protocol: support client-to-client communication

1 files changed, 72 insertions, 0 deletions

diff --git a/src/client_message.h b/src/client_message.h
new file mode 100644
index 000000000..5c7e86c15
--- /dev/null
+++ b/src/client_message.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CLIENT_MESSAGE_H
+#define MPD_CLIENT_MESSAGE_H
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <glib.h>
+
+/**
+ * A client-to-client message.
+ */
+struct client_message {
+	char *channel;
+
+	char *message;
+};
+
+G_GNUC_PURE
+bool
+client_message_valid_channel_name(const char *name);
+
+G_GNUC_PURE
+static inline bool
+client_message_defined(const struct client_message *msg)
+{
+	assert(msg != NULL);
+	assert((msg->channel == NULL) == (msg->message == NULL));
+
+	return msg->channel != NULL;
+}
+
+void
+client_message_init_null(struct client_message *msg);
+
+void
+client_message_init(struct client_message *msg,
+		    const char *channel, const char *message);
+
+void
+client_message_copy(struct client_message *dest,
+		    const struct client_message *src);
+
+G_GNUC_MALLOC G_GNUC_PURE
+struct client_message *
+client_message_dup(const struct client_message *src);
+
+void
+client_message_deinit(struct client_message *msg);
+
+void
+client_message_free(struct client_message *msg);
+
+#endif