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| author | Max Kellermann <max@duempel.org> | 2009-10-08 15:22:39 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2009-10-08 15:22:39 +0200 |
| commit | ecb118f1edab572a904890eddafd3b11c0a79a79 (patch) | |
| tree | 4e273cd64778fcff80250b3b33ffb050a257c981 /src/playlist_state.c | |
| parent | 1e663b186998ffdeef9b3b9775558e9378bad342 (diff) | |
| download | mpd-ecb118f1edab572a904890eddafd3b11c0a79a79.tar.gz mpd-ecb118f1edab572a904890eddafd3b11c0a79a79.tar.xz mpd-ecb118f1edab572a904890eddafd3b11c0a79a79.zip | |
state_file: save only if something has changed
If nothing has changed since the last save, don't save the state
file. Saving will spin up the hard drive, which is undesirable on
hosts where MPD is idling in background.
Diffstat (limited to 'src/playlist_state.c')
| -rw-r--r-- | src/playlist_state.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/playlist_state.c b/src/playlist_state.c index f288a5738..5d18cc339 100644 --- a/src/playlist_state.c +++ b/src/playlist_state.c @@ -200,3 +200,21 @@ playlist_state_restore(const char *line, FILE *fp, struct playlist *playlist) return true; } + +unsigned +playlist_state_get_hash(const struct playlist *playlist) +{ + return playlist->queue.version ^ + (getPlayerElapsedTime() << 8) ^ + (playlist->current >= 0 + ? (queue_order_to_position(&playlist->queue, + playlist->current) << 16) + : 0) ^ + ((int)getPlayerCrossFade() << 20) ^ + (getPlayerState() << 24) ^ + (playlist->queue.random << 27) ^ + (playlist->queue.repeat << 28) ^ + (playlist->queue.single << 29) ^ + (playlist->queue.consume << 30) ^ + (playlist->queue.random << 31); +} |