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sys/xtimer/xtimer.c: new function xtimer_rmutex_lock_timeout()

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function tries to acquire a mutex within a timeout
This commit is contained in:
JulianHolzwarth 2019-07-12 16:21:16 +02:00
parent dbab3a6075
commit 6d6b93afdc
1 changed files with 15 additions and 0 deletions
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15
sys/xtimer/xtimer.c
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@ -24,6 +24,7 @@
#include "xtimer.h"
#include "mutex.h"
#include "rmutex.h"
#include "thread.h"
#include "irq.h"
#include "div.h"
@ -270,6 +271,20 @@ int xtimer_mutex_lock_timeout(mutex_t *mutex, uint64_t timeout)
return -mt.dequeued;
}
int xtimer_rmutex_lock_timeout(rmutex_t *rmutex, uint64_t timeout)
{
if (rmutex_trylock(rmutex)) {
return 0;
}
if (xtimer_mutex_lock_timeout(&rmutex->mutex, timeout) == 0) {
atomic_store_explicit(&rmutex->owner,
thread_getpid(), memory_order_relaxed);
rmutex->refcount++;
return 0;
}
return -1;
}
#ifdef MODULE_CORE_THREAD_FLAGS
static void _set_timeout_flag_callback(void* arg)
{