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Write more tests for signal handling

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There's now a much stronger level of assurance that signaling on Windows
will be atomic, low-latency, low tail latency, and shall never deadlock.
This commit is contained in:
Justine Tunney 2024-09-21 05:24:56 -07:00
parent 0e59afb403
commit dd8c4dbd7d
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GPG key ID: BE714B4575D6E328
19 changed files with 407 additions and 75 deletions
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3
libc/proc/proc.c
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@ -23,6 +23,7 @@
#include "libc/calls/struct/rusage.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/struct/sigset.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/cosmo.h"
#include "libc/errno.h"
#include "libc/fmt/wintime.internal.h"
@ -169,7 +170,7 @@ static textwindows dontinstrument uint32_t __proc_worker(void *arg) {
// wait for something to happen
if (n == 64) {
millis = 5;
millis = POLL_INTERVAL_MS;
} else {
millis = -1u;
handles[n++] = __proc.onbirth;

2
libc/proc/wait4-nt.c
View file

@ -167,7 +167,7 @@ static textwindows int __proc_wait(int pid, int *wstatus, int options,
}
__proc_unlock();
if (wi == 1) {
// __sig_cancel() woke our semaphore
// __sig_wake() woke our semaphore
continue;
} else {
// neither posix or win32 define i/o error conditions for