cpython/Modules/signalmodule.c

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/* Signal module -- many thanks to Lance Ellinghaus */
/* XXX Signals should be recorded per thread, now we have thread state. */
#include "Python.h"
#include "intrcheck.h"
#ifdef MS_WINDOWS
#include <Windows.h>
#ifdef HAVE_PROCESS_H
#include <process.h>
#endif
#endif
#include <signal.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 ........
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#include <sys/stat.h>
#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 ........
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#ifndef SIG_ERR
#define SIG_ERR ((PyOS_sighandler_t)(-1))
#endif
#if defined(PYOS_OS2) && !defined(PYCC_GCC)
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#define NSIG 12
#include <process.h>
#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
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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 */
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#include "pythread.h"
static long main_thread;
static pid_t main_pid;
#endif
static struct {
int tripped;
PyObject *func;
} Handlers[NSIG];
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 ........
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static sig_atomic_t wakeup_fd = -1;
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... ........
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/* 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 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 *
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signal_default_int_handler(PyObject *self, PyObject *args)
{
PyErr_SetNone(PyExc_KeyboardInterrupt);
return NULL;
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}
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PyDoc_STRVAR(default_int_handler_doc,
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"default_int_handler(...)\n\
\n\
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The default handler for SIGINT installed by Python.\n\
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It raises KeyboardInterrupt.");
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static int
checksignals_witharg(void * unused)
{
return PyErr_CheckSignals();
}
static void
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signal_handler(int sig_num)
{
#ifdef WITH_THREAD
#ifdef WITH_PTH
if (PyThread_get_thread_ident() != main_thread) {
pth_raise(*(pth_t *) main_thread, sig_num);
return;
}
#endif
/* See NOTES section above */
if (getpid() == main_pid) {
#endif
Handlers[sig_num].tripped = 1;
/* Set is_tripped after setting .tripped, as it gets
cleared in PyErr_CheckSignals() before .tripped. */
is_tripped = 1;
Py_AddPendingCall(checksignals_witharg, NULL);
if (wakeup_fd != -1)
write(wakeup_fd, "\0", 1);
#ifdef WITH_THREAD
}
#endif
#ifdef SIGCHLD
if (sig_num == 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... */
return;
}
#endif
#ifndef HAVE_SIGACTION
/* 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
}
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#ifdef HAVE_ALARM
static PyObject *
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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));
}
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PyDoc_STRVAR(alarm_doc,
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"alarm(seconds)\n\
\n\
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Arrange for SIGALRM to arrive after the given number of seconds.");
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#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;
}
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PyDoc_STRVAR(pause_doc,
"pause()\n\
\n\
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Wait until a signal arrives.");
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#endif
static PyObject *
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signal_signal(PyObject *self, PyObject *args)
{
PyObject *obj;
int sig_num;
PyObject *old_handler;
void (*func)(int);
#ifdef MS_WINDOWS
int cur_sig, num_valid_sigs = 6;
static int valid_sigs[] = {SIGABRT, SIGFPE, SIGILL, SIGINT,
SIGSEGV, SIGTERM};
BOOL valid_sig = FALSE;
#endif
if (!PyArg_ParseTuple(args, "iO:signal", &sig_num, &obj))
return NULL;
#ifdef MS_WINDOWS
/* Validate that sig_num is one of the allowable signals */
for (cur_sig = 0; cur_sig < num_valid_sigs; cur_sig++)
valid_sig |= (sig_num == valid_sigs[cur_sig]);
if (!valid_sig) {
PyErr_SetString(PyExc_ValueError, "signal number out of range");
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_RuntimeError);
return NULL;
}
old_handler = Handlers[sig_num].func;
Handlers[sig_num].tripped = 0;
Py_INCREF(obj);
Handlers[sig_num].func = obj;
return old_handler;
}
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PyDoc_STRVAR(signal_doc,
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"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\
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the first is the signal number, the second is the interrupted stack frame.");
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static PyObject *
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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;
}
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PyDoc_STRVAR(getsignal_doc,
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"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\
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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. ........
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#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_RuntimeError);
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
/* 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},
{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;
/* 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);
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
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)
{
is_tripped = 1;
Handlers[SIGINT].tripped = 1;
Py_AddPendingCall((int (*)(void *))PyErr_CheckSignals, NULL);
}
void
PyOS_InitInterrupts(void)
{
PyObject *m = PyInit_signal();
if (m) {
_PyImport_FixupExtension(m, "signal", "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;
}
void
PyOS_AfterFork(void)
{
#ifdef WITH_THREAD
PyEval_ReInitThreads();
main_thread = PyThread_get_thread_ident();
main_pid = getpid();
_PyImport_ReInitLock();
PyThread_ReInitTLS();
#endif
}