cps_api_object_t cps_api_receive_object(cps_api_channel_t handle,size_t len) {
if (len==0) return NULL;
cps_api_object_guard og(cps_api_object_create());
t_std_error rc = STD_ERR_OK;
do {
if (cps_api_object_get_reserve_len(og.get()) < len) {
if (!cps_api_object_reserve(og.get(),len)) break;
}
int by = std_read(handle,cps_api_object_array(og.get()),len,true,&rc);
if (by!=(int)len) break;
if (!cps_api_object_received(og.get(),len)) break;
return og.release();
} while (0);
EV_LOG(ERR,DSAPI,0,"CPS IPC","Was not able to read the object - MSG (%X)",rc);
return NULL;
}
static cps_api_return_code_t _cps_api_wait_for_event(
cps_api_event_service_handle_t handle,
cps_api_object_t msg) {
std_event_msg_t m;
while (true) {
std_event_client_handle h;
cps_api_to_std_event_map_t *p = handle_to_data(handle);
{
std_mutex_simple_lock_guard lg(&p->lock);
if (!__connect_to_service(handle)) {
//retry every 50ms
std_usleep(MILLI_TO_MICRO(50));
continue;
}
h = handle_to_std_handle(handle);
}
if (std_client_wait_for_event_data(h,&m, cps_api_object_array(msg),
cps_api_object_get_reserve_len(msg))!=STD_ERR_OK) {
__close_channel(handle);
continue;
}
if (!cps_api_object_received(msg,m.data_len)) {
EV_LOG(ERR,DSAPI,0,"CPS-EV-RX","Invalid message received... returning to client");
__close_channel(handle);
continue;
}
break;
}
return cps_api_ret_code_OK;
}
