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Fix some issues and do some code cleanup

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This commit is contained in:
Justine Tunney 2022-05-23 10:15:53 -07:00
parent 1f229e4efc
commit 312ed5c67c
72 changed files with 880 additions and 982 deletions
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22
libc/stdio/flockfile.c
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@ -28,16 +28,18 @@
void flockfile(FILE *f) {
int me, owner;
unsigned tries;
if (!__threaded) return;
for (tries = 0, me = gettid();;) {
owner = 0;
if (_lockcmpxchgp(&f->lock, &owner, me) || owner == me) {
return;
}
if (++tries & 7) {
__builtin_ia32_pause();
} else {
sched_yield();
if (__threaded) {
for (tries = 0, me = gettid();;) {
owner = 0;
if (_lockcmpxchgp(&f->lock, &owner, me) || owner == me) {
break;
}
if (++tries & 7) {
__builtin_ia32_pause();
} else {
sched_yield();
}
}
}
++f->reent;
}