85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
#include "typesdef.h"
|
|
#include "errno.h"
|
|
#include "list.h"
|
|
#include "osal/string.h"
|
|
#include "osal/semaphore.h"
|
|
#include "osal/mutex.h"
|
|
#include "osal/condv.h"
|
|
|
|
#ifdef CSKY_OS
|
|
#include "csi_kernel.h"
|
|
#include <k_api.h>
|
|
|
|
#define CONDV_MAGIC (0x3a8d7c1d)
|
|
|
|
int32 os_condv_init(os_condv_t *cond)
|
|
{
|
|
if(cond->magic == CONDV_MAGIC){
|
|
os_printf(KERN_WARNING"condv repeat initialization ????\r\n");
|
|
}
|
|
|
|
cond->sema = csi_kernel_sem_new(65535, 0);
|
|
if (cond->sema) {
|
|
cond->magic = CONDV_MAGIC;
|
|
atomic_set(&cond->waitings, 0);
|
|
}
|
|
return (cond->sema ? RET_OK : RET_ERR);
|
|
}
|
|
|
|
int32 os_condv_broadcast(os_condv_t *cond)
|
|
{
|
|
uint32 i;
|
|
uint32 wait = atomic_read(&cond->waitings);
|
|
|
|
ASSERT(cond && cond->magic == CONDV_MAGIC);
|
|
while (wait > 0) {
|
|
if (wait == atomic_cmpxchg(&cond->waitings, wait, 0)) {
|
|
for (i = 0; i < wait; i++) {
|
|
csi_kernel_sem_post(cond->sema);
|
|
}
|
|
}
|
|
wait = atomic_read(&cond->waitings);
|
|
}
|
|
|
|
return RET_OK;
|
|
}
|
|
|
|
int32 os_condv_signal(os_condv_t *cond)
|
|
{
|
|
uint32 wait = atomic_read(&cond->waitings);
|
|
ASSERT(cond && cond->magic == CONDV_MAGIC);
|
|
while (wait > 0) {
|
|
if (wait == atomic_cmpxchg(&cond->waitings, wait, wait - 1)) {
|
|
csi_kernel_sem_post(cond->sema);
|
|
break;
|
|
}
|
|
wait = atomic_read(&cond->waitings);
|
|
}
|
|
return RET_OK;
|
|
}
|
|
|
|
int32 os_condv_del(os_condv_t *cond)
|
|
{
|
|
ASSERT(cond && cond->magic == CONDV_MAGIC);
|
|
csi_kernel_sem_del(cond->sema);
|
|
cond->sema = NULL;
|
|
cond->magic = 0;
|
|
return RET_OK;
|
|
}
|
|
|
|
int32 os_condv_wait(os_condv_t *cond, os_mutex_t *mutex, uint32 tmo_ms)
|
|
{
|
|
int32 ret;
|
|
ASSERT(cond && cond->magic == CONDV_MAGIC);
|
|
atomic_inc(&cond->waitings);
|
|
os_mutex_unlock(mutex);
|
|
ret = csi_kernel_sem_wait(cond->sema, tmo_ms);
|
|
//os_printf(KERN_NOTICE"condv 0x%x waitings:%d, tmo_ms:%d, ret:%d\r\n", cond, atomic_read(&cond->waitings), tmo_ms, ret);
|
|
os_mutex_lock(mutex, osWaitForever);
|
|
atomic_dec(&cond->waitings);
|
|
return ret ? -ETIMEDOUT : RET_OK;
|
|
}
|
|
|
|
#endif
|
|
|