From 189846753c63e12c1fd5bdf1e56fb2afcf414a45 Mon Sep 17 00:00:00 2001
From: rw-r-r-0644 <r.r.qwertyuiop.r.r@gmail.com>
Date: Fri, 21 Sep 2018 20:21:33 +0200
Subject: [PATCH] threads/wiiu: implement SDL_CondWaitTimeout

---
 src/thread/wiiu/SDL_syscond.c | 37 ++++++++++++++++++++++++++++++++++-
 1 file changed, 36 insertions(+), 1 deletion(-)

diff --git a/src/thread/wiiu/SDL_syscond.c b/src/thread/wiiu/SDL_syscond.c
index acb94532e..687f1603a 100644
--- a/src/thread/wiiu/SDL_syscond.c
+++ b/src/thread/wiiu/SDL_syscond.c
@@ -24,8 +24,17 @@
 
 #include "SDL_thread.h"
 
+#include <stdbool.h>
+#include <coreinit/alarm.h>
+#include <coreinit/mutex.h>
 #include <coreinit/condition.h>
 
+typedef struct
+{
+   OSCondition *cond;
+   bool timed_out;
+} WIIU_CondWaitTimeoutData;
+
 /* Create a condition variable */
 SDL_cond *
 SDL_CreateCond(void)
@@ -91,10 +100,36 @@ Thread B:
     SDL_UnlockMutex(lock);
  */
 
+static void
+SDL_CondWaitTimeoutCallback(OSAlarm *alarm, OSContext *context)
+{
+   WIIU_CondWaitTimeoutData *data = (WIIU_CondWaitTimeoutData *)OSGetAlarmUserData(alarm);
+   data->timed_out = true;
+   OSSignalCond(data->cond);
+}
+
 int
 SDL_CondWaitTimeout(SDL_cond * cond, SDL_mutex * mutex, Uint32 ms)
 {
-    return -1;
+	WIIU_CondWaitTimeoutData data;
+	data.timed_out = false;
+	data.cond = (OSCondition *)cond;
+
+	// Timeout is zero
+	if (!ms)
+		return SDL_MUTEX_TIMEDOUT;
+
+	// Set an alarm
+	OSAlarm alarm;
+	OSCreateAlarm(&alarm);
+	OSSetAlarmUserData(&alarm, &data);
+	OSSetAlarm(&alarm, OSMillisecondsToTicks(ms), &SDL_CondWaitTimeoutCallback);
+
+	// Wait on the condition
+	OSWaitCond((OSCondition *)cond, (OSMutex *)mutex);
+
+	OSCancelAlarm(&alarm);
+	return data.timed_out ? SDL_MUTEX_TIMEDOUT : 0;
 }
 
 /* Wait on the condition variable forever */