stream: add a stream service class abstracting services using BSD sockets

1 files changed, 78 insertions, 0 deletions

diff --git a/src/libstrongswan/networking/streams/stream_service.h b/src/libstrongswan/networking/streams/stream_service.h
new file mode 100644
index 000000000..f5da92ee7
--- /dev/null
+++ b/src/libstrongswan/networking/streams/stream_service.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2013 Martin Willi
+ * Copyright (C) 2013 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+/**
+ * @defgroup stream_service stream_service
+ * @{ @ingroup streams
+ */
+
+#ifndef STREAM_SERVICE_H_
+#define STREAM_SERVICE_H_
+
+typedef struct stream_service_t stream_service_t;
+
+#include <networking/streams/stream.h>
+
+/**
+ * Constructor function prototype for stream_servicet.
+ *
+ * @param uri			URI to create a stream for
+ * @return				stream instance, NULL on error
+ */
+typedef stream_service_t*(*stream_service_constructor_t)(char *uri);
+
+/**
+ * Service callback routine for accepting client connections.
+ *
+ * The passed stream_service gets closed/destroyed by the callback caller.
+ *
+ * @param data			user data, as passed during registration
+ * @param stream		accept()ed client connection
+ */
+typedef void (*stream_service_cb_t)(void *data, stream_t *stream);
+
+/**
+ * A service accepting client connection streams.
+ */
+struct stream_service_t {
+
+	/**
+	 * Start accepting client connections on this stream service.
+	 *
+	 * To stop accepting connections, pass a NULL callback function.
+	 *
+	 * @param cb		callback function to call for accepted client streams
+	 * @param data		data to pass to callback function
+	 */
+	void (*on_accept)(stream_service_t *this,
+					  stream_service_cb_t cb, void *data);
+
+	/**
+	 * Destroy a stream_service_t.
+	 */
+	void (*destroy)(stream_service_t *this);
+};
+
+/**
+ * Create a service from a file descriptor.
+ *
+ * The file descriptor MUST be a socket.
+ *
+ * @param fd		file descriptor to wrap into a stream_service_t
+ * @return			stream_service instance
+ */
+stream_service_t *stream_service_create_from_fd(int fd);
+
+#endif /** STREAM_SERVICE_H_ @}*/