/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
│                                                                              │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
│ PERFORMANCE OF THIS SOFTWARE.                                                │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/internal.h"
#include "libc/calls/sig.internal.h"
#include "libc/calls/strace.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/nt/errors.h"
#include "libc/nt/synchronization.h"
#include "libc/sysv/errfuns.h"

textwindows int sys_pause_nt(void) {
  long ms, totoms;
  ms = 0;
  totoms = 0;
  for (;;) {

    if (_check_interrupts(false, g_fds.p)) {
      return eintr();
    }

    if (SleepEx(__SIG_POLLING_INTERVAL_MS, true) == kNtWaitIoCompletion) {
      POLLTRACE("IOCP EINTR");  // in case we ever figure it out
      continue;
    }

#if defined(SYSDEBUG) && defined(_POLLTRACE)
    ms += __SIG_POLLING_INTERVAL_MS;
    if (ms >= __SIG_LOGGING_INTERVAL_MS) {
      totoms += ms, ms = 0;
      POLLTRACE("... pausing for %'lums...", totoms);
    }
#endif
  }
}