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Introduce interprocess signaling on Windows

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This change gets rsync working without any warning or errors. On Windows
we now create a bunch of C:\var\sig\x\y.pid shared memory files, so sigs
can be delivered between processes. WinMain() creates this file when the
process starts. If the program links signaling system calls then we make
a thread at startup too, which allows asynchronous delivery each quantum
and cancelation points can spot these signals potentially faster on wait

See #1240
This commit is contained in:
Justine Tunney 2024-09-19 03:02:13 -07:00
parent 8527462b95
commit 0d74673213
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GPG key ID: BE714B4575D6E328
22 changed files with 302 additions and 62 deletions
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4
test/libc/proc/handkill_test.c
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@ -125,8 +125,6 @@ TEST(handkill, thread2thread_async) {
}
TEST(handkill, process_async) {
if (IsWindows())
return;
SPAWN(fork);
shm->ready = true;
while (!shm->got_signal)
@ -142,8 +140,6 @@ TEST(handkill, process_async) {
}
TEST(handkill, process_pause) {
if (IsWindows())
return;
SPAWN(fork);
shm->ready = true;
pause();