1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/*
* Worldvisions Weaver Software:
* Copyright (C) 1997-2002 Net Integration Technologies, Inc.
*
* Implementation of the WvLoopback stream. WvLoopback uses a
* socketpair() to create a stream that allows you to read()
* everything written to it, even (especially) across a fork() call.
*/
#include "wvloopback.h"
#ifndef _WIN32
#include <sys/socket.h>
#else
#include <io.h>
#endif
#include <fcntl.h>
#ifdef _WIN32
int socketpair (int family, int type, int protocol, int *sb);
#endif
WvLoopback::WvLoopback()
{
int socks[2];
if (socketpair(AF_UNIX, SOCK_STREAM, 0, socks))
{
seterr(errno);
return;
}
rfd = socks[0];
wfd = socks[1];
#ifndef _WIN32
fcntl(rfd, F_SETFD, 1);
fcntl(rfd, F_SETFL, O_RDONLY|O_NONBLOCK);
fcntl(wfd, F_SETFD, 1);
fcntl(wfd, F_SETFL, O_WRONLY|O_NONBLOCK);
#else
u_long arg = 1;
ioctlsocket(rfd, FIONBIO, &arg); // non-blocking
ioctlsocket(wfd, FIONBIO, &arg); // non-blocking
#endif
}
|
