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pthread: support pthread_key_delete

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Issue #1296
This commit is contained in:
Alexander Boettcher 2014-11-26 11:13:45 +01:00 committed by Christian Helmuth
parent a4f7800bf0
commit c40aa45d86
1 changed files with 31 additions and 4 deletions
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35
repos/libports/src/lib/pthread/thread.cc
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@ -543,17 +543,16 @@ extern "C" {
}; };
static Lock key_list_lock;
List<Key_element> key_list[PTHREAD_KEYS_MAX]; List<Key_element> key_list[PTHREAD_KEYS_MAX];
int pthread_key_create(pthread_key_t *key, void (*destructor)(void*)) int pthread_key_create(pthread_key_t *key, void (*destructor)(void*))
{ {
static Lock key_list_lock;
Lock_guard<Lock> key_list_lock_guard(key_list_lock);
if (!key) if (!key)
return EINVAL; return EINVAL;
Lock_guard<Lock> key_list_lock_guard(key_list_lock);
for (int k = 0; k < PTHREAD_KEYS_MAX; k++) { for (int k = 0; k < PTHREAD_KEYS_MAX; k++) {
/* /*
* Find an empty key slot and insert an element for the current * Find an empty key slot and insert an element for the current
@ -571,9 +570,31 @@ extern "C" {
} }
int pthread_key_delete(pthread_key_t key)
{
if (key < 0 || key >= PTHREAD_KEYS_MAX || !key_list[key].first())
return EINVAL;
Lock_guard<Lock> key_list_lock_guard(key_list_lock);
while (Key_element * element = key_list[key].first()) {
key_list[key].remove(element);
destroy(env()->heap(), element);
}
return 0;
}
int pthread_setspecific(pthread_key_t key, const void *value) int pthread_setspecific(pthread_key_t key, const void *value)
{ {
if (key < 0 || key >= PTHREAD_KEYS_MAX)
return EINVAL;
void *myself = Thread_base::myself(); void *myself = Thread_base::myself();
Lock_guard<Lock> key_list_lock_guard(key_list_lock);
for (Key_element *key_element = key_list[key].first(); key_element; for (Key_element *key_element = key_list[key].first(); key_element;
key_element = key_element->next()) key_element = key_element->next())
if (key_element->thread_base == myself) { if (key_element->thread_base == myself) {
@ -590,7 +611,13 @@ extern "C" {
void *pthread_getspecific(pthread_key_t key) void *pthread_getspecific(pthread_key_t key)
{ {
if (key < 0 || key >= PTHREAD_KEYS_MAX)
return nullptr;
void *myself = Thread_base::myself(); void *myself = Thread_base::myself();
Lock_guard<Lock> key_list_lock_guard(key_list_lock);
for (Key_element *key_element = key_list[key].first(); key_element; for (Key_element *key_element = key_list[key].first(); key_element;
key_element = key_element->next()) key_element = key_element->next())
if (key_element->thread_base == myself) if (key_element->thread_base == myself)