Better header checking. Only manually remove incorrect entries. Fixed
a bug and performance issue with find entry from disk by filename. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10291 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Miika Pekkarinen
parent
b34c8fcaf2
commit
29fa15f521
1 changed files with 95 additions and 92 deletions
179
apps/tagcache.c
179
apps/tagcache.c
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@ -211,6 +211,37 @@ bool tagcache_is_sorted_tag(int type)
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return false;
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}
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static int open_tag_fd(struct tagcache_header *hdr, int tag, bool write)
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{
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int fd;
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char buf[MAX_PATH];
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if (tagcache_is_numeric_tag(tag) || tag < 0 || tag >= TAG_COUNT)
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return -1;
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snprintf(buf, sizeof buf, TAGCACHE_FILE_INDEX, tag);
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fd = open(buf, write ? O_RDWR : O_RDONLY);
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if (fd < 0)
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{
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logf("tag file open failed: %d", tag);
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stat.ready = false;
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return fd;
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}
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/* Check the header. */
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read(fd, hdr, sizeof(struct tagcache_header));
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if (hdr->magic != TAGCACHE_MAGIC)
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{
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logf("header error");
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stat.ready = false;
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close(fd);
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return -2;
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}
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return fd;
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}
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#if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
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static long find_entry_ram(const char *filename,
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const struct dircache_entry *dc)
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@ -266,6 +297,7 @@ static long find_entry_ram(const char *filename,
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static long find_entry_disk(const char *filename)
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{
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struct tagcache_header tch;
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static long last_pos = -1;
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long pos_history[POS_HISTORY_COUNT];
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long pos_history_idx = 0;
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@ -276,11 +308,14 @@ static long find_entry_disk(const char *filename)
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int i;
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int pos = -1;
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if (!stat.ready)
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return -2;
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fd = filenametag_fd;
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if (fd < 0)
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{
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last_pos = -1;
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if ( (fd = open(TAGCACHE_FILE_MASTER, O_RDONLY)) < 0)
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if ( (fd = open_tag_fd(&tch, tag_filename, false)) < 0)
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return -1;
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}
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@ -288,8 +323,6 @@ static long find_entry_disk(const char *filename)
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if (last_pos > 0)
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lseek(fd, last_pos, SEEK_SET);
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else
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lseek(fd, sizeof(struct master_header), SEEK_SET);
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while (true)
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{
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@ -374,6 +407,9 @@ bool tagcache_find_index(struct tagcache_search *tcs, const char *filename)
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{
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int idx_id;
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if (!stat.ready)
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return false;
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idx_id = find_index(filename);
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if (idx_id < 0)
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return false;
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@ -444,6 +480,9 @@ long tagcache_get_numeric(const struct tagcache_search *tcs, int tag)
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{
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struct index_entry idx;
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if (!stat.ready)
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return false;
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if (!tagcache_is_numeric_tag(tag))
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return -1;
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@ -672,6 +711,7 @@ static void remove_files(void)
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}
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}
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static int open_master_fd(struct master_header *hdr, bool write)
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{
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int fd;
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@ -691,7 +731,6 @@ static int open_master_fd(struct master_header *hdr, bool write)
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logf("header error");
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stat.ready = false;
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close(fd);
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remove_files();
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return -2;
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}
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@ -702,7 +741,6 @@ bool tagcache_search(struct tagcache_search *tcs, int tag)
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{
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struct tagcache_header tag_hdr;
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struct master_header master_hdr;
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char buf[MAX_PATH];
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int i;
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if (tcs->valid)
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@ -737,21 +775,9 @@ bool tagcache_search(struct tagcache_search *tcs, int tag)
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if (tagcache_is_numeric_tag(tcs->type))
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return true;
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snprintf(buf, sizeof buf, TAGCACHE_FILE_INDEX, tcs->type);
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tcs->idxfd[tcs->type] = open(buf, O_RDONLY);
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tcs->idxfd[tcs->type] = open_tag_fd(&tag_hdr, tcs->type, false);
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if (tcs->idxfd[tcs->type] < 0)
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{
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logf("failed to open index");
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return false;
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}
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/* Check the header. */
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if (read(tcs->idxfd[tcs->type], &tag_hdr, sizeof(struct tagcache_header)) !=
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sizeof(struct tagcache_header) || tag_hdr.magic != TAGCACHE_MAGIC)
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{
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logf("incorrect header");
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return false;
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}
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tcs->masterfd = open_master_fd(&master_hdr, false);
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@ -829,7 +855,7 @@ static bool get_next(struct tagcache_search *tcs)
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static char buf[MAX_PATH];
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struct tagfile_entry entry;
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if (!tcs->valid)
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if (!tcs->valid || !stat.ready)
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return false;
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if (tcs->idxfd[tcs->type] < 0 && !tagcache_is_numeric_tag(tcs->type)
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@ -1087,6 +1113,9 @@ bool tagcache_fill_tags(struct mp3entry *id3, const char *filename)
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struct index_entry *entry;
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int idx_id;
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if (!stat.ready)
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return false;
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/* Find the corresponding entry in tagcache. */
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idx_id = find_entry_ram(filename, NULL);
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if (idx_id < 0 || !stat.ramcache)
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@ -1155,10 +1184,13 @@ static void add_tagcache(const char *path)
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}
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else
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#endif
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{
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if (filenametag_fd >= 0)
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{
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if (find_entry_disk(path) >= 0)
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return ;
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}
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}
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fd = open(path, O_RDONLY);
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if (fd < 0)
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@ -1563,20 +1595,10 @@ static int build_index(int index_type, struct tagcache_header *h, int tmpfd)
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memset(lookup, 0, LOOKUP_BUF_DEPTH * sizeof(void **));
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/* Open the index file, which contains the tag names. */
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snprintf(buf, sizeof buf, TAGCACHE_FILE_INDEX, index_type);
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fd = open(buf, O_RDWR);
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fd = open_tag_fd(&tch, index_type, true);
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if (fd >= 0)
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{
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/* Read the header. */
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if (read(fd, &tch, sizeof(struct tagcache_header)) !=
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sizeof(struct tagcache_header) || tch.magic != TAGCACHE_MAGIC)
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{
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logf("header error");
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close(fd);
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return -2;
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}
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/**
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* If tag file contains unique tags (sorted index), we will load
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* it entirely into memory so we can resort it later for use with
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@ -1991,7 +2013,6 @@ static bool commit(void)
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{
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logf("incorrect header");
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close(tmpfd);
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remove_files();
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remove(TAGCACHE_FILE_TEMP);
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return false;
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}
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@ -2159,6 +2180,9 @@ static bool update_current_serial(long serial)
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long tagcache_increase_serial(void)
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{
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if (!stat.ready)
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return -2;
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if (!update_current_serial(current_serial + 1))
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return -1;
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@ -2174,6 +2198,9 @@ static bool modify_numeric_entry(int masterfd, int idx_id, int tag, long data)
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{
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struct index_entry idx;
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if (!stat.ready)
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return false;
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if (!tagcache_is_numeric_tag(tag))
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return false;
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@ -2378,6 +2405,9 @@ bool tagcache_import_changelog(void)
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char buf[512];
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int pos = 0;
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if (!stat.ready)
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return false;
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clfd = open(TAGCACHE_FILE_CHANGELOG, O_RDONLY);
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if (clfd < 0)
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{
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@ -2444,6 +2474,9 @@ bool tagcache_create_changelog(struct tagcache_search *tcs)
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int clfd;
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int i, j;
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if (!stat.ready)
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return false;
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if (!tagcache_search(tcs, tag_filename))
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return false;
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@ -2621,33 +2654,19 @@ static bool delete_entry(long idx_id)
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#ifdef HAVE_TC_RAMCACHE
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static bool allocate_tagcache(void)
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{
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int rc, len;
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int fd;
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hdr = NULL;
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fd = open(TAGCACHE_FILE_MASTER, O_RDONLY);
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if (fd < 0)
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{
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logf("no tagcache file found.");
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return false;
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}
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/* Load the header. */
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hdr = (struct ramcache_header *)(((long)audiobuf & ~0x03) + 0x04);
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memset(hdr, 0, sizeof(struct ramcache_header));
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len = sizeof(struct master_header);
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rc = read(fd, &hdr->h, len);
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close(fd);
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if (hdr->h.tch.magic != TAGCACHE_MAGIC || rc != len)
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if ( (fd = open_master_fd(&hdr->h, false)) < 0)
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{
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logf("incorrect header");
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remove_files();
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hdr = NULL;
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return false;
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}
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close(fd);
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hdr->indices = (struct index_entry *)(hdr + 1);
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/**
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@ -2734,26 +2753,12 @@ static bool load_tagcache(void)
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p = (char *)((long)p & ~0x03) + 0x04;
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hdr->tags[tag] = p;
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snprintf(buf, sizeof buf, TAGCACHE_FILE_INDEX, tag);
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fd = open(buf, O_RDONLY);
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if (fd < 0)
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{
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logf("%s open fail", buf);
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return false;
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}
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/* Check the header. */
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tch = (struct tagcache_header *)p;
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rc = read(fd, tch, sizeof(struct tagcache_header));
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p += rc;
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if (rc != sizeof(struct tagcache_header) ||
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tch->magic != TAGCACHE_MAGIC)
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{
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logf("incorrect header");
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close(fd);
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p += sizeof(struct tagcache_header);
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if ( (fd = open_tag_fd(tch, tag, false)) < 0)
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return false;
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}
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for (hdr->entry_count[tag] = 0;
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hdr->entry_count[tag] < tch->entry_count;
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@ -3004,7 +3009,6 @@ static void build_tagcache(void)
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{
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struct tagcache_header header;
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bool ret;
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char buf[MAX_PATH];
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curpath[0] = '\0';
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data_size = 0;
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@ -3028,20 +3032,7 @@ static void build_tagcache(void)
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return ;
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}
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snprintf(buf, sizeof buf, TAGCACHE_FILE_INDEX, tag_filename);
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filenametag_fd = open(buf, O_RDONLY);
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if (filenametag_fd >= 0)
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{
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if (read(filenametag_fd, &header, sizeof(struct tagcache_header)) !=
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sizeof(struct tagcache_header) || header.magic != TAGCACHE_MAGIC)
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{
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logf("header error");
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close(filenametag_fd);
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filenametag_fd = -1;
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}
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}
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filenametag_fd = open_tag_fd(&header, tag_filename, false);
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cpu_boost(true);
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@ -3095,18 +3086,17 @@ static void load_ramcache(void)
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stat.ramcache = load_tagcache();
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if (!stat.ramcache)
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{
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hdr = NULL;
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remove_files();
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}
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cpu_boost(false);
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}
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#endif
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static bool check_master_fd(void)
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static bool check_all_headers(void)
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{
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struct master_header myhdr;
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struct tagcache_header tch;
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int tag;
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int fd;
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if ( (fd = open_master_fd(&myhdr, false)) < 0)
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@ -3115,6 +3105,17 @@ static bool check_master_fd(void)
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close(fd);
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current_serial = myhdr.serial;
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for (tag = 0; tag < TAG_COUNT; tag++)
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{
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if (tagcache_is_numeric_tag(tag))
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continue;
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if ( (fd = open_tag_fd(&tch, tag, false)) < 0)
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return false;
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close(fd);
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}
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return true;
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}
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@ -3137,11 +3138,13 @@ static void tagcache_thread(void)
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#endif
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cpu_boost(false);
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stat.ready = check_master_fd();
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stat.initialized = true;
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/* Don't delay bootup with the header check but do it on background. */
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sleep(HZ);
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stat.ready = check_all_headers();
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while (1)
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{
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queue_wait_w_tmo(&tagcache_queue, &ev, HZ);
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@ -3163,7 +3166,7 @@ static void tagcache_thread(void)
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break ;
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case SYS_TIMEOUT:
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if (check_done)
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if (check_done || !stat.ready)
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break ;
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#ifdef HAVE_TC_RAMCACHE
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