Specifies the number of seconds of inactivity after which TCP
should send a keepalive message to the client. A value of 0 uses
the system default.
- This parameter is supported only on systems that support the
- <symbol>TCP_KEEPIDLE</> or <symbol>TCP_KEEPALIVE</> symbols, and on
+ This parameter is supported only on systems that support
+ <symbol>TCP_KEEPIDLE</> or an equivalent socket option, and on
Windows; on other systems, it must be zero.
In sessions connected via a Unix-domain socket, this parameter is
ignored and always reads as zero.
Specifies the number of seconds after which a TCP keepalive message
that is not acknowledged by the client should be retransmitted.
A value of 0 uses the system default.
- This parameter is supported only on systems that support the
- <symbol>TCP_KEEPINTVL</> symbol, and on Windows; on other systems, it
- must be zero.
+ This parameter is supported only on systems that support
+ <symbol>TCP_KEEPINTVL</> or an equivalent socket option, and on
+ Windows; on other systems, it must be zero.
In sessions connected via a Unix-domain socket, this parameter is
ignored and always reads as zero.
</para>
<listitem>
<para>
Specifies the number of TCP keepalives that can be lost before
- the server's connection to the client is considered dead. A value of 0
- uses the system default. This parameter is
- supported only on systems that support the <symbol>TCP_KEEPCNT</>
- symbol; on other systems, it must be zero.
+ the server's connection to the client is considered dead.
+ A value of 0 uses the system default.
+ This parameter is supported only on systems that support
+ <symbol>TCP_KEEPCNT</> or an equivalent socket option;
+ on other systems, it must be zero.
In sessions connected via a Unix-domain socket, this parameter is
ignored and always reads as zero.
</para>
Controls the number of seconds of inactivity after which TCP should
send a keepalive message to the server. A value of zero uses the
system default. This parameter is ignored for connections made via a
- Unix-domain socket, or if keepalives are disabled. It is only supported
- on systems where the <symbol>TCP_KEEPIDLE</> or <symbol>TCP_KEEPALIVE</>
- socket option is available, and on Windows; on other systems, it has no
- effect.
+ Unix-domain socket, or if keepalives are disabled.
+ It is only supported on systems where <symbol>TCP_KEEPIDLE</> or
+ an equivalent socket option is available, and on Windows; on other
+ systems, it has no effect.
</para>
</listitem>
</varlistentry>
that is not acknowledged by the server should be retransmitted. A
value of zero uses the system default. This parameter is ignored for
connections made via a Unix-domain socket, or if keepalives are disabled.
- It is only supported on systems where the <symbol>TCP_KEEPINTVL</>
- socket option is available, and on Windows; on other systems, it has no
- effect.
+ It is only supported on systems where <symbol>TCP_KEEPINTVL</> or
+ an equivalent socket option is available, and on Windows; on other
+ systems, it has no effect.
</para>
</listitem>
</varlistentry>
client's connection to the server is considered dead. A value of
zero uses the system default. This parameter is ignored for
connections made via a Unix-domain socket, or if keepalives are disabled.
- It is only supported on systems where the <symbol>TCP_KEEPCNT</>
- socket option is available; on other systems, it has no effect.
+ It is only supported on systems where <symbol>TCP_KEEPCNT</> or
+ an equivalent socket option is available; on other systems, it has no
+ effect.
</para>
</listitem>
</varlistentry>
#include "utils/guc.h"
#include "utils/memutils.h"
+/*
+ * Cope with the various platform-specific ways to spell TCP keepalive socket
+ * options. This doesn't cover Windows, which as usual does its own thing.
+ */
+#if defined(TCP_KEEPIDLE)
+/* TCP_KEEPIDLE is the name of this option on Linux and *BSD */
+#define PG_TCP_KEEPALIVE_IDLE TCP_KEEPIDLE
+#define PG_TCP_KEEPALIVE_IDLE_STR "TCP_KEEPIDLE"
+#elif defined(TCP_KEEPALIVE_THRESHOLD)
+/* TCP_KEEPALIVE_THRESHOLD is the name of this option on Solaris >= 11 */
+#define PG_TCP_KEEPALIVE_IDLE TCP_KEEPALIVE_THRESHOLD
+#define PG_TCP_KEEPALIVE_IDLE_STR "TCP_KEEPALIVE_THRESHOLD"
+#elif defined(TCP_KEEPALIVE) && defined(__darwin__)
+/* TCP_KEEPALIVE is the name of this option on macOS */
+/* Caution: Solaris has this symbol but it means something different */
+#define PG_TCP_KEEPALIVE_IDLE TCP_KEEPALIVE
+#define PG_TCP_KEEPALIVE_IDLE_STR "TCP_KEEPALIVE"
+#endif
+
/*
* Configuration options
*/
if (setsockopt(port->sock, IPPROTO_TCP, TCP_NODELAY,
(char *) &on, sizeof(on)) < 0)
{
- elog(LOG, "setsockopt(TCP_NODELAY) failed: %m");
+ elog(LOG, "setsockopt(%s) failed: %m", "TCP_NODELAY");
return STATUS_ERROR;
}
#endif
if (setsockopt(port->sock, SOL_SOCKET, SO_KEEPALIVE,
(char *) &on, sizeof(on)) < 0)
{
- elog(LOG, "setsockopt(SO_KEEPALIVE) failed: %m");
+ elog(LOG, "setsockopt(%s) failed: %m", "SO_KEEPALIVE");
return STATUS_ERROR;
}
if (getsockopt(port->sock, SOL_SOCKET, SO_SNDBUF, (char *) &oldopt,
&optlen) < 0)
{
- elog(LOG, "getsockopt(SO_SNDBUF) failed: %m");
+ elog(LOG, "getsockopt(%s) failed: %m", "SO_SNDBUF");
return STATUS_ERROR;
}
newopt = PQ_SEND_BUFFER_SIZE * 4;
if (setsockopt(port->sock, SOL_SOCKET, SO_SNDBUF, (char *) &newopt,
sizeof(newopt)) < 0)
{
- elog(LOG, "setsockopt(SO_SNDBUF) failed: %m");
+ elog(LOG, "setsockopt(%s) failed: %m", "SO_SNDBUF");
return STATUS_ERROR;
}
}
int
pq_getkeepalivesidle(Port *port)
{
-#if defined(TCP_KEEPIDLE) || defined(TCP_KEEPALIVE_THRESHOLD) || defined(TCP_KEEPALIVE) || defined(WIN32)
+#if defined(PG_TCP_KEEPALIVE_IDLE) || defined(SIO_KEEPALIVE_VALS)
if (port == NULL || IS_AF_UNIX(port->laddr.addr.ss_family))
return 0;
#ifndef WIN32
ACCEPT_TYPE_ARG3 size = sizeof(port->default_keepalives_idle);
-#if defined(TCP_KEEPIDLE)
- /* TCP_KEEPIDLE is the name of this option on Linux and *BSD */
- if (getsockopt(port->sock, IPPROTO_TCP, TCP_KEEPIDLE,
- (char *) &port->default_keepalives_idle,
- &size) < 0)
- {
- elog(LOG, "getsockopt(TCP_KEEPIDLE) failed: %m");
- port->default_keepalives_idle = -1; /* don't know */
- }
-#elif defined(TCP_KEEPALIVE_THRESHOLD)
- /* TCP_KEEPALIVE_THRESHOLD is the name of this option on Solaris */
- if (getsockopt(port->sock, IPPROTO_TCP, TCP_KEEPALIVE_THRESHOLD,
+ if (getsockopt(port->sock, IPPROTO_TCP, PG_TCP_KEEPALIVE_IDLE,
(char *) &port->default_keepalives_idle,
&size) < 0)
{
- elog(LOG, "getsockopt(TCP_KEEPALIVE_THRESHOLD) failed: %m");
+ elog(LOG, "getsockopt(%s) failed: %m", PG_TCP_KEEPALIVE_IDLE_STR);
port->default_keepalives_idle = -1; /* don't know */
}
-#else /* must have TCP_KEEPALIVE */
- /* TCP_KEEPALIVE is the name of this option on macOS */
- if (getsockopt(port->sock, IPPROTO_TCP, TCP_KEEPALIVE,
- (char *) &port->default_keepalives_idle,
- &size) < 0)
- {
- elog(LOG, "getsockopt(TCP_KEEPALIVE) failed: %m");
- port->default_keepalives_idle = -1; /* don't know */
- }
-#endif /* KEEPIDLE/KEEPALIVE_THRESHOLD/KEEPALIVE */
#else /* WIN32 */
/* We can't get the defaults on Windows, so return "don't know" */
port->default_keepalives_idle = -1;
return STATUS_OK;
/* check SIO_KEEPALIVE_VALS here, not just WIN32, as some toolchains lack it */
-#if defined(TCP_KEEPIDLE) || defined(TCP_KEEPALIVE_THRESHOLD) || defined(TCP_KEEPALIVE) || defined(SIO_KEEPALIVE_VALS)
+#if defined(PG_TCP_KEEPALIVE_IDLE) || defined(SIO_KEEPALIVE_VALS)
if (idle == port->keepalives_idle)
return STATUS_OK;
if (idle == 0)
idle = port->default_keepalives_idle;
-#if defined(TCP_KEEPIDLE)
- /* TCP_KEEPIDLE is the name of this option on Linux and *BSD */
- if (setsockopt(port->sock, IPPROTO_TCP, TCP_KEEPIDLE,
- (char *) &idle, sizeof(idle)) < 0)
- {
- elog(LOG, "setsockopt(TCP_KEEPIDLE) failed: %m");
- return STATUS_ERROR;
- }
-#elif defined(TCP_KEEPALIVE_THRESHOLD)
- /* TCP_KEEPALIVE_THRESHOLD is the name of this option on Solaris */
- if (setsockopt(port->sock, IPPROTO_TCP, TCP_KEEPALIVE_THRESHOLD,
+ if (setsockopt(port->sock, IPPROTO_TCP, PG_TCP_KEEPALIVE_IDLE,
(char *) &idle, sizeof(idle)) < 0)
{
- elog(LOG, "setsockopt(TCP_KEEPALIVE_THRESHOLD) failed: %m");
+ elog(LOG, "setsockopt(%s) failed: %m", PG_TCP_KEEPALIVE_IDLE_STR);
return STATUS_ERROR;
}
-#else /* must have TCP_KEEPALIVE */
- /* TCP_KEEPALIVE is the name of this option on macOS */
- if (setsockopt(port->sock, IPPROTO_TCP, TCP_KEEPALIVE,
- (char *) &idle, sizeof(idle)) < 0)
- {
- elog(LOG, "setsockopt(TCP_KEEPALIVE) failed: %m");
- return STATUS_ERROR;
- }
-#endif
port->keepalives_idle = idle;
#else /* WIN32 */
return pq_setkeepaliveswin32(port, idle, port->keepalives_interval);
#endif
-#else /* no way to set it */
+#else
if (idle != 0)
{
elog(LOG, "setting the keepalive idle time is not supported");
return STATUS_ERROR;
}
#endif
+
return STATUS_OK;
}
(char *) &port->default_keepalives_interval,
&size) < 0)
{
- elog(LOG, "getsockopt(TCP_KEEPINTVL) failed: %m");
+ elog(LOG, "getsockopt(%s) failed: %m", "TCP_KEEPINTVL");
port->default_keepalives_interval = -1; /* don't know */
}
#else
if (setsockopt(port->sock, IPPROTO_TCP, TCP_KEEPINTVL,
(char *) &interval, sizeof(interval)) < 0)
{
- elog(LOG, "setsockopt(TCP_KEEPINTVL) failed: %m");
+ elog(LOG, "setsockopt(%s) failed: %m", "TCP_KEEPINTVL");
return STATUS_ERROR;
}
#else
if (interval != 0)
{
- elog(LOG, "setsockopt(TCP_KEEPINTVL) not supported");
+ elog(LOG, "setsockopt(%s) not supported", "TCP_KEEPINTVL");
return STATUS_ERROR;
}
#endif
(char *) &port->default_keepalives_count,
&size) < 0)
{
- elog(LOG, "getsockopt(TCP_KEEPCNT) failed: %m");
+ elog(LOG, "getsockopt(%s) failed: %m", "TCP_KEEPCNT");
port->default_keepalives_count = -1; /* don't know */
}
}
if (setsockopt(port->sock, IPPROTO_TCP, TCP_KEEPCNT,
(char *) &count, sizeof(count)) < 0)
{
- elog(LOG, "setsockopt(TCP_KEEPCNT) failed: %m");
+ elog(LOG, "setsockopt(%s) failed: %m", "TCP_KEEPCNT");
return STATUS_ERROR;
}
#else
if (count != 0)
{
- elog(LOG, "setsockopt(TCP_KEEPCNT) not supported");
+ elog(LOG, "setsockopt(%s) not supported", "TCP_KEEPCNT");
return STATUS_ERROR;
}
#endif
/* This too */
#define ERRCODE_CANNOT_CONNECT_NOW "57P03"
+/*
+ * Cope with the various platform-specific ways to spell TCP keepalive socket
+ * options. This doesn't cover Windows, which as usual does its own thing.
+ */
+#if defined(TCP_KEEPIDLE)
+/* TCP_KEEPIDLE is the name of this option on Linux and *BSD */
+#define PG_TCP_KEEPALIVE_IDLE TCP_KEEPIDLE
+#define PG_TCP_KEEPALIVE_IDLE_STR "TCP_KEEPIDLE"
+#elif defined(TCP_KEEPALIVE_THRESHOLD)
+/* TCP_KEEPALIVE_THRESHOLD is the name of this option on Solaris >= 11 */
+#define PG_TCP_KEEPALIVE_IDLE TCP_KEEPALIVE_THRESHOLD
+#define PG_TCP_KEEPALIVE_IDLE_STR "TCP_KEEPALIVE_THRESHOLD"
+#elif defined(TCP_KEEPALIVE) && defined(__darwin__)
+/* TCP_KEEPALIVE is the name of this option on macOS */
+/* Caution: Solaris has this symbol but it means something different */
+#define PG_TCP_KEEPALIVE_IDLE TCP_KEEPALIVE
+#define PG_TCP_KEEPALIVE_IDLE_STR "TCP_KEEPALIVE"
+#endif
+
/*
* fall back options if they are not specified by arguments or defined
* by environment variables
if (idle < 0)
idle = 0;
-#if defined(TCP_KEEPIDLE)
- /* TCP_KEEPIDLE is the name of this option on Linux and *BSD */
- if (setsockopt(conn->sock, IPPROTO_TCP, TCP_KEEPIDLE,
- (char *) &idle, sizeof(idle)) < 0)
- {
- char sebuf[256];
-
- appendPQExpBuffer(&conn->errorMessage,
- libpq_gettext("setsockopt(TCP_KEEPIDLE) failed: %s\n"),
- SOCK_STRERROR(SOCK_ERRNO, sebuf, sizeof(sebuf)));
- return 0;
- }
-#elif defined(TCP_KEEPALIVE_THRESHOLD)
- /* TCP_KEEPALIVE_THRESHOLD is the name of this option on Solaris */
- if (setsockopt(conn->sock, IPPROTO_TCP, TCP_KEEPALIVE_THRESHOLD,
- (char *) &idle, sizeof(idle)) < 0)
- {
- char sebuf[256];
-
- appendPQExpBuffer(&conn->errorMessage,
- libpq_gettext("setsockopt(TCP_KEEPALIVE_THRESHOLD) failed: %s\n"),
- SOCK_STRERROR(SOCK_ERRNO, sebuf, sizeof(sebuf)));
- return 0;
- }
-#elif defined(TCP_KEEPALIVE)
- /* TCP_KEEPALIVE is the name of this option on macOS */
- if (setsockopt(conn->sock, IPPROTO_TCP, TCP_KEEPALIVE,
+#ifdef PG_TCP_KEEPALIVE_IDLE
+ if (setsockopt(conn->sock, IPPROTO_TCP, PG_TCP_KEEPALIVE_IDLE,
(char *) &idle, sizeof(idle)) < 0)
{
char sebuf[256];
appendPQExpBuffer(&conn->errorMessage,
- libpq_gettext("setsockopt(TCP_KEEPALIVE) failed: %s\n"),
+ libpq_gettext("setsockopt(%s) failed: %s\n"),
+ PG_TCP_KEEPALIVE_IDLE_STR,
SOCK_STRERROR(SOCK_ERRNO, sebuf, sizeof(sebuf)));
return 0;
}
char sebuf[256];
appendPQExpBuffer(&conn->errorMessage,
- libpq_gettext("setsockopt(TCP_KEEPINTVL) failed: %s\n"),
+ libpq_gettext("setsockopt(%s) failed: %s\n"),
+ "TCP_KEEPINTVL",
SOCK_STRERROR(SOCK_ERRNO, sebuf, sizeof(sebuf)));
return 0;
}
char sebuf[256];
appendPQExpBuffer(&conn->errorMessage,
- libpq_gettext("setsockopt(TCP_KEEPCNT) failed: %s\n"),
+ libpq_gettext("setsockopt(%s) failed: %s\n"),
+ "TCP_KEEPCNT",
SOCK_STRERROR(SOCK_ERRNO, sebuf, sizeof(sebuf)));
return 0;
}
(char *) &on, sizeof(on)) < 0)
{
appendPQExpBuffer(&conn->errorMessage,
- libpq_gettext("setsockopt(SO_KEEPALIVE) failed: %s\n"),
+ libpq_gettext("setsockopt(%s) failed: %s\n"),
+ "SO_KEEPALIVE",
SOCK_STRERROR(SOCK_ERRNO, sebuf, sizeof(sebuf)));
err = 1;
}
projects / postgresql / commitdiff