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SDL_systhread.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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#include "SDL_config.h"
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/*
* GNU pth threads
*
* Patrice Mandin
*/
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#include <pth.h>
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#include <signal.h>
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#include "SDL_thread.h"
#include "../SDL_thread_c.h"
#include "../SDL_systhread.h"
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/* List of signals to mask in the subthreads */
static int sig_list[] = {
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SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCHLD, SIGWINCH,
SIGVTALRM, SIGPROF, 0
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static void *
RunThread(void *data)
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SDL_RunThread(data);
pth_exit((void *) 0);
return ((void *) 0); /* Prevent compiler warning */
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int
SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
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pth_attr_t type;
/* Create a new attribute */
type = pth_attr_new();
if (type == NULL) {
SDL_SetError("Couldn't initialize pth attributes");
return (-1);
}
pth_attr_set(type, PTH_ATTR_JOINABLE, TRUE);
/* Create the thread and go! */
thread->handle = pth_spawn(type, RunThread, args);
if (thread->handle == NULL) {
SDL_SetError("Not enough resources to create thread");
return (-1);
}
return (0);
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void
SDL_SYS_SetupThread(void)
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int i;
sigset_t mask;
int oldstate;
/* Mask asynchronous signals for this thread */
sigemptyset(&mask);
for (i = 0; sig_list[i]; ++i) {
sigaddset(&mask, sig_list[i]);
}
pth_sigmask(SIG_BLOCK, &mask, 0);
/* Allow ourselves to be asynchronously cancelled */
pth_cancel_state(PTH_CANCEL_ASYNCHRONOUS, &oldstate);
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}
/* WARNING: This may not work for systems with 64-bit pid_t */
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Uint32
SDL_ThreadID(void)
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return ((Uint32) pth_self());
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void
SDL_SYS_WaitThread(SDL_Thread * thread)
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pth_join(thread->handle, NULL);
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/* vi: set ts=4 sw=4 expandtab: */