Import SDL release-1.2.15

Change-Id: I505c4aea24325cad475f217db5589814b4c75dbf

1 files changed, 103 insertions, 0 deletions

diff --git a/distrib/sdl-1.2.15/src/thread/pth/SDL_systhread.c b/distrib/sdl-1.2.15/src/thread/pth/SDL_systhread.c
new file mode 100644
index 0000000..bfccaf3
--- /dev/null
+++ b/distrib/sdl-1.2.15/src/thread/pth/SDL_systhread.c
@@ -0,0 +1,103 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2012 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);
+}