mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-08-03 16:30:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Make more threading improvements

Browse source 
- ASAN memory morgue is now lockless
- Make C11 atomics header more portable
- Rewrote pthread keys support to be lockless
- Simplify Python's unicode table unpacking code
- Make crash report write(2) closer to being atomic
- Make it possible to strace/ftrace a single thread
- ASAN now checks nul-terminated strings fast and properly
- Windows fork() now restores TLS memory of calling thread
This commit is contained in:
Justine Tunney 2022-11-01 22:36:03 -07:00
parent d7b88734cd
commit e522aa3a07
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
189 changed files with 1363 additions and 1217 deletions
Download patch file Download diff file Expand all files Collapse all files

17
libc/intrin/pthread_key_delete.c
View file

@ -17,22 +17,23 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/errno.h"
#include "libc/intrin/atomic.h"
#include "libc/thread/posixthread.internal.h"
#include "libc/thread/thread.h"
/**
* Deletes TLS slot.
*
* @param key was created by pthread_key_create()
* @return 0 on success, or errno on error
* @raise EINVAL if `key` isn't valid
*/
int pthread_key_delete(pthread_key_t key) {
int rc;
_pthread_key_lock();
uint64_t mask;
if (key < PTHREAD_KEYS_MAX) {
_pthread_key_usage[key / 64] &= ~(1ul << (key % 64));
_pthread_key_dtor[key] = 0;
rc = 0;
atomic_store_explicit(_pthread_key_dtor + key, 0, memory_order_relaxed);
return 0;
} else {
rc = EINVAL;
return EINVAL;
}
_pthread_key_unlock();
return rc;
}