mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-10-21 22:22:48 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Issue #8407: The signal handler writes the signal number as a single byte

Browse source 
instead of a nul byte into the wakeup file descriptor. So it is possible to
wait more than one signal and know which signals were raised.
This commit is contained in:
Victor Stinner 2011-05-08 02:03:15 +02:00
parent b3e7219abf
commit d49b1f14de
5 changed files with 35 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Modules/signalmodule.c
View file

@ -176,6 +176,7 @@ checksignals_witharg(void * unused)
static void
trip_signal(int sig_num)
{
unsigned char byte;
Handlers[sig_num].tripped = 1;
if (is_tripped)
return;
@ -183,8 +184,10 @@ trip_signal(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);
if (wakeup_fd != -1) {
byte = (unsigned char)sig_num;
write(wakeup_fd, &byte, 1);
}
}
static void