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/*
* Copyright (c) 2014 Justus Winter <4winter@informatik.uni-hamburg.de>
*
* Permission to use, copy, modify, and 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.
*/
#define _GNU_SOURCE
#include <hurd.h>
#include <error.h>
#include <mach.h>
#include <stdio.h>
#include <stdlib.h>
static mach_msg_header_t send_buffer = {
.msgh_bits = MACH_MSGH_BITS_REMOTE(MACH_MSG_TYPE_MAKE_SEND),
};
error_t
send_empty (mach_port_t server)
{
send_buffer.msgh_remote_port = server;
return mach_msg (&send_buffer,
MACH_SEND_MSG|MACH_MSG_OPTION_NONE,
sizeof (send_buffer),
0,
MACH_PORT_NULL,
MACH_MSG_TIMEOUT_NONE,
MACH_PORT_NULL);
}
static mach_msg_header_t receive_buffer = {
.msgh_size = sizeof (receive_buffer),
};
error_t
receive_empty (mach_port_t port)
{
return mach_msg (&receive_buffer,
MACH_RCV_MSG|MACH_MSG_OPTION_NONE,
0,
sizeof (receive_buffer),
port,
MACH_MSG_TIMEOUT_NONE,
MACH_PORT_NULL);
}
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