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Introduce clock_nanosleep()

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Justine Tunney 2022-10-05 06:37:15 -07:00
parent fe3216e961
commit b75a4654cf
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33 changed files with 553 additions and 100 deletions
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9
third_party/nsync/mu_semaphore_futex.c vendored
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@ -15,6 +15,7 @@
│ See the License for the specific language governing permissions and │
│ limitations under the License. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/errno.h"
#include "libc/str/str.h"
#include "libc/thread/thread.h"
@ -30,13 +31,17 @@ Copyright 2016 Google, Inc.\\n\
https://github.com/google/nsync\"");
// clang-format off
#ifdef TINY
#define ASSERT(x) _unassert(x)
#else
#define ASSERT(x) _npassert(x)
#endif
/* Check that atomic operations on nsync_atomic_uint32_ can be applied to int. */
static const int assert_int_size = 1 /
(sizeof (assert_int_size) == sizeof (uint32_t) &&
sizeof (nsync_atomic_uint32_) == sizeof (uint32_t));
#define ASSERT(x) do { if (!(x)) { *(volatile int *)0 = 0; } } while (0)
struct futex {
int i; /* lo half=count; hi half=waiter count */
};