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Commit tagcache in background when possible (at least dircache enabled).

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9686 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Miika Pekkarinen 2006-04-16 17:32:54 +00:00
parent caec58bc0f
commit 3b31346103
8 changed files with 165 additions and 47 deletions
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33
firmware/common/dircache.c
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@ -567,6 +567,7 @@ static int dircache_do_rebuild(void)
audiobuf += (long)((dircache_size & ~0x03) + 0x04);
audiobuf += DIRCACHE_RESERVE;
allocated_size = dircache_size + DIRCACHE_RESERVE;
reserve_used = 0;
}
return 1;
@ -612,27 +613,20 @@ static void dircache_thread(void)
*/
int dircache_build(int last_size)
{
if (dircache_initialized)
if (dircache_initialized || thread_enabled)
return -3;
while (thread_enabled)
sleep(1);
logf("Building directory cache");
if (dircache_size > 0)
{
allocated_size = dircache_size + (DIRCACHE_RESERVE-reserve_used);
thread_enabled = true;
queue_post(&dircache_queue, DIRCACHE_BUILD, 0);
return 2;
}
else
{
dircache_root = (struct dircache_entry *)(((long)audiobuf & ~0x03) + 0x04);
dircache_size = 0;
}
dircache_root = (struct dircache_entry *)(((long)audiobuf & ~0x03) + 0x04);
if (last_size > DIRCACHE_RESERVE && last_size < DIRCACHE_LIMIT)
if (last_size > DIRCACHE_RESERVE && last_size < DIRCACHE_LIMIT )
{
allocated_size = last_size + DIRCACHE_RESERVE;
@ -649,6 +643,23 @@ int dircache_build(int last_size)
return dircache_do_rebuild();
}
/**
* Steal the allocated dircache buffer and disable dircache.
*/
void* dircache_steal_buffer(long *size)
{
dircache_disable();
if (dircache_size == 0)
{
*size = 0;
return NULL;
}
*size = dircache_size + (DIRCACHE_RESERVE-reserve_used);
return dircache_root;
}
/**
* Main initialization function that must be called before any other
* operations within the dircache.