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Always check for deleted files, no matter how slow it might be when DB autoupdate is enabled. Also simplified code a bit. Fixed a crash when search is performaed and dircache has been vanished and DB is still exists ram.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16081 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Miika Pekkarinen 2008-01-13 19:13:37 +00:00
parent fa7eb56c84
commit 39c597b5e1
3 changed files with 51 additions and 26 deletions
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20
firmware/common/dircache.c
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@ -60,6 +60,7 @@ static unsigned long dircache_size = 0;
static unsigned long entry_count = 0;
static unsigned long reserve_used = 0;
static unsigned int cache_build_ticks = 0;
static unsigned long appflags = 0;
static char dircache_cur_path[MAX_PATH*2];
static struct event_queue dircache_queue;
@ -450,6 +451,7 @@ int dircache_load(void)
dircache_root = buffer_alloc(maindata.size + DIRCACHE_RESERVE);
entry_count = maindata.entry_count;
appflags = maindata.appflags;
bytes_read = read(fd, dircache_root, MIN(DIRCACHE_LIMIT, maindata.size));
close(fd);
remove(DIRCACHE_FILE);
@ -493,6 +495,7 @@ int dircache_save(void)
maindata.size = dircache_size;
maindata.root_entry = dircache_root;
maindata.entry_count = entry_count;
maindata.appflags = appflags;
/* Save the info structure */
bytes_written = write(fd, &maindata, sizeof(struct dircache_maindata));
@ -532,6 +535,7 @@ static int dircache_do_rebuild(void)
/* Measure how long it takes build the cache. */
start_tick = current_tick;
dircache_initializing = true;
appflags = 0;
#ifdef SIMULATOR
pdir = opendir_uncached("/");
@ -722,6 +726,22 @@ bool dircache_is_initializing(void)
return dircache_initializing || thread_enabled;
}
/**
* Set application flags used to determine if dircache is still intact.
*/
void dircache_set_appflag(long mask)
{
appflags |= mask;
}
/**
* Get application flags used to determine if dircache is still intact.
*/
bool dircache_get_appflag(long mask)
{
return appflags & mask;
}
/**
* Returns the current number of entries (directories and files) in the cache.
*/