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command: added command "idle"

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"idle" waits until something noteworthy happens on the server,
e.g. song change, playlist modified, database updated.  This allows
clients to keep up to date without polling.
This commit is contained in:
Max Kellermann
2008-10-14 22:38:14 +02:00
parent 30c86d8ae6
commit a3e3d2c950
14 changed files with 305 additions and 3 deletions
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12
src/command.c
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@@ -1239,6 +1239,17 @@ static int handlePlaylistAdd(struct client *client,
return print_playlist_result(client, result);
}
static int
handle_idle(struct client *client,
mpd_unused int argc, mpd_unused char *argv[])
{
/* enable "idle" mode on this client */
client_idle_wait(client);
/* return value is "1" so the caller won't print "OK" */
return 1;
}
void initCommands(void)
{
commandList = makeList(free, 1);
@@ -1307,6 +1318,7 @@ void initCommands(void)
addCommand(COMMAND_TAGTYPES, PERMISSION_READ, 0, 0, handleTagTypes);
addCommand(COMMAND_COUNT, PERMISSION_READ, 2, -1, handleCount);
addCommand(COMMAND_RENAME, PERMISSION_CONTROL, 2, 2, handleRename);
addCommand("idle", PERMISSION_READ, 0, 0, handle_idle);
sortList(commandList);
}