/** Delete a semaphore
* @param mutex the mutex to delete */
void sys_mutex_free(sys_mutex_t *mutex)
{
if (sys_mutex_valid(mutex)) {
SYS_STATS_DEC(mutex.used);
vSemaphoreDelete(*mutex);
}
}
/** Create a new mutex
* @param mutex pointer to the mutex to create
* @return a new mutex */
err_t sys_mutex_new(sys_mutex_t *mutex)
{
err_t ercd = ERR_MEM;
*mutex = xSemaphoreCreateMutex();
if (sys_mutex_valid(mutex)) {
ercd = ERR_OK;
SYS_STATS_INC_USED( mutex );
} else {
SYS_STATS_INC( mutex.err );
}
return ercd;
}
/*********************************************************************************************************
** 函数名称: __rtSafeRun
** 功能描述: 安全的运行一个回调函数, 不能破坏协议栈
** 输 入 : pfuncHook 执行函数
** pvArg0...5 参数
** 输 出 : 执行结果
** 全局变量:
** 调用模块:
*********************************************************************************************************/
static INT __rtSafeRun (FUNCPTR pfuncHook,
PVOID pvArg0,
PVOID pvArg1,
PVOID pvArg2,
PVOID pvArg3,
PVOID pvArg4,
PVOID pvArg5)
{
#if LWIP_TCPIP_CORE_LOCKING < 1
#error sylixos need LWIP_TCPIP_CORE_LOCKING > 0
#endif /* LWIP_TCPIP_CORE_LOCKING */
INT iError;
if (sys_mutex_valid(&lock_tcpip_core)) {
LOCK_TCPIP_CORE();
iError = pfuncHook(pvArg0, pvArg1, pvArg2, pvArg3, pvArg4, pvArg5);
UNLOCK_TCPIP_CORE();
} else {
iError = pfuncHook(pvArg0, pvArg1, pvArg2, pvArg3, pvArg4, pvArg5);
}
return (iError);
}
/** Unlock a mutex
* @param mutex the mutex to unlock */
void sys_mutex_unlock(sys_mutex_t *mutex)
{
if (sys_mutex_valid(mutex)) {
xSemaphoreGive(*mutex);
}
}
/** Lock a mutex
* @param mutex the mutex to lock */
void sys_mutex_lock(sys_mutex_t *mutex)
{
if (sys_mutex_valid(mutex)) {
while (xSemaphoreTake(*mutex, portMAX_DELAY) != pdTRUE);
}
}
