--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/thread/pth/SDL_syscond.c	Mon Apr 01 15:35:28 2002 +0000
@@ -0,0 +1,140 @@
+/*
+ *	GNU pth conditions variables
+ *
+ *	Patrice Mandin
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <pth.h>
+
+#include "SDL_error.h"
+#include "SDL_thread.h"
+#include "SDL_syscond_c.h"
+#include "SDL_sysmutex_c.h"
+
+/* Create a condition variable */
+SDL_cond * SDL_CreateCond(void)
+{
+	SDL_cond *cond;
+
+	cond = (SDL_cond *) malloc(sizeof(SDL_cond));
+	if ( cond ) {
+		if ( pth_cond_init(&(cond->condpth_p)) < 0 ) {
+			SDL_SetError("pthread_cond_init() failed");
+			free(cond);
+			cond = NULL;
+		}
+	} else {
+		SDL_OutOfMemory();
+	}
+	return(cond);
+}
+
+/* Destroy a condition variable */
+void SDL_DestroyCond(SDL_cond *cond)
+{
+	if ( cond ) {
+		free(cond);
+	}
+}
+
+/* Restart one of the threads that are waiting on the condition variable */
+int SDL_CondSignal(SDL_cond *cond)
+{
+	int retval;
+
+	if ( ! cond ) {
+		SDL_SetError("Passed a NULL condition variable");
+		return -1;
+	}
+
+	retval = 0;
+	if ( pth_cond_notify(&(cond->condpth_p), FALSE) != 0 ) {
+		SDL_SetError("pth_cond_notify() failed");
+		retval = -1;
+	}
+	return retval;
+}
+
+/* Restart all threads that are waiting on the condition variable */
+int SDL_CondBroadcast(SDL_cond *cond)
+{
+	int retval;
+
+	if ( ! cond ) {
+		SDL_SetError("Passed a NULL condition variable");
+		return -1;
+	}
+
+	retval = 0;
+	if ( pth_cond_notify(&(cond->condpth_p), TRUE) != 0 ) {
+		SDL_SetError("pth_cond_notify() failed");
+		retval = -1;
+	}
+	return retval;
+}
+
+/* Wait on the condition variable for at most 'ms' milliseconds.
+   The mutex must be locked before entering this function!
+   The mutex is unlocked during the wait, and locked again after the wait.
+
+Typical use:
+
+Thread A:
+	SDL_LockMutex(lock);
+	while ( ! condition ) {
+		SDL_CondWait(cond);
+	}
+	SDL_UnlockMutex(lock);
+
+Thread B:
+	SDL_LockMutex(lock);
+	...
+	condition = true;
+	...
+	SDL_UnlockMutex(lock);
+ */
+int SDL_CondWaitTimeout(SDL_cond *cond, SDL_mutex *mutex, Uint32 ms)
+{
+	int retval;
+	pth_event_t ev;
+	int sec;
+
+	if ( ! cond ) {
+		SDL_SetError("Passed a NULL condition variable");
+		return -1;
+	}
+
+	retval = 0;
+
+	sec = ms/1000;
+	ev = pth_event(PTH_EVENT_TIME, pth_timeout(sec,(ms-sec*1000)*1000));
+
+	if ( pth_cond_await(&(cond->condpth_p), &(mutex->mutexpth_p), ev) != 0 ) {
+		SDL_SetError("pth_cond_await() failed");
+		retval = -1;
+	}
+
+    pth_event_free(ev, PTH_FREE_ALL);
+
+	return retval;
+}
+
+/* Wait on the condition variable forever */
+int SDL_CondWait(SDL_cond *cond, SDL_mutex *mutex)
+{
+	int retval;
+
+	if ( ! cond ) {
+		SDL_SetError("Passed a NULL condition variable");
+		return -1;
+	}
+
+	retval = 0;
+	if ( pth_cond_await(&(cond->condpth_p), &(mutex->mutexpth_p), NULL) != 0 ) {
+		SDL_SetError("pth_cond_await() failed");
+		retval = -1;
+	}
+	return retval;
+}