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threads/wiiu: implement SDL_CondWaitTimeout

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This commit is contained in:
rw-r-r-0644
2018-09-21 20:21:33 +02:00
committed by Ash Logan
parent 30b0133f83
commit 189846753c
1 changed files with 36 additions and 1 deletions
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37
src/thread/wiiu/SDL_syscond.c
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@@ -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 */