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Use *NSYNC for POSIX threads locking APIs

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Condition variables, barriers, and r/w locks now work very well.
This commit is contained in:
Justine Tunney 2022-09-11 11:02:07 -07:00
parent 3de35e196c
commit b5cb71ab84
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GPG key ID: BE714B4575D6E328
197 changed files with 3734 additions and 3817 deletions
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49
libc/intrin/describefutexop.c
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@ -16,16 +16,47 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/fmt/itoa.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/futex.h"
const char *DescribeFutexOp(int x) {
if (x == FUTEX_WAIT) return "FUTEX_WAIT";
if (x == FUTEX_WAKE) return "FUTEX_WAKE";
if (x == FUTEX_REQUEUE) return "FUTEX_REQUEUE";
// order matters (the private bit might be zero)
if (x == FUTEX_WAIT_PRIVATE) return "FUTEX_WAIT_PRIVATE";
if (x == FUTEX_WAKE_PRIVATE) return "FUTEX_WAKE_PRIVATE";
if (x == FUTEX_REQUEUE_PRIVATE) return "FUTEX_REQUEUE_PRIVATE";
return "FUTEX_???";
const char *(DescribeFutexOp)(char buf[64], int x) {
bool priv = false;
if (x & FUTEX_PRIVATE_FLAG) {
priv = true;
x &= ~FUTEX_PRIVATE_FLAG;
}
bool real = false;
if (x & FUTEX_CLOCK_REALTIME) {
real = true;
x &= ~FUTEX_CLOCK_REALTIME;
}
char *p = buf;
if (x == FUTEX_WAIT) {
p = stpcpy(p, "FUTEX_WAIT");
} else if (x == FUTEX_WAKE) {
p = stpcpy(p, "FUTEX_WAKE");
} else if (x == FUTEX_REQUEUE) {
p = stpcpy(p, "FUTEX_REQUEUE");
} else if (x == FUTEX_WAIT_BITSET) {
p = stpcpy(p, "FUTEX_WAIT_BITSET");
} else {
p = stpcpy(p, "FUTEX_");
p = FormatUint32(p, x);
}
if (priv) {
p = stpcpy(p, "_PRIVATE");
}
if (real) {
p = stpcpy(p, "|FUTEX_CLOCK_REALTIME");
}
return buf;
}