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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*-------------------------------------------------------------------------
*
* pipe.c
* pipe()
*
* Copyright (c) 1996-2009, PostgreSQL Global Development Group
*
* This is a replacement version of pipe for Win32 which allows
* returned handles to be used in select(). Note that read/write calls
* must be replaced with recv/send.
*
*
*
*-------------------------------------------------------------------------
*/
#include<pthread.h>
#include "slon.h"
#include "misc.h"
#ifdef WIN32
int
pgpipe(int handles[2])
{
SOCKET s;
struct sockaddr_in serv_addr;
int len = sizeof(serv_addr);
handles[0] = handles[1] = INVALID_SOCKET;
if ((s = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
{
slon_log(SLON_ERROR, "pgpipe: failed to create socket: %ui", WSAGetLastError());
return -1;
}
memset((void *) &serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(0);
serv_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (bind(s, (SOCKADDR *) & serv_addr, len) == SOCKET_ERROR)
{
slon_log(SLON_ERROR, "pgpipe: failed to bind: %ui", WSAGetLastError());
closesocket(s);
return -1;
}
if (listen(s, 1) == SOCKET_ERROR)
{
slon_log(SLON_ERROR, "pgpipe: failed to listen: %ui", WSAGetLastError());
closesocket(s);
return -1;
}
if (getsockname(s, (SOCKADDR *) & serv_addr, &len) == SOCKET_ERROR)
{
slon_log(SLON_ERROR, "pgpipe: failed to getsockname: %ui", WSAGetLastError());
closesocket(s);
return -1;
}
if ((handles[1] = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
{
slon_log(SLON_ERROR, "pgpipe: failed to create socket 2: %ui", WSAGetLastError());
closesocket(s);
return -1;
}
if (connect(handles[1], (SOCKADDR *) & serv_addr, len) == SOCKET_ERROR)
{
slon_log(SLON_ERROR, "pgpipe: filed to connect socket: %ui", WSAGetLastError());
closesocket(s);
return -1;
}
if ((handles[0] = accept(s, (SOCKADDR *) & serv_addr, &len)) == INVALID_SOCKET)
{
slon_log(SLON_ERROR, "pgpipe: failed to accept socket: %ui", WSAGetLastError());
closesocket(handles[1]);
handles[1] = INVALID_SOCKET;
closesocket(s);
return -1;
}
closesocket(s);
return 0;
}
int
piperead(int s, char *buf, int len)
{
int ret = recv(s, buf, len, 0);
if (ret < 0 && WSAGetLastError() == WSAECONNRESET)
/* EOF on the pipe! (win32 socket based implementation) */
ret = 0;
return ret;
}
int pipewrite(int s, const char * buf, int len)
{
int ret = send(s,buf,len,0);
if( ret < 0 && WSAGetLastError() == WSAECONNRESET)
ret=0;
return ret;
}
#endif
|
