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Merged revisions 59565-59594 via svnmerge from

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svn+ssh://pythondev@svn.python.org/python/trunk

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  r59568 | facundo.batista | 2007-12-19 13:53:01 +0100 (Wed, 19 Dec 2007) | 3 lines


  Some minor cleanups.  Thanks Mark Dickinson.
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  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.
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  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).
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  r59575 | raymond.hettinger | 2007-12-19 23:14:34 +0100 (Wed, 19 Dec 2007) | 1 line

  Bigger range for non-extended opargs.
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  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.
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  r59577 | raymond.hettinger | 2007-12-20 02:25:05 +0100 (Thu, 20 Dec 2007) | 1 line

  Add comments
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  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.
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  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.
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  r59584 | georg.brandl | 2007-12-20 22:03:02 +0100 (Thu, 20 Dec 2007) | 2 lines

  Fix refleak introduced in r59576.
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  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.
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  r59591 | andrew.kuchling | 2007-12-22 18:27:02 +0100 (Sat, 22 Dec 2007) | 1 line

  Add item
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This commit is contained in:
Christian Heimes 2007-12-24 08:52:31 +00:00
parent 81f1130908
commit 5fb7c2ad0b
14 changed files with 307 additions and 54 deletions
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53
Modules/signalmodule.c
View file

@ -12,6 +12,8 @@
#include <signal.h>
#include <sys/stat.h>
#ifndef SIG_ERR
#define SIG_ERR ((PyOS_sighandler_t)(-1))
#endif
@ -75,6 +77,8 @@ static struct {
PyObject *func;
} Handlers[NSIG];
static sig_atomic_t wakeup_fd = -1;
/* Speed up sigcheck() when none tripped */
static volatile sig_atomic_t is_tripped = 0;
@ -128,6 +132,8 @@ signal_handler(int sig_num)
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
@ -267,6 +273,50 @@ None -- if an unknown handler is in effect\n\
anything else -- the callable Python object used as a handler");
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;
#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);
}
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;
}
/* List of functions defined in the module */
static PyMethodDef signal_methods[] = {
#ifdef HAVE_ALARM
@ -274,11 +324,12 @@ static PyMethodDef signal_methods[] = {
#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},
#ifdef HAVE_PAUSE
{"pause", (PyCFunction)signal_pause,
METH_NOARGS,pause_doc},
#endif
{"default_int_handler", signal_default_int_handler,
{"default_int_handler", signal_default_int_handler,
METH_VARARGS, default_int_handler_doc},
{NULL, NULL} /* sentinel */
};