sysdeps/mach/htl/pt-block.c

   1 /* Block a thread.  Mach version.
   2    Copyright (C) 2000-2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library;  if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <assert.h>
  20 #include <errno.h>
  21
  22 #include <mach.h>
  23 #include <mach/message.h>
  24
  25 #include <pt-internal.h>
  26
  27 /* Block THREAD.  */
  28 void
  29 __pthread_block (struct __pthread *thread)
  30 {
  31   mach_msg_header_t msg;
  32   error_t err;
  33
  34   err = __mach_msg (&msg, MACH_RCV_MSG, 0, sizeof msg,
  35                     thread->wakeupmsg.msgh_remote_port,
  36                     MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL);
  37   assert_perror (err);
  38 }