
Barry Warsaw <barry@python.org>
parents: 4730
diff changeset
101 return -1;
4730
62cf7d589300 list2set(): PyList_GetItem could fail.
Barry Warsaw <barry@python.org>
parents: 4700
diff changeset
102
4700
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parents: 4692
diff changeset
103 Py_INCREF(o);
13593
df64cc0e84e2 Use PyObject_AsFileDescriptor
Andrew M. Kuchling <amk@amk.ca>
parents: 13550
diff changeset
104 v = PyObject_AsFileDescriptor( o );
df64cc0e84e2 Use PyObject_AsFileDescriptor
Andrew M. Kuchling <amk@amk.ca>
parents: 13550
diff changeset
105 if (v == -1) goto finally;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
106
11656
db756d31e727 According to Ron Bickers, and with apparent approval of Chris
Guido van Rossum <guido@python.org>
parents: 11243
diff changeset
107 #if defined(_MSC_VER)
4700
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parents: 4692
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108 max = 0; /* not used for Win32 */
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parents: 4692
diff changeset
109 #else /* !_MSC_VER */
4692
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parents: 4621
diff changeset
110 if (v < 0 || v >= FD_SETSIZE) {
4700
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parents: 4692
diff changeset
111 PyErr_SetString(PyExc_ValueError,
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
112 "filedescriptor out of range in select()");
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parents: 4692
diff changeset
113 goto finally;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
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114 }
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
115 if (v > max)
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
116 max = v;
4700
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parents: 4692
diff changeset
117 #endif /* _MSC_VER */
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
118 FD_SET(v, set);
4700
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parents: 4692
diff changeset
119
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
120 /* add object and its file descriptor to the list */
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
121 if (index >= FD_SETSIZE) {
4700
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Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
122 PyErr_SetString(PyExc_ValueError,
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
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123 "too many file descriptors in select()");
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Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
124 goto finally;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
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125 }
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
126 fd2obj[index].obj = o;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
127 fd2obj[index].fd = v;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
128 fd2obj[index].sentinel = 0;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
129 fd2obj[++index].sentinel = -1;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
130 }
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
131 Py_DECREF(fast_seq);
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
132 return max+1;
4700
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parents: 4692
diff changeset
133
825038d98ab6 Reworked to eliminate all potential memory problems, including
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parents: 4692
diff changeset
134 finally:
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
135 Py_XDECREF(o);
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
136 Py_DECREF(fast_seq);
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
137 return -1;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
138 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
139
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
140 /* returns NULL and sets the Python exception if an error occurred */
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
141 static PyObject *
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
142 set2list(fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
143 {
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
144 int i, j, count=0;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
145 PyObject *list, *o;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
146 SOCKET fd;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
147
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
148 for (j = 0; fd2obj[j].sentinel >= 0; j++) {
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
149 if (FD_ISSET(fd2obj[j].fd, set))
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
150 count++;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
151 }
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
152 list = PyList_New(count);
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
153 if (!list)
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
154 return NULL;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
155
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
156 i = 0;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
157 for (j = 0; fd2obj[j].sentinel >= 0; j++) {
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
158 fd = fd2obj[j].fd;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
159 if (FD_ISSET(fd, set)) {
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
diff changeset
160 #ifndef _MSC_VER
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
161 if (fd > FD_SETSIZE) {
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
162 PyErr_SetString(PyExc_SystemError,
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
163 "filedescriptor out of range returned in select()");
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
164 goto finally;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
165 }
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
diff changeset
166 #endif
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
167 o = fd2obj[j].obj;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
168 fd2obj[j].obj = NULL;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
169 /* transfer ownership */
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
170 if (PyList_SetItem(list, i, o) < 0)
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
171 goto finally;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
172
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
173 i++;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
174 }
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
175 }
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
176 return list;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
177 finally:
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
178 Py_DECREF(list);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
179 return NULL;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
180 }
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
181
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
182 #undef SELECT_USES_HEAP
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
183 #if FD_SETSIZE > 1024
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
184 #define SELECT_USES_HEAP
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
185 #endif /* FD_SETSIZE > 1024 */
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
186
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
187 static PyObject *
13502
7348cceee8fa ANSI-fication
Peter Schneider-Kamp <nowonder@nowonder.de>
parents: 13256
diff changeset
188 select_select(PyObject *self, PyObject *args)
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
189 {
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
190 #ifdef SELECT_USES_HEAP
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
191 pylist *rfd2obj, *wfd2obj, *efd2obj;
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
192 #else /* !SELECT_USES_HEAP */
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
193 /* XXX: All this should probably be implemented as follows:
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
194 * - find the highest descriptor we're interested in
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
195 * - add one
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
196 * - that's the size
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
197 * See: Stevens, APitUE, $12.5.1
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
198 */
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
199 pylist rfd2obj[FD_SETSIZE + 1];
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
200 pylist wfd2obj[FD_SETSIZE + 1];
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
201 pylist efd2obj[FD_SETSIZE + 1];
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
202 #endif /* SELECT_USES_HEAP */
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
203 PyObject *ifdlist, *ofdlist, *efdlist;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
204 PyObject *ret = NULL;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
205 PyObject *tout = Py_None;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
206 fd_set ifdset, ofdset, efdset;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
207 double timeout;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
208 struct timeval tv, *tvp;
13079
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
209 long seconds;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
210 int imax, omax, emax, max;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
211 int n;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
212
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
213 /* convert arguments */
11882
dc65c5f6ad7c Massive patch by Skip Montanaro to add ":name" to as many
Guido van Rossum <guido@python.org>
parents: 11656
diff changeset
214 if (!PyArg_ParseTuple(args, "OOO|O:select",
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
215 &ifdlist, &ofdlist, &efdlist, &tout))
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
216 return NULL;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
217
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
218 if (tout == Py_None)
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
219 tvp = (struct timeval *)0;
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
220 else if (!PyNumber_Check(tout)) {
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
221 PyErr_SetString(PyExc_TypeError,
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
222 "timeout must be a float or None");
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
223 return NULL;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
224 }
1390
cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same
Guido van Rossum <guido@python.org>
parents: 1284
diff changeset
225 else {
26270
e270c0d41a05 Don't use PyNumber_Float() since it's is nearly useless. Instead, rely on
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 26153
diff changeset
226 timeout = PyFloat_AsDouble(tout);
e270c0d41a05 Don't use PyNumber_Float() since it's is nearly useless. Instead, rely on
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 26153
diff changeset
227 if (timeout == -1 && PyErr_Occurred())
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
228 return NULL;
13079
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
229 if (timeout > (double)LONG_MAX) {
19311
fc7617312182 Fixed a couple of minor formatting nits where lines were > 79 columns wide.
Barry Warsaw <barry@python.org>
parents: 19310
diff changeset
230 PyErr_SetString(PyExc_OverflowError,
fc7617312182 Fixed a couple of minor formatting nits where lines were > 79 columns wide.
Barry Warsaw <barry@python.org>
parents: 19310
diff changeset
231 "timeout period too long");
13079
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
232 return NULL;
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
233 }
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
234 seconds = (long)timeout;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
235 timeout = timeout - (double)seconds;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
236 tv.tv_sec = seconds;
13079
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
237 tv.tv_usec = (long)(timeout*1000000.0);
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
238 tvp = &tv;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
239 }
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
240
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
241
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
242 #ifdef SELECT_USES_HEAP
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
243 /* Allocate memory for the lists */
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
244 rfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
245 wfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
246 efd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
247 if (rfd2obj == NULL || wfd2obj == NULL || efd2obj == NULL) {
12576
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 11882
diff changeset
248 if (rfd2obj) PyMem_DEL(rfd2obj);
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 11882
diff changeset
249 if (wfd2obj) PyMem_DEL(wfd2obj);
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 11882
diff changeset
250 if (efd2obj) PyMem_DEL(efd2obj);
27815
cb1eeaeb74a0 SF bug 684667: Modules/selectmodule.c returns NULL without exception set.
Tim Peters <tim.peters@gmail.com>
parents: 26270
diff changeset
251 return PyErr_NoMemory();
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
252 }
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
253 #endif /* SELECT_USES_HEAP */
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
254 /* Convert sequences to fd_sets, and get maximum fd number
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
255 * propagates the Python exception set in seq2set()
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
256 */
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
257 rfd2obj[0].sentinel = -1;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
258 wfd2obj[0].sentinel = -1;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
259 efd2obj[0].sentinel = -1;
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
260 if ((imax=seq2set(ifdlist, &ifdset, rfd2obj)) < 0)
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
261 goto finally;
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
262 if ((omax=seq2set(ofdlist, &ofdset, wfd2obj)) < 0)
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
263 goto finally;
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
264 if ((emax=seq2set(efdlist, &efdset, efd2obj)) < 0)
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
265 goto finally;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
266 max = imax;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
267 if (omax > max) max = omax;
cb405b9696d4 Several changes... Guido *please* take a look!
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268 if (emax > max) max = emax;
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269
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270 Py_BEGIN_ALLOW_THREADS
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271 n = select(max, &ifdset, &ofdset, &efdset, tvp);
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272 Py_END_ALLOW_THREADS
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273
25399
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274 #ifdef MS_WINDOWS
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275 if (n == SOCKET_ERROR) {
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276 PyErr_SetExcFromWindowsErr(SelectError, WSAGetLastError());
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277 }
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278 #else
4692
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279 if (n < 0) {
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280 PyErr_SetFromErrno(SelectError);
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281 }
25399
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282 #endif
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283 else if (n == 0) {
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284 /* optimization */
4692
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285 ifdlist = PyList_New(0);
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286 if (ifdlist) {
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287 ret = PyTuple_Pack(3, ifdlist, ifdlist, ifdlist);
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288 Py_DECREF(ifdlist);
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289 }
4692
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290 }
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291 else {
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292 /* any of these three calls can raise an exception. it's more
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293 convenient to test for this after all three calls... but
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294 is that acceptable?
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295 */
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296 ifdlist = set2list(&ifdset, rfd2obj);
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297 ofdlist = set2list(&ofdset, wfd2obj);
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298 efdlist = set2list(&efdset, efd2obj);
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299 if (PyErr_Occurred())
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300 ret = NULL;
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301 else
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302 ret = PyTuple_Pack(3, ifdlist, ofdlist, efdlist);
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
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303
4700
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304 Py_DECREF(ifdlist);
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305 Py_DECREF(ofdlist);
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306 Py_DECREF(efdlist);
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307 }
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308
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diff changeset
309 finally:
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diff changeset
310 reap_obj(rfd2obj);
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311 reap_obj(wfd2obj);
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diff changeset
312 reap_obj(efd2obj);
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diff changeset
313 #ifdef SELECT_USES_HEAP
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
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diff changeset
314 PyMem_DEL(rfd2obj);
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diff changeset
315 PyMem_DEL(wfd2obj);
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diff changeset
316 PyMem_DEL(efd2obj);
19310
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diff changeset
317 #endif /* SELECT_USES_HEAP */
4692
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diff changeset
318 return ret;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
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diff changeset
319 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
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320
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f4a4ac7331ec Added configure check for broken poll() on some unix systems (MacOS X 10.3)
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30683
diff changeset
321 #if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
14174
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322 /*
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323 * poll() support
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diff changeset
324 */
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325
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diff changeset
326 typedef struct {
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diff changeset
327 PyObject_HEAD
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diff changeset
328 PyObject *dict;
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diff changeset
329 int ufd_uptodate;
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diff changeset
330 int ufd_len;
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diff changeset
331 struct pollfd *ufds;
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diff changeset
332 } pollObject;
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diff changeset
333
24280
1598a1e473e2 staticforward bites the dust.
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
334 static PyTypeObject poll_Type;
14174
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335
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diff changeset
336 /* Update the malloc'ed array of pollfds to match the dictionary
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
337 contained within a pollObject. Return 1 on success, 0 on an error.
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diff changeset
338 */
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diff changeset
339
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diff changeset
340 static int
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diff changeset
341 update_ufd_array(pollObject *self)
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diff changeset
342 {
18754
3cd03a64c338 Make more warnings go away on the SGI compiler.
Fred Drake <fdrake@acm.org>
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diff changeset
343 int i, pos;
14174
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diff changeset
344 PyObject *key, *value;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
345
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diff changeset
346 self->ufd_len = PyDict_Size(self->dict);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
347 PyMem_Resize(self->ufds, struct pollfd, self->ufd_len);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
348 if (self->ufds == NULL) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
349 PyErr_NoMemory();
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diff changeset
350 return 0;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
351 }
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diff changeset
352
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
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diff changeset
353 i = pos = 0;
18754
3cd03a64c338 Make more warnings go away on the SGI compiler.
Fred Drake <fdrake@acm.org>
parents: 18603
diff changeset
354 while (PyDict_Next(self->dict, &pos, &key, &value)) {
14174
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diff changeset
355 self->ufds[i].fd = PyInt_AsLong(key);
18754
3cd03a64c338 Make more warnings go away on the SGI compiler.
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parents: 18603
diff changeset
356 self->ufds[i].events = (short)PyInt_AsLong(value);
14174
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diff changeset
357 i++;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
358 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
359 self->ufd_uptodate = 1;
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diff changeset
360 return 1;
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diff changeset
361 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
362
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
363 PyDoc_STRVAR(poll_register_doc,
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
364 "register(fd [, eventmask] ) -> None\n\n\
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
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diff changeset
365 Register a file descriptor with the polling object.\n\
19311
fc7617312182 Fixed a couple of minor formatting nits where lines were > 79 columns wide.
Barry Warsaw <barry@python.org>
parents: 19310
diff changeset
366 fd -- either an integer, or an object with a fileno() method returning an\n\
fc7617312182 Fixed a couple of minor formatting nits where lines were > 79 columns wide.
Barry Warsaw <barry@python.org>
parents: 19310
diff changeset
367 int.\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
368 events -- an optional bitmask describing the type of events to check for");
14174
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diff changeset
369
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diff changeset
370 static PyObject *
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diff changeset
371 poll_register(pollObject *self, PyObject *args)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
372 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
373 PyObject *o, *key, *value;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
374 int fd, events = POLLIN | POLLPRI | POLLOUT;
20668
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
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diff changeset
375 int err;
14174
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diff changeset
376
17873
1eb12259feea Add :method info to the PyArg_ParseTuple() format strings for poll objects.
Fred Drake <fdrake@acm.org>
parents: 16946
diff changeset
377 if (!PyArg_ParseTuple(args, "O|i:register", &o, &events)) {
14174
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diff changeset
378 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
379 }
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diff changeset
380
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diff changeset
381 fd = PyObject_AsFileDescriptor(o);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
382 if (fd == -1) return NULL;
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diff changeset
383
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
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diff changeset
384 /* Add entry to the internal dictionary: the key is the
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
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diff changeset
385 file descriptor, and the value is the event mask. */
20668
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
386 key = PyInt_FromLong(fd);
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
387 if (key == NULL)
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
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diff changeset
388 return NULL;
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
389 value = PyInt_FromLong(events);
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
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parents: 20654
diff changeset
390 if (value == NULL) {
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
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diff changeset
391 Py_DECREF(key);
14174
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diff changeset
392 return NULL;
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diff changeset
393 }
20668
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
394 err = PyDict_SetItem(self->dict, key, value);
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
395 Py_DECREF(key);
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
396 Py_DECREF(value);
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
397 if (err < 0)
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
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diff changeset
398 return NULL;
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
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parents: 20654
diff changeset
399
14174
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diff changeset
400 self->ufd_uptodate = 0;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
401
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
402 Py_INCREF(Py_None);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
403 return Py_None;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
404 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
405
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
406 PyDoc_STRVAR(poll_unregister_doc,
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
407 "unregister(fd) -> None\n\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
408 Remove a file descriptor being tracked by the polling object.");
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
409
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
410 static PyObject *
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
411 poll_unregister(pollObject *self, PyObject *args)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
412 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
413 PyObject *o, *key;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
414 int fd;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
415
17873
1eb12259feea Add :method info to the PyArg_ParseTuple() format strings for poll objects.
Fred Drake <fdrake@acm.org>
parents: 16946
diff changeset
416 if (!PyArg_ParseTuple(args, "O:unregister", &o)) {
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
417 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
418 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
419
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
420 fd = PyObject_AsFileDescriptor( o );
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
421 if (fd == -1)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
422 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
423
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
424 /* Check whether the fd is already in the array */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
425 key = PyInt_FromLong(fd);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
426 if (key == NULL)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
427 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
428
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
429 if (PyDict_DelItem(self->dict, key) == -1) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
430 Py_DECREF(key);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
431 /* This will simply raise the KeyError set by PyDict_DelItem
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
432 if the file descriptor isn't registered. */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
433 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
434 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
435
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
436 Py_DECREF(key);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
437 self->ufd_uptodate = 0;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
438
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
439 Py_INCREF(Py_None);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
440 return Py_None;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
441 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
442
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
443 PyDoc_STRVAR(poll_poll_doc,
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
444 "poll( [timeout] ) -> list of (fd, event) 2-tuples\n\n\
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
445 Polls the set of registered file descriptors, returning a list containing \n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
446 any descriptors that have events or errors to report.");
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
447
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
448 static PyObject *
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
449 poll_poll(pollObject *self, PyObject *args)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
450 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
451 PyObject *result_list = NULL, *tout = NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
452 int timeout = 0, poll_result, i, j;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
453 PyObject *value = NULL, *num = NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
454
17873
1eb12259feea Add :method info to the PyArg_ParseTuple() format strings for poll objects.
Fred Drake <fdrake@acm.org>
parents: 16946
diff changeset
455 if (!PyArg_ParseTuple(args, "|O:poll", &tout)) {
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
456 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
457 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
458
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
459 /* Check values for timeout */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
460 if (tout == NULL || tout == Py_None)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
461 timeout = -1;
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
462 else if (!PyNumber_Check(tout)) {
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
463 PyErr_SetString(PyExc_TypeError,
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
464 "timeout must be an integer or None");
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
465 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
466 }
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
467 else {
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
468 tout = PyNumber_Int(tout);
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
469 if (!tout)
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
470 return NULL;
26153
6078abc69036 Use PyInt_AsLong instead of PyInt_AS_LONG after the call to
Walter Dörwald <walter@livinglogic.de>
parents: 25400
diff changeset
471 timeout = PyInt_AsLong(tout);
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
472 Py_DECREF(tout);
35836
fd08918394f9 Backport (with output/test_poll):
Neal Norwitz <nnorwitz@gmail.com>
parents: 33007
diff changeset
473 if (timeout == -1 && PyErr_Occurred())
fd08918394f9 Backport (with output/test_poll):
Neal Norwitz <nnorwitz@gmail.com>
parents: 33007
diff changeset
474 return NULL;
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
475 }
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
476
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
477 /* Ensure the ufd array is up to date */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
478 if (!self->ufd_uptodate)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
479 if (update_ufd_array(self) == 0)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
480 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
481
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
482 /* call poll() */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
483 Py_BEGIN_ALLOW_THREADS;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
484 poll_result = poll(self->ufds, self->ufd_len, timeout);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
485 Py_END_ALLOW_THREADS;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
486
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
487 if (poll_result < 0) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
488 PyErr_SetFromErrno(SelectError);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
489 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
490 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
491
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
492 /* build the result list */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
493
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
494 result_list = PyList_New(poll_result);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
495 if (!result_list)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
496 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
497 else {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
498 for (i = 0, j = 0; j < poll_result; j++) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
499 /* skip to the next fired descriptor */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
500 while (!self->ufds[i].revents) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
501 i++;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
502 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
503 /* if we hit a NULL return, set value to NULL
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
504 and break out of loop; code at end will
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
505 clean up result_list */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
506 value = PyTuple_New(2);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
507 if (value == NULL)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
508 goto error;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
509 num = PyInt_FromLong(self->ufds[i].fd);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
510 if (num == NULL) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
511 Py_DECREF(value);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
512 goto error;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
513 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
514 PyTuple_SET_ITEM(value, 0, num);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
515
33007
9fb2e30f26be [Bug #923315] Produce correct result on AIX
Andrew M. Kuchling <amk@amk.ca>
parents: 31761
diff changeset
516 /* The &0xffff is a workaround for AIX. 'revents'
9fb2e30f26be [Bug #923315] Produce correct result on AIX
Andrew M. Kuchling <amk@amk.ca>
parents: 31761
diff changeset
517 is a 16-bit short, and IBM assigned POLLNVAL
9fb2e30f26be [Bug #923315] Produce correct result on AIX
Andrew M. Kuchling <amk@amk.ca>
parents: 31761
diff changeset
518 to be 0x8000, so the conversion to int results
9fb2e30f26be [Bug #923315] Produce correct result on AIX
Andrew M. Kuchling <amk@amk.ca>
parents: 31761
diff changeset
519 in a negative number. See SF bug #923315. */
9fb2e30f26be [Bug #923315] Produce correct result on AIX
Andrew M. Kuchling <amk@amk.ca>
parents: 31761
diff changeset
520 num = PyInt_FromLong(self->ufds[i].revents & 0xffff);
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
521 if (num == NULL) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
522 Py_DECREF(value);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
523 goto error;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
524 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
525 PyTuple_SET_ITEM(value, 1, num);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
526 if ((PyList_SetItem(result_list, j, value)) == -1) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
527 Py_DECREF(value);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
528 goto error;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
529 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
530 i++;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
531 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
532 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
533 return result_list;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
534
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
535 error:
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
536 Py_DECREF(result_list);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
537 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
538 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
539
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
540 static PyMethodDef poll_methods[] = {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
541 {"register", (PyCFunction)poll_register,
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
542 METH_VARARGS, poll_register_doc},
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
543 {"unregister", (PyCFunction)poll_unregister,
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
544 METH_VARARGS, poll_unregister_doc},
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
545 {"poll", (PyCFunction)poll_poll,
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
546 METH_VARARGS, poll_poll_doc},
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
547 {NULL, NULL} /* sentinel */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
548 };
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
549
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
550 static pollObject *
14277
984abd20eec2 Peter Schneider-Kamp <nowonder@nowonder.de>:
Fred Drake <fdrake@acm.org>
parents: 14182
diff changeset
551 newPollObject(void)
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
552 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
553 pollObject *self;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
554 self = PyObject_New(pollObject, &poll_Type);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
555 if (self == NULL)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
556 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
557 /* ufd_uptodate is a Boolean, denoting whether the
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
558 array pointed to by ufds matches the contents of the dictionary. */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
559 self->ufd_uptodate = 0;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
560 self->ufds = NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
561 self->dict = PyDict_New();
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
562 if (self->dict == NULL) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
563 Py_DECREF(self);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
564 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
565 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
566 return self;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
567 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
568
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
569 static void
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
570 poll_dealloc(pollObject *self)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
571 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
572 if (self->ufds != NULL)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
573 PyMem_DEL(self->ufds);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
574 Py_XDECREF(self->dict);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
575 PyObject_Del(self);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
576 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
577
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
578 static PyObject *
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
579 poll_getattr(pollObject *self, char *name)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
580 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
581 return Py_FindMethod(poll_methods, (PyObject *)self, name);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
582 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
583
24283
c0a67a1cab09 Removed more stray instances of statichere, but left _sre.c alone.
Tim Peters <tim.peters@gmail.com>
parents: 24280
diff changeset
584 static PyTypeObject poll_Type = {
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
585 /* The ob_type field must be initialized in the module init function
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
586 * to be portable to Windows without using C++. */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
587 PyObject_HEAD_INIT(NULL)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
588 0, /*ob_size*/
21313
91dd223829c6 Patch supplied by Burton Radons for his own SF bug #487390: Modifying
Guido van Rossum <guido@python.org>
parents: 20668
diff changeset
589 "select.poll", /*tp_name*/
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
590 sizeof(pollObject), /*tp_basicsize*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
591 0, /*tp_itemsize*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
592 /* methods */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
593 (destructor)poll_dealloc, /*tp_dealloc*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
594 0, /*tp_print*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
595 (getattrfunc)poll_getattr, /*tp_getattr*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
596 0, /*tp_setattr*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
597 0, /*tp_compare*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
598 0, /*tp_repr*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
599 0, /*tp_as_number*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
600 0, /*tp_as_sequence*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
601 0, /*tp_as_mapping*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
602 0, /*tp_hash*/
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
603 };
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
604
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
605 PyDoc_STRVAR(poll_doc,
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
606 "Returns a polling object, which supports registering and\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
607 unregistering file descriptors, and then polling them for I/O events.");
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
608
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
609 static PyObject *
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
610 select_poll(PyObject *self, PyObject *args)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
611 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
612 pollObject *rv;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
613
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
614 if (!PyArg_ParseTuple(args, ":poll"))
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
615 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
616 rv = newPollObject();
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
617 if ( rv == NULL )
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
618 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
619 return (PyObject *)rv;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
620 }
31761
f4a4ac7331ec Added configure check for broken poll() on some unix systems (MacOS X 10.3)
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30683
diff changeset
621 #endif /* HAVE_POLL && !HAVE_BROKEN_POLL */
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
622
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
623 PyDoc_STRVAR(select_doc,
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
624 "select(rlist, wlist, xlist[, timeout]) -> (rlist, wlist, xlist)\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
625 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
626 Wait until one or more file descriptors are ready for some kind of I/O.\n\
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
627 The first three arguments are sequences of file descriptors to be waited for:\n\
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
628 rlist -- wait until ready for reading\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
629 wlist -- wait until ready for writing\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
630 xlist -- wait for an ``exceptional condition''\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
631 If only one kind of condition is required, pass [] for the other lists.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
632 A file descriptor is either a socket or file object, or a small integer\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
633 gotten from a fileno() method call on one of those.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
634 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
635 The optional 4th argument specifies a timeout in seconds; it may be\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
636 a floating point number to specify fractions of seconds. If it is absent\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
637 or None, the call will never time out.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
638 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
639 The return value is a tuple of three lists corresponding to the first three\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
640 arguments; each contains the subset of the corresponding file descriptors\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
641 that are ready.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
642 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
643 *** IMPORTANT NOTICE ***\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
644 On Windows, only sockets are supported; on Unix, all file descriptors.");
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
645
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
646 static PyMethodDef select_methods[] = {
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
647 {"select", select_select, METH_VARARGS, select_doc},
31761
f4a4ac7331ec Added configure check for broken poll() on some unix systems (MacOS X 10.3)
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30683
diff changeset
648 #if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
649 {"poll", select_poll, METH_VARARGS, poll_doc},
31761
f4a4ac7331ec Added configure check for broken poll() on some unix systems (MacOS X 10.3)
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30683
diff changeset
650 #endif /* HAVE_POLL && !HAVE_BROKEN_POLL */
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
651 {0, 0}, /* sentinel */
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
652 };
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
653
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
654 PyDoc_STRVAR(module_doc,
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
655 "This module supports asynchronous I/O on multiple file descriptors.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
656 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
657 *** IMPORTANT NOTICE ***\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
658 On Windows, only sockets are supported; on Unix, all file descriptors.");
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
659
24363
979ff5d0ae07 Replace DL_IMPORT with PyMODINIT_FUNC and remove "/export:init..." link
Mark Hammond <mhammond@skippinet.com.au>
parents: 24283
diff changeset
660 PyMODINIT_FUNC
13651
8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)',
Thomas Wouters <thomas@python.org>
parents: 13593
diff changeset
661 initselect(void)
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
662 {
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
663 PyObject *m;
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
664 m = Py_InitModule3("select", select_methods, module_doc);
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
665
6367
2c29b8982643 Apply two changes, systematically:
Guido van Rossum <guido@python.org>
parents: 4734
diff changeset
666 SelectError = PyErr_NewException("select.error", NULL, NULL);
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
667 Py_INCREF(SelectError);
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
668 PyModule_AddObject(m, "error", SelectError);
31761
f4a4ac7331ec Added configure check for broken poll() on some unix systems (MacOS X 10.3)
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30683
diff changeset
669 #if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
670 poll_Type.ob_type = &PyType_Type;
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cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
671 PyModule_AddIntConstant(m, "POLLIN", POLLIN);
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
672 PyModule_AddIntConstant(m, "POLLPRI", POLLPRI);
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
673 PyModule_AddIntConstant(m, "POLLOUT", POLLOUT);
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
674 PyModule_AddIntConstant(m, "POLLERR", POLLERR);
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
675 PyModule_AddIntConstant(m, "POLLHUP", POLLHUP);
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
676 PyModule_AddIntConstant(m, "POLLNVAL", POLLNVAL);
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
677
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
678 #ifdef POLLRDNORM
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
679 PyModule_AddIntConstant(m, "POLLRDNORM", POLLRDNORM);
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
680 #endif
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
681 #ifdef POLLRDBAND
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
682 PyModule_AddIntConstant(m, "POLLRDBAND", POLLRDBAND);
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
683 #endif
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
684 #ifdef POLLWRNORM
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
685 PyModule_AddIntConstant(m, "POLLWRNORM", POLLWRNORM);
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
686 #endif
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
687 #ifdef POLLWRBAND
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
688 PyModule_AddIntConstant(m, "POLLWRBAND", POLLWRBAND);
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
689 #endif
14182
c85a80db6845 Not every OS that support poll seems to support POLLMSG.
Sjoerd Mullender <sjoerd@acm.org>
parents: 14174
diff changeset
690 #ifdef POLLMSG
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
691 PyModule_AddIntConstant(m, "POLLMSG", POLLMSG);
14182
c85a80db6845 Not every OS that support poll seems to support POLLMSG.
Sjoerd Mullender <sjoerd@acm.org>
parents: 14174
diff changeset
692 #endif
31761
f4a4ac7331ec Added configure check for broken poll() on some unix systems (MacOS X 10.3)
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30683
diff changeset
693 #endif /* HAVE_POLL && !HAVE_BROKEN_POLL */
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
694 }