screen_search: fix crash when disconnected

[ncmpc.git] / src / mpdclient.c

diff --git a/src/mpdclient.c b/src/mpdclient.c
index 34d26df69e30a81965f3df091af98aad267a48cc..e55c1362482ece91917b22875f9dc9f671c339d3 100644 (file)
--- a/src/mpdclient.c
+++ b/src/mpdclient.c
@@ -1,21 +1,21 @@
 /* ncmpc (Ncurses MPD Client)
  * (c) 2004-2010 The Music Player Daemon Project
  * Project homepage: http://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.
-*/
+ */
 
 #include "mpdclient.h"
 #include "filelist.h"
@@ -83,13 +83,6 @@ mpdclient_handle_error(struct mpdclient *c)
        return false;
 }
 
-static bool
-mpdclient_finish_command(struct mpdclient *c)
-{
-       return mpd_response_finish(c->connection)
-               ? true : mpdclient_handle_error(c);
-}
-
 struct mpdclient *
 mpdclient_new(void)
 {
@@ -122,8 +115,10 @@ mpdclient_disconnect(struct mpdclient *c)
                c->idle = false;
        }
 
-       if (c->connection)
+       if (c->connection) {
                mpd_connection_free(c->connection);
+               ++c->connection_id;
+       }
        c->connection = NULL;
 
        if (c->status)
@@ -168,6 +163,8 @@ mpdclient_connect(struct mpdclient *c,
                return false;
        }
 
+       ++c->connection_id;
+
        return true;
 }
 
@@ -657,6 +654,76 @@ mpdclient_cmd_move(struct mpdclient *c, unsigned dest_pos, unsigned src_pos)
        return true;
 }
 
+#if LIBMPDCLIENT_CHECK_VERSION(2,5,0)
+/* The client-to-client protocol (MPD 0.17.0) */
+
+bool
+mpdclient_cmd_subscribe(struct mpdclient *c, const char *channel)
+{
+       struct mpd_connection *connection = mpdclient_get_connection(c);
+
+       if (connection == NULL)
+               return false;
+
+       if (!mpd_send_subscribe(connection, channel))
+               return mpdclient_handle_error(c);
+
+       return mpdclient_finish_command(c);
+}
+
+bool
+mpdclient_cmd_unsubscribe(struct mpdclient *c, const char *channel)
+{
+       struct mpd_connection *connection = mpdclient_get_connection(c);
+       if (connection == NULL)
+               return false;
+
+       if (!mpd_send_unsubscribe(connection, channel))
+               return mpdclient_handle_error(c);
+
+       return mpdclient_finish_command(c);
+}
+
+bool
+mpdclient_cmd_send_message(struct mpdclient *c, const char *channel,
+                          const char *text)
+{
+       struct mpd_connection *connection = mpdclient_get_connection(c);
+       if (connection == NULL)
+               return false;
+
+       if (!mpd_send_send_message(connection, channel, text))
+               return mpdclient_handle_error(c);
+
+       return mpdclient_finish_command(c);
+}
+
+bool
+mpdclient_send_read_messages(struct mpdclient *c)
+{
+       struct mpd_connection *connection = mpdclient_get_connection(c);
+       if (connection == NULL)
+               return false;
+
+       return mpd_send_read_messages(connection)?
+               true : mpdclient_handle_error(c);
+}
+
+struct mpd_message *
+mpdclient_recv_message(struct mpdclient *c)
+{
+       struct mpd_connection *connection = mpdclient_get_connection(c);
+       if (connection == NULL)
+               return false;
+
+       struct mpd_message *message = mpd_recv_message(connection);
+       if (message == NULL &&
+           mpd_connection_get_error(connection) != MPD_ERROR_SUCCESS)
+               mpdclient_handle_error(c);
+
+       return message;
+}
+#endif
 
 /****************************************************************************/
 /*** Playlist management functions ******************************************/