Watchdog使用指导

struct DevHandle *handle = NULL;
handle = WatchdogOpen(0);  /* 打开0号看门狗设备 */
if (handle == NULL) {
    HDF_LOGE("WatchdogOpen: failed, ret %d\n", ret);
    return;
}

int32_t ret;
int32_t status;
/* 获取Watchdog启动状态 */
ret = WatchdogGetStatus(handle, &status);
if (ret != 0) {
    HDF_LOGE("WatchdogGetStatus: failed, ret %d\n", ret);
    return;
}

int32_t ret;
uint32_t timeOut = 60;
/* 设置超时时间，单位：秒 */
ret = WatchdogSetTimeout(handle, timeOut);
if (ret != 0) {
    HDF_LOGE("WatchdogSetTimeout: failed, ret %d\n", ret);
    return;
}

int32_t ret;
uint32_t timeOut;
/* 获取超时时间，单位：秒 */
ret = WatchdogGetTimeout(handle, &timeOut);
if (ret != 0) {
    HDF_LOGE("WatchdogGetTimeout: failed, ret %d\n", ret);
    return;
}

int32_t ret;
/* 启动看门狗 */
ret = WatchdogStart(handle);
if (ret != 0) {
    HDF_LOGE("WatchdogStart: failed, ret %d\n", ret);
    return;
}

int32_t ret;
/* 喂狗 */
ret = WatchdogFeed(handle);
if (ret != 0) {
    HDF_LOGE("WatchdogFeed: failed, ret %d\n", ret);
    return;
}

int32_t ret;
/* 停止看门狗 */
ret = WatchdogStop(handle);
if (ret != 0) {
    HDF_LOGE("WatchdogStop: failed, ret %d\n", ret);
    return;
}

/* 关闭看门狗 */
ret = WatchdogClose(handle);