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Tagcache update: Support removal of entries and no longer the need for

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dircache to load tagcache in ram (however, dircache with tagcache is
still strongly recommended).


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10192 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Miika Pekkarinen 2006-07-10 16:22:03 +00:00
parent dae39989db
commit 9cd5c3e119
9 changed files with 465 additions and 118 deletions
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46
apps/lang/english.lang
View file

@ -1676,7 +1676,7 @@
</phrase>
<phrase>
id: LANG_TAGCACHE
desc: in tag cache settings
desc: in settings menu
user:
<source>
*: "Tag Cache"
@ -1690,16 +1690,16 @@
</phrase>
<phrase>
id: LANG_TAGCACHE_DISK
desc: in tag cache settings
desc:
user:
<source>
*: "Keep on Disk"
*: ""
</source>
<dest>
*: "Keep on Disk"
*: ""
</dest>
<voice>
*: "Keep on Disk"
*: ""
</voice>
</phrase>
<phrase>
@ -1717,17 +1717,17 @@
</voice>
</phrase>
<phrase>
id: LANG_TAGCACHE_FORCE_UPDATE
id: LANG_TAGCACHE_INITIALIZE
desc: in tag cache settings
user:
<source>
*: "Force Tag Cache Update"
*: "Initialize now"
</source>
<dest>
*: "Force Tag Cache Update"
*: "Initialize now"
</dest>
<voice>
*: "Force Tag Cache Update"
*: "Initialize now"
</voice>
</phrase>
<phrase>
@ -8529,3 +8529,31 @@
*: "Remote Scrolling Options"
</voice>
</phrase>
<phrase>
id: LANG_TAGCACHE_UPDATE
desc: in tag cache settings
user:
<source>
*: "Update now"
</source>
<dest>
*: "Update now"
</dest>
<voice>
*: "Update now"
</voice>
</phrase>
<phrase>
id: LANG_TAGCACHE_AUTOUPDATE
desc: in tag cache settings
user:
<source>
*: "Auto update"
</source>
<dest>
*: "Auto update"
</dest>
<voice>
*: "Auto update"
</voice>
</phrase>

6
apps/settings.c
View file

@ -94,7 +94,7 @@ const char rec_base_directory[] = REC_BASE_DIR;
#include "dsp.h"
#endif
#define CONFIG_BLOCK_VERSION 44
#define CONFIG_BLOCK_VERSION 45
#define CONFIG_BLOCK_SIZE 512
#define RTC_BLOCK_SIZE 44
@ -554,8 +554,11 @@ static const struct bit_entry hd_bits[] =
#ifdef HAVE_DIRCACHE
{1, S_O(dircache), false, "dircache", off_on },
{22, S_O(dircache_size), 0, NULL, NULL },
#endif
#ifdef HAVE_TC_RAMCACHE
{1, S_O(tagcache_ram), 0, "tagcache_ram", off_on },
#endif
{1, S_O(tagcache_autoupdate), 0, "tagcache_autoupdate", off_on },
{4, S_O(default_codepage), 0, "default codepage",
"iso8859-1,iso8859-7,iso8859-8,cp1251,iso8859-11,cp1256,iso8859-9,iso8859-2,sjis,gb2312,ksx1001,big5,utf-8,cp1256" },
@ -563,6 +566,7 @@ static const struct bit_entry hd_bits[] =
{1, S_O(warnon_erase_dynplaylist), false,
"warn when erasing dynamic playlist", off_on },
/* If values are just added to the end, no need to bump the version. */
/* new stuff to be added at the end */

46
apps/settings_menu.c
View file

@ -1520,18 +1520,51 @@ static bool dircache(void)
return result;
}
#endif /* HAVE_DIRCACHE */
#ifdef HAVE_TC_RAMCACHE
static bool tagcache_ram(void)
{
bool result = set_bool_options(str(LANG_TAGCACHE),
bool result = set_bool_options(str(LANG_TAGCACHE_RAM),
&global_settings.tagcache_ram,
STR(LANG_TAGCACHE_RAM),
STR(LANG_TAGCACHE_DISK),
STR(LANG_SET_BOOL_YES),
STR(LANG_SET_BOOL_NO),
NULL);
return result;
}
#endif /* HAVE_DIRCACHE */
#endif
static bool tagcache_autoupdate(void)
{
bool rc = set_bool_options(str(LANG_TAGCACHE_AUTOUPDATE),
&global_settings.tagcache_autoupdate,
STR(LANG_ON),
STR(LANG_OFF),
NULL);
return rc;
}
static bool tagcache_settings_menu(void)
{
int m;
bool result;
static const struct menu_item items[] = {
#ifdef HAVE_TC_RAMCACHE
{ ID2P(LANG_TAGCACHE_RAM), tagcache_ram },
#endif
{ ID2P(LANG_TAGCACHE_AUTOUPDATE), tagcache_autoupdate },
{ ID2P(LANG_TAGCACHE_INITIALIZE), tagcache_rebuild },
{ ID2P(LANG_TAGCACHE_UPDATE), tagcache_update },
};
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
NULL, NULL, NULL);
result = menu_run(m);
menu_exit(m);
return result;
}
static bool playback_settings_menu(void)
{
@ -1641,10 +1674,7 @@ static bool fileview_settings_menu(void)
{ ID2P(LANG_FILTER), dir_filter },
{ ID2P(LANG_FOLLOW), browse_current },
{ ID2P(LANG_SHOW_ICONS), show_icons },
#ifdef HAVE_DIRCACHE
{ ID2P(LANG_TAGCACHE), tagcache_ram },
#endif
{ ID2P(LANG_TAGCACHE_FORCE_UPDATE), tagcache_force_update },
{ ID2P(LANG_TAGCACHE), tagcache_settings_menu},
};
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,

436
apps/tagcache.c
View file

@ -67,7 +67,8 @@ static struct tagcache_stat stat;
enum tagcache_queue {
Q_STOP_SCAN = 0,
Q_START_SCAN,
Q_FORCE_UPDATE,
Q_UPDATE,
Q_REBUILD,
};
@ -177,7 +178,7 @@ bool tagcache_is_sorted_tag(int type)
return false;
}
#ifdef HAVE_TC_RAMCACHE
#if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
static struct index_entry *find_entry_ram(const char *filename,
const struct dircache_entry *dc)
{
@ -272,7 +273,7 @@ static struct index_entry *find_entry_disk(const char *filename, bool retrieve)
if (tfe.tag_length >= (long)sizeof(buf))
{
logf("too long tag");
logf("too long tag #1");
close(fd);
last_pos = -1;
return NULL;
@ -487,6 +488,8 @@ static bool build_lookup_list(struct tagcache_search *tcs)
{
tcs->seek_list[tcs->seek_list_count] =
hdr->indices[i].tag_seek[tcs->type];
tcs->seek_flags[tcs->seek_list_count] =
hdr->indices[i].flag;
tcs->seek_list_count++;
}
}
@ -503,6 +506,10 @@ static bool build_lookup_list(struct tagcache_search *tcs)
while (read(tcs->masterfd, &entry, sizeof(struct index_entry)) ==
sizeof(struct index_entry))
{
/* Check if entry has been deleted. */
if (entry.flag & FLAG_DELETED)
continue;
if (tcs->seek_list_count == SEEK_LIST_SIZE)
break ;
@ -538,6 +545,10 @@ static bool build_lookup_list(struct tagcache_search *tcs)
}
read(fd, str, tfe.tag_length);
/* Check if entry has been deleted. */
if (str[0] == '\0')
break;
}
if (!check_against_clause(seek, str, tcs->clause[i]))
@ -559,6 +570,7 @@ static bool build_lookup_list(struct tagcache_search *tcs)
{
tcs->seek_list[tcs->seek_list_count] =
entry.tag_seek[tcs->type];
tcs->seek_flags[tcs->seek_list_count] = entry.flag;
tcs->seek_list_count++;
}
@ -582,7 +594,6 @@ bool tagcache_search(struct tagcache_search *tcs, int tag)
return false;
tcs->position = sizeof(struct tagcache_header);
tcs->fd = -1;
tcs->type = tag;
tcs->seek_pos = 0;
tcs->seek_list_count = 0;
@ -608,17 +619,15 @@ bool tagcache_search(struct tagcache_search *tcs, int tag)
return true;
snprintf(buf, sizeof buf, TAGCACHE_FILE_INDEX, tcs->type);
tcs->fd = open(buf, O_RDONLY);
if (tcs->fd < 0)
tcs->idxfd[tcs->type] = open(buf, O_RDONLY);
if (tcs->idxfd[tcs->type] < 0)
{
logf("failed to open index");
return false;
}
tcs->idxfd[tcs->type] = tcs->fd;
/* Check the header. */
if (read(tcs->fd, &h, sizeof(struct tagcache_header)) !=
if (read(tcs->idxfd[tcs->type], &h, sizeof(struct tagcache_header)) !=
sizeof(struct tagcache_header) || h.magic != TAGCACHE_MAGIC)
{
logf("incorrect header");
@ -685,7 +694,30 @@ bool tagcache_search_add_clause(struct tagcache_search *tcs,
return true;
}
bool tagcache_get_next(struct tagcache_search *tcs)
static bool open_files(struct tagcache_search *tcs)
{
if (tcs->idxfd[tcs->type] < 0)
{
char fn[MAX_PATH];
snprintf(fn, sizeof fn, TAGCACHE_FILE_INDEX, tcs->type);
tcs->idxfd[tcs->type] = open(fn, O_RDONLY);
}
if (tcs->idxfd[tcs->type] < 0)
{
logf("File not open!");
return false;
}
return true;
}
#define TAG_FILENAME_RAM(tcs) ((tcs->type == tag_filename) \
? (tcs->seek_flags[tcs->seek_list_count] \
& FLAG_DIRCACHE) : 1)
static bool get_next(struct tagcache_search *tcs)
{
static char buf[MAX_PATH];
struct tagfile_entry entry;
@ -693,7 +725,7 @@ bool tagcache_get_next(struct tagcache_search *tcs)
if (!tcs->valid)
return false;
if (tcs->fd < 0 && !tagcache_is_numeric_tag(tcs->type)
if (tcs->idxfd[tcs->type] < 0 && !tagcache_is_numeric_tag(tcs->type)
#ifdef HAVE_TC_RAMCACHE
&& !tcs->ramsearch
#endif
@ -718,15 +750,20 @@ bool tagcache_get_next(struct tagcache_search *tcs)
tcs->seek_list_count--;
/* Seek stream to the correct position and continue to direct fetch. */
if (!tcs->ramsearch)
lseek(tcs->fd, tcs->seek_list[tcs->seek_list_count], SEEK_SET);
if (!tcs->ramsearch || !TAG_FILENAME_RAM(tcs))
{
if (!open_files(tcs))
return false;
lseek(tcs->idxfd[tcs->type], tcs->seek_list[tcs->seek_list_count], SEEK_SET);
}
else
tcs->position = tcs->seek_list[tcs->seek_list_count];
}
/* Direct fetch. */
#ifdef HAVE_TC_RAMCACHE
if (tcs->ramsearch)
if (tcs->ramsearch && TAG_FILENAME_RAM(tcs))
{
struct tagfile_entry *ep;
@ -738,6 +775,7 @@ bool tagcache_get_next(struct tagcache_search *tcs)
tcs->entry_count--;
tcs->result_seek = tcs->position;
# ifdef HAVE_DIRCACHE
if (tcs->type == tag_filename)
{
dircache_copy_path((struct dircache_entry *)tcs->position,
@ -747,11 +785,12 @@ bool tagcache_get_next(struct tagcache_search *tcs)
return true;
}
# endif
ep = (struct tagfile_entry *)&hdr->tags[tcs->type][tcs->position];
tcs->position += sizeof(struct tagfile_entry) + ep->tag_length;
tcs->result = ep->tag_data;
tcs->result_len = ep->tag_length;
tcs->result_len = strlen(tcs->result) + 1;
tcs->idx_id = ep->idx_id;
if (!tagcache_is_unique_tag(tcs->type))
@ -762,8 +801,11 @@ bool tagcache_get_next(struct tagcache_search *tcs)
else
#endif
{
tcs->result_seek = lseek(tcs->fd, 0, SEEK_CUR);
if (read(tcs->fd, &entry, sizeof(struct tagfile_entry)) !=
if (!open_files(tcs))
return false;
tcs->result_seek = lseek(tcs->idxfd[tcs->type], 0, SEEK_CUR);
if (read(tcs->idxfd[tcs->type], &entry, sizeof(struct tagfile_entry)) !=
sizeof(struct tagfile_entry))
{
/* End of data. */
@ -775,11 +817,11 @@ bool tagcache_get_next(struct tagcache_search *tcs)
if (entry.tag_length > (long)sizeof(buf))
{
tcs->valid = false;
logf("too long tag");
logf("too long tag #2");
return false;
}
if (read(tcs->fd, buf, entry.tag_length) != entry.tag_length)
if (read(tcs->idxfd[tcs->type], buf, entry.tag_length) != entry.tag_length)
{
tcs->valid = false;
logf("read error");
@ -787,7 +829,7 @@ bool tagcache_get_next(struct tagcache_search *tcs)
}
tcs->result = buf;
tcs->result_len = entry.tag_length;
tcs->result_len = strlen(tcs->result) + 1;
tcs->idx_id = entry.idx_id;
if (!tagcache_is_unique_tag(tcs->type))
tcs->result_seek = tcs->idx_id;
@ -795,6 +837,17 @@ bool tagcache_get_next(struct tagcache_search *tcs)
return true;
}
bool tagcache_get_next(struct tagcache_search *tcs)
{
while (get_next(tcs))
{
if (tcs->result_len > 1)
return true;
}
return false;
}
bool tagcache_retrieve(struct tagcache_search *tcs, int idxid,
char *buf, long size)
{
@ -809,38 +862,29 @@ bool tagcache_retrieve(struct tagcache_search *tcs, int idxid,
}
#ifdef HAVE_TC_RAMCACHE
if (tcs->ramsearch)
if (tcs->ramsearch && TAG_FILENAME_RAM(tcs))
{
struct tagfile_entry *ep;
# ifdef HAVE_DIRCACHE
if (tcs->type == tag_filename)
{
dircache_copy_path((struct dircache_entry *)seek,
buf, size);
return true;
}
else
{
struct tagfile_entry *ep;
# endif
ep = (struct tagfile_entry *)&hdr->tags[tcs->type][seek];
strncpy(buf, ep->tag_data, size-1);
}
return true;
}
#endif
if (tcs->idxfd[tcs->type] < 0)
{
char fn[MAX_PATH];
snprintf(fn, sizeof fn, TAGCACHE_FILE_INDEX, tcs->type);
tcs->idxfd[tcs->type] = open(fn, O_RDONLY);
}
if (tcs->idxfd[tcs->type] < 0)
{
logf("File not open!");
if (!open_files(tcs))
return false;
}
lseek(tcs->idxfd[tcs->type], seek, SEEK_SET);
if (read(tcs->idxfd[tcs->type], &tfe, sizeof(struct tagfile_entry)) !=
@ -870,18 +914,6 @@ bool tagcache_retrieve(struct tagcache_search *tcs, int idxid,
#if 0
static bool tagcache_delete(const char *filename)
{
struct index_entry *entry;
entry = find_entry_disk(filename, true);
if (entry == NULL)
{
logf("not found: %s", filename);
return false;
}
}
void tagcache_modify(struct tagcache_search *tcs, int type, const char *text)
{
struct tagentry *entry;
@ -898,7 +930,7 @@ void tagcache_modify(struct tagcache_search *tcs, int type, const char *text)
tcs->seek_list[tcs->seek_list_count];
}
entry = find_entry_ram(
entry = find_entry_ram();
}
#endif
@ -907,13 +939,6 @@ void tagcache_search_finish(struct tagcache_search *tcs)
{
int i;
if (tcs->fd >= 0)
{
close(tcs->fd);
tcs->fd = -1;
tcs->idxfd[tcs->type] = -1;
}
if (tcs->masterfd >= 0)
{
close(tcs->masterfd);
@ -933,7 +958,7 @@ void tagcache_search_finish(struct tagcache_search *tcs)
tcs->valid = false;
}
#ifdef HAVE_TC_RAMCACHE
#if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
static struct tagfile_entry *get_tag(const struct index_entry *entry, int tag)
{
return (struct tagfile_entry *)&hdr->tags[tag][entry->tag_seek[tag]];
@ -984,7 +1009,7 @@ inline void check_if_empty(char **tag)
#define CRC_BUF_LEN 8
#ifdef HAVE_TC_RAMCACHE
#if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
static void add_tagcache(const char *path, const struct dircache_entry *dc)
#else
static void add_tagcache(const char *path)
@ -1006,8 +1031,8 @@ static void add_tagcache(const char *path)
return ;
/* Check if the file is already cached. */
#ifdef HAVE_TC_RAMCACHE
if (stat.ramcache)
#if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
if (stat.ramcache && dircache_is_enabled())
{
if (find_entry_ram(path, dc))
return ;
@ -1477,7 +1502,7 @@ static int build_index(int index_type, struct tagcache_header *h, int tmpfd)
if (entry.tag_length >= (int)sizeof(buf))
{
logf("too long tag");
logf("too long tag #3");
close(fd);
return -2;
}
@ -1489,6 +1514,10 @@ static int build_index(int index_type, struct tagcache_header *h, int tmpfd)
return -2;
}
/* Skip deleted entries. */
if (buf[0] == '\0')
continue;
/**
* Save the tag and tag id in the memory buffer. Tag id
* is saved so we can later reindex the master lookup
@ -1673,6 +1702,18 @@ static int build_index(int index_type, struct tagcache_header *h, int tmpfd)
for (j = 0; j < idxbuf_pos; j++)
{
if (idxbuf[j].flag & FLAG_DELETED)
{
int k;
idxbuf_pos--;
for (k = j; k < idxbuf_pos; k++)
idxbuf[k] = idxbuf[k+1];
j--;
continue;
}
idxbuf[j].tag_seek[index_type] = tempbuf_find_location(
idxbuf[j].tag_seek[index_type]/TAGFILE_ENTRY_CHUNK_LENGTH
+ TAGFILE_MAX_ENTRIES);
@ -2008,6 +2049,117 @@ static void free_tempbuf(void)
tempbuf_size = 0;
}
static bool delete_entry(long idx_id)
{
int fd;
int tag, i;
struct index_entry idx, myidx;
struct tagcache_header hdr;
char buf[MAX_PATH];
int in_use[TAG_COUNT];
fd = open(TAGCACHE_FILE_MASTER, O_RDWR);
if (fd < 0)
{
logf("master file open failed for R/W");
return false;
}
/* Check the header. */
read(fd, &hdr, sizeof(struct tagcache_header));
if (hdr.magic != TAGCACHE_MAGIC)
{
logf("header error");
return false;
}
lseek(fd, idx_id * sizeof(struct index_entry), SEEK_CUR);
if (read(fd, &myidx, sizeof(struct index_entry))
!= sizeof(struct index_entry))
{
logf("read error");
return false;
}
myidx.flag |= FLAG_DELETED;
lseek(fd, -sizeof(struct index_entry), SEEK_CUR);
if (write(fd, &myidx, sizeof(struct index_entry))
!= sizeof(struct index_entry))
{
logf("write error");
return false;
}
/* Now check which tags are no longer in use (if any) */
for (tag = 0; tag < TAG_COUNT; tag++)
in_use[tag] = 0;
lseek(fd, sizeof(struct tagcache_header), SEEK_SET);
for (i = 0; i < hdr.entry_count; i++)
{
if (read(fd, &idx, sizeof(struct index_entry))
!= sizeof(struct index_entry))
{
logf("read error");
close(fd);
return false;
}
if (idx.flag & FLAG_DELETED)
continue;
for (tag = 0; tag < TAG_COUNT; tag++)
{
if (tagcache_is_numeric_tag(tag))
continue;
if (idx.tag_seek[tag] == myidx.tag_seek[tag])
in_use[tag]++;
}
}
close(fd);
/* Now delete all tags no longer in use. */
for (tag = 0; tag < TAG_COUNT; tag++)
{
if (tagcache_is_numeric_tag(tag))
continue;
if (in_use[tag])
{
logf("in use: %d/%d", tag, in_use[tag]);
continue;
}
/* Open the index file, which contains the tag names. */
snprintf(buf, sizeof buf, TAGCACHE_FILE_INDEX, tag);
fd = open(buf, O_RDWR);
if (fd < 0)
{
logf("open failed");
return false;
}
/* Skip the header block */
lseek(fd, myidx.tag_seek[tag] + sizeof(struct tagfile_entry), SEEK_SET);
read(fd, buf, 10);
buf[10]='\0';
logf("TAG:%s", buf);
lseek(fd, -10, SEEK_CUR);
/* Write first data byte in tag as \0 */
write(fd, "", 1);
/* Now tag data has been removed */
close(fd);
}
return true;
}
#ifdef HAVE_TC_RAMCACHE
static bool allocate_tagcache(void)
{
@ -2063,12 +2215,13 @@ static bool load_tagcache(void)
char *p;
int i;
/* We really need the dircache for this. */
if (!dircache_is_enabled())
return false;
logf("loading tagcache to ram...");
# ifdef HAVE_DIRCACHE
while (dircache_is_initializing())
sleep(1);
# endif
fd = open(TAGCACHE_FILE_MASTER, O_RDONLY);
if (fd < 0)
{
@ -2151,8 +2304,11 @@ static bool load_tagcache(void)
hdr->entry_count[i] < tch->entry_count;
hdr->entry_count[i]++)
{
long pos;
yield();
fe = (struct tagfile_entry *)p;
pos = lseek(fd, 0, SEEK_CUR);
rc = read(fd, fe, sizeof(struct tagfile_entry));
if (rc != sizeof(struct tagfile_entry))
{
@ -2165,10 +2321,23 @@ static bool load_tagcache(void)
/* We have a special handling for the filename tags. */
if (i == tag_filename)
{
# ifdef HAVE_DIRCACHE
const struct dircache_entry *dc;
# endif
// FIXME: This is wrong!
// idx = &hdr->indices[hdr->entry_count[i]];
idx = &hdr->indices[fe->idx_id];
/* Check if the entry has already been removed */
if (idx->flag & FLAG_DELETED)
continue;
if (fe->tag_length >= (long)sizeof(buf)-1)
{
read(fd, buf, 10);
buf[10] = '\0';
logf("TAG:%s", buf);
logf("too long filename");
close(fd);
return false;
@ -2182,18 +2351,43 @@ static bool load_tagcache(void)
return false;
}
# ifdef HAVE_DIRCACHE
if (dircache_is_enabled())
{
dc = dircache_get_entry_ptr(buf);
if (dc == NULL)
{
logf("Entry no longer valid.");
logf("-> %s", buf);
/* FIXME: Properly delete the entry. */
hdr->indices[hdr->entry_count[i]].flag |= FLAG_DELETED;
idx->flag |= FLAG_DELETED;
delete_entry(fe->idx_id);
continue ;
}
hdr->indices[hdr->entry_count[i]].tag_seek[tag_filename]
= (long)dc;
idx->flag |= FLAG_DIRCACHE;
idx->tag_seek[tag_filename] = (long)dc;
}
else
# endif
{
/* Check if entry has been removed. */
if (global_settings.tagcache_autoupdate)
{
int testfd;
testfd = open(buf, O_RDONLY);
if (testfd < 0)
{
logf("Entry no longer valid.");
logf("-> %s", buf);
idx->flag |= FLAG_DELETED;
delete_entry((long)idx - (long)hdr->indices);
continue;
}
}
idx->tag_seek[i] = pos;
}
continue ;
}
@ -2231,7 +2425,59 @@ static bool load_tagcache(void)
return true;
}
#endif
#endif /* HAVE_TC_RAMCACHE */
static bool check_deleted_files(void)
{
int fd, testfd;
char buf[MAX_PATH];
struct tagfile_entry tfe;
logf("reverse scan...");
snprintf(buf, sizeof buf, TAGCACHE_FILE_INDEX, tag_filename);
fd = open(buf, O_RDONLY);
if (fd < 0)
{
logf("%s open fail", buf);
return false;
}
lseek(fd, sizeof(struct tagcache_header), SEEK_SET);
while (read(fd, &tfe, sizeof(struct tagfile_entry))
== sizeof(struct tagfile_entry) && queue_empty(&tagcache_queue))
{
if (tfe.tag_length >= (long)sizeof(buf)-1)
{
logf("too long tag");
close(fd);
return false;
}
if (read(fd, buf, tfe.tag_length) != tfe.tag_length)
{
logf("read error");
close(fd);
return false;
}
/* Now check if the file exists. */
testfd = open(buf, O_RDONLY);
if (testfd < 0)
{
logf("Entry no longer valid.");
logf("-> %s", buf);
delete_entry(tfe.idx_id);
}
close(testfd);
}
close(fd);
logf("done");
return true;
}
static bool check_dir(const char *dirname)
{
@ -2273,7 +2519,7 @@ static bool check_dir(const char *dirname)
if (entry->attribute & ATTR_DIRECTORY)
check_dir(curpath);
else
#ifdef HAVE_TC_RAMCACHE
#if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
add_tagcache(curpath, dir->internal_entry);
#else
add_tagcache(curpath);
@ -2423,25 +2669,41 @@ static void tagcache_thread(void)
check_done = false;
break ;
case Q_FORCE_UPDATE:
//remove_files();
case Q_REBUILD:
remove_files();
build_tagcache();
break;
case Q_UPDATE:
build_tagcache();
check_deleted_files();
break ;
case SYS_TIMEOUT:
if (check_done)
break ;
#ifdef HAVE_TC_RAMCACHE
case SYS_TIMEOUT:
if (check_done || !dircache_is_enabled())
break ;
if (!stat.ramcache && global_settings.tagcache_ram)
{
load_ramcache();
if (stat.ramcache)
build_tagcache();
}
else
#endif
if (global_settings.tagcache_autoupdate)
{
build_tagcache();
/* Don't do auto removal without dircache (very slow). */
#ifdef HAVE_DIRCACHE
if (dircache_is_enabled())
check_deleted_files();
#endif
}
check_done = true;
break ;
#endif
case Q_STOP_SCAN:
break ;
@ -2470,6 +2732,8 @@ static int get_progress(void)
total_count = dircache_get_entry_count();
}
else
#endif
#ifdef HAVE_TC_RAMCACHE
{
if (hdr && stat.ramcache)
total_count = hdr->h.entry_count;
@ -2495,9 +2759,17 @@ void tagcache_start_scan(void)
queue_post(&tagcache_queue, Q_START_SCAN, 0);
}
bool tagcache_force_update(void)
bool tagcache_update(void)
{
queue_post(&tagcache_queue, Q_FORCE_UPDATE, 0);
queue_post(&tagcache_queue, Q_UPDATE, 0);
gui_syncsplash(HZ*2, true, str(LANG_TAGCACHE_FORCE_UPDATE_SPLASH));
return false;
}
bool tagcache_rebuild(void)
{
queue_post(&tagcache_queue, Q_REBUILD, 0);
gui_syncsplash(HZ*2, true, str(LANG_TAGCACHE_FORCE_UPDATE_SPLASH));
return false;

11
apps/tagcache.h
View file

@ -27,10 +27,6 @@ enum tag_type { tag_artist = 0, tag_album, tag_genre, tag_title,
#define TAG_COUNT 10
#ifdef HAVE_DIRCACHE
#define HAVE_TC_RAMCACHE 1
#endif
/* Allow a little drift to the filename ordering (should not be too high/low). */
#define POS_HISTORY_COUNT 4
@ -70,7 +66,8 @@ enum tag_type { tag_artist = 0, tag_album, tag_genre, tag_title,
#define TAGCACHE_FILE_INDEX ROCKBOX_DIR "/tagcache_%d.tcd"
/* Flags */
#define FLAG_DELETED 0x0001
#define FLAG_DELETED 0x0001 /* Entry has been removed from db */
#define FLAG_DIRCACHE 0x0002 /* Filename is a dircache pointer */
enum clause { clause_none, clause_is, clause_gt, clause_gteq, clause_lt,
clause_lteq, clause_contains, clause_begins_with, clause_ends_with };
@ -102,6 +99,7 @@ struct tagcache_search {
int fd, masterfd;
int idxfd[TAG_COUNT];
long seek_list[SEEK_LIST_SIZE];
long seek_flags[SEEK_LIST_SIZE];
long filter_tag[TAGCACHE_MAX_FILTERS];
long filter_seek[TAGCACHE_MAX_FILTERS];
int filter_count;
@ -147,6 +145,7 @@ void tagcache_init(void);
bool tagcache_is_initialized(void);
void tagcache_start_scan(void);
void tagcache_stop_scan(void);
bool tagcache_force_update(void);
bool tagcache_update(void);
bool tagcache_rebuild(void);
#endif

1
apps/tagtree.c
View file

@ -575,6 +575,7 @@ int tagtree_load(struct tree_context* c)
{
case root:
count = load_root(c);
c->dirlevel = 0;
break;
case allsubentries:

8
firmware/common/dircache.c
View file

@ -689,6 +689,14 @@ bool dircache_is_enabled(void)
return dircache_initialized;
}
/**
* Returns true if dircache is being initialized.
*/
bool dircache_is_initializing(void)
{
return dircache_initializing;
}
/**
* Returns the current number of entries (directories and files) in the cache.
*/

4
firmware/export/config.h
View file

@ -190,6 +190,10 @@
#define HAVE_DIRCACHE 1
#endif
/* Define tagcache in ram for all players (can operate
* also without dircache). */
#define HAVE_TC_RAMCACHE 1
/* define for all cpus from coldfire family */
#if (CONFIG_CPU == MCF5249) || (CONFIG_CPU == MCF5250)
#define CPU_COLDFIRE

1
firmware/include/dircache.h
View file

@ -85,6 +85,7 @@ int dircache_save(const char *path);
int dircache_build(int last_size);
void* dircache_steal_buffer(long *size);
bool dircache_is_enabled(void);
bool dircache_is_initializing(void);
int dircache_get_entry_count(void);
int dircache_get_cache_size(void);
int dircache_get_reserve_used(void);