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Use cookies for thread identification instead of pointers directly which gives a buffer against wrongly identifying a thread when the slot is recycled (which has been nagging me for awhile). A slot gets 255 uses before it repeats. Everything gets incompatible so a full update is required.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19377 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2008-12-10 08:57:10 +00:00
parent 40ff47c7ee
commit 8cfbd3604f
32 changed files with 329 additions and 234 deletions
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15
firmware/drivers/ata.c
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@ -71,7 +71,7 @@
#endif
#ifdef ATA_DRIVER_CLOSE
static struct thread_entry *ata_thread_p = NULL;
static unsigned int ata_thread_id = 0;
#endif
#if defined(MAX_PHYS_SECTOR_SIZE) && MEM == 64
@ -94,7 +94,8 @@ static void ata_lock_init(struct ata_lock *l)
static void ata_lock_lock(struct ata_lock *l)
{
struct thread_entry * const current = thread_get_current();
struct thread_entry * const current =
thread_id_entry(THREAD_ID_CURRENT);
if (current == l->thread)
{
@ -1350,7 +1351,7 @@ int ata_init(void)
last_disk_activity = current_tick;
#ifdef ATA_DRIVER_CLOSE
ata_thread_p =
ata_thread_id =
#endif
create_thread(ata_thread, ata_stack,
sizeof(ata_stack), 0, ata_thread_name
@ -1370,15 +1371,15 @@ int ata_init(void)
#ifdef ATA_DRIVER_CLOSE
void ata_close(void)
{
struct thread_entry *thread = ata_thread_p;
unsigned int thread_id = ata_thread_id;
if (thread == NULL)
if (thread_id == 0)
return;
ata_thread_p = NULL;
ata_thread_id = 0;
queue_post(&ata_queue, Q_CLOSE, 0);
thread_wait(thread);
thread_wait(thread_id);
}
#endif /* ATA_DRIVER_CLOSE */