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Make improvements to locking

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This change makes pthread_mutex_lock() as fast as _spinlock() by
default. Thread instability issues on NetBSD have been resolved.
Improvements made to gdtoa thread code. Crash reporting will now
synchronize between threads in a slightly better way.
This commit is contained in:
Justine Tunney 2022-06-19 01:13:03 -07:00
parent 25041b8026
commit d5312b60f7
60 changed files with 890 additions and 629 deletions
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5
test/libc/stdio/fputc_test.c
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@ -17,6 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/runtime/internal.h"
#include "libc/stdio/stdio.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
@ -63,11 +64,15 @@ TEST(fgetc, testUnbuffered) {
}
BENCH(fputc, bench) {
__enable_tls();
__enable_threads();
FILE *f;
ASSERT_NE(NULL, (f = fopen("/dev/null", "w")));
EZBENCH2("fputc", donothing, fputc('E', f));
flockfile(f);
flockfile(f);
EZBENCH2("fputc_unlocked", donothing, fputc_unlocked('E', f));
funlockfile(f);
funlockfile(f);
fclose(f);
}