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

annotate Modules/fcntlmodule.c @ 3720:b341def4eef8 legacy-trunk

Ignore latex intermediate products.

author	Guido van Rossum <guido@python.org>
date	Wed, 26 Jun 1996 19:30:01 +0000
parents	399470a958c2
children	69bbc21f55cf

rev	line source
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). 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.
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	4
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	5 All Rights Reserved
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	6
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	7 Permission to use, copy, modify, and distribute this software and its
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	8 documentation for any purpose and without fee is hereby granted,
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	9 provided that the above copyright notice appear in all copies and that
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	10 both that copyright notice and this permission notice appear in
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	11 supporting documentation, and that the names of Stichting Mathematisch
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	12 Centrum or CWI not be used in advertising or publicity pertaining to
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	13 distribution of the software without specific, written prior permission.
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	14
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	22
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	23 ******************************************************************/
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	24
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	25 /* fcntl module */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	26
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	27 #include "allobjects.h"
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	28 #include "modsupport.h"
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	29
3662 399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	30 #include <fcntl.h>
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	31
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	32
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	33 /* fcntl(fd, opt, [arg]) */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	34
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	35 static object *
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	36 fcntl_fcntl(self, args)
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	37 object self; / Not used */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	38 object *args;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	39 {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	40 int fd;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	41 int code;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	42 int arg;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	43 int ret;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	44 char *str;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	45 int len;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	46 char buf[1024];
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	47
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	48 if (getargs(args, "(iis#)", &fd, &code, &str, &len)) {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	49 if (len > sizeof buf) {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	50 err_setstr(ValueError, "fcntl string arg too long");
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	51 return NULL;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	52 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	53 memcpy(buf, str, len);
3153 9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	54 BGN_SAVE
9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	55 ret = fcntl(fd, code, buf);
9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	56 END_SAVE
9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	57 if (ret < 0) {
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	58 err_errno(IOError);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	59 return NULL;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	60 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	61 return newsizedstringobject(buf, len);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	62 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	63
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	64 err_clear();
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	65 if (getargs(args, "(ii)", &fd, &code))
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	66 arg = 0;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	67 else {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	68 err_clear();
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	69 if (!getargs(args, "(iii)", &fd, &code, &arg))
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	70 return NULL;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	71 }
3153 9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	72 BGN_SAVE
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	73 ret = fcntl(fd, code, arg);
3153 9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	74 END_SAVE
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	75 if (ret < 0) {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	76 err_errno(IOError);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	77 return NULL;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	78 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	79 return newintobject((long)ret);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	80 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	81
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	82
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	83 /* ioctl(fd, opt, [arg]) */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	84
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	85 static object *
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	86 fcntl_ioctl(self, args)
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	87 object self; / Not used */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	88 object *args;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	89 {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	90 int fd;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	91 int code;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	92 int arg;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	93 int ret;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	94 char *str;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	95 int len;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	96 char buf[1024];
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	97
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	98 if (getargs(args, "(iis#)", &fd, &code, &str, &len)) {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	99 if (len > sizeof buf) {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	100 err_setstr(ValueError, "ioctl string arg too long");
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	101 return NULL;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	102 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	103 memcpy(buf, str, len);
3153 9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	104 BGN_SAVE
9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	105 ret = ioctl(fd, code, buf);
9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	106 END_SAVE
9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	107 if (ret < 0) {
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	108 err_errno(IOError);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	109 return NULL;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	110 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	111 return newsizedstringobject(buf, len);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	112 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	113
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	114 err_clear();
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	115 if (getargs(args, "(ii)", &fd, &code))
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	116 arg = 0;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	117 else {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	118 err_clear();
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	119 if (!getargs(args, "(iii)", &fd, &code, &arg))
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	120 return NULL;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	121 }
3153 9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	122 BGN_SAVE
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	123 ret = ioctl(fd, code, arg);
3153 9a896086d3c3 add BGN/END_SAVE macros around fcntl/ioctl calls Guido van Rossum <guido@python.org> parents: 2061 diff changeset	124 END_SAVE
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	125 if (ret < 0) {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	126 err_errno(IOError);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	127 return NULL;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	128 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	129 return newintobject((long)ret);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	130 }
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	131
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	132
3598 6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	133 /* flock(fd, operation) */
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	134
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	135 static object *
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	136 fcntl_flock(self, args)
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	137 object self; / Not used */
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	138 object *args;
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	139 {
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	140 int fd;
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	141 int code;
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	142 int ret;
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	143 FILE *f;
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	144
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	145 if (!getargs(args, "(ii)", &fd, &code))
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	146 return NULL;
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	147
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	148 BGN_SAVE
3662 399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	149 #ifdef HAVE_FLOCK
3598 6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	150 ret = flock(fd, code);
3662 399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	151 #else
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	152
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	153 #ifndef LOCK_SH
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	154 #define LOCK_SH 1 /* shared lock */
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	155 #define LOCK_EX 2 /* exclusive lock */
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	156 #define LOCK_NB 4 /* don't block when locking */
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	157 #define LOCK_UN 8 /* unlock */
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	158 #endif
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	159 {
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	160 struct flock l;
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	161 if (code == LOCK_UN)
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	162 l.l_type = F_UNLCK;
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	163 else if (code & LOCK_SH)
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	164 l.l_type = F_RDLCK;
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	165 else if (code & LOCK_EX)
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	166 l.l_type = F_WRLCK;
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	167 else {
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	168 err_setstr(ValueError, "unrecognized flock argument");
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	169 return NULL;
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	170 }
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	171 l.l_whence = l.l_start = l.l_len = 0;
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	172 ret = fcntl(fd, (code & LOCK_NB) ? F_SETLK : F_SETLKW, &l);
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	173 }
399470a958c2 A fcntl implementation for systems (like Solaris) without flock() call. Guido van Rossum <guido@python.org> parents: 3598 diff changeset	174 #endif /* HAVE_FLOCK */
3598 6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	175 END_SAVE
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	176 if (ret < 0) {
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	177 err_errno(IOError);
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	178 return NULL;
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	179 }
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	180 INCREF(None);
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	181 return None;
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	182 }
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	183
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	184
6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	185
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	186 /* List of functions */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	187
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	188 static struct methodlist fcntl_methods[] = {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	189 {"fcntl", fcntl_fcntl},
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	190 {"ioctl", fcntl_ioctl},
3598 6c9260ae0d16 Added flock(). Guido van Rossum <guido@python.org> parents: 3153 diff changeset	191 {"flock", fcntl_flock},
960 7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	192 {NULL, NULL} /* sentinel */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	193 };
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	194
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	195
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	196 /* Module initialisation */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	197
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	198 void
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	199 initfcntl()
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	200 {
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	201 object m, d;
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	202
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	203 /* Create the module and add the functions */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	204 m = initmodule("fcntl", fcntl_methods);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	205
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	206 /* Add some symbolic constants to the module */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	207 d = getmoduledict(m);
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	208
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	209 /* Check for errors */
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	210 if (err_occurred())
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	211 fatal("can't initialize module fcntl");
7d3a053c6765 struct: pack/unpack binary structs; fcntl: fcntl(), ioctl(). Guido van Rossum <guido@python.org> parents: diff changeset	212 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/fcntlmodule.c @ 3720:b341def4eef8 legacy-trunk