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Put more thought into i/o polyfills

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wait4() is now solid enough to run `make -j100` on Windows. You can now
use MSG_DONTWAIT on Windows. There was a handle leak in accept() that's
been fixed. Our WIN32 overlapped i/o code has been simplified. Priority
class now inherits into subprocesses, so the verynice command will work
and the signal mask will now be inherited by execve() and posix_spawn()
This commit is contained in:
Justine Tunney 2023-11-06 16:38:44 -08:00
parent 736fdb757a
commit e961385e55
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GPG key ID: BE714B4575D6E328
52 changed files with 679 additions and 487 deletions
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15
libc/proc/posix_spawnattr_setflags.c
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@ -32,15 +32,20 @@
* - `POSIX_SPAWN_SETSCHEDPARAM`
* - `POSIX_SPAWN_SETSCHEDULER`
* - `POSIX_SPAWN_SETSID`
* - `POSIX_SPAWN_SETRLIMIT`
* @return 0 on success, or errno on error
* @raise EINVAL if `flags` has invalid bits
*/
int posix_spawnattr_setflags(posix_spawnattr_t *attr, short flags) {
if (flags &
~(POSIX_SPAWN_USEVFORK | POSIX_SPAWN_RESETIDS | POSIX_SPAWN_SETPGROUP |
POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK |
POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETSCHEDULER |
POSIX_SPAWN_SETSID | POSIX_SPAWN_SETRLIMIT)) {
if (flags & ~(POSIX_SPAWN_USEVFORK | //
POSIX_SPAWN_RESETIDS | //
POSIX_SPAWN_SETPGROUP | //
POSIX_SPAWN_SETSIGDEF | //
POSIX_SPAWN_SETSIGMASK | //
POSIX_SPAWN_SETSCHEDPARAM | //
POSIX_SPAWN_SETSCHEDULER | //
POSIX_SPAWN_SETSID | //
POSIX_SPAWN_SETRLIMIT)) {
return EINVAL;
}
(*attr)->flags = flags;