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authorEric Wong <normalperson@yhbt.net>2008-01-01 10:09:31 +0000
committerEric Wong <normalperson@yhbt.net>2008-01-01 10:09:31 +0000
commit09936358fa8098444019fc2a470b1685af1a19de (patch)
tree8dbb397c7c6f5ad77ebc5becd3f5307889691af8 /src/storedPlaylist.c
parent390ed29740c4aa5caf41d659bf392b20aec4788f (diff)
downloadmpd-09936358fa8098444019fc2a470b1685af1a19de.tar.gz
mpd-09936358fa8098444019fc2a470b1685af1a19de.tar.xz
mpd-09936358fa8098444019fc2a470b1685af1a19de.zip
storedPlaylist: cleanup API and avoid needless heap allocations + error checks
git-svn-id: https://svn.musicpd.org/mpd/trunk@7119 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to '')
-rw-r--r--src/storedPlaylist.c149
1 files changed, 56 insertions, 93 deletions
diff --git a/src/storedPlaylist.c b/src/storedPlaylist.c
index 17b3fceaf..3e846dce9 100644
--- a/src/storedPlaylist.c
+++ b/src/storedPlaylist.c
@@ -69,6 +69,37 @@ static ListNode *nodeOfStoredPlaylist(StoredPlaylist *sp, int index)
return NULL;
}
+static int writeStoredPlaylistToPath(StoredPlaylist *sp, const char *fspath)
+{
+ ListNode *node;
+ FILE *file;
+ char *s;
+
+ if (fspath == NULL)
+ return -1;
+
+ while (!(file = fopen(fspath, "w")) && errno == EINTR);
+ if (file == NULL) {
+ commandError(sp->fd, ACK_ERROR_NO_EXIST, "could not open file "
+ "\"%s\": %s", fspath, strerror(errno));
+ return -1;
+ }
+
+ node = sp->list->firstNode;
+ while (node != NULL) {
+ char path_max_tmp[MPD_PATH_MAX];
+
+ s = utf8_to_fs_charset(path_max_tmp, (char *)node->data);
+ if (playlist_saveAbsolutePaths && !isValidRemoteUtf8Url(s))
+ s = rmp2amp_r(path_max_tmp, s);
+ fprintf(file, "%s\n", s);
+ node = node->nextNode;
+ }
+
+ while (fclose(file) != 0 && errno == EINTR);
+ return 0;
+}
+
static void appendSongToStoredPlaylist(StoredPlaylist *sp, Song *song)
{
char path_max_tmp[MPD_PATH_MAX];
@@ -77,55 +108,32 @@ static void appendSongToStoredPlaylist(StoredPlaylist *sp, Song *song)
insertInListWithoutKey(sp->list, xstrdup(path_max_tmp));
}
-StoredPlaylist *newStoredPlaylist(const char *utf8name, int fd, int ignoreExisting)
+static void initStoredPlaylist(int fd, StoredPlaylist *sp, const char *utf8name)
{
- struct stat buf;
- char filename[MPD_PATH_MAX];
- StoredPlaylist *sp;
-
- if (!valid_playlist_name(fd, utf8name))
- return NULL;
-
- utf8_to_fs_playlist_path(filename, utf8name);
-
- if (stat(filename, &buf) == 0 && ! ignoreExisting) {
- commandError(fd, ACK_ERROR_EXIST,
- "a file or directory already exists with "
- "the name \"%s\"", utf8name);
- return NULL;
- }
- if (!(sp = malloc(sizeof(*sp))))
- return NULL;
-
+ utf8_to_fs_playlist_path(sp->fs_path, utf8name);
sp->list = makeList(DEFAULT_FREE_DATA_FUNC, 0);
sp->fd = fd;
- sp->fspath = xstrdup(filename);
-
- return sp;
}
-StoredPlaylist *loadStoredPlaylist(const char *utf8path, int fd)
+int loadStoredPlaylist(int fd, StoredPlaylist *sp, const char *utf8path)
{
- StoredPlaylist *sp;
FILE *file;
char buffer[MPD_PATH_MAX];
char path_max_tmp[MPD_PATH_MAX];
const size_t musicDir_len = strlen(musicDir);
if (!valid_playlist_name(fd, utf8path))
- return NULL;
+ return -1;
utf8_to_fs_playlist_path(path_max_tmp, utf8path);
while (!(file = fopen(path_max_tmp, "r")) && errno == EINTR);
if (file == NULL) {
commandError(fd, ACK_ERROR_NO_EXIST, "could not open file "
"\"%s\": %s", path_max_tmp, strerror(errno));
- return NULL;
+ return -1;
}
- sp = newStoredPlaylist(utf8path, fd, 1);
- if (!sp)
- goto out;
+ initStoredPlaylist(fd, sp, utf8path);
while (myFgets(buffer, sizeof(buffer), file)) {
char *s = buffer;
@@ -143,19 +151,14 @@ StoredPlaylist *loadStoredPlaylist(const char *utf8path, int fd)
insertInListWithoutKey(sp->list, xstrdup(s));
}
-out:
while (fclose(file) && errno == EINTR);
- return sp;
+ return 0;
}
void freeStoredPlaylist(StoredPlaylist *sp)
{
if (sp->list)
freeList(sp->list);
- if (sp->fspath)
- free(sp->fspath);
-
- free(sp);
}
static int moveSongInStoredPlaylist(int fd, StoredPlaylist *sp, int src, int dest)
@@ -219,26 +222,28 @@ static int moveSongInStoredPlaylist(int fd, StoredPlaylist *sp, int src, int des
return 0;
}
-int moveSongInStoredPlaylistByPath(int fd, const char *utf8path, int src, int dest)
+int moveSongInStoredPlaylistByPath(int fd, const char *utf8path,
+ int src, int dest)
{
- StoredPlaylist *sp = loadStoredPlaylist(utf8path, fd);
- if (!sp) {
+ StoredPlaylist sp;
+
+ if (loadStoredPlaylist(fd, &sp, utf8path) < 0) {
commandError(fd, ACK_ERROR_UNKNOWN, "could not open playlist");
return -1;
}
- if (moveSongInStoredPlaylist(fd, sp, src, dest) != 0) {
- freeStoredPlaylist(sp);
+ if (moveSongInStoredPlaylist(fd, &sp, src, dest) != 0) {
+ freeStoredPlaylist(&sp);
return -1;
}
- if (writeStoredPlaylist(sp) != 0) {
+ if (writeStoredPlaylistToPath(&sp, utf8path) != 0) {
commandError(fd, ACK_ERROR_UNKNOWN, "failed to save playlist");
- freeStoredPlaylist(sp);
+ freeStoredPlaylist(&sp);
return -1;
}
- freeStoredPlaylist(sp);
+ freeStoredPlaylist(&sp);
return 0;
}
@@ -278,63 +283,28 @@ static int removeOneSongFromStoredPlaylist(int fd, StoredPlaylist *sp, int pos)
int removeOneSongFromStoredPlaylistByPath(int fd, const char *utf8path, int pos)
{
- StoredPlaylist *sp = loadStoredPlaylist(utf8path, fd);
- if (!sp) {
+ StoredPlaylist sp;
+
+ if (loadStoredPlaylist(fd, &sp, utf8path) < 0) {
commandError(fd, ACK_ERROR_UNKNOWN, "could not open playlist");
return -1;
}
- if (removeOneSongFromStoredPlaylist(fd, sp, pos) != 0) {
- freeStoredPlaylist(sp);
+ if (removeOneSongFromStoredPlaylist(fd, &sp, pos) != 0) {
+ freeStoredPlaylist(&sp);
return -1;
}
- if (writeStoredPlaylist(sp) != 0) {
+ if (writeStoredPlaylistToPath(&sp, utf8path) != 0) {
commandError(fd, ACK_ERROR_UNKNOWN, "failed to save playlist");
- freeStoredPlaylist(sp);
+ freeStoredPlaylist(&sp);
return -1;
}
- freeStoredPlaylist(sp);
+ freeStoredPlaylist(&sp);
return 0;
}
-static int writeStoredPlaylistToPath(StoredPlaylist *sp, const char *fspath)
-{
- ListNode *node;
- FILE *file;
- char *s;
-
- if (fspath == NULL)
- return -1;
-
- while (!(file = fopen(fspath, "w")) && errno == EINTR);
- if (file == NULL) {
- commandError(sp->fd, ACK_ERROR_NO_EXIST, "could not open file "
- "\"%s\": %s", fspath, strerror(errno));
- return -1;
- }
-
- node = sp->list->firstNode;
- while (node != NULL) {
- char path_max_tmp[MPD_PATH_MAX];
-
- s = utf8_to_fs_charset(path_max_tmp, (char *)node->data);
- if (playlist_saveAbsolutePaths && !isValidRemoteUtf8Url(s))
- s = rmp2amp_r(path_max_tmp, s);
- fprintf(file, "%s\n", s);
- node = node->nextNode;
- }
-
- while (fclose(file) != 0 && errno == EINTR);
- return 0;
-}
-
-int writeStoredPlaylist(StoredPlaylist *sp)
-{
- return writeStoredPlaylistToPath(sp, sp->fspath);
-}
-
int appendSongToStoredPlaylistByPath(int fd, const char *utf8path, Song *song)
{
FILE *file;
@@ -364,13 +334,6 @@ int appendSongToStoredPlaylistByPath(int fd, const char *utf8path, Song *song)
return 0;
}
-void appendPlaylistToStoredPlaylist(StoredPlaylist *sp, Playlist *playlist)
-{
- int i;
- for (i = 0; i < playlist->length; i++)
- appendSongToStoredPlaylist(sp, playlist->songs[i]);
-}
-
int renameStoredPlaylist(int fd, const char *utf8from, const char *utf8to)
{
struct stat st;