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Diffstat (limited to 'lib/libpthread/thread/thr_spec.c')
-rw-r--r--lib/libpthread/thread/thr_spec.c85
1 files changed, 42 insertions, 43 deletions
diff --git a/lib/libpthread/thread/thr_spec.c b/lib/libpthread/thread/thr_spec.c
index 07ef3875b3651..2cd18d143b235 100644
--- a/lib/libpthread/thread/thr_spec.c
+++ b/lib/libpthread/thread/thr_spec.c
@@ -39,7 +39,6 @@
#include "thr_private.h"
struct pthread_key {
- spinlock_t lock;
volatile int allocated;
volatile int count;
int seqno;
@@ -47,7 +46,7 @@ struct pthread_key {
};
/* Static variables: */
-static struct pthread_key key_table[PTHREAD_KEYS_MAX];
+static struct pthread_key key_table[PTHREAD_KEYS_MAX];
__weak_reference(_pthread_key_create, pthread_key_create);
__weak_reference(_pthread_key_delete, pthread_key_delete);
@@ -56,44 +55,47 @@ __weak_reference(_pthread_setspecific, pthread_setspecific);
int
-_pthread_key_create(pthread_key_t * key, void (*destructor) (void *))
+_pthread_key_create(pthread_key_t *key, void (*destructor) (void *))
{
+ struct pthread *curthread = _get_curthread();
+
+ /* Lock the key table: */
+ THR_LOCK_ACQUIRE(curthread, &_keytable_lock);
for ((*key) = 0; (*key) < PTHREAD_KEYS_MAX; (*key)++) {
- /* Lock the key table entry: */
- _SPINLOCK(&key_table[*key].lock);
if (key_table[(*key)].allocated == 0) {
key_table[(*key)].allocated = 1;
key_table[(*key)].destructor = destructor;
key_table[(*key)].seqno++;
- /* Unlock the key table entry: */
- _SPINUNLOCK(&key_table[*key].lock);
+ /* Unlock the key table: */
+ THR_LOCK_RELEASE(curthread, &_keytable_lock);
return (0);
}
- /* Unlock the key table entry: */
- _SPINUNLOCK(&key_table[*key].lock);
}
+ /* Unlock the key table: */
+ THR_LOCK_RELEASE(curthread, &_keytable_lock);
return (EAGAIN);
}
int
_pthread_key_delete(pthread_key_t key)
{
+ struct pthread *curthread = _get_curthread();
int ret = 0;
if (key < PTHREAD_KEYS_MAX) {
- /* Lock the key table entry: */
- _SPINLOCK(&key_table[key].lock);
+ /* Lock the key table: */
+ THR_LOCK_ACQUIRE(curthread, &_keytable_lock);
if (key_table[key].allocated)
key_table[key].allocated = 0;
else
ret = EINVAL;
- /* Unlock the key table entry: */
- _SPINUNLOCK(&key_table[key].lock);
+ /* Unlock the key table: */
+ THR_LOCK_RELEASE(curthread, &_keytable_lock);
} else
ret = EINVAL;
return (ret);
@@ -105,44 +107,41 @@ _thread_cleanupspecific(void)
struct pthread *curthread = _get_curthread();
void *data = NULL;
int key;
- int itr;
void (*destructor)( void *);
- for (itr = 0; itr < PTHREAD_DESTRUCTOR_ITERATIONS; itr++) {
- for (key = 0; key < PTHREAD_KEYS_MAX; key++) {
- if (curthread->specific_data_count > 0) {
- /* Lock the key table entry: */
- _SPINLOCK(&key_table[key].lock);
- destructor = NULL;
-
- if (key_table[key].allocated &&
- (curthread->specific[key].data != NULL)) {
- if (curthread->specific[key].seqno ==
- key_table[key].seqno) {
- data = (void *) curthread->specific[key].data;
- destructor = key_table[key].destructor;
- }
- curthread->specific[key].data = NULL;
- curthread->specific_data_count--;
+ if (curthread->specific != NULL) {
+ /* Lock the key table: */
+ THR_LOCK_ACQUIRE(curthread, &_keytable_lock);
+ for (key = 0; (key < PTHREAD_KEYS_MAX) &&
+ (curthread->specific_data_count > 0); key++) {
+ destructor = NULL;
+
+ if (key_table[key].allocated &&
+ (curthread->specific[key].data != NULL)) {
+ if (curthread->specific[key].seqno ==
+ key_table[key].seqno) {
+ data = (void *)curthread->specific[key].data;
+ destructor = key_table[key].destructor;
}
+ curthread->specific[key].data = NULL;
+ curthread->specific_data_count--;
+ }
- /* Unlock the key table entry: */
- _SPINUNLOCK(&key_table[key].lock);
-
+ /*
+ * If there is a destructore, call it
+ * with the key table entry unlocked:
+ */
+ if (destructor != NULL) {
/*
- * If there is a destructore, call it
- * with the key table entry unlocked:
+ * Don't hold the lock while calling the
+ * destructor:
*/
- if (destructor)
- destructor(data);
- } else {
- free(curthread->specific);
- curthread->specific = NULL;
- return;
+ THR_LOCK_RELEASE(curthread, &_keytable_lock);
+ destructor(data);
+ THR_LOCK_ACQUIRE(curthread, &_keytable_lock);
}
}
- }
- if (curthread->specific != NULL) {
+ THR_LOCK_RELEASE(curthread, &_keytable_lock);
free(curthread->specific);
curthread->specific = NULL;
}