mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-27 14:58:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Do more quality assurance work

Browse source
This commit is contained in:
Justine Tunney 2024-06-24 06:53:49 -07:00
parent 67b19ae733
commit d461c6f47d
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
31 changed files with 194 additions and 108 deletions
Download patch file Download diff file Expand all files Collapse all files

25
third_party/nsync/common.c vendored
View file

@ -36,6 +36,10 @@
#include "libc/runtime/runtime.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/map.h"
#include "libc/nt/runtime.h"
#include "libc/intrin/directmap.internal.h"
#include "libc/thread/thread.h"
#include "libc/dce.h"
#include "third_party/nsync/wait_s.internal.h"
__static_yoink("nsync_notice");
@ -154,10 +158,19 @@ waiter *nsync_dll_waiter_samecond_ (struct Dll *e) {
static void *nsync_malloc (size_t size) {
void *res;
res = mmap (0, size,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS,
-1, 0);
if (!IsWindows ()) {
// too much of a performance hit to track
res = __sys_mmap ((void *)0x7110000000, size,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS,
-1, 0, 0);
} else {
// must be tracked for fork() resurrection
res = mmap (0, size,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS,
-1, 0);
}
if (res == MAP_FAILED)
nsync_panic_ ("out of memory\n");
return res;
@ -168,7 +181,7 @@ static void *nsync_malloc (size_t size) {
static struct Dll *free_waiters = NULL;
/* free_waiters points to a doubly-linked list of free waiter structs. */
static nsync_atomic_uint32_ free_waiters_mu; /* spinlock; protects free_waiters */
nsync_atomic_uint32_ free_waiters_mu; /* spinlock; protects free_waiters */
#define waiter_for_thread __get_tls()->tib_nsync
@ -236,6 +249,8 @@ void nsync_waiter_free_ (waiter *w) {
nsync_spin_test_and_set_ (&free_waiters_mu, 1, 1, 0);
dll_make_first (&free_waiters, &w->nw.q);
ATM_STORE_REL (&free_waiters_mu, 0); /* release store */
if (w == waiter_for_thread)
waiter_for_thread = 0;
}
}