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Allow user to override pthread mutex and cond

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Justine Tunney 2024-12-23 21:57:52 -08:00
parent 4705705548
commit 55b7aa1632
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GPG key ID: BE714B4575D6E328
54 changed files with 216 additions and 102 deletions
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5
libc/intrin/rand64.c
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@ -22,6 +22,7 @@
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/auxv.h"
#include "libc/thread/posixthread.internal.h"
#include "libc/thread/thread.h"
#include "libc/thread/tls.h"
@ -42,7 +43,7 @@ pthread_mutex_t __rand64_lock_obj = PTHREAD_MUTEX_INITIALIZER;
uint64_t _rand64(void) {
void *p;
uint128_t s;
pthread_mutex_lock(&__rand64_lock_obj);
_pthread_mutex_lock(&__rand64_lock_obj);
if (__pid == _rand64_pid) {
s = _rand64_pool; // normal path
} else {
@ -63,6 +64,6 @@ uint64_t _rand64(void) {
_rand64_pid = __pid;
}
_rand64_pool = (s *= 15750249268501108917ull); // lemur64
pthread_mutex_unlock(&__rand64_lock_obj);
_pthread_mutex_unlock(&__rand64_lock_obj);
return s >> 64;
}