implement saved memory by not storing full path

git-svn-id: https://svn.musicpd.org/mpd/trunk@2601 09075e82-0dd4-0310-85a5-a0d7c8717e4f

9 files changed, 124 insertions, 67 deletions

diff --git a/src/dbUtils.c b/src/dbUtils.c
index 63f1f33b..55791653 100644
--- a/src/dbUtils.c
+++ b/src/dbUtils.c
@@ -6,6 +6,7 @@
 #include "playlist.h"
 #include "tag.h"
 #include "tagTracker.h"
+#include "log.h"
 
 #define LOCATE_TAG_FILE_TYPE	TAG_NUM_OF_ITEM_TYPES+10
 #define LOCATE_TAG_FILE_KEY	"filename"
@@ -76,7 +77,7 @@ static inline int strstrSearchTag(Song * song, int type, char * str) {
 	int ret = 0;
 
 	if(type == LOCATE_TAG_FILE_TYPE) {
-		dup = strDupToUpper(song->utf8url);
+		dup = strDupToUpper(getSongUrl(song));
 		if(strstr(dup, str)) ret = 1;
 		free(dup);
 		return ret;
@@ -122,7 +123,7 @@ static inline int tagItemFoundAndMatches(Song * song, int type, char * str) {
 	int i;
 
 	if(type == LOCATE_TAG_FILE_TYPE) {
-		if(0 == strcmp(str, song->utf8url)) return 1;
+		if(0 == strcmp(str, getSongUrl(song))) return 1;
 	}
 
 	if(!song->tag) return 0;
@@ -217,7 +218,7 @@ void printUnvisitedTags(FILE * fp, Song * song, int tagType) {
 	MpdTag * tag = song->tag;
 
 	if(tagType == LOCATE_TAG_FILE_TYPE) {
-		myfprintf(fp, "file: %s\n", song->utf8url);
+		printSongUrl(fp, song);
 		return;
 	}
 
@@ -268,3 +269,23 @@ int listAllUniqueTags(FILE * fp, int type, int numConditionals,
 
 	return ret;
 }
+
+int sumSavedMemoryInDirectory(FILE * fp, Directory * dir, void * data) {
+	int * sum = data;
+
+	if(!dir->utf8name) return 0;
+
+	*sum += (strlen(dir->utf8name)+1-sizeof(Directory *))*
+				dir->songs->numberOfNodes;
+	
+	return 0;
+}
+
+void printSavedMemoryFromFilenames() {
+	int sum;
+	
+	traverseAllIn(stderr, NULL, NULL, sumSavedMemoryInDirectory,
+			(void *)&sum);
+
+	DEBUG("saved memory from filenames: %i\n", sum);
+}
diff --git a/src/dbUtils.h b/src/dbUtils.h
index 20d80f99..df5a7165 100644
--- a/src/dbUtils.h
+++ b/src/dbUtils.h
@@ -36,4 +36,6 @@ unsigned long sumSongTimesIn(FILE * fp, char * name);
 int listAllUniqueTags(FILE * fp, int type, int numConditiionals, 
 		LocateTagItem * conditionals);
 
+void printSavedMemoryFromFilenames();
+
 #endif
diff --git a/src/directory.c b/src/directory.c
index 5ac78afa..18c0b7c9 100644
--- a/src/directory.c
+++ b/src/directory.c
@@ -280,8 +280,8 @@ void removeSongFromDirectory(Directory * directory, char * shortname) {
 	void * song;
 	
 	if(findInList(directory->songs,shortname,&song)) {
-		LOG("removing: %s\n",((Song *)song)->utf8url);
-		deleteFromList(directory->songs,shortname);
+		LOG("removing: %s\n", getSongUrl((Song *)song));
+		deleteFromList(directory->songs, shortname);
 	}
 }
 
@@ -317,7 +317,7 @@ int updateInDirectory(Directory * directory, char * shortname, char * name) {
 
 	if(S_ISREG(st.st_mode) && hasMusicSuffix(name)) {
 		if(0==findInList(directory->songs,shortname,&song)) {
-			addToDirectory(directory,shortname,name);
+			addToDirectory(directory, shortname, name);
                         return DIRECTORY_RETURN_UPDATE;
 		}
 		else if(st.st_mtime!=((Song *)song)->mtime) {
@@ -540,7 +540,7 @@ int updatePath(char * utf8path) {
 				parentDirectory->parent,
 				parentDirectory->stat->inode,
 				parentDirectory->stat->device) && 
-				song && isMusic(song->utf8url,&mtime)) 
+				song && isMusic(getSongUrl(song), &mtime)) 
 		{
 			free(path);
                         if(song->mtime==mtime) return 0;
@@ -553,7 +553,7 @@ int updatePath(char * utf8path) {
 		}
 		/* if updateDirectory fials, means we should delete it */
 		else {
-                        removeSongFromDirectory(parentDirectory,shortname);
+                        removeSongFromDirectory(parentDirectory, shortname);
                         ret = 1;
                         /* don't return, path maybe a directory now*/
                 }
@@ -749,10 +749,10 @@ int addToDirectory(Directory * directory, char * shortname, char * name) {
 
 	if(S_ISREG(st.st_mode) && hasMusicSuffix(name)) {
 		Song * song;
-		song = addSongToList(directory->songs,shortname,name,
-				SONG_TYPE_FILE);
+		song = addSongToList(directory->songs, shortname, name,
+				SONG_TYPE_FILE, directory);
 		if(!song) return -1;
-		LOG("added %s\n",name);
+		LOG("added %s\n", name);
 		return 1;
 	}
 	else if(S_ISDIR(st.st_mode)) {
@@ -935,7 +935,7 @@ void readDirectoryInfo(FILE * fp,Directory * directory) {
 			readDirectoryInfo(fp,subDirectory);
 		}
 		else if(0==strncmp(SONG_BEGIN,buffer,strlen(SONG_BEGIN))) {
-			readSongInfoIntoList(fp,directory->songs);
+			readSongInfoIntoList(fp, directory->songs, directory);
 		}
 		else {
 			ERROR("Unknown line in db: %s\n",buffer);
diff --git a/src/directory.h b/src/directory.h
index b0b2c843..a607d254 100644
--- a/src/directory.h
+++ b/src/directory.h
@@ -74,4 +74,8 @@ int traverseAllIn(FILE * fp, char * name,
 			int (*forEachSong)(FILE *, Song *, void *),
 			int (*forEachDir)(FILE *, Directory *, void *),
 			void * data);
+
+/* free the string that is returned */
+char * catDirAndFileName(Directory * dir, char * filename);
+
 #endif
diff --git a/src/main.c b/src/main.c
index 65557a4b..e1b71189 100644
--- a/src/main.c
+++ b/src/main.c
@@ -36,6 +36,7 @@
 #include "inputStream.h"
 #include "tag.h"
 #include "tagTracker.h"
+#include "dbUtils.h"
 #include "../config.h"
 
 #include <stdio.h>
@@ -431,6 +432,7 @@ int main(int argc, char * argv[]) {
 	initInputStream(); 
 
 	printMemorySavedByTagTracker();
+	printSavedMemoryFromFilenames();
 	
         daemonize(&options);
 
diff --git a/src/player.c b/src/player.c
index 5b829897..e398323e 100644
--- a/src/player.c
+++ b/src/player.c
@@ -179,7 +179,7 @@ int playerPlay(FILE * fp, Song * song) {
 
 	copyMpdTagToMetadataChunk(song->tag, &(pc->fileMetadataChunk));
 
-        strncpy(pc->utf8url, song->utf8url, MAXPATHLEN);
+        strncpy(pc->utf8url, getSongUrl(song), MAXPATHLEN);
 	pc->utf8url[MAXPATHLEN] = '\0';
 
 	pc->play = 1;
@@ -324,7 +324,7 @@ int queueSong(Song * song) {
 	PlayerControl * pc = &(getPlayerData()->playerControl);
 
 	if(pc->queueState==PLAYER_QUEUE_BLANK) {
-                strncpy(pc->utf8url, song->utf8url, MAXPATHLEN);
+                strncpy(pc->utf8url, getSongUrl(song), MAXPATHLEN);
 		pc->utf8url[MAXPATHLEN] = '\0';
 
                 if(song->tag) pc->fileTime = song->tag->time;
@@ -380,13 +380,13 @@ int playerSeek(FILE * fp, Song * song, float time) {
 		return -1;
 	}
 
-	if(strcmp(pc->utf8url, song->utf8url)!=0) {
+	if(strcmp(pc->utf8url, getSongUrl(song))!=0) {
                 if(song->tag) pc->fileTime = song->tag->time;
                 else pc->fileTime = 0;
 
 		copyMpdTagToMetadataChunk(song->tag, &(pc->fileMetadataChunk));
 
-		strncpy(pc->utf8url, song->utf8url, MAXPATHLEN);
+		strncpy(pc->utf8url, getSongUrl(song), MAXPATHLEN);
 		pc->utf8url[MAXPATHLEN] = '\0';
 	}
 
@@ -476,7 +476,7 @@ Song * playerCurrentDecodeSong() {
 		memcpy(prev, &(pc->metadataChunk), sizeof(MetadataChunk));
                 if(song) freeJustSong(song);
                 song = newNullSong();
-                song->utf8url = strdup(pc->currentUrl);
+                song->url = strdup(pc->currentUrl);
 		song->tag = metadataChunkToMpdTagDup(prev);
                 ret =  song;
         	resetPlayerMetadata();
diff --git a/src/playlist.c b/src/playlist.c
index ea88ef18..d7a946e2 100644
--- a/src/playlist.c
+++ b/src/playlist.c
@@ -245,7 +245,7 @@ int showPlaylist(FILE * fp) {
 	int i;
 
 	for(i=0;i<playlist.length;i++) {
-		myfprintf(fp,"%i:%s\n",i,(playlist.songs[i])->utf8url);
+		myfprintf(fp,"%i:%s\n", i, getSongUrl(playlist.songs[i]));
 	}
 
 	return 0;
@@ -428,12 +428,7 @@ void readPlaylistState() {
 }
 
 void printPlaylistSongInfo(FILE * fp, int song) {
-	MpdTag * tag;
-	
-	myfprintf(fp, "file: %s\n", (playlist.songs[song])->utf8url);
-	if((tag = (playlist.songs[song])->tag)) {
-		printMpdTag(fp, tag);
-	}
+	printSongInfo(fp, playlist.songs[song]);
 	myfprintf(fp, "Pos: %i\n", song);
 	myfprintf(fp, "Id: %i\n", playlist.positionToId[song]);
 }
@@ -523,8 +518,8 @@ void queueNextSongInPlaylist() {
 		playlist.queued = playlist.current+1;
 		DEBUG("playlist: queue song %i:\"%s\"\n",
 				playlist.queued,
-				playlist.songs[playlist.order[
-				playlist.queued]]->utf8url);
+				getSongUrl(playlist.songs[playlist.order[
+					playlist.queued]]));
 		if(queueSong(playlist.songs[playlist.order[playlist.queued]]) <
                                 0) 
                 {
@@ -539,8 +534,8 @@ void queueNextSongInPlaylist() {
 		playlist.queued = 0;
 		DEBUG("playlist: queue song %i:\"%s\"\n",
 				playlist.queued,
-				playlist.songs[playlist.order[
-				playlist.queued]]->utf8url);
+				getSongUrl(playlist.songs[playlist.order[
+					playlist.queued]]));
 		if(queueSong(playlist.songs[playlist.order[playlist.queued]]) <
 				0) 
                 {
@@ -603,7 +598,7 @@ int addToPlaylist(FILE * fp, char * url, int printId) {
 	if((song = getSongFromDB(url))) {
 	}
 	else if(isValidRemoteUtf8Url(url) && 
-                        (song = newSong(url,SONG_TYPE_URL))) 
+                        (song = newSong(url, SONG_TYPE_URL, NULL))) 
         {
 	}
 	else {
@@ -836,7 +831,7 @@ int playPlaylistOrderNumber(FILE * fp, int orderNum) {
 	playlist_queueError = 0;
 
 	DEBUG("playlist: play %i:\"%s\"\n",orderNum,
-			(playlist.songs[playlist.order[orderNum]])->utf8url);
+			getSongUrl(playlist.songs[playlist.order[orderNum]]));
 
 	if(playerPlay(fp,(playlist.songs[playlist.order[orderNum]])) < 0) {
 		stopPlaylist(fp);
@@ -917,7 +912,7 @@ void syncCurrentPlayerDecodeMetadata() {
         song = playlist.songs[songNum];
 
         if(song->type == SONG_TYPE_URL &&
-                        0 == strcmp(song->utf8url, songPlayer->utf8url) &&
+                        0 == strcmp(getSongUrl(song), songPlayer->url) &&
                         !mpdTagsAreEqual(song->tag, songPlayer->tag))
         {
                 if(song->tag) freeMpdTag(song->tag);
@@ -1321,10 +1316,10 @@ int savePlaylist(FILE * fp, char * utf8file) {
 				playlist.songs[i]->type==SONG_TYPE_FILE) 
 		{
 			myfprintf(fileP,"%s\n",rmp2amp(utf8ToFsCharset((
-				        playlist.songs[i])->utf8url)));
+				        getSongUrl(playlist.songs[i])))));
 		}
 		else myfprintf(fileP,"%s\n",
-				utf8ToFsCharset((playlist.songs[i])->utf8url));
+				utf8ToFsCharset(getSongUrl(playlist.songs[i])));
 	}
 
 	while(fclose(fileP) && errno==EINTR);
diff --git a/src/song.c b/src/song.c
index 44afcbe4..5e35ecb2 100644
--- a/src/song.c
+++ b/src/song.c
@@ -29,16 +29,17 @@
 #define SONG_KEY	"key: "
 #define SONG_FILE	"file: "
 #define SONG_TIME	"Time: "
-#define SONG_MTIME	"mtime: "
+#define SONG_MTIME	"Mtime: "
 
 #include <stdlib.h>
 #include <string.h>
+#include <assert.h>
 
 Song * newNullSong() {
 	Song * song = malloc(sizeof(Song));
 
 	song->tag = NULL;
-	song->utf8url = NULL;
+	song->url = NULL;
 	song->type = SONG_TYPE_FILE;
 	song->parentDir = NULL;
 
@@ -48,11 +49,11 @@ Song * newNullSong() {
 Song * newSong(char * url, int type, Directory * parentDir) {
 	Song * song = NULL;
 
-        if(strchr(utf8url, '\n')) return NULL;
+        if(strchr(url, '\n')) return NULL;
 
         song  = newNullSong();
 
-	song->utf8url = strdup(utf8url);
+	song->url = strdup(url);
 	song->type = type;
 	song->parentDir = parentDir;
 
@@ -60,9 +61,9 @@ Song * newSong(char * url, int type, Directory * parentDir) {
 
 	if(song->type == SONG_TYPE_FILE) {
                 InputPlugin * plugin;
-		if((plugin = isMusic(utf8url,&(song->mtime)))) {
+		if((plugin = isMusic(getSongUrl(song), &(song->mtime)))) {
 		        song->tag = plugin->tagDupFunc(
-                                        rmp2amp(utf8ToFsCharset(utf8url)));
+				rmp2amp(utf8ToFsCharset(getSongUrl(song))));
                 }
 		if(!song->tag || song->tag->time<0) {
 			freeSong(song);
@@ -75,13 +76,11 @@ Song * newSong(char * url, int type, Directory * parentDir) {
 
 void freeSong(Song * song) {
 	deleteASongFromPlaylist(song);
-	free(song->utf8url);
-	if(song->tag) freeMpdTag(song->tag);
-	free(song);
+	freeJustSong(song);
 }
 
 void freeJustSong(Song * song) {
-	free(song->utf8url);
+	free(song->url);
 	if(song->tag) freeMpdTag(song->tag);
 	free(song);
 }
@@ -90,19 +89,19 @@ SongList * newSongList() {
 	return makeList((ListFreeDataFunc *)freeSong);
 }
 
-Song * addSongToList(SongList * list, char * url, int songType, 
-		Directory * parentDirectory)
+Song * addSongToList(SongList * list, char * url, char * utf8path, 
+		int songType, Directory * parentDirectory)
 {
 	Song * song = NULL;
 
-	switch(type) {
+	switch(songType) {
 	case SONG_TYPE_FILE:
-		if(isMusic(utf8url,NULL)) {
-			song = newSong(url, type, parentDirectory);
+		if(isMusic(utf8path, NULL)) {
+			song = newSong(url, songType, parentDirectory);
 		}
 		break;
 	case SONG_TYPE_URL:
-		song = newSong(utf8url, type, parentDirectory);
+		song = newSong(url, songType, parentDirectory);
 		break;
 	}
 
@@ -119,7 +118,7 @@ void freeSongList(SongList * list) {
 
 void printSongUrl(FILE * fp, Song * song) {
 	if(song->parentDir) {
-		myfprintf(fp, "%s%s%s\n", SONG_FILE, song->parentDir->utf8name,
+		myfprintf(fp, "%s%s/%s\n", SONG_FILE, song->parentDir->utf8name,
 				song->url);
 	}
 	else {
@@ -208,11 +207,10 @@ static int matchesAnMpdTagItemKey(char * buffer, int * itemType) {
 	return 0;
 }
 
-void readSongInfoIntoList(FILE * fp, SongList * list) {
+void readSongInfoIntoList(FILE * fp, SongList * list, Directory * parentDir) {
 	char buffer[MAXPATHLEN+1024];
 	int bufferSize = MAXPATHLEN+1024;
 	Song * song = NULL;
-	char * key = NULL;
 	ListNode * nextSongNode = list->firstNode;
 	ListNode * nodeTemp;
 	int itemType;
@@ -220,21 +218,25 @@ void readSongInfoIntoList(FILE * fp, SongList * list) {
 	while(myFgets(buffer,bufferSize,fp) && 0!=strcmp(SONG_END,buffer)) {
 		if(0==strncmp(SONG_KEY,buffer,strlen(SONG_KEY))) {
 			if(song) {
-				insertSongIntoList(list,&nextSongNode,key,song);
+				insertSongIntoList(list,&nextSongNode,
+						song->url,
+						song);
 				song = NULL;
-				free(key);
 			}
 
-			key = strdup(&(buffer[strlen(SONG_KEY)]));
 			song = newNullSong();
+			song->url = strdup(buffer+strlen(SONG_KEY));
 			song->type = SONG_TYPE_FILE;
+			song->parentDir = parentDir;
 		}
 		else if(0==strncmp(SONG_FILE,buffer,strlen(SONG_FILE))) {
-			if(!song || song->utf8url) {
+			if(!song) {
 				ERROR("Problems reading song info\n");
 				exit(EXIT_FAILURE);
 			}
-			song->utf8url = strdup(&(buffer[strlen(SONG_FILE)]));
+			/* we don't need this info anymore
+			song->url = strdup(&(buffer[strlen(SONG_FILE)]));
+			*/
 		}
 		else if(matchesAnMpdTagItemKey(buffer, &itemType)) {
 			if(!song->tag) song->tag = newMpdTag();
@@ -255,9 +257,8 @@ void readSongInfoIntoList(FILE * fp, SongList * list) {
 	}
 	
 	if(song) {
-		insertSongIntoList(list,&nextSongNode,key,song);
+		insertSongIntoList(list, &nextSongNode, song->url, song);
 		song = NULL;
-		free(key);
 	}
 
 	while(nextSongNode) {
@@ -268,8 +269,6 @@ void readSongInfoIntoList(FILE * fp, SongList * list) {
 }
 
 int updateSongInfo(Song * song) {
-	char * utf8url = song->utf8url;
-
 	if(song->type == SONG_TYPE_FILE) {
                 InputPlugin * plugin;
 
@@ -277,9 +276,9 @@ int updateSongInfo(Song * song) {
 
 		song->tag = NULL;
 
-		if((plugin = isMusic(utf8url,&(song->mtime)))) {
+		if((plugin = isMusic(getSongUrl(song),&(song->mtime)))) {
 		        song->tag = plugin->tagDupFunc(
-                                        rmp2amp(utf8ToFsCharset(utf8url)));
+                                        rmp2amp(getSongUrl(song)));
                 }
 		if(!song->tag || song->tag->time<0) return -1;
 	}
@@ -290,10 +289,41 @@ int updateSongInfo(Song * song) {
 Song * songDup(Song * song) {
 	Song * ret = malloc(sizeof(Song));
 
-	ret->utf8url = strdup(song->utf8url);
+	ret->url = strdup(song->url);
 	ret->mtime = song->mtime;
 	ret->tag = mpdTagDup(song->tag);
 	ret->type = song->type;
+	ret->parentDir = song->parentDir;
 
 	return ret;
 }
+
+char * getSongUrl(Song * song) {
+	static char * buffer = NULL;
+	static int bufferSize = 0;
+	static Song * lastSong = NULL;
+	int slen;
+	int dlen;
+	int size;
+
+	if(!song->parentDir || !song->parentDir->utf8name) return song->url;
+
+	/* be careful with this! */
+	if(song == lastSong) return buffer;
+
+	slen = strlen(song->url);
+	dlen = strlen(song->parentDir->utf8name);
+
+	size = slen+dlen+2;
+
+	if(size > bufferSize) {
+		buffer = realloc(buffer, size);
+		bufferSize = size;
+	}
+
+	strcpy(buffer, song->parentDir->utf8name);
+	buffer[dlen] = '/';
+	strcpy(buffer+dlen+1, song->url);
+
+	return buffer;
+}
diff --git a/src/song.h b/src/song.h
index 45f9e792..81e5b550 100644
--- a/src/song.h
+++ b/src/song.h
@@ -45,7 +45,7 @@ typedef List SongList;
 
 Song * newNullSong();
 
-Song * newSong(char * utf8url, int songType, struct _Directory * parentDir);
+Song * newSong(char * url, int songType, struct _Directory * parentDir);
 
 void freeSong(Song *);
 
@@ -55,7 +55,7 @@ SongList * newSongList();
 
 void freeSongList(SongList * list);
 
-Song * addSongToList(SongList * list, char * key, char * utf8file, 
+Song * addSongToList(SongList * list, char * url, char * utf8path,
 		int songType, struct _Directory * parentDir);
 
 int printSongInfo(FILE * fp, Song * song);
@@ -64,7 +64,8 @@ int printSongInfoFromList(FILE * fp, SongList * list);
 
 void writeSongInfoFromList(FILE * fp, SongList * list);
 
-void readSongInfoIntoList(FILE * fp, SongList * list);
+void readSongInfoIntoList(FILE * fp, SongList * list, 
+		struct _Directory * parent);
 
 int updateSongInfo(Song * song);
 
@@ -72,4 +73,6 @@ Song * songDup(Song * song);
 
 void printSongUrl(FILE * fp, Song * song);
 
+char * getSongUrl(Song * song);
+
 #endif