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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 1998-2016. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*
*/
#ifdef __WIN32__
#include <winsock2.h>
#include <windows.h>
#include <winbase.h>
#elif VXWORKS
#include <unistd.h>
#else /* unix */
#include <unistd.h>
#endif
#include <string.h>
#include <stdlib.h>
#include "eidef.h"
#include "eiext.h"
#include "eisend.h"
#include "ei_internal.h"
#include "putget.h"
#include "erl_rport.h"
/* this sends either link or unlink ('which' decides) */
static int link_unlink(int fd, const erlang_pid *from, const erlang_pid *to,
int which, unsigned ms)
{
char msgbuf[EISMALLBUF];
char *s;
int index = 0;
int n;
unsigned tmo = ms == 0 ? EI_SCLBK_INF_TMO : ms;
index = 5; /* max sizes: */
ei_encode_version(msgbuf,&index); /* 1 */
ei_encode_tuple_header(msgbuf,&index,3);
ei_encode_long(msgbuf,&index,which);
ei_encode_pid(msgbuf,&index,from); /* 268 */
ei_encode_pid(msgbuf,&index,to); /* 268 */
/* 5 byte header missing */
s = msgbuf;
put32be(s, index - 4); /* 4 */
put8(s, ERL_PASS_THROUGH); /* 1 */
/* sum: 542 */
#ifdef DEBUG_DIST
if (ei_trace_distribution > 1) ei_show_sendmsg(stderr,msgbuf,NULL);
#endif
n = ei_write_fill_t__(fd,msgbuf,index,tmo);
return (n==index ? 0 : -1);
}
/* FIXME not used? */
#if 0
/* use this to send a link */
int ei_send_unlink(int fd, const erlang_pid *from, const erlang_pid *to)
{
return link_unlink(fd, from, to, ERL_UNLINK,0);
}
/* use this to send an unlink */
int ei_send_link(int fd, const erlang_pid *from, const erlang_pid *to)
{
return link_unlink(fd, from, to, ERL_LINK,0);
}
/* use this to send a link */
int ei_send_unlink_tmo(int fd, const erlang_pid *from, const erlang_pid *to,
unsigned ms)
{
return link_unlink(fd, from, to, ERL_UNLINK,ms);
}
/* use this to send an unlink */
int ei_send_link_tmo(int fd, const erlang_pid *from, const erlang_pid *to,
unsigned ms)
{
return link_unlink(fd, from, to, ERL_LINK,ms);
}
#endif
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