blob: 1e0fdddc892b4e05d3994459b5d4f40231c68bcf (
plain)
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
|
/*-------------------------------------------------------------------------
*
* libpq_be.h
* This file contains definitions for structures and externs used
* by the postmaster during client authentication.
*
* Note that this is backend-internal and is NOT exported to clients.
* Structs that need to be client-visible are in pqcomm.h.
*
*
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
* Portions Copyright (c) 2010-2012 Postgres-XC Development Group
*
* $PostgreSQL: pgsql/src/include/libpq/libpq-be.h,v 1.69 2009/01/01 17:23:59 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef LIBPQ_BE_H
#define LIBPQ_BE_H
#include "gtm/pqcomm.h"
#include "gtm/gtm_c.h"
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_NETINET_TCP_H
#include <netinet/tcp.h>
#endif
/*
* This is used by the postmaster in its communication with frontends. It
* contains all state information needed during this communication before the
* backend is run. The Port structure is kept in malloc'd memory and is
* still available when a backend is running (see MyProcPort). The data
* it points to must also be malloc'd, or else palloc'd in TopMostMemoryContext,
* so that it survives into GTM_ThreadMain execution!
*/
typedef struct Port
{
int sock; /* File descriptor */
SockAddr laddr; /* local addr (postmaster) */
SockAddr raddr; /* remote addr (client) */
char *remote_host; /* name (or ip addr) of remote host */
char *remote_port; /* text rep of remote port */
GTM_PortLastCall last_call; /* Last syscall to this port */
int last_errno; /* Last errno. zero if the last call succeeds */
GTMProxy_ConnID conn_id; /* RequestID of this command */
GTM_PGXCNodeType remote_type; /* Type of remote connection */
char *node_name;
bool is_postmaster; /* Is remote a node postmaster? */
#define PQ_BUFFER_SIZE 8192
char PqSendBuffer[PQ_BUFFER_SIZE];
int PqSendPointer; /* Next index to store a byte in PqSendBuffer */
char PqRecvBuffer[PQ_BUFFER_SIZE];
int PqRecvPointer; /* Next index to read a byte from PqRecvBuffer */
int PqRecvLength; /* End of data available in PqRecvBuffer */
/*
* TCP keepalive settings.
*
* default values are 0 if AF_UNIX or not yet known; current values are 0
* if AF_UNIX or using the default. Also, -1 in a default value means we
* were unable to find out the default (getsockopt failed).
*/
int default_keepalives_idle;
int default_keepalives_interval;
int default_keepalives_count;
int keepalives_idle;
int keepalives_interval;
int keepalives_count;
/*
* GTM communication error handling. See libpq-int.h for details.
*/
int connErr_WaitOpt;
int connErr_WaitInterval;
int connErr_WaitCount;
} Port;
/* TCP keepalives configuration. These are no-ops on an AF_UNIX socket. */
extern int pq_getkeepalivesidle(Port *port);
extern int pq_getkeepalivesinterval(Port *port);
extern int pq_getkeepalivescount(Port *port);
extern int pq_setkeepalivesidle(int idle, Port *port);
extern int pq_setkeepalivesinterval(int interval, Port *port);
extern int pq_setkeepalivescount(int count, Port *port);
#endif /* LIBPQ_BE_H */
|
