cpython-lru_cache-weakref: Modules/selectmodule.c annotate

annotate Modules/selectmodule.c @ 2611:01687ce43708 legacy-trunk

fix subtle refcnt bug

author	Guido van Rossum <guido@python.org>
date	Wed, 29 Mar 1995 16:47:45 +0000
parents	172ba04a5191
children	d617de15774b

rev	line source
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	1 /***********************************************************
2061 172ba04a5191 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 1746 diff changeset	2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
172ba04a5191 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 1746 diff changeset	3 The Netherlands.
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	4
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	5 All Rights Reserved
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	6
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	7 Permission to use, copy, modify, and distribute this software and its
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	8 documentation for any purpose and without fee is hereby granted,
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	9 provided that the above copyright notice appear in all copies and that
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	10 both that copyright notice and this permission notice appear in
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	11 supporting documentation, and that the names of Stichting Mathematisch
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	12 Centrum or CWI not be used in advertising or publicity pertaining to
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	13 distribution of the software without specific, written prior permission.
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	14
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	22
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	23 ******************************************************************/
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	24
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	25 /* select - Module containing unix select(2) call */
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	26
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	27 #include "allobjects.h"
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	28 #include "modsupport.h"
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	29 #include "ceval.h"
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	30
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1392 diff changeset	31 #include <sys/types.h>
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1392 diff changeset	32 #include "myselect.h" /* Also includes mytime.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	33
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	34 static object *SelectError;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	35
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	36 static
922 c12b445cdace * myselect.h: bzero -> memset Guido van Rossum <guido@python.org> parents: 904 diff changeset	37 list2set(list, set, fd2obj)
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	38 object *list;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	39 fd_set *set;
922 c12b445cdace * myselect.h: bzero -> memset Guido van Rossum <guido@python.org> parents: 904 diff changeset	40 object *fd2obj[FD_SETSIZE];
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	41 {
927 aacbd4b558c7 Replaced max=-1 by max = -1. Guido van Rossum <guido@python.org> parents: 926 diff changeset	42 int i, len, v, max = -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	43 object o, filenomethod, *fno;
2611 01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	44
01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	45 for ( i=0; i<FD_SETSIZE; i++ ) {
01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	46 fd2obj[i] = (object*)0;
01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	47 }
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	48
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	49 FD_ZERO(set);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	50 len = getlistsize(list);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	51 for( i=0; i<len; i++ ) {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	52 o = getlistitem(list, i);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	53 if ( is_intobject(o) ) {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	54 v = getintvalue(o);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	55 } else if ( (filenomethod = getattr(o, "fileno")) != NULL ) {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	56 fno = call_object(filenomethod, NULL);
1284 dbce72afe261 * selectmodule.c: fix (another!) two memory leaks -- this time in list2set Guido van Rossum <guido@python.org> parents: 1252 diff changeset	57 DECREF(filenomethod);
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	58 if ( fno == NULL )
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	59 return -1;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	60 if ( !is_intobject(fno) ) {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	61 err_badarg();
1284 dbce72afe261 * selectmodule.c: fix (another!) two memory leaks -- this time in list2set Guido van Rossum <guido@python.org> parents: 1252 diff changeset	62 DECREF(fno);
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	63 return -1;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	64 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	65 v = getintvalue(fno);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	66 DECREF(fno);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	67 } else {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	68 err_badarg();
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	69 return -1;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	70 }
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1392 diff changeset	71 if ( v < 0 \|\| v >= FD_SETSIZE ) {
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1392 diff changeset	72 err_setstr(ValueError, "filedescriptor out of range in select()");
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	73 return -1;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	74 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	75 if ( v > max ) max = v;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	76 FD_SET(v, set);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	77 fd2obj[v] = o;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	78 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	79 return max+1;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	80 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	81
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	82 static object *
922 c12b445cdace * myselect.h: bzero -> memset Guido van Rossum <guido@python.org> parents: 904 diff changeset	83 set2list(set, max, fd2obj)
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	84 fd_set *set;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	85 int max;
922 c12b445cdace * myselect.h: bzero -> memset Guido van Rossum <guido@python.org> parents: 904 diff changeset	86 object *fd2obj[FD_SETSIZE];
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	87 {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	88 int i, num=0;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	89 object list, o;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	90
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	91 for(i=0; i<max; i++)
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	92 if ( FD_ISSET(i,set) )
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	93 num++;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	94 list = newlistobject(num);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	95 num = 0;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	96 for(i=0; i<max; i++)
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	97 if ( FD_ISSET(i,set) ) {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	98 if ( i > FD_SETSIZE ) {
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1392 diff changeset	99 err_setstr(SystemError,
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1392 diff changeset	100 "filedescriptor out of range returned in select()");
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	101 return NULL;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	102 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	103 o = fd2obj[i];
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1392 diff changeset	104 if ( o == 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	105 err_setstr(SystemError,
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	106 "Bad filedescriptor returned from select()");
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	107 return NULL;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	108 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	109 INCREF(o);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	110 setlistitem(list, num, o);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	111 num++;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	112 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	113 return list;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	114 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	115
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	116 static object *
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	117 select_select(self, args)
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	118 object *self;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	119 object *args;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	120 {
2611 01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	121 object rfd2obj[FD_SETSIZE], wfd2obj[FD_SETSIZE], *efd2obj[FD_SETSIZE];
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	122 object ifdlist, ofdlist, *efdlist;
1390 cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	123 object ret, tout;
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	124 fd_set ifdset, ofdset, efdset;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	125 double timeout;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	126 struct timeval tv, *tvp;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	127 int seconds;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	128 int imax, omax, emax, max;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	129 int n;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	130
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	131
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	132 /* Get args. Looks funny because of optional timeout argument */
1390 cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	133 if ( getargs(args, "(OOOO)", &ifdlist, &ofdlist, &efdlist, &tout) ) {
cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	134 if (tout == None)
cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	135 tvp = (struct timeval *)0;
cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	136 else {
1392 0ffff40d13ff Fixed a couple of bugs: getargs doesn't use % escapes, and seconds Sjoerd Mullender <sjoerd@acm.org> parents: 1390 diff changeset	137 if (!getargs(tout, "d;timeout must be float or None", &timeout))
1390 cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	138 return NULL;
1392 0ffff40d13ff Fixed a couple of bugs: getargs doesn't use % escapes, and seconds Sjoerd Mullender <sjoerd@acm.org> parents: 1390 diff changeset	139 seconds = (int)timeout;
1390 cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	140 timeout = timeout - (double)seconds;
cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	141 tv.tv_sec = seconds;
cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	142 tv.tv_usec = (int)(timeout*1000000.0);
cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	143 tvp = &tv;
cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same Guido van Rossum <guido@python.org> parents: 1284 diff changeset	144 }
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	145 } else {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	146 /* Doesn't have 4 args, that means no timeout */
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	147 err_clear();
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	148 if (!getargs(args, "(OOO)", &ifdlist, &ofdlist, &efdlist) )
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	149 return 0;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	150 tvp = (struct timeval *)0;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	151 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	152 if ( !is_listobject(ifdlist) \|\| !is_listobject(ofdlist) \|\|
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	153 !is_listobject(efdlist) ) {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	154 err_badarg();
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	155 return 0;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	156 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	157
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	158 /* Convert lists to fd_sets, and get maximum fd number */
2611 01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	159 if( (imax=list2set(ifdlist, &ifdset, rfd2obj)) < 0 )
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	160 return 0;
2611 01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	161 if( (omax=list2set(ofdlist, &ofdset, wfd2obj)) < 0 )
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	162 return 0;
2611 01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	163 if( (emax=list2set(efdlist, &efdset, efd2obj)) < 0 )
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	164 return 0;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	165 max = imax;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	166 if ( omax > max ) max = omax;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	167 if ( emax > max ) max = emax;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	168
926 c156d4960c2b * Makefile: cosmetics Guido van Rossum <guido@python.org> parents: 922 diff changeset	169 BGN_SAVE
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	170 n = select(max, &ifdset, &ofdset, &efdset, tvp);
926 c156d4960c2b * Makefile: cosmetics Guido van Rossum <guido@python.org> parents: 922 diff changeset	171 END_SAVE
902 a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	172
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	173 if ( n < 0 ) {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	174 err_errno(SelectError);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	175 return 0;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	176 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	177
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	178 if ( n == 0 )
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	179 imax = omax = emax = 0; /* Speedup hack */
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	180
2611 01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	181 ifdlist = set2list(&ifdset, imax, rfd2obj);
01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	182 ofdlist = set2list(&ofdset, omax, wfd2obj);
01687ce43708 fix subtle refcnt bug Guido van Rossum <guido@python.org> parents: 2061 diff changeset	183 efdlist = set2list(&efdset, emax, efd2obj);
1207 b564bd4e57e1 * ceval.c: ifdef out the last argument passing compat hack. Guido van Rossum <guido@python.org> parents: 927 diff changeset	184 ret = mkvalue("OOO", ifdlist, ofdlist, efdlist);
b564bd4e57e1 * ceval.c: ifdef out the last argument passing compat hack. Guido van Rossum <guido@python.org> parents: 927 diff changeset	185 XDECREF(ifdlist);
b564bd4e57e1 * ceval.c: ifdef out the last argument passing compat hack. Guido van Rossum <guido@python.org> parents: 927 diff changeset	186 XDECREF(ofdlist);
b564bd4e57e1 * ceval.c: ifdef out the last argument passing compat hack. Guido van Rossum <guido@python.org> parents: 927 diff changeset	187 XDECREF(efdlist);
b564bd4e57e1 * ceval.c: ifdef out the last argument passing compat hack. Guido van Rossum <guido@python.org> parents: 927 diff changeset	188 return ret;
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 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	190
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	191
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	192 static struct methodlist select_methods[] = {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	193 { "select", select_select },
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	194 { 0, 0 },
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	195 };
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	196
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	197
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	198 void
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	199 initselect()
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	200 {
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	201 object m, d;
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	202 m = initmodule("select", select_methods);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	203 d = getmoduledict(m);
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	204 SelectError = newstringobject("select.error");
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	205 if ( SelectError == NULL \|\| dictinsert(d, "error", SelectError) )
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	206 fatal("Cannot define select.error");
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for Guido van Rossum <guido@python.org> parents: diff changeset	207 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/selectmodule.c @ 2611:01687ce43708 legacy-trunk