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authorMax Kellermann <max@duempel.org>2008-10-08 11:07:35 +0200
committerMax Kellermann <max@duempel.org>2008-10-08 11:07:35 +0200
commit8a50e8a2663b5afd2fb3c80ea3424f3e68e14695 (patch)
treed20a5c381a452386cee06ed5ab16d4b4124f9071 /src/directory.c
parentba5c9b0375b84456553b9b57cb68cb204c1d9418 (diff)
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directory: moved code to database.c
Taming the directory.c monster, part II: move the database management stuff to database. directory.c should only contain code which works on directory objects.
Diffstat (limited to 'src/directory.c')
-rw-r--r--src/directory.c318
1 files changed, 10 insertions, 308 deletions
diff --git a/src/directory.c b/src/directory.c
index b8e6fa1f0..c2fa229f5 100644
--- a/src/directory.c
+++ b/src/directory.c
@@ -17,44 +17,15 @@
*/
#include "directory.h"
+#include "database.h"
#include "song.h"
-#include "conf.h"
#include "log.h"
-#include "ls.h"
#include "path.h"
-#include "stats.h"
#include "utils.h"
#include "client.h"
-#include "dbUtils.h"
#include "song_print.h"
#include "song_save.h"
#include "dirvec.h"
-#include "update.h"
-
-#define DIRECTORY_DIR "directory: "
-#define DIRECTORY_MTIME "mtime: " /* DEPRECATED, noop-read-only */
-#define DIRECTORY_BEGIN "begin: "
-#define DIRECTORY_END "end: "
-#define DIRECTORY_INFO_BEGIN "info_begin"
-#define DIRECTORY_INFO_END "info_end"
-#define DIRECTORY_MPD_VERSION "mpd_version: "
-#define DIRECTORY_FS_CHARSET "fs_charset: "
-
-static struct directory *music_root;
-
-static time_t directory_dbModTime;
-
-static void deleteEmptyDirectoriesInDirectory(struct directory * directory);
-
-static char *getDbFile(void)
-{
- ConfigParam *param = parseConfigFilePath(CONF_DB_FILE, 1);
-
- assert(param);
- assert(param->value);
-
- return param->value;
-}
struct directory *
newDirectory(const char *dirname, struct directory * parent)
@@ -82,7 +53,8 @@ freeDirectory(struct directory * directory)
/*getDirectoryPath(NULL); */
}
-static void deleteEmptyDirectoriesInDirectory(struct directory * directory)
+void
+deleteEmptyDirectoriesInDirectory(struct directory *directory)
{
int i;
struct dirvec *dv = &directory->children;
@@ -96,20 +68,7 @@ static void deleteEmptyDirectoriesInDirectory(struct directory * directory)
dirvec_destroy(dv);
}
-void directory_finish(void)
-{
- freeDirectory(music_root);
-}
-
struct directory *
-directory_get_root(void)
-{
- assert(music_root != NULL);
-
- return music_root;
-}
-
-static struct directory *
getSubDirectory(struct directory * directory, const char *name)
{
struct directory *cur = directory;
@@ -142,16 +101,8 @@ getSubDirectory(struct directory * directory, const char *name)
return found;
}
-struct directory *
-getDirectory(const char *name)
-{
- if (name == NULL)
- return music_root;
-
- return getSubDirectory(music_root, name);
-}
-
-static int printDirectoryList(struct client *client, struct dirvec *dv)
+static int
+printDirectoryList(struct client *client, const struct dirvec *dv)
{
size_t i;
@@ -163,13 +114,9 @@ static int printDirectoryList(struct client *client, struct dirvec *dv)
return 0;
}
-int printDirectoryInfo(struct client *client, const char *name)
+int
+directory_print(struct client *client, const struct directory *directory)
{
- struct directory *directory;
-
- if ((directory = getDirectory(name)) == NULL)
- return -1;
-
printDirectoryList(client, &directory->children);
songvec_print(client, &directory->songs);
@@ -177,7 +124,7 @@ int printDirectoryInfo(struct client *client, const char *name)
}
/* TODO error checking */
-static int
+int
writeDirectoryInfo(FILE * fp, struct directory * directory)
{
struct dirvec *children = &directory->children;
@@ -211,7 +158,7 @@ writeDirectoryInfo(FILE * fp, struct directory * directory)
return 0;
}
-static void
+void
readDirectoryInfo(FILE * fp, struct directory * directory)
{
char buffer[MPD_PATH_MAX * 2];
@@ -263,190 +210,7 @@ sortDirectory(struct directory * directory)
sortDirectory(dv->base[i]);
}
-int checkDirectoryDB(void)
-{
- struct stat st;
- char *dbFile = getDbFile();
-
- /* Check if the file exists */
- if (access(dbFile, F_OK)) {
- /* If the file doesn't exist, we can't check if we can write
- * it, so we are going to try to get the directory path, and
- * see if we can write a file in that */
- char dirPath[MPD_PATH_MAX];
- parent_path(dirPath, dbFile);
- if (*dirPath == '\0')
- strcpy(dirPath, "/");
-
- /* Check that the parent part of the path is a directory */
- if (stat(dirPath, &st) < 0) {
- ERROR("Couldn't stat parent directory of db file "
- "\"%s\": %s\n", dbFile, strerror(errno));
- return -1;
- }
-
- if (!S_ISDIR(st.st_mode)) {
- ERROR("Couldn't create db file \"%s\" because the "
- "parent path is not a directory\n", dbFile);
- return -1;
- }
-
- /* Check if we can write to the directory */
- if (access(dirPath, R_OK | W_OK)) {
- ERROR("Can't create db file in \"%s\": %s\n", dirPath,
- strerror(errno));
- return -1;
- }
-
- return 0;
- }
-
- /* Path exists, now check if it's a regular file */
- if (stat(dbFile, &st) < 0) {
- ERROR("Couldn't stat db file \"%s\": %s\n", dbFile,
- strerror(errno));
- return -1;
- }
-
- if (!S_ISREG(st.st_mode)) {
- ERROR("db file \"%s\" is not a regular file\n", dbFile);
- return -1;
- }
-
- /* And check that we can write to it */
- if (access(dbFile, R_OK | W_OK)) {
- ERROR("Can't open db file \"%s\" for reading/writing: %s\n",
- dbFile, strerror(errno));
- return -1;
- }
-
- return 0;
-}
-
-int writeDirectoryDB(void)
-{
- FILE *fp;
- char *dbFile = getDbFile();
- struct stat st;
-
- DEBUG("removing empty directories from DB\n");
- deleteEmptyDirectoriesInDirectory(music_root);
-
- DEBUG("sorting DB\n");
-
- sortDirectory(music_root);
-
- DEBUG("writing DB\n");
-
- fp = fopen(dbFile, "w");
- if (!fp) {
- ERROR("unable to write to db file \"%s\": %s\n",
- dbFile, strerror(errno));
- return -1;
- }
-
- /* block signals when writing the db so we don't get a corrupted db */
- fprintf(fp, "%s\n", DIRECTORY_INFO_BEGIN);
- fprintf(fp, "%s%s\n", DIRECTORY_MPD_VERSION, VERSION);
- fprintf(fp, "%s%s\n", DIRECTORY_FS_CHARSET, getFsCharset());
- fprintf(fp, "%s\n", DIRECTORY_INFO_END);
-
- if (writeDirectoryInfo(fp, music_root) < 0) {
- ERROR("Failed to write to database file: %s\n",
- strerror(errno));
- while (fclose(fp) && errno == EINTR);
- return -1;
- }
-
- while (fclose(fp) && errno == EINTR);
-
- if (stat(dbFile, &st) == 0)
- directory_dbModTime = st.st_mtime;
-
- return 0;
-}
-
-int readDirectoryDB(void)
-{
- FILE *fp = NULL;
- char *dbFile = getDbFile();
- struct stat st;
-
- if (!music_root)
- music_root = newDirectory(NULL, NULL);
- while (!(fp = fopen(dbFile, "r")) && errno == EINTR) ;
- if (fp == NULL) {
- ERROR("unable to open db file \"%s\": %s\n",
- dbFile, strerror(errno));
- return -1;
- }
-
- /* get initial info */
- {
- char buffer[100];
- int bufferSize = 100;
- int foundFsCharset = 0;
- int foundVersion = 0;
-
- if (!myFgets(buffer, bufferSize, fp))
- FATAL("Error reading db, fgets\n");
- if (0 == strcmp(DIRECTORY_INFO_BEGIN, buffer)) {
- while (myFgets(buffer, bufferSize, fp) &&
- 0 != strcmp(DIRECTORY_INFO_END, buffer)) {
- if (!prefixcmp(buffer, DIRECTORY_MPD_VERSION))
- {
- if (foundVersion)
- FATAL("already found version in db\n");
- foundVersion = 1;
- } else if (!prefixcmp(buffer,
- DIRECTORY_FS_CHARSET)) {
- char *fsCharset;
- char *tempCharset;
-
- if (foundFsCharset)
- FATAL("already found fs charset in db\n");
-
- foundFsCharset = 1;
-
- fsCharset = &(buffer[strlen(DIRECTORY_FS_CHARSET)]);
- if ((tempCharset = getConfigParamValue(CONF_FS_CHARSET))
- && strcmp(fsCharset, tempCharset)) {
- WARNING("Using \"%s\" for the "
- "filesystem charset "
- "instead of \"%s\"\n",
- fsCharset, tempCharset);
- WARNING("maybe you need to "
- "recreate the db?\n");
- setFsCharset(fsCharset);
- }
- } else {
- FATAL("directory: unknown line in db info: %s\n",
- buffer);
- }
- }
- } else {
- ERROR("db info not found in db file\n");
- ERROR("you should recreate the db using --create-db\n");
- while (fclose(fp) && errno == EINTR) ;
- return -1;
- }
- }
-
- DEBUG("reading DB\n");
-
- readDirectoryInfo(fp, music_root);
- while (fclose(fp) && errno == EINTR) ;
-
- stats.numberOfSongs = countSongsIn(NULL);
- stats.dbPlayTime = sumSongTimesIn(NULL);
-
- if (stat(dbFile, &st) == 0)
- directory_dbModTime = st.st_mtime;
-
- return 0;
-}
-
-static int
+int
traverseAllInSubDirectory(struct directory * directory,
int (*forEachSong) (struct song *, void *),
int (*forEachDir) (struct directory *, void *),
@@ -471,65 +235,3 @@ traverseAllInSubDirectory(struct directory * directory,
return err;
}
-
-int
-traverseAllIn(const char *name,
- int (*forEachSong) (struct song *, void *),
- int (*forEachDir) (struct directory *, void *), void *data)
-{
- struct directory *directory;
-
- if ((directory = getDirectory(name)) == NULL) {
- struct song *song;
- if ((song = getSongFromDB(name)) && forEachSong) {
- return forEachSong(song, data);
- }
- return -1;
- }
-
- return traverseAllInSubDirectory(directory, forEachSong, forEachDir,
- data);
-}
-
-void directory_init(void)
-{
- music_root = newDirectory(NULL, NULL);
- updateDirectory(music_root);
- stats.numberOfSongs = countSongsIn(NULL);
- stats.dbPlayTime = sumSongTimesIn(NULL);
-}
-
-struct song *
-getSongFromDB(const char *file)
-{
- struct song *song = NULL;
- struct directory *directory;
- char *dir = NULL;
- char *duplicated = xstrdup(file);
- char *shortname = strrchr(duplicated, '/');
-
- DEBUG("get song: %s\n", file);
-
- if (!shortname) {
- shortname = duplicated;
- } else {
- *shortname = '\0';
- ++shortname;
- dir = duplicated;
- }
-
- if (!(directory = getDirectory(dir)))
- goto out;
- if (!(song = songvec_find(&directory->songs, shortname)))
- goto out;
- assert(song->parent == directory);
-
-out:
- free(duplicated);
- return song;
-}
-
-time_t getDbModTime(void)
-{
- return directory_dbModTime;
-}