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Fix ECHILD with WNOHANG on Windows

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This change along with a patch for rsync's safe_write() function that'll
that'll soon be added to superconfigure, gets rsync working. There's one
remaining issue (which isn't a blocker) which is how rsync logs an error
about abnormal process termination since there's currently no way for us
to send non-fatal signals between processes. rsync in cosmos is restored

Fixes #1240
This commit is contained in:
Justine Tunney 2024-09-18 23:20:02 -07:00
parent 8313dca982
commit 8527462b95
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GPG key ID: BE714B4575D6E328
2 changed files with 79 additions and 7 deletions
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16
libc/proc/wait4-nt.c
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@ -88,18 +88,20 @@ static textwindows int __proc_wait(int pid, int *wstatus, int options,
__proc_lock();
CheckForZombies:
int rc = __proc_check(pid, wstatus, rusage);
// if there's no zombies left
// check if there's any living processes
if (!rc && dll_is_empty(__proc.list)) {
__proc_unlock();
return echild();
}
// otherwise return zombie or zero
if (rc || (options & WNOHANG)) {
__proc_unlock();
return rc;
}
// there's no zombies left
// check if there's any living processes
if (dll_is_empty(__proc.list)) {
__proc_unlock();
return echild();
}
// get appropriate wait object
// register ourself as waiting
struct Proc *pr = 0;