Mercurial > sdl-ios-xcode
view docs/man3/SDL_CreateThread.3 @ 3068:b21348d47cab
Fixed bug #633
Description From Michael Stone 2008-09-25 19:27:29 (-) [reply]
To determine whether a pid is occupied with the kill(pid, 0) idiom, you have to
test
#include <signal.h>
#include <errno.h>
kill(pid, 0) < 0 && errno == ESRCH
not just
#include <signal.h>
kill(pid, 0) < 0
otherwise you get incorrect results when pid is running as a different user
(causing kill(pid, 0) to return -1 + EPERM).
src/audio/alsa/SDL_alsa_audio.c is certainly affected by this bug in both
1.2.13 and 1.3-trunk. It probably occurs in other places as well.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 17 Feb 2009 05:17:51 +0000 |
| parents | 546f7c1eb755 |
| children | 1238da4a7112 |
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.TH "SDL_CreateThread" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" .SH "NAME" SDL_CreateThread \- Creates a new thread of execution that shares its parent\&'s properties\&. .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" #include "SDL_thread\&.h" .sp \fBSDL_Thread *\fBSDL_CreateThread\fP\fR(\fBint (*fn)(void *), void *data\fR); .SH "DESCRIPTION" .PP \fBSDL_CreateThread\fP creates a new thread of execution that shares all of its parent\&'s global memory, signal handlers, file descriptors, etc, and runs the function \fBfn\fR passed the void pointer \fBdata\fR The thread quits when this function returns\&. .SH "SEE ALSO" .PP \fI\fBSDL_KillThread\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00