cpython/Modules/signalmodule.c

1444 lines
36 KiB
C
Raw Normal View History

/* Signal module -- many thanks to Lance Ellinghaus */
/* XXX Signals should be recorded per thread, now we have thread state. */
#include "Python.h"
#ifdef MS_WINDOWS
#include <Windows.h>
Merged revisions 78338,78345-78346,78561-78562,78566,78574,78581,78634,78660,78675 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r78338 | andrew.kuchling | 2010-02-22 15:04:02 -0600 (Mon, 22 Feb 2010) | 4 lines Remove Tools/modulator, a reference to it in the docs, and a screenshot of it. (I asked the BDFL first, and he approved removing it. The last actual bugfix to Tools/modulator was in 2001; since then all changes have been search-and-replace: string methods, whitespace fixes, etc.) ........ r78345 | andrew.kuchling | 2010-02-22 17:10:52 -0600 (Mon, 22 Feb 2010) | 1 line #7706: DONT_HAVE_ERRNO_H is no longer defined by configure (after rev.46819). ........ r78346 | andrew.kuchling | 2010-02-22 17:12:00 -0600 (Mon, 22 Feb 2010) | 1 line #7706: add include guards where they're missing; required for Windows CE ........ r78561 | andrew.kuchling | 2010-03-01 13:51:43 -0600 (Mon, 01 Mar 2010) | 1 line #7191: describe more details of wbits parameter ........ r78562 | andrew.kuchling | 2010-03-01 14:11:57 -0600 (Mon, 01 Mar 2010) | 1 line #7637: avoid repeated-concatenation antipattern in example ........ r78566 | barry.warsaw | 2010-03-01 15:46:51 -0600 (Mon, 01 Mar 2010) | 4 lines Manually copy patch for bug 7250 from the release26-maint branch. I suck because I did this in the wrong order and couldn't smack svnmerge into submission. ........ r78574 | benjamin.peterson | 2010-03-01 17:25:13 -0600 (Mon, 01 Mar 2010) | 1 line remove CVS id ........ r78581 | michael.foord | 2010-03-02 08:22:15 -0600 (Tue, 02 Mar 2010) | 1 line Link correction in documentation. ........ r78634 | benjamin.peterson | 2010-03-03 15:28:25 -0600 (Wed, 03 Mar 2010) | 1 line rephrase ........ r78660 | dirkjan.ochtman | 2010-03-04 13:21:53 -0600 (Thu, 04 Mar 2010) | 4 lines Try to fix buildbot breakage from r78384. Thanks bitdancer and briancurtin for the help. ........ r78675 | florent.xicluna | 2010-03-04 19:12:14 -0600 (Thu, 04 Mar 2010) | 2 lines These line should not be there. ........
2010-03-21 19:36:19 -03:00
#ifdef HAVE_PROCESS_H
#include <process.h>
#endif
Merged revisions 78338,78345-78346,78561-78562,78566,78574,78581,78634,78660,78675 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r78338 | andrew.kuchling | 2010-02-22 15:04:02 -0600 (Mon, 22 Feb 2010) | 4 lines Remove Tools/modulator, a reference to it in the docs, and a screenshot of it. (I asked the BDFL first, and he approved removing it. The last actual bugfix to Tools/modulator was in 2001; since then all changes have been search-and-replace: string methods, whitespace fixes, etc.) ........ r78345 | andrew.kuchling | 2010-02-22 17:10:52 -0600 (Mon, 22 Feb 2010) | 1 line #7706: DONT_HAVE_ERRNO_H is no longer defined by configure (after rev.46819). ........ r78346 | andrew.kuchling | 2010-02-22 17:12:00 -0600 (Mon, 22 Feb 2010) | 1 line #7706: add include guards where they're missing; required for Windows CE ........ r78561 | andrew.kuchling | 2010-03-01 13:51:43 -0600 (Mon, 01 Mar 2010) | 1 line #7191: describe more details of wbits parameter ........ r78562 | andrew.kuchling | 2010-03-01 14:11:57 -0600 (Mon, 01 Mar 2010) | 1 line #7637: avoid repeated-concatenation antipattern in example ........ r78566 | barry.warsaw | 2010-03-01 15:46:51 -0600 (Mon, 01 Mar 2010) | 4 lines Manually copy patch for bug 7250 from the release26-maint branch. I suck because I did this in the wrong order and couldn't smack svnmerge into submission. ........ r78574 | benjamin.peterson | 2010-03-01 17:25:13 -0600 (Mon, 01 Mar 2010) | 1 line remove CVS id ........ r78581 | michael.foord | 2010-03-02 08:22:15 -0600 (Tue, 02 Mar 2010) | 1 line Link correction in documentation. ........ r78634 | benjamin.peterson | 2010-03-03 15:28:25 -0600 (Wed, 03 Mar 2010) | 1 line rephrase ........ r78660 | dirkjan.ochtman | 2010-03-04 13:21:53 -0600 (Thu, 04 Mar 2010) | 4 lines Try to fix buildbot breakage from r78384. Thanks bitdancer and briancurtin for the help. ........ r78675 | florent.xicluna | 2010-03-04 19:12:14 -0600 (Thu, 04 Mar 2010) | 2 lines These line should not be there. ........
2010-03-21 19:36:19 -03:00
#endif
Merged revisions 78338,78345-78346,78561-78562,78566,78574,78581,78634,78660,78675 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r78338 | andrew.kuchling | 2010-02-22 15:04:02 -0600 (Mon, 22 Feb 2010) | 4 lines Remove Tools/modulator, a reference to it in the docs, and a screenshot of it. (I asked the BDFL first, and he approved removing it. The last actual bugfix to Tools/modulator was in 2001; since then all changes have been search-and-replace: string methods, whitespace fixes, etc.) ........ r78345 | andrew.kuchling | 2010-02-22 17:10:52 -0600 (Mon, 22 Feb 2010) | 1 line #7706: DONT_HAVE_ERRNO_H is no longer defined by configure (after rev.46819). ........ r78346 | andrew.kuchling | 2010-02-22 17:12:00 -0600 (Mon, 22 Feb 2010) | 1 line #7706: add include guards where they're missing; required for Windows CE ........ r78561 | andrew.kuchling | 2010-03-01 13:51:43 -0600 (Mon, 01 Mar 2010) | 1 line #7191: describe more details of wbits parameter ........ r78562 | andrew.kuchling | 2010-03-01 14:11:57 -0600 (Mon, 01 Mar 2010) | 1 line #7637: avoid repeated-concatenation antipattern in example ........ r78566 | barry.warsaw | 2010-03-01 15:46:51 -0600 (Mon, 01 Mar 2010) | 4 lines Manually copy patch for bug 7250 from the release26-maint branch. I suck because I did this in the wrong order and couldn't smack svnmerge into submission. ........ r78574 | benjamin.peterson | 2010-03-01 17:25:13 -0600 (Mon, 01 Mar 2010) | 1 line remove CVS id ........ r78581 | michael.foord | 2010-03-02 08:22:15 -0600 (Tue, 02 Mar 2010) | 1 line Link correction in documentation. ........ r78634 | benjamin.peterson | 2010-03-03 15:28:25 -0600 (Wed, 03 Mar 2010) | 1 line rephrase ........ r78660 | dirkjan.ochtman | 2010-03-04 13:21:53 -0600 (Thu, 04 Mar 2010) | 4 lines Try to fix buildbot breakage from r78384. Thanks bitdancer and briancurtin for the help. ........ r78675 | florent.xicluna | 2010-03-04 19:12:14 -0600 (Thu, 04 Mar 2010) | 2 lines These line should not be there. ........
2010-03-21 19:36:19 -03:00
#ifdef HAVE_SIGNAL_H
#include <signal.h>
Merged revisions 78338,78345-78346,78561-78562,78566,78574,78581,78634,78660,78675 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r78338 | andrew.kuchling | 2010-02-22 15:04:02 -0600 (Mon, 22 Feb 2010) | 4 lines Remove Tools/modulator, a reference to it in the docs, and a screenshot of it. (I asked the BDFL first, and he approved removing it. The last actual bugfix to Tools/modulator was in 2001; since then all changes have been search-and-replace: string methods, whitespace fixes, etc.) ........ r78345 | andrew.kuchling | 2010-02-22 17:10:52 -0600 (Mon, 22 Feb 2010) | 1 line #7706: DONT_HAVE_ERRNO_H is no longer defined by configure (after rev.46819). ........ r78346 | andrew.kuchling | 2010-02-22 17:12:00 -0600 (Mon, 22 Feb 2010) | 1 line #7706: add include guards where they're missing; required for Windows CE ........ r78561 | andrew.kuchling | 2010-03-01 13:51:43 -0600 (Mon, 01 Mar 2010) | 1 line #7191: describe more details of wbits parameter ........ r78562 | andrew.kuchling | 2010-03-01 14:11:57 -0600 (Mon, 01 Mar 2010) | 1 line #7637: avoid repeated-concatenation antipattern in example ........ r78566 | barry.warsaw | 2010-03-01 15:46:51 -0600 (Mon, 01 Mar 2010) | 4 lines Manually copy patch for bug 7250 from the release26-maint branch. I suck because I did this in the wrong order and couldn't smack svnmerge into submission. ........ r78574 | benjamin.peterson | 2010-03-01 17:25:13 -0600 (Mon, 01 Mar 2010) | 1 line remove CVS id ........ r78581 | michael.foord | 2010-03-02 08:22:15 -0600 (Tue, 02 Mar 2010) | 1 line Link correction in documentation. ........ r78634 | benjamin.peterson | 2010-03-03 15:28:25 -0600 (Wed, 03 Mar 2010) | 1 line rephrase ........ r78660 | dirkjan.ochtman | 2010-03-04 13:21:53 -0600 (Thu, 04 Mar 2010) | 4 lines Try to fix buildbot breakage from r78384. Thanks bitdancer and briancurtin for the help. ........ r78675 | florent.xicluna | 2010-03-04 19:12:14 -0600 (Thu, 04 Mar 2010) | 2 lines These line should not be there. ........
2010-03-21 19:36:19 -03:00
#endif
#ifdef HAVE_SYS_STAT_H
Merged revisions 59565-59594 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r59568 | facundo.batista | 2007-12-19 13:53:01 +0100 (Wed, 19 Dec 2007) | 3 lines Some minor cleanups. Thanks Mark Dickinson. ........ r59573 | raymond.hettinger | 2007-12-19 19:13:31 +0100 (Wed, 19 Dec 2007) | 1 line Fix issue 1661: Flags argument silently ignored in re functions with compiled regexes. ........ r59574 | guido.van.rossum | 2007-12-19 20:41:06 +0100 (Wed, 19 Dec 2007) | 7 lines Patch #1583 by Adam Olsen. This adds signal.set_wakeup_fd(fd) which sets a file descriptor to which a zero byte will be written whenever a C exception handler runs. I added a simple C API as well, PySignal_SetWakeupFd(fd). ........ r59575 | raymond.hettinger | 2007-12-19 23:14:34 +0100 (Wed, 19 Dec 2007) | 1 line Bigger range for non-extended opargs. ........ r59576 | guido.van.rossum | 2007-12-19 23:51:13 +0100 (Wed, 19 Dec 2007) | 5 lines Patch #1549 by Thomas Herve. This changes the rules for when __hash__ is inherited slightly, by allowing it to be inherited when one or more of __lt__, __le__, __gt__, __ge__ are overridden, as long as __eq__ and __ne__ aren't. ........ r59577 | raymond.hettinger | 2007-12-20 02:25:05 +0100 (Thu, 20 Dec 2007) | 1 line Add comments ........ r59578 | brett.cannon | 2007-12-20 11:09:52 +0100 (Thu, 20 Dec 2007) | 3 lines Add tests for the warnings module; specifically formatwarning and showwarning. Still need tests for warn_explicit and simplefilter. ........ r59582 | guido.van.rossum | 2007-12-20 18:28:10 +0100 (Thu, 20 Dec 2007) | 2 lines Patch #1672 by Joseph Armbruster. Use tempdir() to get a temporary directory. ........ r59584 | georg.brandl | 2007-12-20 22:03:02 +0100 (Thu, 20 Dec 2007) | 2 lines Fix refleak introduced in r59576. ........ r59586 | guido.van.rossum | 2007-12-21 00:48:28 +0100 (Fri, 21 Dec 2007) | 4 lines Improve performance of built-in any()/all() by avoiding PyIter_Next() -- using a trick found in ifilter(). Feel free to backport to 2.5. ........ r59591 | andrew.kuchling | 2007-12-22 18:27:02 +0100 (Sat, 22 Dec 2007) | 1 line Add item ........
2007-12-24 04:52:31 -04:00
#include <sys/stat.h>
Merged revisions 78338,78345-78346,78561-78562,78566,78574,78581,78634,78660,78675 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r78338 | andrew.kuchling | 2010-02-22 15:04:02 -0600 (Mon, 22 Feb 2010) | 4 lines Remove Tools/modulator, a reference to it in the docs, and a screenshot of it. (I asked the BDFL first, and he approved removing it. The last actual bugfix to Tools/modulator was in 2001; since then all changes have been search-and-replace: string methods, whitespace fixes, etc.) ........ r78345 | andrew.kuchling | 2010-02-22 17:10:52 -0600 (Mon, 22 Feb 2010) | 1 line #7706: DONT_HAVE_ERRNO_H is no longer defined by configure (after rev.46819). ........ r78346 | andrew.kuchling | 2010-02-22 17:12:00 -0600 (Mon, 22 Feb 2010) | 1 line #7706: add include guards where they're missing; required for Windows CE ........ r78561 | andrew.kuchling | 2010-03-01 13:51:43 -0600 (Mon, 01 Mar 2010) | 1 line #7191: describe more details of wbits parameter ........ r78562 | andrew.kuchling | 2010-03-01 14:11:57 -0600 (Mon, 01 Mar 2010) | 1 line #7637: avoid repeated-concatenation antipattern in example ........ r78566 | barry.warsaw | 2010-03-01 15:46:51 -0600 (Mon, 01 Mar 2010) | 4 lines Manually copy patch for bug 7250 from the release26-maint branch. I suck because I did this in the wrong order and couldn't smack svnmerge into submission. ........ r78574 | benjamin.peterson | 2010-03-01 17:25:13 -0600 (Mon, 01 Mar 2010) | 1 line remove CVS id ........ r78581 | michael.foord | 2010-03-02 08:22:15 -0600 (Tue, 02 Mar 2010) | 1 line Link correction in documentation. ........ r78634 | benjamin.peterson | 2010-03-03 15:28:25 -0600 (Wed, 03 Mar 2010) | 1 line rephrase ........ r78660 | dirkjan.ochtman | 2010-03-04 13:21:53 -0600 (Thu, 04 Mar 2010) | 4 lines Try to fix buildbot breakage from r78384. Thanks bitdancer and briancurtin for the help. ........ r78675 | florent.xicluna | 2010-03-04 19:12:14 -0600 (Thu, 04 Mar 2010) | 2 lines These line should not be there. ........
2010-03-21 19:36:19 -03:00
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
Merged revisions 59565-59594 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r59568 | facundo.batista | 2007-12-19 13:53:01 +0100 (Wed, 19 Dec 2007) | 3 lines Some minor cleanups. Thanks Mark Dickinson. ........ r59573 | raymond.hettinger | 2007-12-19 19:13:31 +0100 (Wed, 19 Dec 2007) | 1 line Fix issue 1661: Flags argument silently ignored in re functions with compiled regexes. ........ r59574 | guido.van.rossum | 2007-12-19 20:41:06 +0100 (Wed, 19 Dec 2007) | 7 lines Patch #1583 by Adam Olsen. This adds signal.set_wakeup_fd(fd) which sets a file descriptor to which a zero byte will be written whenever a C exception handler runs. I added a simple C API as well, PySignal_SetWakeupFd(fd). ........ r59575 | raymond.hettinger | 2007-12-19 23:14:34 +0100 (Wed, 19 Dec 2007) | 1 line Bigger range for non-extended opargs. ........ r59576 | guido.van.rossum | 2007-12-19 23:51:13 +0100 (Wed, 19 Dec 2007) | 5 lines Patch #1549 by Thomas Herve. This changes the rules for when __hash__ is inherited slightly, by allowing it to be inherited when one or more of __lt__, __le__, __gt__, __ge__ are overridden, as long as __eq__ and __ne__ aren't. ........ r59577 | raymond.hettinger | 2007-12-20 02:25:05 +0100 (Thu, 20 Dec 2007) | 1 line Add comments ........ r59578 | brett.cannon | 2007-12-20 11:09:52 +0100 (Thu, 20 Dec 2007) | 3 lines Add tests for the warnings module; specifically formatwarning and showwarning. Still need tests for warn_explicit and simplefilter. ........ r59582 | guido.van.rossum | 2007-12-20 18:28:10 +0100 (Thu, 20 Dec 2007) | 2 lines Patch #1672 by Joseph Armbruster. Use tempdir() to get a temporary directory. ........ r59584 | georg.brandl | 2007-12-20 22:03:02 +0100 (Thu, 20 Dec 2007) | 2 lines Fix refleak introduced in r59576. ........ r59586 | guido.van.rossum | 2007-12-21 00:48:28 +0100 (Fri, 21 Dec 2007) | 4 lines Improve performance of built-in any()/all() by avoiding PyIter_Next() -- using a trick found in ifilter(). Feel free to backport to 2.5. ........ r59591 | andrew.kuchling | 2007-12-22 18:27:02 +0100 (Sat, 22 Dec 2007) | 1 line Add item ........
2007-12-24 04:52:31 -04:00
#if defined(HAVE_PTHREAD_SIGMASK) && !defined(HAVE_BROKEN_PTHREAD_SIGMASK)
# define PYPTHREAD_SIGMASK
#endif
#if defined(PYPTHREAD_SIGMASK) && defined(HAVE_PTHREAD_H)
# include <pthread.h>
#endif
#ifndef SIG_ERR
#define SIG_ERR ((PyOS_sighandler_t)(-1))
#endif
#ifndef NSIG
# if defined(_NSIG)
# define NSIG _NSIG /* For BSD/SysV */
# elif defined(_SIGMAX)
# define NSIG (_SIGMAX + 1) /* For QNX */
# elif defined(SIGMAX)
# define NSIG (SIGMAX + 1) /* For djgpp */
# else
# define NSIG 64 /* Use a reasonable default value */
# endif
#endif
/*
NOTES ON THE INTERACTION BETWEEN SIGNALS AND THREADS
When threads are supported, we want the following semantics:
- only the main thread can set a signal handler
- any thread can get a signal handler
- signals are only delivered to the main thread
I.e. we don't support "synchronous signals" like SIGFPE (catching
this doesn't make much sense in Python anyway) nor do we support
signals as a means of inter-thread communication, since not all
thread implementations support that (at least our thread library
doesn't).
We still have the problem that in some implementations signals
generated by the keyboard (e.g. SIGINT) are delivered to all
threads (e.g. SGI), while in others (e.g. Solaris) such signals are
delivered to one random thread (an intermediate possibility would
1995-01-12 07:29:01 -04:00
be to deliver it to the main thread -- POSIX?). For now, we have
a working implementation that works in all three cases -- the
handler ignores signals if getpid() isn't the same as in the main
thread. XXX This is a hack.
GNU pth is a user-space threading library, and as such, all threads
run within the same process. In this case, if the currently running
thread is not the main_thread, send the signal to the main_thread.
*/
#ifdef WITH_THREAD
#include <sys/types.h> /* For pid_t */
1998-10-01 17:42:43 -03:00
#include "pythread.h"
static long main_thread;
static pid_t main_pid;
#endif
static volatile struct {
sig_atomic_t tripped;
PyObject *func;
} Handlers[NSIG];
static volatile sig_atomic_t wakeup_fd = -1;
Merged revisions 59565-59594 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r59568 | facundo.batista | 2007-12-19 13:53:01 +0100 (Wed, 19 Dec 2007) | 3 lines Some minor cleanups. Thanks Mark Dickinson. ........ r59573 | raymond.hettinger | 2007-12-19 19:13:31 +0100 (Wed, 19 Dec 2007) | 1 line Fix issue 1661: Flags argument silently ignored in re functions with compiled regexes. ........ r59574 | guido.van.rossum | 2007-12-19 20:41:06 +0100 (Wed, 19 Dec 2007) | 7 lines Patch #1583 by Adam Olsen. This adds signal.set_wakeup_fd(fd) which sets a file descriptor to which a zero byte will be written whenever a C exception handler runs. I added a simple C API as well, PySignal_SetWakeupFd(fd). ........ r59575 | raymond.hettinger | 2007-12-19 23:14:34 +0100 (Wed, 19 Dec 2007) | 1 line Bigger range for non-extended opargs. ........ r59576 | guido.van.rossum | 2007-12-19 23:51:13 +0100 (Wed, 19 Dec 2007) | 5 lines Patch #1549 by Thomas Herve. This changes the rules for when __hash__ is inherited slightly, by allowing it to be inherited when one or more of __lt__, __le__, __gt__, __ge__ are overridden, as long as __eq__ and __ne__ aren't. ........ r59577 | raymond.hettinger | 2007-12-20 02:25:05 +0100 (Thu, 20 Dec 2007) | 1 line Add comments ........ r59578 | brett.cannon | 2007-12-20 11:09:52 +0100 (Thu, 20 Dec 2007) | 3 lines Add tests for the warnings module; specifically formatwarning and showwarning. Still need tests for warn_explicit and simplefilter. ........ r59582 | guido.van.rossum | 2007-12-20 18:28:10 +0100 (Thu, 20 Dec 2007) | 2 lines Patch #1672 by Joseph Armbruster. Use tempdir() to get a temporary directory. ........ r59584 | georg.brandl | 2007-12-20 22:03:02 +0100 (Thu, 20 Dec 2007) | 2 lines Fix refleak introduced in r59576. ........ r59586 | guido.van.rossum | 2007-12-21 00:48:28 +0100 (Fri, 21 Dec 2007) | 4 lines Improve performance of built-in any()/all() by avoiding PyIter_Next() -- using a trick found in ifilter(). Feel free to backport to 2.5. ........ r59591 | andrew.kuchling | 2007-12-22 18:27:02 +0100 (Sat, 22 Dec 2007) | 1 line Add item ........
2007-12-24 04:52:31 -04:00
Merged revisions 59450-59464 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r59455 | guido.van.rossum | 2007-12-10 21:42:53 +0100 (Mon, 10 Dec 2007) | 2 lines Remove a 2.2-ism. ........ r59459 | christian.heimes | 2007-12-10 23:28:56 +0100 (Mon, 10 Dec 2007) | 4 lines Backport of r59456:59458 from py3k to trunk Issue #1580: New free format floating point representation based on "Floating-Point Printer Sample Code", by Robert G. Burger. For example repr(11./5) now returns '2.2' instead of '2.2000000000000002'. Thanks to noam for the patch! I had to modify doubledigits.c slightly to support X64 and IA64 machines on Windows. I also added the new file to the three project files. ........ r59460 | guido.van.rossum | 2007-12-11 00:00:12 +0100 (Tue, 11 Dec 2007) | 4 lines Patch #1643738 by Ulisses Furquim -- make the is_tripped variable in signalmodule.c more robust. Includes Martin von Loewis's suggestion to set is_tripped after .tripped. ........ r59463 | kurt.kaiser | 2007-12-11 01:04:57 +0100 (Tue, 11 Dec 2007) | 2 lines format_paragraph_event wasn't returning 'break' ........ r59464 | christian.heimes | 2007-12-11 01:54:34 +0100 (Tue, 11 Dec 2007) | 3 lines The new float repr causes too much trouble and pain. I'm disabling the feature until we have sorted out the issues on all machines. 64bit machines seem to have issues and Guido has reported even worse. Guido: It's pretty bad actually -- repr(1e5) comes out as '1.0'... Ditto for repr(1eN) for most N... Both in 2.6 and in 3.0... ........
2007-12-10 21:06:40 -04:00
/* Speed up sigcheck() when none tripped */
static volatile sig_atomic_t is_tripped = 0;
static PyObject *DefaultHandler;
static PyObject *IgnoreHandler;
static PyObject *IntHandler;
/* On Solaris 8, gcc will produce a warning that the function
declaration is not a prototype. This is caused by the definition of
SIG_DFL as (void (*)())0; the correct declaration would have been
(void (*)(int))0. */
static PyOS_sighandler_t old_siginthandler = SIG_DFL;
#ifdef MS_WINDOWS
static HANDLE sigint_event = NULL;
#endif
#ifdef HAVE_GETITIMER
static PyObject *ItimerError;
/* auxiliary functions for setitimer/getitimer */
static void
timeval_from_double(double d, struct timeval *tv)
{
tv->tv_sec = floor(d);
tv->tv_usec = fmod(d, 1.0) * 1000000.0;
}
Py_LOCAL_INLINE(double)
double_from_timeval(struct timeval *tv)
{
return tv->tv_sec + (double)(tv->tv_usec / 1000000.0);
}
static PyObject *
itimer_retval(struct itimerval *iv)
{
PyObject *r, *v;
r = PyTuple_New(2);
if (r == NULL)
return NULL;
if(!(v = PyFloat_FromDouble(double_from_timeval(&iv->it_value)))) {
Py_DECREF(r);
return NULL;
}
PyTuple_SET_ITEM(r, 0, v);
if(!(v = PyFloat_FromDouble(double_from_timeval(&iv->it_interval)))) {
Py_DECREF(r);
return NULL;
}
PyTuple_SET_ITEM(r, 1, v);
return r;
}
#endif
static PyObject *
2000-07-10 09:04:18 -03:00
signal_default_int_handler(PyObject *self, PyObject *args)
{
PyErr_SetNone(PyExc_KeyboardInterrupt);
return NULL;
1995-03-10 11:13:48 -04:00
}
2002-06-13 17:33:02 -03:00
PyDoc_STRVAR(default_int_handler_doc,
1998-06-28 13:54:49 -03:00
"default_int_handler(...)\n\
\n\
2004-06-17 12:55:53 -03:00
The default handler for SIGINT installed by Python.\n\
2002-06-13 17:33:02 -03:00
It raises KeyboardInterrupt.");
1998-06-28 13:54:49 -03:00
static int
checksignals_witharg(void * unused)
{
return PyErr_CheckSignals();
}
static void
trip_signal(int sig_num)
{
unsigned char byte;
Handlers[sig_num].tripped = 1;
if (wakeup_fd != -1) {
byte = (unsigned char)sig_num;
write(wakeup_fd, &byte, 1);
}
if (is_tripped)
return;
/* Set is_tripped after setting .tripped, as it gets
cleared in PyErr_CheckSignals() before .tripped. */
is_tripped = 1;
Py_AddPendingCall(checksignals_witharg, NULL);
}
static void
2000-07-10 09:04:18 -03:00
signal_handler(int sig_num)
{
int save_errno = errno;
#if defined(WITH_THREAD) && defined(WITH_PTH)
if (PyThread_get_thread_ident() != main_thread) {
pth_raise(*(pth_t *) main_thread, sig_num);
}
else
#endif
{
#ifdef WITH_THREAD
/* See NOTES section above */
if (getpid() == main_pid)
#endif
{
trip_signal(sig_num);
}
#ifndef HAVE_SIGACTION
#ifdef SIGCHLD
/* To avoid infinite recursion, this signal remains
reset until explicit re-instated.
Don't clear the 'func' field as it is our pointer
to the Python handler... */
if (sig_num != SIGCHLD)
#endif
/* If the handler was not set up with sigaction, reinstall it. See
* Python/pythonrun.c for the implementation of PyOS_setsig which
* makes this true. See also issue8354. */
PyOS_setsig(sig_num, signal_handler);
#endif
}
/* Issue #10311: asynchronously executing signal handlers should not
mutate errno under the feet of unsuspecting C code. */
errno = save_errno;
#ifdef MS_WINDOWS
if (sig_num == SIGINT)
SetEvent(sigint_event);
#endif
}
1995-03-10 11:13:48 -04:00
#ifdef HAVE_ALARM
static PyObject *
2000-07-10 09:04:18 -03:00
signal_alarm(PyObject *self, PyObject *args)
{
int t;
if (!PyArg_ParseTuple(args, "i:alarm", &t))
return NULL;
/* alarm() returns the number of seconds remaining */
return PyLong_FromLong((long)alarm(t));
}
1998-06-28 13:54:49 -03:00
2002-06-13 17:33:02 -03:00
PyDoc_STRVAR(alarm_doc,
1998-06-28 13:54:49 -03:00
"alarm(seconds)\n\
\n\
2002-06-13 17:33:02 -03:00
Arrange for SIGALRM to arrive after the given number of seconds.");
1995-03-10 11:13:48 -04:00
#endif
#ifdef HAVE_PAUSE
static PyObject *
signal_pause(PyObject *self)
{
Py_BEGIN_ALLOW_THREADS
(void)pause();
Py_END_ALLOW_THREADS
/* make sure that any exceptions that got raised are propagated
* back into Python
*/
if (PyErr_CheckSignals())
return NULL;
Py_INCREF(Py_None);
return Py_None;
}
2002-06-13 17:33:02 -03:00
PyDoc_STRVAR(pause_doc,
"pause()\n\
\n\
2002-06-13 17:33:02 -03:00
Wait until a signal arrives.");
1998-06-28 13:54:49 -03:00
1995-03-10 11:13:48 -04:00
#endif
static PyObject *
2000-07-10 09:04:18 -03:00
signal_signal(PyObject *self, PyObject *args)
{
PyObject *obj;
int sig_num;
PyObject *old_handler;
void (*func)(int);
if (!PyArg_ParseTuple(args, "iO:signal", &sig_num, &obj))
return NULL;
#ifdef MS_WINDOWS
/* Validate that sig_num is one of the allowable signals */
switch (sig_num) {
case SIGABRT: break;
#ifdef SIGBREAK
/* Issue #10003: SIGBREAK is not documented as permitted, but works
and corresponds to CTRL_BREAK_EVENT. */
case SIGBREAK: break;
#endif
case SIGFPE: break;
case SIGILL: break;
case SIGINT: break;
case SIGSEGV: break;
case SIGTERM: break;
default:
PyErr_SetString(PyExc_ValueError, "invalid signal value");
return NULL;
}
#endif
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread) {
PyErr_SetString(PyExc_ValueError,
"signal only works in main thread");
return NULL;
}
#endif
if (sig_num < 1 || sig_num >= NSIG) {
PyErr_SetString(PyExc_ValueError,
"signal number out of range");
return NULL;
}
if (obj == IgnoreHandler)
func = SIG_IGN;
else if (obj == DefaultHandler)
func = SIG_DFL;
else if (!PyCallable_Check(obj)) {
PyErr_SetString(PyExc_TypeError,
"signal handler must be signal.SIG_IGN, signal.SIG_DFL, or a callable object");
return NULL;
}
else
func = signal_handler;
if (PyOS_setsig(sig_num, func) == SIG_ERR) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
old_handler = Handlers[sig_num].func;
Handlers[sig_num].tripped = 0;
Py_INCREF(obj);
Handlers[sig_num].func = obj;
return old_handler;
}
2002-06-13 17:33:02 -03:00
PyDoc_STRVAR(signal_doc,
1998-06-28 13:54:49 -03:00
"signal(sig, action) -> action\n\
\n\
Set the action for the given signal. The action can be SIG_DFL,\n\
SIG_IGN, or a callable Python object. The previous action is\n\
returned. See getsignal() for possible return values.\n\
\n\
*** IMPORTANT NOTICE ***\n\
A signal handler function is called with two arguments:\n\
2002-06-13 17:33:02 -03:00
the first is the signal number, the second is the interrupted stack frame.");
1998-06-28 13:54:49 -03:00
static PyObject *
2000-07-10 09:04:18 -03:00
signal_getsignal(PyObject *self, PyObject *args)
{
int sig_num;
PyObject *old_handler;
if (!PyArg_ParseTuple(args, "i:getsignal", &sig_num))
return NULL;
if (sig_num < 1 || sig_num >= NSIG) {
PyErr_SetString(PyExc_ValueError,
"signal number out of range");
return NULL;
}
old_handler = Handlers[sig_num].func;
Py_INCREF(old_handler);
return old_handler;
}
2002-06-13 17:33:02 -03:00
PyDoc_STRVAR(getsignal_doc,
1998-06-28 13:54:49 -03:00
"getsignal(sig) -> action\n\
\n\
Return the current action for the given signal. The return value can be:\n\
SIG_IGN -- if the signal is being ignored\n\
SIG_DFL -- if the default action for the signal is in effect\n\
None -- if an unknown handler is in effect\n\
2002-06-13 17:33:02 -03:00
anything else -- the callable Python object used as a handler");
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900,60902-60906,60908,60911-60917,60919-60920,60922,60926,60929-60931,60933-60935,60937,60939-60941,60943-60954,60959-60961,60963-60964,60966-60967,60971,60977,60979-60989 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60980 | georg.brandl | 2008-02-23 16:02:28 +0100 (Sat, 23 Feb 2008) | 2 lines #1492: allow overriding BaseHTTPServer's content type for error messages. ........ r60982 | georg.brandl | 2008-02-23 16:06:25 +0100 (Sat, 23 Feb 2008) | 2 lines #2165: fix test_logging failure on some machines. ........ r60983 | facundo.batista | 2008-02-23 16:07:35 +0100 (Sat, 23 Feb 2008) | 6 lines Issue 1089358. Adds the siginterrupt() function, that is just a wrapper around the system call with the same name. Also added test cases, doc changes and NEWS entry. Thanks Jason and Ralf Schmitt. ........ r60984 | georg.brandl | 2008-02-23 16:11:18 +0100 (Sat, 23 Feb 2008) | 2 lines #2067: file.__exit__() now calls subclasses' close() method. ........ r60985 | georg.brandl | 2008-02-23 16:19:54 +0100 (Sat, 23 Feb 2008) | 2 lines More difflib examples. Written for GHOP by Josip Dzolonga. ........ r60987 | andrew.kuchling | 2008-02-23 16:41:51 +0100 (Sat, 23 Feb 2008) | 1 line #2072: correct documentation for .rpc_paths ........ r60988 | georg.brandl | 2008-02-23 16:43:48 +0100 (Sat, 23 Feb 2008) | 2 lines #2161: Fix opcode name. ........ r60989 | andrew.kuchling | 2008-02-23 16:49:35 +0100 (Sat, 23 Feb 2008) | 2 lines #1119331: ncurses will just call exit() if the terminal name isn't found. Call setupterm() first so that we get a Python exception instead of just existing. ........
2008-02-23 12:23:06 -04:00
#ifdef HAVE_SIGINTERRUPT
PyDoc_STRVAR(siginterrupt_doc,
"siginterrupt(sig, flag) -> None\n\
change system call restart behaviour: if flag is False, system calls\n\
will be restarted when interrupted by signal sig, else system calls\n\
will be interrupted.");
static PyObject *
signal_siginterrupt(PyObject *self, PyObject *args)
{
int sig_num;
int flag;
if (!PyArg_ParseTuple(args, "ii:siginterrupt", &sig_num, &flag))
return NULL;
if (sig_num < 1 || sig_num >= NSIG) {
PyErr_SetString(PyExc_ValueError,
"signal number out of range");
return NULL;
}
if (siginterrupt(sig_num, flag)<0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900,60902-60906,60908,60911-60917,60919-60920,60922,60926,60929-60931,60933-60935,60937,60939-60941,60943-60954,60959-60961,60963-60964,60966-60967,60971,60977,60979-60989 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60980 | georg.brandl | 2008-02-23 16:02:28 +0100 (Sat, 23 Feb 2008) | 2 lines #1492: allow overriding BaseHTTPServer's content type for error messages. ........ r60982 | georg.brandl | 2008-02-23 16:06:25 +0100 (Sat, 23 Feb 2008) | 2 lines #2165: fix test_logging failure on some machines. ........ r60983 | facundo.batista | 2008-02-23 16:07:35 +0100 (Sat, 23 Feb 2008) | 6 lines Issue 1089358. Adds the siginterrupt() function, that is just a wrapper around the system call with the same name. Also added test cases, doc changes and NEWS entry. Thanks Jason and Ralf Schmitt. ........ r60984 | georg.brandl | 2008-02-23 16:11:18 +0100 (Sat, 23 Feb 2008) | 2 lines #2067: file.__exit__() now calls subclasses' close() method. ........ r60985 | georg.brandl | 2008-02-23 16:19:54 +0100 (Sat, 23 Feb 2008) | 2 lines More difflib examples. Written for GHOP by Josip Dzolonga. ........ r60987 | andrew.kuchling | 2008-02-23 16:41:51 +0100 (Sat, 23 Feb 2008) | 1 line #2072: correct documentation for .rpc_paths ........ r60988 | georg.brandl | 2008-02-23 16:43:48 +0100 (Sat, 23 Feb 2008) | 2 lines #2161: Fix opcode name. ........ r60989 | andrew.kuchling | 2008-02-23 16:49:35 +0100 (Sat, 23 Feb 2008) | 2 lines #1119331: ncurses will just call exit() if the terminal name isn't found. Call setupterm() first so that we get a Python exception instead of just existing. ........
2008-02-23 12:23:06 -04:00
}
#endif
Merged revisions 59565-59594 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r59568 | facundo.batista | 2007-12-19 13:53:01 +0100 (Wed, 19 Dec 2007) | 3 lines Some minor cleanups. Thanks Mark Dickinson. ........ r59573 | raymond.hettinger | 2007-12-19 19:13:31 +0100 (Wed, 19 Dec 2007) | 1 line Fix issue 1661: Flags argument silently ignored in re functions with compiled regexes. ........ r59574 | guido.van.rossum | 2007-12-19 20:41:06 +0100 (Wed, 19 Dec 2007) | 7 lines Patch #1583 by Adam Olsen. This adds signal.set_wakeup_fd(fd) which sets a file descriptor to which a zero byte will be written whenever a C exception handler runs. I added a simple C API as well, PySignal_SetWakeupFd(fd). ........ r59575 | raymond.hettinger | 2007-12-19 23:14:34 +0100 (Wed, 19 Dec 2007) | 1 line Bigger range for non-extended opargs. ........ r59576 | guido.van.rossum | 2007-12-19 23:51:13 +0100 (Wed, 19 Dec 2007) | 5 lines Patch #1549 by Thomas Herve. This changes the rules for when __hash__ is inherited slightly, by allowing it to be inherited when one or more of __lt__, __le__, __gt__, __ge__ are overridden, as long as __eq__ and __ne__ aren't. ........ r59577 | raymond.hettinger | 2007-12-20 02:25:05 +0100 (Thu, 20 Dec 2007) | 1 line Add comments ........ r59578 | brett.cannon | 2007-12-20 11:09:52 +0100 (Thu, 20 Dec 2007) | 3 lines Add tests for the warnings module; specifically formatwarning and showwarning. Still need tests for warn_explicit and simplefilter. ........ r59582 | guido.van.rossum | 2007-12-20 18:28:10 +0100 (Thu, 20 Dec 2007) | 2 lines Patch #1672 by Joseph Armbruster. Use tempdir() to get a temporary directory. ........ r59584 | georg.brandl | 2007-12-20 22:03:02 +0100 (Thu, 20 Dec 2007) | 2 lines Fix refleak introduced in r59576. ........ r59586 | guido.van.rossum | 2007-12-21 00:48:28 +0100 (Fri, 21 Dec 2007) | 4 lines Improve performance of built-in any()/all() by avoiding PyIter_Next() -- using a trick found in ifilter(). Feel free to backport to 2.5. ........ r59591 | andrew.kuchling | 2007-12-22 18:27:02 +0100 (Sat, 22 Dec 2007) | 1 line Add item ........
2007-12-24 04:52:31 -04:00
static PyObject *
signal_set_wakeup_fd(PyObject *self, PyObject *args)
{
struct stat buf;
int fd, old_fd;
if (!PyArg_ParseTuple(args, "i:set_wakeup_fd", &fd))
return NULL;
Merged revisions 59565-59594 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r59568 | facundo.batista | 2007-12-19 13:53:01 +0100 (Wed, 19 Dec 2007) | 3 lines Some minor cleanups. Thanks Mark Dickinson. ........ r59573 | raymond.hettinger | 2007-12-19 19:13:31 +0100 (Wed, 19 Dec 2007) | 1 line Fix issue 1661: Flags argument silently ignored in re functions with compiled regexes. ........ r59574 | guido.van.rossum | 2007-12-19 20:41:06 +0100 (Wed, 19 Dec 2007) | 7 lines Patch #1583 by Adam Olsen. This adds signal.set_wakeup_fd(fd) which sets a file descriptor to which a zero byte will be written whenever a C exception handler runs. I added a simple C API as well, PySignal_SetWakeupFd(fd). ........ r59575 | raymond.hettinger | 2007-12-19 23:14:34 +0100 (Wed, 19 Dec 2007) | 1 line Bigger range for non-extended opargs. ........ r59576 | guido.van.rossum | 2007-12-19 23:51:13 +0100 (Wed, 19 Dec 2007) | 5 lines Patch #1549 by Thomas Herve. This changes the rules for when __hash__ is inherited slightly, by allowing it to be inherited when one or more of __lt__, __le__, __gt__, __ge__ are overridden, as long as __eq__ and __ne__ aren't. ........ r59577 | raymond.hettinger | 2007-12-20 02:25:05 +0100 (Thu, 20 Dec 2007) | 1 line Add comments ........ r59578 | brett.cannon | 2007-12-20 11:09:52 +0100 (Thu, 20 Dec 2007) | 3 lines Add tests for the warnings module; specifically formatwarning and showwarning. Still need tests for warn_explicit and simplefilter. ........ r59582 | guido.van.rossum | 2007-12-20 18:28:10 +0100 (Thu, 20 Dec 2007) | 2 lines Patch #1672 by Joseph Armbruster. Use tempdir() to get a temporary directory. ........ r59584 | georg.brandl | 2007-12-20 22:03:02 +0100 (Thu, 20 Dec 2007) | 2 lines Fix refleak introduced in r59576. ........ r59586 | guido.van.rossum | 2007-12-21 00:48:28 +0100 (Fri, 21 Dec 2007) | 4 lines Improve performance of built-in any()/all() by avoiding PyIter_Next() -- using a trick found in ifilter(). Feel free to backport to 2.5. ........ r59591 | andrew.kuchling | 2007-12-22 18:27:02 +0100 (Sat, 22 Dec 2007) | 1 line Add item ........
2007-12-24 04:52:31 -04:00
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread) {
PyErr_SetString(PyExc_ValueError,
"set_wakeup_fd only works in main thread");
return NULL;
}
#endif
if (fd != -1 && fstat(fd, &buf) != 0) {
PyErr_SetString(PyExc_ValueError, "invalid fd");
return NULL;
}
old_fd = wakeup_fd;
wakeup_fd = fd;
return PyLong_FromLong(old_fd);
Merged revisions 59565-59594 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r59568 | facundo.batista | 2007-12-19 13:53:01 +0100 (Wed, 19 Dec 2007) | 3 lines Some minor cleanups. Thanks Mark Dickinson. ........ r59573 | raymond.hettinger | 2007-12-19 19:13:31 +0100 (Wed, 19 Dec 2007) | 1 line Fix issue 1661: Flags argument silently ignored in re functions with compiled regexes. ........ r59574 | guido.van.rossum | 2007-12-19 20:41:06 +0100 (Wed, 19 Dec 2007) | 7 lines Patch #1583 by Adam Olsen. This adds signal.set_wakeup_fd(fd) which sets a file descriptor to which a zero byte will be written whenever a C exception handler runs. I added a simple C API as well, PySignal_SetWakeupFd(fd). ........ r59575 | raymond.hettinger | 2007-12-19 23:14:34 +0100 (Wed, 19 Dec 2007) | 1 line Bigger range for non-extended opargs. ........ r59576 | guido.van.rossum | 2007-12-19 23:51:13 +0100 (Wed, 19 Dec 2007) | 5 lines Patch #1549 by Thomas Herve. This changes the rules for when __hash__ is inherited slightly, by allowing it to be inherited when one or more of __lt__, __le__, __gt__, __ge__ are overridden, as long as __eq__ and __ne__ aren't. ........ r59577 | raymond.hettinger | 2007-12-20 02:25:05 +0100 (Thu, 20 Dec 2007) | 1 line Add comments ........ r59578 | brett.cannon | 2007-12-20 11:09:52 +0100 (Thu, 20 Dec 2007) | 3 lines Add tests for the warnings module; specifically formatwarning and showwarning. Still need tests for warn_explicit and simplefilter. ........ r59582 | guido.van.rossum | 2007-12-20 18:28:10 +0100 (Thu, 20 Dec 2007) | 2 lines Patch #1672 by Joseph Armbruster. Use tempdir() to get a temporary directory. ........ r59584 | georg.brandl | 2007-12-20 22:03:02 +0100 (Thu, 20 Dec 2007) | 2 lines Fix refleak introduced in r59576. ........ r59586 | guido.van.rossum | 2007-12-21 00:48:28 +0100 (Fri, 21 Dec 2007) | 4 lines Improve performance of built-in any()/all() by avoiding PyIter_Next() -- using a trick found in ifilter(). Feel free to backport to 2.5. ........ r59591 | andrew.kuchling | 2007-12-22 18:27:02 +0100 (Sat, 22 Dec 2007) | 1 line Add item ........
2007-12-24 04:52:31 -04:00
}
PyDoc_STRVAR(set_wakeup_fd_doc,
"set_wakeup_fd(fd) -> fd\n\
\n\
Sets the fd to be written to (with '\\0') when a signal\n\
comes in. A library can use this to wakeup select or poll.\n\
The previous fd is returned.\n\
\n\
The fd must be non-blocking.");
/* C API for the same, without all the error checking */
int
PySignal_SetWakeupFd(int fd)
{
int old_fd = wakeup_fd;
if (fd < 0)
fd = -1;
wakeup_fd = fd;
return old_fd;
Merged revisions 59565-59594 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r59568 | facundo.batista | 2007-12-19 13:53:01 +0100 (Wed, 19 Dec 2007) | 3 lines Some minor cleanups. Thanks Mark Dickinson. ........ r59573 | raymond.hettinger | 2007-12-19 19:13:31 +0100 (Wed, 19 Dec 2007) | 1 line Fix issue 1661: Flags argument silently ignored in re functions with compiled regexes. ........ r59574 | guido.van.rossum | 2007-12-19 20:41:06 +0100 (Wed, 19 Dec 2007) | 7 lines Patch #1583 by Adam Olsen. This adds signal.set_wakeup_fd(fd) which sets a file descriptor to which a zero byte will be written whenever a C exception handler runs. I added a simple C API as well, PySignal_SetWakeupFd(fd). ........ r59575 | raymond.hettinger | 2007-12-19 23:14:34 +0100 (Wed, 19 Dec 2007) | 1 line Bigger range for non-extended opargs. ........ r59576 | guido.van.rossum | 2007-12-19 23:51:13 +0100 (Wed, 19 Dec 2007) | 5 lines Patch #1549 by Thomas Herve. This changes the rules for when __hash__ is inherited slightly, by allowing it to be inherited when one or more of __lt__, __le__, __gt__, __ge__ are overridden, as long as __eq__ and __ne__ aren't. ........ r59577 | raymond.hettinger | 2007-12-20 02:25:05 +0100 (Thu, 20 Dec 2007) | 1 line Add comments ........ r59578 | brett.cannon | 2007-12-20 11:09:52 +0100 (Thu, 20 Dec 2007) | 3 lines Add tests for the warnings module; specifically formatwarning and showwarning. Still need tests for warn_explicit and simplefilter. ........ r59582 | guido.van.rossum | 2007-12-20 18:28:10 +0100 (Thu, 20 Dec 2007) | 2 lines Patch #1672 by Joseph Armbruster. Use tempdir() to get a temporary directory. ........ r59584 | georg.brandl | 2007-12-20 22:03:02 +0100 (Thu, 20 Dec 2007) | 2 lines Fix refleak introduced in r59576. ........ r59586 | guido.van.rossum | 2007-12-21 00:48:28 +0100 (Fri, 21 Dec 2007) | 4 lines Improve performance of built-in any()/all() by avoiding PyIter_Next() -- using a trick found in ifilter(). Feel free to backport to 2.5. ........ r59591 | andrew.kuchling | 2007-12-22 18:27:02 +0100 (Sat, 22 Dec 2007) | 1 line Add item ........
2007-12-24 04:52:31 -04:00
}
#ifdef HAVE_SETITIMER
static PyObject *
signal_setitimer(PyObject *self, PyObject *args)
{
double first;
double interval = 0;
int which;
struct itimerval new, old;
if(!PyArg_ParseTuple(args, "id|d:setitimer", &which, &first, &interval))
return NULL;
timeval_from_double(first, &new.it_value);
timeval_from_double(interval, &new.it_interval);
/* Let OS check "which" value */
if (setitimer(which, &new, &old) != 0) {
PyErr_SetFromErrno(ItimerError);
return NULL;
}
return itimer_retval(&old);
}
PyDoc_STRVAR(setitimer_doc,
"setitimer(which, seconds[, interval])\n\
\n\
Sets given itimer (one of ITIMER_REAL, ITIMER_VIRTUAL\n\
or ITIMER_PROF) to fire after value seconds and after\n\
that every interval seconds.\n\
The itimer can be cleared by setting seconds to zero.\n\
\n\
Returns old values as a tuple: (delay, interval).");
#endif
#ifdef HAVE_GETITIMER
static PyObject *
signal_getitimer(PyObject *self, PyObject *args)
{
int which;
struct itimerval old;
if (!PyArg_ParseTuple(args, "i:getitimer", &which))
return NULL;
if (getitimer(which, &old) != 0) {
PyErr_SetFromErrno(ItimerError);
return NULL;
}
return itimer_retval(&old);
}
PyDoc_STRVAR(getitimer_doc,
"getitimer(which)\n\
\n\
Returns current value of given itimer.");
#endif
#if defined(PYPTHREAD_SIGMASK) || defined(HAVE_SIGWAIT) || \
defined(HAVE_SIGWAITINFO) || defined(HAVE_SIGTIMEDWAIT)
/* Convert an iterable to a sigset.
Return 0 on success, return -1 and raise an exception on error. */
static int
iterable_to_sigset(PyObject *iterable, sigset_t *mask)
{
int result = -1;
PyObject *iterator, *item;
long signum;
int err;
sigemptyset(mask);
iterator = PyObject_GetIter(iterable);
if (iterator == NULL)
goto error;
while (1)
{
item = PyIter_Next(iterator);
if (item == NULL) {
if (PyErr_Occurred())
goto error;
else
break;
}
signum = PyLong_AsLong(item);
Py_DECREF(item);
if (signum == -1 && PyErr_Occurred())
goto error;
if (0 < signum && signum < NSIG)
err = sigaddset(mask, (int)signum);
else
err = 1;
if (err) {
PyErr_Format(PyExc_ValueError,
"signal number %ld out of range", signum);
goto error;
}
}
result = 0;
error:
Py_XDECREF(iterator);
return result;
}
#endif
#if defined(PYPTHREAD_SIGMASK) || defined(HAVE_SIGPENDING)
static PyObject*
sigset_to_set(sigset_t mask)
{
PyObject *signum, *result;
int sig;
result = PySet_New(0);
if (result == NULL)
return NULL;
for (sig = 1; sig < NSIG; sig++) {
if (sigismember(&mask, sig) != 1)
continue;
/* Handle the case where it is a member by adding the signal to
the result list. Ignore the other cases because they mean the
signal isn't a member of the mask or the signal was invalid,
and an invalid signal must have been our fault in constructing
the loop boundaries. */
signum = PyLong_FromLong(sig);
if (signum == NULL) {
Py_DECREF(result);
return NULL;
}
if (PySet_Add(result, signum) == -1) {
Py_DECREF(signum);
Py_DECREF(result);
return NULL;
}
Py_DECREF(signum);
}
return result;
}
#endif
#ifdef PYPTHREAD_SIGMASK
static PyObject *
signal_pthread_sigmask(PyObject *self, PyObject *args)
{
int how;
PyObject *signals;
sigset_t mask, previous;
int err;
if (!PyArg_ParseTuple(args, "iO:pthread_sigmask", &how, &signals))
return NULL;
if (iterable_to_sigset(signals, &mask))
return NULL;
err = pthread_sigmask(how, &mask, &previous);
if (err != 0) {
errno = err;
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
/* if signals was unblocked, signal handlers have been called */
if (PyErr_CheckSignals())
return NULL;
return sigset_to_set(previous);
}
PyDoc_STRVAR(signal_pthread_sigmask_doc,
"pthread_sigmask(how, mask) -> old mask\n\
\n\
Fetch and/or change the signal mask of the calling thread.");
#endif /* #ifdef PYPTHREAD_SIGMASK */
#ifdef HAVE_SIGPENDING
static PyObject *
signal_sigpending(PyObject *self)
{
int err;
sigset_t mask;
err = sigpending(&mask);
if (err)
return PyErr_SetFromErrno(PyExc_OSError);
return sigset_to_set(mask);
}
PyDoc_STRVAR(signal_sigpending_doc,
"sigpending() -> list\n\
\n\
Examine pending signals.");
#endif /* #ifdef HAVE_SIGPENDING */
#ifdef HAVE_SIGWAIT
static PyObject *
signal_sigwait(PyObject *self, PyObject *args)
{
PyObject *signals;
sigset_t set;
int err, signum;
if (!PyArg_ParseTuple(args, "O:sigwait", &signals))
return NULL;
if (iterable_to_sigset(signals, &set))
return NULL;
Py_BEGIN_ALLOW_THREADS
err = sigwait(&set, &signum);
Py_END_ALLOW_THREADS
if (err) {
errno = err;
return PyErr_SetFromErrno(PyExc_OSError);
}
return PyLong_FromLong(signum);
}
PyDoc_STRVAR(signal_sigwait_doc,
"sigwait(sigset) -> signum\n\
\n\
Wait a signal.");
#endif /* #ifdef HAVE_SIGPENDING */
#if defined(HAVE_SIGWAITINFO) || defined(HAVE_SIGTIMEDWAIT)
static int initialized;
static PyStructSequence_Field struct_siginfo_fields[] = {
{"si_signo", "signal number"},
{"si_code", "signal code"},
{"si_errno", "errno associated with this signal"},
{"si_pid", "sending process ID"},
{"si_uid", "real user ID of sending process"},
{"si_status", "exit value or signal"},
{"si_band", "band event for SIGPOLL"},
{0}
};
PyDoc_STRVAR(struct_siginfo__doc__,
"struct_siginfo: Result from sigwaitinfo or sigtimedwait.\n\n\
This object may be accessed either as a tuple of\n\
(si_signo, si_code, si_errno, si_pid, si_uid, si_status, si_band),\n\
or via the attributes si_signo, si_code, and so on.");
static PyStructSequence_Desc struct_siginfo_desc = {
"signal.struct_siginfo", /* name */
struct_siginfo__doc__, /* doc */
struct_siginfo_fields, /* fields */
7 /* n_in_sequence */
};
static PyTypeObject SiginfoType;
static PyObject *
fill_siginfo(siginfo_t *si)
{
PyObject *result = PyStructSequence_New(&SiginfoType);
if (!result)
return NULL;
PyStructSequence_SET_ITEM(result, 0, PyLong_FromLong((long)(si->si_signo)));
PyStructSequence_SET_ITEM(result, 1, PyLong_FromLong((long)(si->si_code)));
PyStructSequence_SET_ITEM(result, 2, PyLong_FromLong((long)(si->si_errno)));
PyStructSequence_SET_ITEM(result, 3, PyLong_FromPid(si->si_pid));
PyStructSequence_SET_ITEM(result, 4, PyLong_FromLong((long)(si->si_uid)));
PyStructSequence_SET_ITEM(result, 5,
PyLong_FromLong((long)(si->si_status)));
PyStructSequence_SET_ITEM(result, 6, PyLong_FromLong(si->si_band));
if (PyErr_Occurred()) {
Py_DECREF(result);
return NULL;
}
return result;
}
#endif
#ifdef HAVE_SIGWAITINFO
static PyObject *
signal_sigwaitinfo(PyObject *self, PyObject *args)
{
PyObject *signals;
sigset_t set;
siginfo_t si;
int err;
if (!PyArg_ParseTuple(args, "O:sigwaitinfo", &signals))
return NULL;
if (iterable_to_sigset(signals, &set))
return NULL;
Py_BEGIN_ALLOW_THREADS
err = sigwaitinfo(&set, &si);
Py_END_ALLOW_THREADS
if (err == -1)
return PyErr_SetFromErrno(PyExc_OSError);
return fill_siginfo(&si);
}
PyDoc_STRVAR(signal_sigwaitinfo_doc,
"sigwaitinfo(sigset) -> struct_siginfo\n\
\n\
Wait synchronously for a signal until one of the signals in *sigset* is\n\
delivered.\n\
Returns a struct_siginfo containing information about the signal.");
#endif /* #ifdef HAVE_SIGWAITINFO */
#ifdef HAVE_SIGTIMEDWAIT
static PyObject *
signal_sigtimedwait(PyObject *self, PyObject *args)
{
PyObject *signals, *timeout;
struct timespec buf;
sigset_t set;
siginfo_t si;
int err;
if (!PyArg_ParseTuple(args, "OO:sigtimedwait",
&signals, &timeout))
return NULL;
if (_PyTime_ObjectToTimespec(timeout, &buf.tv_sec, &buf.tv_nsec) == -1)
return NULL;
if (buf.tv_sec < 0 || buf.tv_nsec < 0) {
PyErr_SetString(PyExc_ValueError, "timeout must be non-negative");
return NULL;
}
if (iterable_to_sigset(signals, &set))
return NULL;
Py_BEGIN_ALLOW_THREADS
err = sigtimedwait(&set, &si, &buf);
Py_END_ALLOW_THREADS
if (err == -1) {
if (errno == EAGAIN)
Py_RETURN_NONE;
else
return PyErr_SetFromErrno(PyExc_OSError);
}
return fill_siginfo(&si);
}
PyDoc_STRVAR(signal_sigtimedwait_doc,
"sigtimedwait(sigset, (timeout_sec, timeout_nsec)) -> struct_siginfo\n\
\n\
Like sigwaitinfo(), but with a timeout specified as a tuple of (seconds,\n\
nanoseconds).");
#endif /* #ifdef HAVE_SIGTIMEDWAIT */
#if defined(HAVE_PTHREAD_KILL) && defined(WITH_THREAD)
static PyObject *
signal_pthread_kill(PyObject *self, PyObject *args)
{
long tid;
int signum;
int err;
if (!PyArg_ParseTuple(args, "li:pthread_kill", &tid, &signum))
return NULL;
err = pthread_kill((pthread_t)tid, signum);
if (err != 0) {
errno = err;
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
/* the signal may have been send to the current thread */
if (PyErr_CheckSignals())
return NULL;
Py_RETURN_NONE;
}
PyDoc_STRVAR(signal_pthread_kill_doc,
"pthread_kill(thread_id, signum)\n\
\n\
Send a signal to a thread.");
#endif /* #if defined(HAVE_PTHREAD_KILL) && defined(WITH_THREAD) */
/* List of functions defined in the module */
static PyMethodDef signal_methods[] = {
#ifdef HAVE_ALARM
{"alarm", signal_alarm, METH_VARARGS, alarm_doc},
#endif
#ifdef HAVE_SETITIMER
{"setitimer", signal_setitimer, METH_VARARGS, setitimer_doc},
#endif
#ifdef HAVE_GETITIMER
{"getitimer", signal_getitimer, METH_VARARGS, getitimer_doc},
1995-03-10 11:13:48 -04:00
#endif
{"signal", signal_signal, METH_VARARGS, signal_doc},
{"getsignal", signal_getsignal, METH_VARARGS, getsignal_doc},
{"set_wakeup_fd", signal_set_wakeup_fd, METH_VARARGS, set_wakeup_fd_doc},
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900,60902-60906,60908,60911-60917,60919-60920,60922,60926,60929-60931,60933-60935,60937,60939-60941,60943-60954,60959-60961,60963-60964,60966-60967,60971,60977,60979-60989 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60980 | georg.brandl | 2008-02-23 16:02:28 +0100 (Sat, 23 Feb 2008) | 2 lines #1492: allow overriding BaseHTTPServer's content type for error messages. ........ r60982 | georg.brandl | 2008-02-23 16:06:25 +0100 (Sat, 23 Feb 2008) | 2 lines #2165: fix test_logging failure on some machines. ........ r60983 | facundo.batista | 2008-02-23 16:07:35 +0100 (Sat, 23 Feb 2008) | 6 lines Issue 1089358. Adds the siginterrupt() function, that is just a wrapper around the system call with the same name. Also added test cases, doc changes and NEWS entry. Thanks Jason and Ralf Schmitt. ........ r60984 | georg.brandl | 2008-02-23 16:11:18 +0100 (Sat, 23 Feb 2008) | 2 lines #2067: file.__exit__() now calls subclasses' close() method. ........ r60985 | georg.brandl | 2008-02-23 16:19:54 +0100 (Sat, 23 Feb 2008) | 2 lines More difflib examples. Written for GHOP by Josip Dzolonga. ........ r60987 | andrew.kuchling | 2008-02-23 16:41:51 +0100 (Sat, 23 Feb 2008) | 1 line #2072: correct documentation for .rpc_paths ........ r60988 | georg.brandl | 2008-02-23 16:43:48 +0100 (Sat, 23 Feb 2008) | 2 lines #2161: Fix opcode name. ........ r60989 | andrew.kuchling | 2008-02-23 16:49:35 +0100 (Sat, 23 Feb 2008) | 2 lines #1119331: ncurses will just call exit() if the terminal name isn't found. Call setupterm() first so that we get a Python exception instead of just existing. ........
2008-02-23 12:23:06 -04:00
#ifdef HAVE_SIGINTERRUPT
{"siginterrupt", signal_siginterrupt, METH_VARARGS, siginterrupt_doc},
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900,60902-60906,60908,60911-60917,60919-60920,60922,60926,60929-60931,60933-60935,60937,60939-60941,60943-60954,60959-60961,60963-60964,60966-60967,60971,60977,60979-60989 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60980 | georg.brandl | 2008-02-23 16:02:28 +0100 (Sat, 23 Feb 2008) | 2 lines #1492: allow overriding BaseHTTPServer's content type for error messages. ........ r60982 | georg.brandl | 2008-02-23 16:06:25 +0100 (Sat, 23 Feb 2008) | 2 lines #2165: fix test_logging failure on some machines. ........ r60983 | facundo.batista | 2008-02-23 16:07:35 +0100 (Sat, 23 Feb 2008) | 6 lines Issue 1089358. Adds the siginterrupt() function, that is just a wrapper around the system call with the same name. Also added test cases, doc changes and NEWS entry. Thanks Jason and Ralf Schmitt. ........ r60984 | georg.brandl | 2008-02-23 16:11:18 +0100 (Sat, 23 Feb 2008) | 2 lines #2067: file.__exit__() now calls subclasses' close() method. ........ r60985 | georg.brandl | 2008-02-23 16:19:54 +0100 (Sat, 23 Feb 2008) | 2 lines More difflib examples. Written for GHOP by Josip Dzolonga. ........ r60987 | andrew.kuchling | 2008-02-23 16:41:51 +0100 (Sat, 23 Feb 2008) | 1 line #2072: correct documentation for .rpc_paths ........ r60988 | georg.brandl | 2008-02-23 16:43:48 +0100 (Sat, 23 Feb 2008) | 2 lines #2161: Fix opcode name. ........ r60989 | andrew.kuchling | 2008-02-23 16:49:35 +0100 (Sat, 23 Feb 2008) | 2 lines #1119331: ncurses will just call exit() if the terminal name isn't found. Call setupterm() first so that we get a Python exception instead of just existing. ........
2008-02-23 12:23:06 -04:00
#endif
#ifdef HAVE_PAUSE
{"pause", (PyCFunction)signal_pause,
METH_NOARGS, pause_doc},
1995-03-10 11:13:48 -04:00
#endif
{"default_int_handler", signal_default_int_handler,
METH_VARARGS, default_int_handler_doc},
#if defined(HAVE_PTHREAD_KILL) && defined(WITH_THREAD)
{"pthread_kill", (PyCFunction)signal_pthread_kill,
METH_VARARGS, signal_pthread_kill_doc},
#endif
#ifdef PYPTHREAD_SIGMASK
{"pthread_sigmask", (PyCFunction)signal_pthread_sigmask,
METH_VARARGS, signal_pthread_sigmask_doc},
#endif
#ifdef HAVE_SIGPENDING
{"sigpending", (PyCFunction)signal_sigpending,
METH_NOARGS, signal_sigpending_doc},
#endif
#ifdef HAVE_SIGWAIT
{"sigwait", (PyCFunction)signal_sigwait,
METH_VARARGS, signal_sigwait_doc},
#endif
#ifdef HAVE_SIGWAITINFO
{"sigwaitinfo", (PyCFunction)signal_sigwaitinfo,
METH_VARARGS, signal_sigwaitinfo_doc},
#endif
#ifdef HAVE_SIGTIMEDWAIT
{"sigtimedwait", (PyCFunction)signal_sigtimedwait,
METH_VARARGS, signal_sigtimedwait_doc},
#endif
{NULL, NULL} /* sentinel */
};
2002-06-13 17:33:02 -03:00
PyDoc_STRVAR(module_doc,
1998-06-28 13:54:49 -03:00
"This module provides mechanisms to use signal handlers in Python.\n\
\n\
Functions:\n\
\n\
alarm() -- cause SIGALRM after a specified time [Unix only]\n\
setitimer() -- cause a signal (described below) after a specified\n\
float time and the timer may restart then [Unix only]\n\
getitimer() -- get current value of timer [Unix only]\n\
1998-06-28 13:54:49 -03:00
signal() -- set the action for a given signal\n\
getsignal() -- get the signal action for a given signal\n\
pause() -- wait until a signal arrives [Unix only]\n\
default_int_handler() -- default SIGINT handler\n\
\n\
signal constants:\n\
1998-06-28 13:54:49 -03:00
SIG_DFL -- used to refer to the system default handler\n\
SIG_IGN -- used to ignore the signal\n\
NSIG -- number of defined signals\n\
SIGINT, SIGTERM, etc. -- signal numbers\n\
\n\
itimer constants:\n\
ITIMER_REAL -- decrements in real time, and delivers SIGALRM upon\n\
expiration\n\
ITIMER_VIRTUAL -- decrements only when the process is executing,\n\
and delivers SIGVTALRM upon expiration\n\
ITIMER_PROF -- decrements both when the process is executing and\n\
when the system is executing on behalf of the process.\n\
Coupled with ITIMER_VIRTUAL, this timer is usually\n\
used to profile the time spent by the application\n\
in user and kernel space. SIGPROF is delivered upon\n\
expiration.\n\
\n\n\
1998-06-28 13:54:49 -03:00
*** IMPORTANT NOTICE ***\n\
A signal handler function is called with two arguments:\n\
2002-06-13 17:33:02 -03:00
the first is the signal number, the second is the interrupted stack frame.");
1998-06-28 13:54:49 -03:00
static struct PyModuleDef signalmodule = {
PyModuleDef_HEAD_INIT,
"signal",
module_doc,
-1,
signal_methods,
NULL,
NULL,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit_signal(void)
{
PyObject *m, *d, *x;
int i;
#ifdef WITH_THREAD
main_thread = PyThread_get_thread_ident();
main_pid = getpid();
#endif
/* Create the module and add the functions */
m = PyModule_Create(&signalmodule);
if (m == NULL)
return NULL;
#if defined(HAVE_SIGWAITINFO) || defined(HAVE_SIGTIMEDWAIT)
if (!initialized)
PyStructSequence_InitType(&SiginfoType, &struct_siginfo_desc);
Py_INCREF((PyObject*) &SiginfoType);
PyModule_AddObject(m, "struct_siginfo", (PyObject*) &SiginfoType);
initialized = 1;
#endif
/* Add some symbolic constants to the module */
d = PyModule_GetDict(m);
x = DefaultHandler = PyLong_FromVoidPtr((void *)SIG_DFL);
if (!x || PyDict_SetItemString(d, "SIG_DFL", x) < 0)
goto finally;
x = IgnoreHandler = PyLong_FromVoidPtr((void *)SIG_IGN);
if (!x || PyDict_SetItemString(d, "SIG_IGN", x) < 0)
goto finally;
x = PyLong_FromLong((long)NSIG);
if (!x || PyDict_SetItemString(d, "NSIG", x) < 0)
goto finally;
Py_DECREF(x);
#ifdef SIG_BLOCK
if (PyModule_AddIntMacro(m, SIG_BLOCK))
goto finally;
#endif
#ifdef SIG_UNBLOCK
if (PyModule_AddIntMacro(m, SIG_UNBLOCK))
goto finally;
#endif
#ifdef SIG_SETMASK
if (PyModule_AddIntMacro(m, SIG_SETMASK))
goto finally;
#endif
x = IntHandler = PyDict_GetItemString(d, "default_int_handler");
if (!x)
goto finally;
Py_INCREF(IntHandler);
Handlers[0].tripped = 0;
for (i = 1; i < NSIG; i++) {
void (*t)(int);
t = PyOS_getsig(i);
Handlers[i].tripped = 0;
if (t == SIG_DFL)
Handlers[i].func = DefaultHandler;
else if (t == SIG_IGN)
Handlers[i].func = IgnoreHandler;
else
Handlers[i].func = Py_None; /* None of our business */
Py_INCREF(Handlers[i].func);
}
if (Handlers[SIGINT].func == DefaultHandler) {
/* Install default int handler */
Py_INCREF(IntHandler);
Py_DECREF(Handlers[SIGINT].func);
Handlers[SIGINT].func = IntHandler;
old_siginthandler = PyOS_setsig(SIGINT, signal_handler);
}
#ifdef SIGHUP
x = PyLong_FromLong(SIGHUP);
PyDict_SetItemString(d, "SIGHUP", x);
Py_XDECREF(x);
#endif
#ifdef SIGINT
x = PyLong_FromLong(SIGINT);
PyDict_SetItemString(d, "SIGINT", x);
Py_XDECREF(x);
#endif
#ifdef SIGBREAK
x = PyLong_FromLong(SIGBREAK);
PyDict_SetItemString(d, "SIGBREAK", x);
Py_XDECREF(x);
#endif
#ifdef SIGQUIT
x = PyLong_FromLong(SIGQUIT);
PyDict_SetItemString(d, "SIGQUIT", x);
Py_XDECREF(x);
#endif
#ifdef SIGILL
x = PyLong_FromLong(SIGILL);
PyDict_SetItemString(d, "SIGILL", x);
Py_XDECREF(x);
#endif
#ifdef SIGTRAP
x = PyLong_FromLong(SIGTRAP);
PyDict_SetItemString(d, "SIGTRAP", x);
Py_XDECREF(x);
#endif
#ifdef SIGIOT
x = PyLong_FromLong(SIGIOT);
PyDict_SetItemString(d, "SIGIOT", x);
Py_XDECREF(x);
#endif
#ifdef SIGABRT
x = PyLong_FromLong(SIGABRT);
PyDict_SetItemString(d, "SIGABRT", x);
Py_XDECREF(x);
#endif
#ifdef SIGEMT
x = PyLong_FromLong(SIGEMT);
PyDict_SetItemString(d, "SIGEMT", x);
Py_XDECREF(x);
#endif
#ifdef SIGFPE
x = PyLong_FromLong(SIGFPE);
PyDict_SetItemString(d, "SIGFPE", x);
Py_XDECREF(x);
#endif
#ifdef SIGKILL
x = PyLong_FromLong(SIGKILL);
PyDict_SetItemString(d, "SIGKILL", x);
Py_XDECREF(x);
#endif
#ifdef SIGBUS
x = PyLong_FromLong(SIGBUS);
PyDict_SetItemString(d, "SIGBUS", x);
Py_XDECREF(x);
#endif
#ifdef SIGSEGV
x = PyLong_FromLong(SIGSEGV);
PyDict_SetItemString(d, "SIGSEGV", x);
Py_XDECREF(x);
#endif
#ifdef SIGSYS
x = PyLong_FromLong(SIGSYS);
PyDict_SetItemString(d, "SIGSYS", x);
Py_XDECREF(x);
#endif
#ifdef SIGPIPE
x = PyLong_FromLong(SIGPIPE);
PyDict_SetItemString(d, "SIGPIPE", x);
Py_XDECREF(x);
#endif
#ifdef SIGALRM
x = PyLong_FromLong(SIGALRM);
PyDict_SetItemString(d, "SIGALRM", x);
Py_XDECREF(x);
#endif
#ifdef SIGTERM
x = PyLong_FromLong(SIGTERM);
PyDict_SetItemString(d, "SIGTERM", x);
Py_XDECREF(x);
#endif
#ifdef SIGUSR1
x = PyLong_FromLong(SIGUSR1);
PyDict_SetItemString(d, "SIGUSR1", x);
Py_XDECREF(x);
#endif
#ifdef SIGUSR2
x = PyLong_FromLong(SIGUSR2);
PyDict_SetItemString(d, "SIGUSR2", x);
Py_XDECREF(x);
#endif
#ifdef SIGCLD
x = PyLong_FromLong(SIGCLD);
PyDict_SetItemString(d, "SIGCLD", x);
Py_XDECREF(x);
#endif
#ifdef SIGCHLD
x = PyLong_FromLong(SIGCHLD);
PyDict_SetItemString(d, "SIGCHLD", x);
Py_XDECREF(x);
#endif
#ifdef SIGPWR
x = PyLong_FromLong(SIGPWR);
PyDict_SetItemString(d, "SIGPWR", x);
Py_XDECREF(x);
#endif
#ifdef SIGIO
x = PyLong_FromLong(SIGIO);
PyDict_SetItemString(d, "SIGIO", x);
Py_XDECREF(x);
#endif
#ifdef SIGURG
x = PyLong_FromLong(SIGURG);
PyDict_SetItemString(d, "SIGURG", x);
Py_XDECREF(x);
#endif
#ifdef SIGWINCH
x = PyLong_FromLong(SIGWINCH);
PyDict_SetItemString(d, "SIGWINCH", x);
Py_XDECREF(x);
#endif
#ifdef SIGPOLL
x = PyLong_FromLong(SIGPOLL);
PyDict_SetItemString(d, "SIGPOLL", x);
Py_XDECREF(x);
#endif
#ifdef SIGSTOP
x = PyLong_FromLong(SIGSTOP);
PyDict_SetItemString(d, "SIGSTOP", x);
Py_XDECREF(x);
#endif
#ifdef SIGTSTP
x = PyLong_FromLong(SIGTSTP);
PyDict_SetItemString(d, "SIGTSTP", x);
Py_XDECREF(x);
#endif
#ifdef SIGCONT
x = PyLong_FromLong(SIGCONT);
PyDict_SetItemString(d, "SIGCONT", x);
Py_XDECREF(x);
#endif
#ifdef SIGTTIN
x = PyLong_FromLong(SIGTTIN);
PyDict_SetItemString(d, "SIGTTIN", x);
Py_XDECREF(x);
#endif
#ifdef SIGTTOU
x = PyLong_FromLong(SIGTTOU);
PyDict_SetItemString(d, "SIGTTOU", x);
Py_XDECREF(x);
#endif
#ifdef SIGVTALRM
x = PyLong_FromLong(SIGVTALRM);
PyDict_SetItemString(d, "SIGVTALRM", x);
Py_XDECREF(x);
#endif
#ifdef SIGPROF
x = PyLong_FromLong(SIGPROF);
PyDict_SetItemString(d, "SIGPROF", x);
Py_XDECREF(x);
#endif
#ifdef SIGXCPU
x = PyLong_FromLong(SIGXCPU);
PyDict_SetItemString(d, "SIGXCPU", x);
Py_XDECREF(x);
#endif
#ifdef SIGXFSZ
x = PyLong_FromLong(SIGXFSZ);
PyDict_SetItemString(d, "SIGXFSZ", x);
Py_XDECREF(x);
2002-01-12 07:43:25 -04:00
#endif
#ifdef SIGRTMIN
x = PyLong_FromLong(SIGRTMIN);
PyDict_SetItemString(d, "SIGRTMIN", x);
Py_XDECREF(x);
#endif
#ifdef SIGRTMAX
x = PyLong_FromLong(SIGRTMAX);
PyDict_SetItemString(d, "SIGRTMAX", x);
Py_XDECREF(x);
#endif
2002-01-12 07:43:25 -04:00
#ifdef SIGINFO
x = PyLong_FromLong(SIGINFO);
PyDict_SetItemString(d, "SIGINFO", x);
Py_XDECREF(x);
#endif
#ifdef ITIMER_REAL
x = PyLong_FromLong(ITIMER_REAL);
PyDict_SetItemString(d, "ITIMER_REAL", x);
Py_DECREF(x);
#endif
#ifdef ITIMER_VIRTUAL
x = PyLong_FromLong(ITIMER_VIRTUAL);
PyDict_SetItemString(d, "ITIMER_VIRTUAL", x);
Py_DECREF(x);
#endif
#ifdef ITIMER_PROF
x = PyLong_FromLong(ITIMER_PROF);
PyDict_SetItemString(d, "ITIMER_PROF", x);
Py_DECREF(x);
#endif
#if defined (HAVE_SETITIMER) || defined (HAVE_GETITIMER)
ItimerError = PyErr_NewException("signal.ItimerError",
PyExc_IOError, NULL);
if (ItimerError != NULL)
PyDict_SetItemString(d, "ItimerError", ItimerError);
#endif
#ifdef CTRL_C_EVENT
x = PyLong_FromLong(CTRL_C_EVENT);
PyDict_SetItemString(d, "CTRL_C_EVENT", x);
Py_DECREF(x);
#endif
#ifdef CTRL_BREAK_EVENT
x = PyLong_FromLong(CTRL_BREAK_EVENT);
PyDict_SetItemString(d, "CTRL_BREAK_EVENT", x);
Py_DECREF(x);
#endif
#ifdef MS_WINDOWS
/* Create manual-reset event, initially unset */
sigint_event = CreateEvent(NULL, TRUE, FALSE, FALSE);
#endif
if (PyErr_Occurred()) {
Py_DECREF(m);
m = NULL;
}
finally:
return m;
}
static void
finisignal(void)
{
int i;
PyObject *func;
PyOS_setsig(SIGINT, old_siginthandler);
old_siginthandler = SIG_DFL;
for (i = 1; i < NSIG; i++) {
func = Handlers[i].func;
Handlers[i].tripped = 0;
Handlers[i].func = NULL;
if (i != SIGINT && func != NULL && func != Py_None &&
func != DefaultHandler && func != IgnoreHandler)
PyOS_setsig(i, SIG_DFL);
Py_XDECREF(func);
}
Py_XDECREF(IntHandler);
IntHandler = NULL;
Py_XDECREF(DefaultHandler);
DefaultHandler = NULL;
Py_XDECREF(IgnoreHandler);
IgnoreHandler = NULL;
}
/* Declared in pyerrors.h */
int
PyErr_CheckSignals(void)
{
int i;
PyObject *f;
if (!is_tripped)
return 0;
Merged revisions 59450-59464 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r59455 | guido.van.rossum | 2007-12-10 21:42:53 +0100 (Mon, 10 Dec 2007) | 2 lines Remove a 2.2-ism. ........ r59459 | christian.heimes | 2007-12-10 23:28:56 +0100 (Mon, 10 Dec 2007) | 4 lines Backport of r59456:59458 from py3k to trunk Issue #1580: New free format floating point representation based on "Floating-Point Printer Sample Code", by Robert G. Burger. For example repr(11./5) now returns '2.2' instead of '2.2000000000000002'. Thanks to noam for the patch! I had to modify doubledigits.c slightly to support X64 and IA64 machines on Windows. I also added the new file to the three project files. ........ r59460 | guido.van.rossum | 2007-12-11 00:00:12 +0100 (Tue, 11 Dec 2007) | 4 lines Patch #1643738 by Ulisses Furquim -- make the is_tripped variable in signalmodule.c more robust. Includes Martin von Loewis's suggestion to set is_tripped after .tripped. ........ r59463 | kurt.kaiser | 2007-12-11 01:04:57 +0100 (Tue, 11 Dec 2007) | 2 lines format_paragraph_event wasn't returning 'break' ........ r59464 | christian.heimes | 2007-12-11 01:54:34 +0100 (Tue, 11 Dec 2007) | 3 lines The new float repr causes too much trouble and pain. I'm disabling the feature until we have sorted out the issues on all machines. 64bit machines seem to have issues and Guido has reported even worse. Guido: It's pretty bad actually -- repr(1e5) comes out as '1.0'... Ditto for repr(1eN) for most N... Both in 2.6 and in 3.0... ........
2007-12-10 21:06:40 -04:00
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread)
return 0;
#endif
/*
* The is_tripped variable is meant to speed up the calls to
* PyErr_CheckSignals (both directly or via pending calls) when no
* signal has arrived. This variable is set to 1 when a signal arrives
* and it is set to 0 here, when we know some signals arrived. This way
* we can run the registered handlers with no signals blocked.
*
* NOTE: with this approach we can have a situation where is_tripped is
* 1 but we have no more signals to handle (Handlers[i].tripped
* is 0 for every signal i). This won't do us any harm (except
* we're gonna spent some cycles for nothing). This happens when
* we receive a signal i after we zero is_tripped and before we
* check Handlers[i].tripped.
*/
is_tripped = 0;
if (!(f = (PyObject *)PyEval_GetFrame()))
f = Py_None;
for (i = 1; i < NSIG; i++) {
if (Handlers[i].tripped) {
PyObject *result = NULL;
PyObject *arglist = Py_BuildValue("(iO)", i, f);
Handlers[i].tripped = 0;
if (arglist) {
result = PyEval_CallObject(Handlers[i].func,
arglist);
Py_DECREF(arglist);
}
if (!result)
return -1;
Py_DECREF(result);
}
}
return 0;
}
/* Replacements for intrcheck.c functionality
* Declared in pyerrors.h
*/
void
PyErr_SetInterrupt(void)
{
trip_signal(SIGINT);
}
void
PyOS_InitInterrupts(void)
{
PyObject *m = PyInit_signal();
if (m) {
_PyImport_FixupBuiltin(m, "signal");
Py_DECREF(m);
}
}
void
PyOS_FiniInterrupts(void)
{
finisignal();
}
int
PyOS_InterruptOccurred(void)
{
if (Handlers[SIGINT].tripped) {
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread)
return 0;
#endif
Handlers[SIGINT].tripped = 0;
return 1;
}
return 0;
}
static void
_clear_pending_signals(void)
{
int i;
if (!is_tripped)
return;
is_tripped = 0;
for (i = 1; i < NSIG; ++i) {
Handlers[i].tripped = 0;
}
}
void
PyOS_AfterFork(void)
{
/* Clear the signal flags after forking so that they aren't handled
* in both processes if they came in just before the fork() but before
* the interpreter had an opportunity to call the handlers. issue9535. */
_clear_pending_signals();
#ifdef WITH_THREAD
/* PyThread_ReInitTLS() must be called early, to make sure that the TLS API
* can be called safely. */
PyThread_ReInitTLS();
_PyGILState_Reinit();
PyEval_ReInitThreads();
main_thread = PyThread_get_thread_ident();
main_pid = getpid();
_PyImport_ReInitLock();
#endif
}
int
_PyOS_IsMainThread(void)
{
#ifdef WITH_THREAD
return PyThread_get_thread_ident() == main_thread;
#else
return 1;
#endif
}
#ifdef MS_WINDOWS
void *_PyOS_SigintEvent(void)
{
/* Returns a manual-reset event which gets tripped whenever
SIGINT is received.
Python.h does not include windows.h so we do cannot use HANDLE
as the return type of this function. We use void* instead. */
return sigint_event;
}
#endif