refactoring

src/ustreamer/device.c

@@ -199,6 +199,7 @@ int device_open(struct device_t *dev) {
 }
 
 void device_close(struct device_t *dev) {
+	dev->run->persistent_timeout_reported = false;
 	dev->run->n_workers = 0;
 
 	if (dev->run->pictures) {
@@ -292,8 +293,21 @@ int device_select(struct device_t *dev, bool *has_read, bool *has_write, bool *h
 		*has_write = false;
 		*has_error = false;
 	}
-
 	LOG_DEBUG("Device select() --> %d", retval);
+
+	if (retval > 0) {
+		dev->run->persistent_timeout_reported = false;
+	} else if (retval == 0) {
+		if (dev->persistent) {
+			if (!dev->run->persistent_timeout_reported) {
+				LOG_ERROR("Persistent device timeout (unplugged)");
+				dev->run->persistent_timeout_reported = true;
+			}
+		} else {
+			// Если устройство не персистентное, то таймаут является ошибкой
+			retval = -1;
+		}
+	}
 	return retval;
 }
 

src/ustreamer/device.h

@@ -71,6 +71,7 @@ struct device_runtime_t {
 	struct hw_buffer_t	*hw_buffers;
 	struct picture_t	**pictures;
 	bool				capturing;
+	bool				persistent_timeout_reported;
 };
 
 enum control_mode_t {

src/ustreamer/stream.c

@@ -139,7 +139,6 @@ void stream_loop(struct stream_t *stream) {
 		unsigned captured_fps = 0;
 		unsigned captured_fps_accum = 0;
 		long long captured_fps_second = 0;
-		bool persistent_timeout_reported = false;
 
 		LOG_INFO("Capturing ...");
 
@@ -183,26 +182,11 @@ void stream_loop(struct stream_t *stream) {
 					LOG_PERROR("Mainloop select() error");
 					break;
 				}
-
-			} else if (selected == 0) {
+			} else if (selected == 0) { // Persistent timeout
 #				ifdef WITH_GPIO
 				gpio_set_stream_online(false);
 #				endif
-
-				if (stream->dev->persistent) {
-					if (!persistent_timeout_reported) {
-						LOG_ERROR("Mainloop select() timeout, polling ...")
-						persistent_timeout_reported = true;
-					}
-					continue;
-				} else {
-					LOG_ERROR("Mainloop select() timeout");
-					break;
-				}
-
 			} else {
-				persistent_timeout_reported = false;
-
 				if (has_read) {
 					LOG_DEBUG("Frame is ready");