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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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4
libc/calls/poll-nt.c
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@ -55,6 +55,8 @@
#include "libc/thread/tls.h"
#ifdef __x86_64__
#define POLL_INTERVAL_MS 10
// Polls on the New Technology.
//
// This function is used to implement poll() and select(). You may poll
@ -184,7 +186,7 @@ static textwindows int sys_poll_nt_impl(struct pollfd *fds, uint64_t nfds,
remain = timespec_sub(deadline, now);
millis = timespec_tomillis(remain);
waitfor = MIN(millis, 0xffffffffu);
waitfor = MIN(waitfor, __SIG_POLL_INTERVAL_MS);
waitfor = MIN(waitfor, POLL_INTERVAL_MS);
if (waitfor) {
POLLTRACE("poll() sleeping for %'d out of %'lu ms", waitfor,
timespec_tomillis(remain));