/*+
−
    SDL - Simple DirectMedia Layer+
−
    Copyright (C) 1997-2009 Sam Lantinga+
−
+
−
    This library is free software; you can redistribute it and/or+
−
    modify it under the terms of the GNU Lesser General Public+
−
    License as published by the Free Software Foundation; either+
−
    version 2.1 of the License, or (at your option) any later version.+
−
+
−
    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+
−
    Lesser General Public License for more details.+
−
+
−
    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+
−
+
−
    Sam Lantinga+
−
    slouken@libsdl.org+
−
*/+
−
#include "SDL_config.h"+
−
+
−
/*+
−
 *	GNU pth threads+
−
 *+
−
 *	Patrice Mandin+
−
 */+
−
+
−
#include <pth.h>+
−
#include <signal.h>+
−
+
−
#include "SDL_thread.h"+
−
#include "../SDL_thread_c.h"+
−
#include "../SDL_systhread.h"+
−
+
−
/* List of signals to mask in the subthreads */+
−
static int sig_list[] = {+
−
	SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCHLD, SIGWINCH,+
−
	SIGVTALRM, SIGPROF, 0+
−
};+
−
+
−
static void *RunThread(void *data)+
−
{+
−
	SDL_RunThread(data);+
−
	pth_exit((void*)0);+
−
	return((void *)0);		/* Prevent compiler warning */+
−
}+
−
+
−
int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)+
−
{+
−
	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);+
−
}+
−
+
−
void SDL_SYS_SetupThread(void)+
−
{+
−
	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);+
−
}+
−
+
−
/* WARNING:  This may not work for systems with 64-bit pid_t */+
−
Uint32 SDL_ThreadID(void)+
−
{+
−
	return((Uint32)pth_self());+
−
}+
−
+
−
void SDL_SYS_WaitThread(SDL_Thread *thread)+
−
{+
−
	pth_join(thread->handle, NULL);+
−
}+
−
+
−
void SDL_SYS_KillThread(SDL_Thread *thread)+
−
{+
−
	pth_cancel(thread->handle);+
−
	pth_join(thread->handle, NULL);+
−
}+
−