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Diffstat (limited to '')
| -rw-r--r-- | src/song_save.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/src/song_save.c b/src/song_save.c new file mode 100644 index 000000000..a7b398041 --- /dev/null +++ b/src/song_save.c @@ -0,0 +1,160 @@ +/* the Music Player Daemon (MPD) + * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) + * This project's homepage is: http://www.musicpd.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "song_save.h" +#include "song_print.h" +#include "directory.h" +#include "path.h" +#include "utils.h" +#include "tag.h" +#include "log.h" + +#define SONG_KEY "key: " +#define SONG_MTIME "mtime: " + +void writeSongInfoFromList(FILE * fp, SongList * list) +{ + ListNode *tempNode = list->firstNode; + + fprintf(fp, "%s\n", SONG_BEGIN); + + while (tempNode != NULL) { + fprintf(fp, "%s%s\n", SONG_KEY, tempNode->key); + fflush(fp); + printSongInfo(fileno(fp), (Song *) tempNode->data); + fprintf(fp, "%s%li\n", SONG_MTIME, + (long)((Song *) tempNode->data)->mtime); + tempNode = tempNode->nextNode; + } + + fprintf(fp, "%s\n", SONG_END); +} + +static void insertSongIntoList(SongList * list, ListNode ** nextSongNode, + char *key, Song * song) +{ + ListNode *nodeTemp; + int cmpRet = 0; + + while (*nextSongNode + && (cmpRet = strcmp(key, (*nextSongNode)->key)) > 0) { + nodeTemp = (*nextSongNode)->nextNode; + deleteNodeFromList(list, *nextSongNode); + *nextSongNode = nodeTemp; + } + + if (!(*nextSongNode)) { + insertInList(list, song->url, (void *)song); + } else if (cmpRet == 0) { + Song *tempSong = (Song *) ((*nextSongNode)->data); + if (tempSong->mtime != song->mtime) { + tag_free(tempSong->tag); + tag_end_add(song->tag); + tempSong->tag = song->tag; + tempSong->mtime = song->mtime; + song->tag = NULL; + } + freeJustSong(song); + *nextSongNode = (*nextSongNode)->nextNode; + } else { + insertInListBeforeNode(list, *nextSongNode, -1, song->url, + (void *)song); + } +} + +static int matchesAnMpdTagItemKey(char *buffer, int *itemType) +{ + int i; + + for (i = 0; i < TAG_NUM_OF_ITEM_TYPES; i++) { + if (0 == strncmp(mpdTagItemKeys[i], buffer, + strlen(mpdTagItemKeys[i]))) { + *itemType = i; + return 1; + } + } + + return 0; +} + +void readSongInfoIntoList(FILE * fp, SongList * list, Directory * parentDir) +{ + char buffer[MPD_PATH_MAX + 1024]; + int bufferSize = MPD_PATH_MAX + 1024; + Song *song = NULL; + ListNode *nextSongNode = list->firstNode; + ListNode *nodeTemp; + int itemType; + + while (myFgets(buffer, bufferSize, fp) && 0 != strcmp(SONG_END, buffer)) { + if (0 == strncmp(SONG_KEY, buffer, strlen(SONG_KEY))) { + if (song) { + insertSongIntoList(list, &nextSongNode, + song->url, song); + if (song->tag != NULL) + tag_end_add(song->tag); + } + + song = newNullSong(); + song->url = xstrdup(buffer + strlen(SONG_KEY)); + song->type = SONG_TYPE_FILE; + song->parentDir = parentDir; + } else if (*buffer == 0) { + /* ignore empty lines (starting with '\0') */ + } else if (song == NULL) { + FATAL("Problems reading song info\n"); + } else if (0 == strncmp(SONG_FILE, buffer, strlen(SONG_FILE))) { + /* we don't need this info anymore + song->url = xstrdup(&(buffer[strlen(SONG_FILE)])); + */ + } else if (matchesAnMpdTagItemKey(buffer, &itemType)) { + if (!song->tag) { + song->tag = tag_new(); + tag_begin_add(song->tag); + } + + tag_add_item(song->tag, itemType, + &(buffer + [strlen(mpdTagItemKeys[itemType]) + + 2])); + } else if (0 == strncmp(SONG_TIME, buffer, strlen(SONG_TIME))) { + if (!song->tag) { + song->tag = tag_new(); + tag_begin_add(song->tag); + } + + song->tag->time = atoi(&(buffer[strlen(SONG_TIME)])); + } else if (0 == strncmp(SONG_MTIME, buffer, strlen(SONG_MTIME))) { + song->mtime = atoi(&(buffer[strlen(SONG_MTIME)])); + } + else + FATAL("songinfo: unknown line in db: %s\n", buffer); + } + + if (song) { + insertSongIntoList(list, &nextSongNode, song->url, song); + if (song->tag != NULL) + tag_end_add(song->tag); + } + + while (nextSongNode) { + nodeTemp = nextSongNode->nextNode; + deleteNodeFromList(list, nextSongNode); + nextSongNode = nodeTemp; + } +} |