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Add missing lock to fork() on Windows

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Justine Tunney 2025-01-03 19:01:58 -08:00
parent e939659b70
commit fe01642a20
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GPG key ID: BE714B4575D6E328
19 changed files with 90 additions and 96 deletions
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15
libc/proc/proc.c
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@ -16,6 +16,7 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/proc/proc.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/sig.internal.h"
@ -47,7 +48,6 @@
#include "libc/nt/struct/processmemorycounters.h"
#include "libc/nt/synchronization.h"
#include "libc/nt/thread.h"
#include "libc/proc/proc.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/map.h"
@ -67,9 +67,8 @@
#define STACK_SIZE 65536
struct Procs __proc = {
.lock = PTHREAD_MUTEX_INITIALIZER,
};
struct Procs __proc;
static pthread_mutex_t __proc_lock_obj = PTHREAD_MUTEX_INITIALIZER;
textwindows static void __proc_stats(int64_t h, struct rusage *ru) {
bzero(ru, sizeof(*ru));
@ -258,14 +257,14 @@ textwindows static void __proc_setup(void) {
*/
textwindows void __proc_lock(void) {
cosmo_once(&__proc.once, __proc_setup);
_pthread_mutex_lock(&__proc.lock);
_pthread_mutex_lock(&__proc_lock_obj);
}
/**
* Unlocks process tracker.
*/
textwindows void __proc_unlock(void) {
_pthread_mutex_unlock(&__proc.lock);
_pthread_mutex_unlock(&__proc_lock_obj);
}
/**
@ -273,10 +272,8 @@ textwindows void __proc_unlock(void) {
*/
textwindows void __proc_wipe_and_reset(void) {
// TODO(jart): Should we preserve this state in forked children?
pthread_mutex_t lock = __proc.lock;
_pthread_mutex_wipe_np(&__proc_lock_obj);
bzero(&__proc, sizeof(__proc));
__proc.lock = lock;
_pthread_mutex_wipe_np(&__proc.lock);
}
/**