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authorMax Kellermann <max@duempel.org>2008-10-23 07:19:46 +0200
committerMax Kellermann <max@duempel.org>2008-10-23 07:19:46 +0200
commitbc938603f68d03c2a439a53b581bfc85c218a0e0 (patch)
treea5ba17c8b947fb180974663b703d9fca05022f8d /src/playlist.c
parent890b0673469c79e3cc076b06a775d1d3f93d594d (diff)
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playlist: unsigned integers
There are some integers which have a "magic" -1 value which means "undefined" or "nothing". All others can be converted to unsigned, since they must not contain a negative number.
Diffstat (limited to '')
-rw-r--r--src/playlist.c239
1 files changed, 110 insertions, 129 deletions
diff --git a/src/playlist.c b/src/playlist.c
index c8974595d..49be62c54 100644
--- a/src/playlist.c
+++ b/src/playlist.c
@@ -66,9 +66,9 @@
static Playlist playlist;
static int playlist_state = PLAYLIST_STATE_STOP;
-int playlist_max_length = DEFAULT_PLAYLIST_MAX_LENGTH;
+unsigned playlist_max_length = DEFAULT_PLAYLIST_MAX_LENGTH;
static int playlist_stopOnError;
-static int playlist_errorCount;
+static unsigned playlist_errorCount;
static int playlist_noGoToNext;
bool playlist_saveAbsolutePaths = DEFAULT_PLAYLIST_SAVE_ABSOLUTE_PATHS;
@@ -82,11 +82,8 @@ static void incrPlaylistVersion(void)
static unsigned long max = ((uint32_t) 1 << 31) - 1;
playlist.version++;
if (playlist.version >= max) {
- int i;
-
- for (i = 0; i < playlist.length; i++) {
+ for (unsigned i = 0; i < playlist.length; i++)
playlist.songMod[i] = 0;
- }
playlist.version = 1;
}
@@ -96,11 +93,8 @@ static void incrPlaylistVersion(void)
void playlistVersionChange(void)
{
- int i;
-
- for (i = 0; i < playlist.length; i++) {
+ for (unsigned i = 0; i < playlist.length; i++)
playlist.songMod[i] = playlist.version;
- }
incrPlaylistVersion();
}
@@ -110,7 +104,7 @@ static void incrPlaylistCurrent(void)
if (playlist.current < 0)
return;
- if (playlist.current >= playlist.length - 1) {
+ if (playlist.current >= (int)playlist.length - 1) {
if (playlist.repeat)
playlist.current = 0;
else
@@ -122,7 +116,6 @@ static void incrPlaylistCurrent(void)
void initPlaylist(void)
{
char *test;
- int i;
ConfigParam *param;
playlist.length = 0;
@@ -150,23 +143,26 @@ void initPlaylist(void)
playlist.songs = xmalloc(sizeof(struct song *) * playlist_max_length);
playlist.songMod = xmalloc(sizeof(uint32_t) * playlist_max_length);
- playlist.order = xmalloc(sizeof(int) * playlist_max_length);
+ playlist.order = xmalloc(sizeof(playlist.order[0]) *
+ playlist_max_length);
playlist.idToPosition = xmalloc(sizeof(int) * playlist_max_length *
PLAYLIST_HASH_MULT);
- playlist.positionToId = xmalloc(sizeof(int) * playlist_max_length);
+ playlist.positionToId = xmalloc(sizeof(playlist.positionToId[0]) *
+ playlist_max_length);
memset(playlist.songs, 0, sizeof(char *) * playlist_max_length);
srandom(time(NULL));
- for (i = 0; i < playlist_max_length * PLAYLIST_HASH_MULT; i++) {
+ for (unsigned i = 0; i < playlist_max_length * PLAYLIST_HASH_MULT;
+ i++) {
playlist.idToPosition[i] = -1;
}
}
-static int getNextId(void)
+static unsigned getNextId(void)
{
- static int cur = -1;
+ static unsigned cur = (unsigned)-1;
do {
cur++;
@@ -180,8 +176,7 @@ static int getNextId(void)
void finishPlaylist(void)
{
- int i;
- for (i = 0; i < playlist.length; i++)
+ for (unsigned i = 0; i < playlist.length; i++)
if (!song_in_database(playlist.songs[i]))
song_free(playlist.songs[i]);
@@ -201,11 +196,9 @@ void finishPlaylist(void)
void clearPlaylist(void)
{
- int i;
-
stopPlaylist();
- for (i = 0; i < playlist.length; i++) {
+ for (unsigned i = 0; i < playlist.length; i++) {
if (!song_in_database(playlist.songs[i]))
song_free(playlist.songs[i]);
@@ -220,21 +213,18 @@ void clearPlaylist(void)
void showPlaylist(struct client *client)
{
- int i;
char path_max_tmp[MPD_PATH_MAX];
- for (i = 0; i < playlist.length; i++) {
+ for (unsigned i = 0; i < playlist.length; i++)
client_printf(client, "%i:%s\n", i,
song_get_url(playlist.songs[i], path_max_tmp));
- }
}
static void playlist_save(FILE *fp)
{
- int i;
char path_max_tmp[MPD_PATH_MAX];
- for (i = 0; i < playlist.length; i++)
+ for (unsigned i = 0; i < playlist.length; i++)
fprintf(fp, "%i:%s\n", i,
song_get_url(playlist.songs[i], path_max_tmp));
}
@@ -364,17 +354,16 @@ void readPlaylistState(FILE *fp)
}
}
-static void printPlaylistSongInfo(struct client *client, int song)
+static void printPlaylistSongInfo(struct client *client, unsigned song)
{
song_print_info(client, playlist.songs[song]);
- client_printf(client, "Pos: %i\nId: %i\n", song, playlist.positionToId[song]);
+ client_printf(client, "Pos: %u\nId: %u\n",
+ song, playlist.positionToId[song]);
}
int playlistChanges(struct client *client, uint32_t version)
{
- int i;
-
- for (i = 0; i < playlist.length; i++) {
+ for (unsigned i = 0; i < playlist.length; i++) {
if (version > playlist.version ||
playlist.songMod[i] >= version ||
playlist.songMod[i] == 0) {
@@ -387,9 +376,7 @@ int playlistChanges(struct client *client, uint32_t version)
int playlistChangesPosId(struct client *client, uint32_t version)
{
- int i;
-
- for (i = 0; i < playlist.length; i++) {
+ for (unsigned i = 0; i < playlist.length; i++) {
if (version > playlist.version ||
playlist.songMod[i] >= version ||
playlist.songMod[i] == 0) {
@@ -403,39 +390,37 @@ int playlistChangesPosId(struct client *client, uint32_t version)
enum playlist_result playlistInfo(struct client *client, int song)
{
- int i;
- int begin = 0;
- int end = playlist.length;
+ unsigned begin = 0;
+ unsigned end = playlist.length;
if (song >= 0) {
begin = song;
end = song + 1;
}
- if (song >= playlist.length)
+ if (song >= (int)playlist.length)
return PLAYLIST_RESULT_BAD_RANGE;
- for (i = begin; i < end; i++)
+ for (unsigned i = begin; i < end; i++)
printPlaylistSongInfo(client, i);
return PLAYLIST_RESULT_SUCCESS;
}
-static int song_id_to_position(int id)
+static int song_id_to_position(unsigned id)
{
- if (id < 0 || id >= PLAYLIST_HASH_MULT*playlist_max_length)
+ if (id >= PLAYLIST_HASH_MULT*playlist_max_length)
return -1;
assert(playlist.idToPosition[id] >= -1);
- assert(playlist.idToPosition[id] < playlist.length);
+ assert(playlist.idToPosition[id] < (int)playlist.length);
return playlist.idToPosition[id];
}
enum playlist_result playlistId(struct client *client, int id)
{
- int i;
int begin = 0;
- int end = playlist.length;
+ unsigned end = playlist.length;
if (id >= 0) {
begin = song_id_to_position(id);
@@ -445,16 +430,16 @@ enum playlist_result playlistId(struct client *client, int id)
end = begin + 1;
}
- for (i = begin; i < end; i++)
+ for (unsigned i = begin; i < end; i++)
printPlaylistSongInfo(client, i);
return PLAYLIST_RESULT_SUCCESS;
}
-static void swapSongs(int song1, int song2)
+static void swapSongs(unsigned song1, unsigned song2)
{
struct song *sTemp;
- int iTemp;
+ unsigned iTemp;
sTemp = playlist.songs[song1];
playlist.songs[song1] = playlist.songs[song2];
@@ -475,7 +460,7 @@ static void queueNextSongInPlaylist(void)
{
char path_max_tmp[MPD_PATH_MAX];
- if (playlist.current < playlist.length - 1) {
+ if (playlist.current < (int)playlist.length - 1) {
playlist.queued = playlist.current + 1;
DEBUG("playlist: queue song %i:\"%s\"\n",
playlist.queued,
@@ -517,7 +502,7 @@ static void clearPlayerQueue(void)
}
enum playlist_result
-playlist_append_file(const char *path, int uid, int *added_id)
+playlist_append_file(const char *path, int uid, unsigned *added_id)
{
int ret;
struct stat st;
@@ -557,7 +542,7 @@ song_by_url(const char *url)
return NULL;
}
-enum playlist_result addToPlaylist(const char *url, int *added_id)
+enum playlist_result addToPlaylist(const char *url, unsigned *added_id)
{
struct song *song;
@@ -571,15 +556,15 @@ enum playlist_result addToPlaylist(const char *url, int *added_id)
}
enum playlist_result
-addSongToPlaylist(struct song *song, int *added_id)
+addSongToPlaylist(struct song *song, unsigned *added_id)
{
- int id;
+ unsigned id;
if (playlist.length == playlist_max_length)
return PLAYLIST_RESULT_TOO_LARGE;
if (playlist_state == PLAYLIST_STATE_PLAY && playlist.queued >= 0 &&
- playlist.current == playlist.length - 1)
+ playlist.current == (int)playlist.length - 1)
clearPlayerQueue();
id = getNextId();
@@ -593,15 +578,14 @@ addSongToPlaylist(struct song *song, int *added_id)
playlist.length++;
if (playlist.random) {
- int swap;
- int start;
+ unsigned start;
/*if(playlist_state==PLAYLIST_STATE_STOP) start = 0;
else */ if (playlist.queued >= 0)
start = playlist.queued + 1;
else
start = playlist.current + 1;
if (start < playlist.length) {
- swap = random() % (playlist.length - start);
+ unsigned swap = random() % (playlist.length - start);
swap += start;
swapOrder(playlist.length - 1, swap);
}
@@ -615,15 +599,14 @@ addSongToPlaylist(struct song *song, int *added_id)
return PLAYLIST_RESULT_SUCCESS;
}
-enum playlist_result swapSongsInPlaylist(int song1, int song2)
+enum playlist_result swapSongsInPlaylist(unsigned song1, unsigned song2)
{
- if (song1 < 0 || song1 >= playlist.length ||
- song2 < 0 || song2 >= playlist.length)
+ if (song1 >= playlist.length || song2 >= playlist.length)
return PLAYLIST_RESULT_BAD_RANGE;
if (playlist_state == PLAYLIST_STATE_PLAY && playlist.queued >= 0) {
- int queuedSong = playlist.order[playlist.queued];
- int currentSong = playlist.order[playlist.current];
+ unsigned queuedSong = playlist.order[playlist.queued];
+ unsigned currentSong = playlist.order[playlist.current];
if (queuedSong == song1 || queuedSong == song2
|| currentSong == song1 || currentSong == song2)
@@ -632,8 +615,7 @@ enum playlist_result swapSongsInPlaylist(int song1, int song2)
swapSongs(song1, song2);
if (playlist.random) {
- int i;
- int k;
+ unsigned i, k;
int j = -1;
for (i = 0; playlist.order[i] != song1; i++) {
if (playlist.order[i] == song2)
@@ -645,9 +627,9 @@ enum playlist_result swapSongsInPlaylist(int song1, int song2)
j = i;
swapOrder(k, j);
} else {
- if (playlist.current == song1)
+ if (playlist.current == (int)song1)
playlist.current = song2;
- else if (playlist.current == song2)
+ else if (playlist.current == (int)song2)
playlist.current = song1;
}
@@ -656,7 +638,7 @@ enum playlist_result swapSongsInPlaylist(int song1, int song2)
return PLAYLIST_RESULT_SUCCESS;
}
-enum playlist_result swapSongsInPlaylistById(int id1, int id2)
+enum playlist_result swapSongsInPlaylistById(unsigned id1, unsigned id2)
{
int song1 = song_id_to_position(id1);
int song2 = song_id_to_position(id2);
@@ -674,12 +656,12 @@ enum playlist_result swapSongsInPlaylistById(int id1, int id2)
playlist.songMod[to] = playlist.version; \
}
-enum playlist_result deleteFromPlaylist(int song)
+enum playlist_result deleteFromPlaylist(unsigned song)
{
- int i;
- int songOrder;
+ unsigned i;
+ unsigned songOrder;
- if (song < 0 || song >= playlist.length)
+ if (song >= playlist.length)
return PLAYLIST_RESULT_BAD_RANGE;
if (playlist_state == PLAYLIST_STATE_PLAY && playlist.queued >= 0
@@ -717,27 +699,27 @@ enum playlist_result deleteFromPlaylist(int song)
incrPlaylistVersion();
if (playlist_state != PLAYLIST_STATE_STOP
- && playlist.current == songOrder) {
+ && playlist.current == (int)songOrder) {
/*if(playlist.current>=playlist.length) return playerStop(fd);
else return playPlaylistOrderNumber(fd,playlist.current); */
playerWait();
playlist_noGoToNext = 1;
}
- if (playlist.current > songOrder) {
+ if (playlist.current > (int)songOrder) {
playlist.current--;
- } else if (playlist.current >= playlist.length) {
+ } else if (playlist.current >= (int)playlist.length) {
incrPlaylistCurrent();
}
- if (playlist.queued > songOrder) {
+ if (playlist.queued > (int)songOrder) {
playlist.queued--;
}
return PLAYLIST_RESULT_SUCCESS;
}
-enum playlist_result deleteFromPlaylistById(int id)
+enum playlist_result deleteFromPlaylistById(unsigned id)
{
int song = song_id_to_position(id);
if (song < 0)
@@ -749,16 +731,12 @@ enum playlist_result deleteFromPlaylistById(int id)
void
deleteASongFromPlaylist(const struct song *song)
{
- int i;
-
if (NULL == playlist.songs)
return;
- for (i = 0; i < playlist.length; i++) {
- if (song == playlist.songs[i]) {
+ for (unsigned i = 0; i < playlist.length; i++)
+ if (song == playlist.songs[i])
deleteFromPlaylist(i);
- }
- }
}
void stopPlaylist(void)
@@ -790,7 +768,7 @@ static void playPlaylistOrderNumber(int orderNum)
enum playlist_result playPlaylist(int song, int stopOnError)
{
- int i = song;
+ unsigned i = song;
clearPlayerError();
@@ -802,12 +780,13 @@ enum playlist_result playPlaylist(int song, int stopOnError)
playerSetPause(0);
return PLAYLIST_RESULT_SUCCESS;
}
- if (playlist.current >= 0 && playlist.current < playlist.length) {
+ if (playlist.current >= 0 &&
+ playlist.current < (int)playlist.length) {
i = playlist.current;
} else {
i = 0;
}
- } else if (song < 0 || song >= playlist.length) {
+ } else if (song < 0 || song >= (int)playlist.length) {
return PLAYLIST_RESULT_BAD_RANGE;
}
@@ -816,7 +795,8 @@ enum playlist_result playPlaylist(int song, int stopOnError)
randomizeOrder(0, playlist.length - 1);
} else {
if (song >= 0)
- for (i = 0; song != playlist.order[i]; i++) ;
+ for (i = 0; song != (int)playlist.order[i];
+ i++) ;
if (playlist_state == PLAYLIST_STATE_STOP) {
playlist.current = 0;
}
@@ -901,7 +881,7 @@ static void currentSongInPlaylist(void)
syncPlaylistWithQueue();
- if (playlist.current >= 0 && playlist.current < playlist.length)
+ if (playlist.current >= 0 && playlist.current < (int)playlist.length)
playPlaylistOrderNumber(playlist.current);
else
stopPlaylist();
@@ -916,7 +896,7 @@ void nextSongInPlaylist(void)
playlist_stopOnError = 0;
- if (playlist.current < playlist.length - 1) {
+ if (playlist.current < (int)playlist.length - 1) {
playPlaylistOrderNumber(playlist.current + 1);
} else if (playlist.length && playlist.repeat) {
if (playlist.random)
@@ -972,21 +952,21 @@ void setPlaylistRepeatStatus(bool status)
idle_add(IDLE_OPTIONS);
}
-enum playlist_result moveSongInPlaylist(int from, int to)
+enum playlist_result moveSongInPlaylist(unsigned from, int to)
{
- int i;
+ unsigned i;
struct song *tmpSong;
- int tmpId;
- int currentSong;
+ unsigned tmpId;
+ unsigned currentSong;
- if (from < 0 || from >= playlist.length)
+ if (from >= playlist.length)
return PLAYLIST_RESULT_BAD_RANGE;
- if ((to >= 0 && to >= playlist.length) ||
- (to < 0 && abs(to) > playlist.length))
+ if ((to >= 0 && to >= (int)playlist.length) ||
+ (to < 0 && abs(to) > (int)playlist.length))
return PLAYLIST_RESULT_BAD_RANGE;
- if (from == to) /* no-op */
+ if ((int)from == to) /* no-op */
return PLAYLIST_RESULT_SUCCESS;
/*
@@ -1006,19 +986,19 @@ enum playlist_result moveSongInPlaylist(int from, int to)
if (playlist.queued >= 0)
queuedSong = playlist.order[playlist.queued];
- if (queuedSong == from || queuedSong == to
- || currentSong == from || currentSong == to)
+ if (queuedSong == (int)from || queuedSong == to
+ || currentSong == from || (int)currentSong == to)
clearPlayerQueue();
}
tmpSong = playlist.songs[from];
tmpId = playlist.positionToId[from];
/* move songs to one less in from->to */
- for (i = from; i < to; i++) {
+ for (i = from; (int)i < to; i++) {
moveSongFromTo(i + 1, i);
}
/* move songs to one more in to->from */
- for (i = from; i > to; i--) {
+ for (i = from; (int)i > to; i--) {
moveSongFromTo(i - 1, i);
}
/* put song at _to_ */
@@ -1029,10 +1009,11 @@ enum playlist_result moveSongInPlaylist(int from, int to)
/* now deal with order */
if (playlist.random) {
for (i = 0; i < playlist.length; i++) {
- if (playlist.order[i] > from && playlist.order[i] <= to) {
+ if (playlist.order[i] > from &&
+ (int)playlist.order[i] <= to) {
playlist.order[i]--;
} else if (playlist.order[i] < from &&
- playlist.order[i] >= to) {
+ (int)playlist.order[i] >= to) {
playlist.order[i]++;
} else if (from == playlist.order[i]) {
playlist.order[i] = to;
@@ -1041,21 +1022,23 @@ enum playlist_result moveSongInPlaylist(int from, int to)
}
else
{
- if (playlist.current == from)
+ if (playlist.current == (int)from)
playlist.current = to;
- else if (playlist.current > from && playlist.current <= to) {
+ else if (playlist.current > (int)from &&
+ playlist.current <= to) {
playlist.current--;
- } else if (playlist.current >= to && playlist.current < from) {
+ } else if (playlist.current >= to &&
+ playlist.current < (int)from) {
playlist.current++;
}
/* this first if statement isn't necessary since the queue
* would have been cleared out if queued == from */
- if (playlist.queued == from)
+ if (playlist.queued == (int)from)
playlist.queued = to;
- else if (playlist.queued > from && playlist.queued <= to) {
+ else if (playlist.queued > (int)from && playlist.queued <= to) {
playlist.queued--;
- } else if (playlist.queued>= to && playlist.queued < from) {
+ } else if (playlist.queued>= to && playlist.queued < (int)from) {
playlist.queued++;
}
}
@@ -1065,7 +1048,7 @@ enum playlist_result moveSongInPlaylist(int from, int to)
return PLAYLIST_RESULT_SUCCESS;
}
-enum playlist_result moveSongInPlaylistById(int id1, int to)
+enum playlist_result moveSongInPlaylistById(unsigned id1, int to)
{
int song = song_id_to_position(id1);
if (song < 0)
@@ -1076,11 +1059,10 @@ enum playlist_result moveSongInPlaylistById(int id1, int to)
static void orderPlaylist(void)
{
- int i;
+ unsigned i;
- if (playlist.current >= 0 && playlist.current < playlist.length) {
+ if (playlist.current >= 0 && playlist.current < (int)playlist.length)
playlist.current = playlist.order[playlist.current];
- }
if (playlist_state == PLAYLIST_STATE_PLAY) {
if (playlist.queued >= 0)
@@ -1136,7 +1118,7 @@ void setPlaylistRandomStatus(bool status)
}
else */ randomizeOrder(0, playlist.length - 1);
if (playlist.current >= 0 &&
- playlist.current < playlist.length) {
+ playlist.current < (int)playlist.length) {
swapOrder(playlist.current, 0);
playlist.current = 0;
}
@@ -1173,7 +1155,7 @@ void previousSongInPlaylist(void)
void shufflePlaylist(void)
{
- int i;
+ unsigned i;
int ri;
if (playlist.length > 1) {
@@ -1219,7 +1201,6 @@ enum playlist_result deletePlaylist(const char *utf8file)
enum playlist_result savePlaylist(const char *utf8file)
{
FILE *fp;
- int i;
struct stat sb;
char path_max_tmp[MPD_PATH_MAX];
@@ -1235,7 +1216,7 @@ enum playlist_result savePlaylist(const char *utf8file)
if (fp == NULL)
return PLAYLIST_RESULT_ERRNO;
- for (i = 0; i < playlist.length; i++)
+ for (unsigned i = 0; i < playlist.length; i++)
playlist_print_song(fp, playlist.songs[i]);
while (fclose(fp) && errno == EINTR) ;
@@ -1246,7 +1227,8 @@ enum playlist_result savePlaylist(const char *utf8file)
int getPlaylistCurrentSong(void)
{
- if (playlist.current >= 0 && playlist.current < playlist.length) {
+ if (playlist.current >= 0 &&
+ playlist.current < (int)playlist.length) {
return playlist.order[playlist.current];
}
@@ -1263,11 +1245,12 @@ int getPlaylistLength(void)
return playlist.length;
}
-enum playlist_result seekSongInPlaylist(int song, float seek_time)
+enum playlist_result seekSongInPlaylist(unsigned song, float seek_time)
{
- int i, ret;
+ unsigned i;
+ int ret;
- if (song < 0 || song >= playlist.length)
+ if (song >= playlist.length)
return PLAYLIST_RESULT_BAD_RANGE;
if (playlist.random)
@@ -1285,7 +1268,7 @@ enum playlist_result seekSongInPlaylist(int song, float seek_time)
} else
playPlaylistOrderNumber(i);
- if (playlist.current != i) {
+ if (playlist.current != (int)i) {
playPlaylistOrderNumber(i);
}
@@ -1296,7 +1279,7 @@ enum playlist_result seekSongInPlaylist(int song, float seek_time)
return PLAYLIST_RESULT_SUCCESS;
}
-enum playlist_result seekSongInPlaylistById(int id, float seek_time)
+enum playlist_result seekSongInPlaylistById(unsigned id, float seek_time)
{
int song = song_id_to_position(id);
if (song < 0)
@@ -1305,7 +1288,7 @@ enum playlist_result seekSongInPlaylistById(int id, float seek_time)
return seekSongInPlaylist(song, seek_time);
}
-int getPlaylistSongId(int song)
+unsigned getPlaylistSongId(unsigned song)
{
return playlist.positionToId[song];
}
@@ -1377,9 +1360,9 @@ enum playlist_result loadPlaylist(struct client *client, const char *utf8file)
}
void searchForSongsInPlaylist(struct client *client,
- int numItems, LocateTagItem * items)
+ unsigned numItems, LocateTagItem * items)
{
- int i;
+ unsigned i;
char **originalNeedles = xmalloc(numItems * sizeof(char *));
for (i = 0; i < numItems; i++) {
@@ -1401,11 +1384,9 @@ void searchForSongsInPlaylist(struct client *client,
}
void findSongsInPlaylist(struct client *client,
- int numItems, LocateTagItem * items)
+ unsigned numItems, LocateTagItem * items)
{
- int i;
-
- for (i = 0; i < playlist.length; i++) {
+ for (unsigned i = 0; i < playlist.length; i++) {
if (tagItemsFoundAndMatches(playlist.songs[i], numItems, items))
printPlaylistSongInfo(client, i);
}