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Automatically import the changelog after initializing tagcache.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10295 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Miika Pekkarinen 2006-07-23 15:35:53 +00:00
parent d29c03484b
commit 86f07c7ccb
1 changed files with 58 additions and 41 deletions
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99
apps/tagcache.c
View file

@ -72,6 +72,7 @@ static struct tagcache_stat stat;
enum tagcache_queue {
Q_STOP_SCAN = 0,
Q_START_SCAN,
Q_IMPORT_CHANGELOG,
Q_UPDATE,
Q_REBUILD,
};
@ -424,11 +425,10 @@ bool tagcache_find_index(struct tagcache_search *tcs, const char *filename)
return true;
}
static bool tagcache_get_index(const struct tagcache_search *tcs,
int idxid, struct index_entry *idx)
static bool get_index(int masterfd, int idxid, struct index_entry *idx)
{
#ifdef HAVE_TC_RAMCACHE
if (tcs->ramsearch)
if (stat.ramcache)
{
if (hdr->indices[idxid].flag & FLAG_DELETED)
return false;
@ -438,15 +438,37 @@ static bool tagcache_get_index(const struct tagcache_search *tcs,
}
#endif
lseek(tcs->masterfd, idxid * sizeof(struct index_entry)
lseek(masterfd, idxid * sizeof(struct index_entry)
+ sizeof(struct master_header), SEEK_SET);
if (read(tcs->masterfd, idx, sizeof(struct index_entry)) !=
if (read(masterfd, idx, sizeof(struct index_entry)) !=
sizeof(struct index_entry))
{
logf("read error #3");
return false;
}
if (idx->flag & FLAG_DELETED)
return false;
return true;
}
static bool write_index(int masterfd, int idxid, struct index_entry *idx)
{
#ifdef HAVE_TC_RAMCACHE
if (stat.ramcache)
memcpy(&hdr->indices[idxid], idx, sizeof(struct index_entry));
#endif
lseek(masterfd, idxid * sizeof(struct index_entry)
+ sizeof(struct master_header), SEEK_SET);
if (write(masterfd, idx, sizeof(struct index_entry)) !=
sizeof(struct index_entry))
{
logf("write error #3");
return false;
}
return true;
}
@ -487,7 +509,7 @@ long tagcache_get_numeric(const struct tagcache_search *tcs, int tag)
if (!tagcache_is_numeric_tag(tag))
return -1;
if (!tagcache_get_index(tcs, tcs->idx_id, &idx))
if (!get_index(tcs->masterfd, tcs->idx_id, &idx))
return -2;
return check_virtual_tags(tag, &idx);
@ -991,7 +1013,7 @@ bool tagcache_retrieve(struct tagcache_search *tcs, int idxid,
struct index_entry idx;
long seek;
if (!tagcache_get_index(tcs, idxid, &idx))
if (!get_index(tcs->masterfd, idxid, &idx))
return false;
seek = idx.tag_seek[tcs->type];
@ -2137,6 +2159,8 @@ static bool commit(void)
tagcache_start_scan();
#endif
queue_post(&tagcache_queue, Q_IMPORT_CHANGELOG, 0);
return true;
}
@ -2208,37 +2232,13 @@ static bool modify_numeric_entry(int masterfd, int idx_id, int tag, long data)
if (!tagcache_is_numeric_tag(tag))
return false;
#ifdef HAVE_TC_RAMCACHE
/* Update ram entries first. */
if (hdr)
{
hdr->indices[idx_id].tag_seek[tag] = data;
hdr->indices[idx_id].flag |= FLAG_DIRTYNUM;
}
#endif
/* And now update the db on disk also. */
lseek(masterfd, idx_id * sizeof(struct index_entry)
+ sizeof(struct master_header), SEEK_SET);
if (read(masterfd, &idx, sizeof(struct index_entry))
!= sizeof(struct index_entry))
{
logf("read error");
if (!get_index(masterfd, idx_id, &idx))
return false;
}
idx.flag |= FLAG_DIRTYNUM;
idx.tag_seek[tag] = data;
idx.flag |= FLAG_DIRTYNUM;
lseek(masterfd, -sizeof(struct index_entry), SEEK_CUR);
if (write(masterfd, &idx, sizeof(struct index_entry))
!= sizeof(struct index_entry))
{
logf("write error");
return false;
}
return true;
return write_index(masterfd, idx_id, &idx);
}
bool tagcache_modify_numeric_entry(struct tagcache_search *tcs,
@ -2357,6 +2357,7 @@ static bool read_tag(char *dest, long size,
static bool parse_changelog_line(int masterfd, const char *buf)
{
struct index_entry idx;
char tag_data[MAX_PATH];
int idx_id;
const int import_tags[] = { tag_playcount, tag_playtime, tag_lastplayed };
@ -2379,6 +2380,19 @@ static bool parse_changelog_line(int masterfd, const char *buf)
return false;
}
if (!get_index(masterfd, idx_id, &idx))
{
logf("failed to retrieve index entry");
return false;
}
/* Stop if tag has already been modified. */
if (idx.flag & FLAG_DIRTYNUM)
return false;
logf("import: %s", tag_data);
idx.flag |= FLAG_DIRTYNUM;
for (i = 0; i < (long)(sizeof(import_tags)/sizeof(import_tags[0])); i++)
{
int data;
@ -2393,13 +2407,13 @@ static bool parse_changelog_line(int masterfd, const char *buf)
if (data < 0)
continue;
modify_numeric_entry(masterfd, idx_id, import_tags[i], data);
idx.tag_seek[import_tags[i]] = data;
if (import_tags[i] == tag_lastplayed && data > current_serial)
current_serial = data;
}
return true;
return write_index(masterfd, idx_id, &idx);
}
bool tagcache_import_changelog(void)
@ -3155,10 +3169,10 @@ static void tagcache_thread(void)
switch (ev.id)
{
case Q_START_SCAN:
check_done = false;
break ;
case Q_IMPORT_CHANGELOG:
tagcache_import_changelog();
break;
case Q_REBUILD:
remove_files();
build_tagcache();
@ -3169,6 +3183,8 @@ static void tagcache_thread(void)
check_deleted_files();
break ;
case Q_START_SCAN:
check_done = false;
case SYS_TIMEOUT:
if (check_done || !stat.ready)
break ;
@ -3191,7 +3207,8 @@ static void tagcache_thread(void)
check_deleted_files();
#endif
}
logf("tagcache check done");
check_done = true;
break ;