cosmopolitan/libc/intrin/waitformultipleobjects.c

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et 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/syscall_support-nt.internal.h"
#include "libc/intrin/strace.h"
#include "libc/nt/runtime.h"
#include "libc/nt/synchronization.h"
#include "libc/nt/thunk/msabi.h"

__msabi extern typeof(WaitForMultipleObjects)
    *const __imp_WaitForMultipleObjects;

/**
 * Waits for handles to change status.
 *
 * @return -1u on error w/ GetLastError()
 * @raise kNtErrorInvalidParameter if `bWaitAll` and `lpHandles` has dupes
 */
uint32_t WaitForMultipleObjects(uint32_t nCount, const int64_t *lpHandles,
                                bool32 bWaitAll, uint32_t dwMilliseconds) {
  uint32_t x;
  x = __imp_WaitForMultipleObjects(nCount, lpHandles, bWaitAll, dwMilliseconds);
  POLLTRACE("WaitForMultipleObjects(%ld, %p, %hhhd, %'d) → %d %d", nCount,
            lpHandles, bWaitAll, dwMilliseconds, x, GetLastError());
  return x;
}