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Add GUC variables to control keep-alive times for idle, interval, and

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count.

Oliver Jowett
This commit is contained in:
Bruce Momjian
2005-07-30 15:17:26 +00:00
parent b2b6548c79
commit 1f54d43075
7 changed files with 399 additions and 7 deletions
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96
src/backend/utils/misc/guc.c
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@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.279 2005/07/29 19:30:07 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.280 2005/07/30 15:17:20 momjian Exp $
*
*--------------------------------------------------------------------
*/
@ -120,6 +120,12 @@ static bool assign_log_stats(bool newval, bool doit, GucSource source);
static bool assign_transaction_read_only(bool newval, bool doit, GucSource source);
static const char *assign_canonical_path(const char *newval, bool doit, GucSource source);
static bool assign_tcp_keepalives_idle(int newval, bool doit, GucSource source);
static bool assign_tcp_keepalives_interval(int newval, bool doit, GucSource source);
static bool assign_tcp_keepalives_count(int newval, bool doit, GucSource source);
static const char *show_tcp_keepalives_idle(void);
static const char *show_tcp_keepalives_interval(void);
static const char *show_tcp_keepalives_count(void);
/*
* GUC option variables that are exported from this module
@ -161,6 +167,9 @@ char *HbaFileName;
char *IdentFileName;
char *external_pid_file;
int tcp_keepalives_idle;
int tcp_keepalives_interval;
int tcp_keepalives_count;
/*
* These variables are all dummies that don't do anything, except in some
@ -1437,6 +1446,35 @@ static struct config_int ConfigureNamesInt[] =
500, 0, INT_MAX, NULL, NULL
},
{
{"tcp_keepalives_idle", PGC_USERSET, CLIENT_CONN_OTHER,
gettext_noop("Seconds between issuing TCP keepalives."),
gettext_noop("A value of 0 uses the system default."),
},
&tcp_keepalives_idle,
0, 0, INT_MAX, assign_tcp_keepalives_idle, show_tcp_keepalives_idle
},
{
{"tcp_keepalives_interval", PGC_USERSET, CLIENT_CONN_OTHER,
gettext_noop("Seconds between TCP keepalive retransmits."),
gettext_noop("A value of 0 uses the system default."),
},
&tcp_keepalives_interval,
0, 0, INT_MAX, assign_tcp_keepalives_interval, show_tcp_keepalives_interval
},
{
{"tcp_keepalives_count", PGC_USERSET, CLIENT_CONN_OTHER,
gettext_noop("Maximum number of TCP keepalive retransmits."),
gettext_noop("This controls the number of consecutive keepalive retransmits that can be "
"lost before a connection is considered dead. A value of 0 uses the "
"system default."),
},
&tcp_keepalives_count,
0, 0, INT_MAX, assign_tcp_keepalives_count, show_tcp_keepalives_count
},
/* End-of-list marker */
{
{NULL, 0, 0, NULL, NULL}, NULL, 0, 0, 0, NULL, NULL
@ -5815,5 +5853,61 @@ assign_canonical_path(const char *newval, bool doit, GucSource source)
return newval;
}
static bool
assign_tcp_keepalives_idle(int newval, bool doit, GucSource source)
{
if (doit && MyProcPort != NULL)
{
return (pq_setkeepalivesidle(newval, MyProcPort) == STATUS_OK);
}
return true;
}
static const char *
show_tcp_keepalives_idle(void)
{
static char nbuf[32];
snprintf(nbuf, sizeof(nbuf), "%d", MyProcPort == NULL ? 0 : pq_getkeepalivesidle(MyProcPort));
return nbuf;
}
static bool
assign_tcp_keepalives_interval(int newval, bool doit, GucSource source)
{
if (doit && MyProcPort != NULL)
{
return (pq_setkeepalivesinterval(newval, MyProcPort) == STATUS_OK);
}
return true;
}
static const char *
show_tcp_keepalives_interval(void)
{
static char nbuf[32];
snprintf(nbuf, sizeof(nbuf), "%d", MyProcPort == NULL ? 0 : pq_getkeepalivesinterval(MyProcPort));
return nbuf;
}
static bool
assign_tcp_keepalives_count(int newval, bool doit, GucSource source)
{
if (doit && MyProcPort != NULL)
{
return (pq_setkeepalivescount(newval, MyProcPort) == STATUS_OK);
}
return true;
}
static const char *
show_tcp_keepalives_count(void)
{
static char nbuf[32];
snprintf(nbuf, sizeof(nbuf), "%d", MyProcPort == NULL ? 0 : pq_getkeepalivescount(MyProcPort));
return nbuf;
}
#include "guc-file.c"