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dircache:

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- fix check_event_queue to use queue_peek and not mess message order
- change check_dircache_state to a more modest check to avoid messing up dircache state

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26228 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Amaury Pouly 2010-05-21 12:50:50 +00:00
parent 7d8c02d105
commit b8ad90aba8
1 changed files with 7 additions and 16 deletions
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23
firmware/common/dircache.c
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@ -155,7 +155,9 @@ static bool check_event_queue(void)
{ {
struct queue_event ev; struct queue_event ev;
queue_wait_w_tmo(&dircache_queue, &ev, 0); if(!queue_peek(&dircache_queue, &ev))
return false;
switch (ev.id) switch (ev.id)
{ {
case DIRCACHE_STOP: case DIRCACHE_STOP:
@ -163,8 +165,6 @@ static bool check_event_queue(void)
#ifdef HAVE_HOTSWAP #ifdef HAVE_HOTSWAP
case SYS_FS_CHANGED: case SYS_FS_CHANGED:
#endif #endif
/* Put the event back into the queue. */
queue_post(&dircache_queue, ev.id, ev.data);
return true; return true;
} }
@ -1092,6 +1092,7 @@ void dircache_mkdir(const char *path)
if (block_until_ready()) if (block_until_ready())
return ; return ;
logf("mkdir: %s", path); logf("mkdir: %s", path);
dircache_new_entry(path, ATTR_DIRECTORY); dircache_new_entry(path, ATTR_DIRECTORY);
} }
@ -1211,17 +1212,9 @@ void dircache_add_file(const char *path, long startcluster)
entry->startcluster = startcluster; entry->startcluster = startcluster;
} }
/* Check if dircache state is still valid. With hotswap, on fs changed, static bool is_disable_msg_pending(void)
* the dircache became invalid but functions could be called before the
* dircache thread processes the message */
static void check_dircache_state(void)
{ {
if(check_event_queue()) return check_event_queue();
{
/* Keep this coherent with check_event_queue(). Currently, all the
* messages that return true will lead to disable. */
dircache_initialized = false;
}
} }
DIR_CACHED* opendir_cached(const char* name) DIR_CACHED* opendir_cached(const char* name)
@ -1248,10 +1241,8 @@ DIR_CACHED* opendir_cached(const char* name)
} }
pdir->busy = true; pdir->busy = true;
/* check real dircache state */
check_dircache_state();
if (!dircache_initialized) if (!dircache_initialized || is_disable_msg_pending())
{ {
pdir->internal_entry = NULL; pdir->internal_entry = NULL;
pdir->regulardir = opendir_uncached(name); pdir->regulardir = opendir_uncached(name);