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(playlist.c) Add documentation and cleanups

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This commit is contained in:
Twinaphex 2015-01-16 19:42:11 +01:00
parent 0e0b10e28c
commit e9e3a2105d
2 changed files with 59 additions and 15 deletions
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55
playlist.c
View File

@ -85,24 +85,29 @@ void content_playlist_push(content_playlist_t *playlist,
for (i = 0; i < playlist->size; i++)
{
struct content_playlist_entry tmp;
bool equal_path = (!path && !playlist->entries[i].path) ||
(path && playlist->entries[i].path &&
!strcmp(path,playlist->entries[i].path));
/* Core name can have changed while still being the same core.
* Differentiate based on the core path only. */
if (equal_path && !strcmp(playlist->entries[i].core_path, core_path))
{
if (i == 0)
return;
if (!equal_path)
continue;
/* Seen it before, bump to top. */
struct content_playlist_entry tmp = playlist->entries[i];
memmove(playlist->entries + 1, playlist->entries,
i * sizeof(struct content_playlist_entry));
playlist->entries[0] = tmp;
if (strcmp(playlist->entries[i].core_path, core_path))
continue;
if (i == 0)
return;
}
/* Seen it before, bump to top. */
tmp = playlist->entries[i];
memmove(playlist->entries + 1, playlist->entries,
i * sizeof(struct content_playlist_entry));
playlist->entries[0] = tmp;
return;
}
if (playlist->size == playlist->cap)
@ -144,6 +149,12 @@ static void content_playlist_write_file(content_playlist_t *playlist)
fclose(file);
}
/**
* content_playlist_free:
* @playlist : Playlist handle.
*
* Frees playlist handle.
*/
void content_playlist_free(content_playlist_t *playlist)
{
size_t i;
@ -161,6 +172,12 @@ void content_playlist_free(content_playlist_t *playlist)
free(playlist);
}
/**
* content_playlist_clear:
* @playlist : Playlist handle.
*
* Clears all playlist entries in playlist.
**/
void content_playlist_clear(content_playlist_t *playlist)
{
size_t i;
@ -188,19 +205,18 @@ static bool content_playlist_read_file(
char *last = NULL;
FILE *file = fopen(path, "r");
/* If playlist file does not exist,
* create an empty playlist instead.
*/
if (!file)
{
/* Playlist file does not exist,
* creating an empty playlist instead.
*/
return true;
}
for (playlist->size = 0; playlist->size < playlist->cap; )
{
for (i = 0; i < 3; i++)
{
*buf[i] = '\0';
if (!fgets(buf[i], sizeof(buf[i]), file))
goto end;
@ -226,6 +242,15 @@ end:
return true;
}
/**
* content_playlist_init:
* @path : Path to playlist contents file.
* @size : Maximum capacity of playlist size.
*
* Creates and initializes a playlist.
*
* Returns: handle to new playlist if successful, otherwise NULL
**/
content_playlist_t *content_playlist_init(const char *path, size_t size)
{
content_playlist_t *playlist = (content_playlist_t*)

19
playlist.h
View File

@ -26,10 +26,29 @@ extern "C" {
typedef struct content_playlist content_playlist_t;
/**
* content_playlist_init:
*
* Creates and initializes a playlist.
*
* Returns: handle to new playlist if successful, otherwise NULL
**/
content_playlist_t *content_playlist_init(const char *path, size_t size);
/**
* content_playlist_free:
* @playlist : Playlist handle.
*
* Frees playlist handle.
*/
void content_playlist_free(content_playlist_t *playlist);
/**
* content_playlist_clear:
* @playlist : Playlist handle.
*
* Clears all playlist entries in playlist.
**/
void content_playlist_clear(content_playlist_t *playlist);
size_t content_playlist_size(content_playlist_t *playlist);