playlist: pass const pointers when possible

diff --git a/src/playlist.c b/src/playlist.c
index 5f3dd4582abe5ae9c1ff38169956dc82cc93909d..0a448333c77a07f718b882a005bf6a48518307c0 100644 (file)
--- a/src/playlist.c
+++ b/src/playlist.c
@@ -85,7 +85,7 @@ playlist_lookup_song(mpdclient_t *c, gint id)
 }
 
 gint
-playlist_get_index(mpdclient_t *c, struct mpd_song *song)
+playlist_get_index(const struct mpdclient *c, const struct mpd_song *song)
 {
        guint i;
 
@@ -98,12 +98,12 @@ playlist_get_index(mpdclient_t *c, struct mpd_song *song)
 }
 
 gint
-playlist_get_index_from_id(mpdclient_t *c, gint id)
+playlist_get_index_from_id(const struct mpdclient *c, gint id)
 {
        guint i;
 
        for (i = 0; i < c->playlist.list->len; ++i) {
-               struct mpd_song *song = playlist_get(&c->playlist, i);
+               const struct mpd_song *song = playlist_get(&c->playlist, i);
                if (song->id == id)
                        return (gint)i;
        }
@@ -112,7 +112,7 @@ playlist_get_index_from_id(mpdclient_t *c, gint id)
 }
 
 gint
-playlist_get_index_from_file(mpdclient_t *c, gchar *filename)
+playlist_get_index_from_file(const struct mpdclient *c, const gchar *filename)
 {
        guint i;
 

diff --git a/src/playlist.h b/src/playlist.h
index 454f1f05f50ed1016e36bd47cd94cc1e17ff03ea..77983f6ed6ec1b2a0beccd4e52d808e282dde286 100644 (file)
--- a/src/playlist.h
+++ b/src/playlist.h
@@ -124,10 +124,13 @@ struct mpd_song *playlist_lookup_song(struct mpdclient *c, gint id);
 
 struct mpd_song *playlist_get_song(struct mpdclient *c, gint index);
 
-gint playlist_get_index(struct mpdclient *c, struct mpd_song *song);
+gint
+playlist_get_index(const struct mpdclient *c, const struct mpd_song *song);
 
-gint playlist_get_index_from_id(struct mpdclient *c, gint id);
+gint
+playlist_get_index_from_id(const struct mpdclient *c, gint id);
 
-gint playlist_get_index_from_file(struct mpdclient *c, gchar *filename);
+gint
+playlist_get_index_from_file(const struct mpdclient *c, const gchar *filename);
 
 #endif