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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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6
libc/proc/posix_spawnattr_setsigdefault.c
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@ -16,8 +16,6 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/sigset.h"
#include "libc/proc/posix_spawn.h"
#include "libc/proc/posix_spawn.internal.h"
/**
@ -32,13 +30,13 @@
* set the signals to `SIG_IGN` earlier (since posix_spawn() will not
* issue O(128) system calls just to be totally pedantic about that).
*
* Using this setter automatically sets `POSIX_SPAWN_SETSIGDEF`.
* You also need to pass `POSIX_SPAWN_SETSIGDEF` to
* posix_spawnattr_setflags() for it to take effect.
*
* @return 0 on success, or errno on error
*/
int posix_spawnattr_setsigdefault(posix_spawnattr_t *attr,
const sigset_t *sigdefault) {
(*attr)->flags |= POSIX_SPAWN_SETSIGDEF;
(*attr)->sigdefault = *sigdefault;
return 0;
}