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Add '-c name=val' flag for setting run-time parameters.

This commit is contained in:
Peter Eisentraut 2000-11-08 17:57:46 +00:00
parent 3304341700
commit 929a599369
3 changed files with 27 additions and 13 deletions
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6
doc/src/sgml/runtime.sgml
View File

@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.31 2000/11/01 21:14:00 petere Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.32 2000/11/08 17:57:45 petere Exp $
-->
<Chapter Id="runtime">
@ -411,7 +411,7 @@ syslog = 2
A second way to set these configuration parameters is to give them
as a command line option to the postmaster, such as
<programlisting>
postmaster --log-connections=yes --syslog=2
postmaster -c log_connections=yes -c syslog=2
</programlisting>
which would have the same effect as the previous example.
</para>
@ -422,7 +422,7 @@ postmaster --log-connections=yes --syslog=2
<envar>PGOPTIONS</envar> can be used for this purpose on the
client side:
<programlisting>
env PGOPTIONS='--geqo=off' psql
env PGOPTIONS='-c geqo=off' psql
</programlisting>
(This works for any client application, not just
<application>psql</application>.) Note that this won't work for

19
src/backend/postmaster/postmaster.c
View File

@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.179 2000/11/06 22:18:06 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.180 2000/11/08 17:57:46 petere Exp $
*
* NOTES
*
@ -372,7 +372,7 @@ PostmasterMain(int argc, char *argv[])
* will occur.
*/
opterr = 1;
while ((opt = getopt(argc, argv, "A:a:B:b:D:d:Film:MN:no:p:SsV-:?")) != EOF)
while ((opt = getopt(argc, argv, "A:a:B:b:c:D:d:Film:MN:no:p:SsV-:?")) != EOF)
{
switch(opt)
{
@ -428,7 +428,7 @@ PostmasterMain(int argc, char *argv[])
#ifdef HAVE_INT_OPTRESET
optreset = 1;
#endif
while ((opt = getopt(argc, argv, "A:a:B:b:D:d:Film:MN:no:p:SsV-:?")) != EOF)
while ((opt = getopt(argc, argv, "A:a:B:b:c:D:d:Film:MN:no:p:SsV-:?")) != EOF)
{
switch (opt)
{
@ -530,13 +530,19 @@ PostmasterMain(int argc, char *argv[])
*/
SendStop = true;
break;
case 'c':
case '-':
{
char *name, *value;
ParseLongOption(optarg, &name, &value);
if (!value)
elog(ERROR, "--%s requires argument", optarg);
{
if (opt == '-')
elog(ERROR, "--%s requires argument", optarg);
else
elog(ERROR, "-c %s requires argument", optarg);
}
SetConfigOption(name, value, PGC_POSTMASTER);
free(name);
@ -766,6 +772,7 @@ usage(const char *progname)
printf(" -A 1|0 enable/disable runtime assert checking\n");
#endif
printf(" -B <buffers> number of shared buffers\n");
printf(" -c <name>=<value> set run-time parameter\n");
printf(" -d 1-5 debugging level\n");
printf(" -D <directory> database directory\n");
printf(" -F turn fsync off\n");
@ -775,7 +782,7 @@ usage(const char *progname)
#endif
printf(" -N <number> maximum number of allowed connections (1..%d, default %d)\n",
MAXBACKENDS, DEF_MAXBACKENDS);
printf(" -o <option> pass `option' to each backend server\n");
printf(" -o <option> pass 'option' to each backend server\n");
printf(" -p <port> port number to listen on\n");
printf(" -S silent mode (dissociate from tty)\n");
@ -783,7 +790,7 @@ usage(const char *progname)
printf(" -n don't reinitialize shared memory after abnormal exit\n");
printf(" -s send SIGSTOP to all backend servers if one dies\n");
printf("\nPlease read the documentation for the complete list of runtime\n"
printf("\nPlease read the documentation for the complete list of run-time\n"
"configuration settings and how to set them on the command line or in\n"
"the configuration file.\n\n");

15
src/backend/tcop/postgres.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.186 2000/11/06 22:18:08 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.187 2000/11/08 17:57:46 petere Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@ -1010,6 +1010,7 @@ usage(char *progname)
fprintf(stderr, "\t-A on\t\tenable/disable assert checking\n");
#endif
fprintf(stderr, "\t-B buffers\tset number of buffers in buffer pool\n");
fprintf(stderr, "\t-c name=value\tset run-time parameter\n");
fprintf(stderr, "\t-C \t\tsuppress version info\n");
fprintf(stderr, "\t-D dir\t\tdata directory\n");
fprintf(stderr, "\t-E \t\techo query before execution\n");
@ -1112,7 +1113,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[], const cha
optind = 1; /* reset after postmaster's usage */
while ((flag = getopt(argc, argv, "A:B:CD:d:Eef:FiLNOPo:p:S:st:v:VW:x:-:?")) != EOF)
while ((flag = getopt(argc, argv, "A:B:c:CD:d:Eef:FiLNOPo:p:S:st:v:VW:x:-:?")) != EOF)
switch (flag)
{
case 'A':
@ -1383,6 +1384,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[], const cha
#endif
break;
case 'c':
case '-':
{
char *name, *value;
@ -1399,7 +1401,12 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[], const cha
exit(0);
}
if (!value)
elog(ERROR, "--%s requires argument", optarg);
{
if (flag == '-')
elog(ERROR, "--%s requires argument", optarg);
else
elog(ERROR, "-c %s requires argument", optarg);
}
SetConfigOption(name, value, PGC_BACKEND);
free(name);
@ -1639,7 +1646,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[], const cha
if (!IsUnderPostmaster)
{
puts("\nPOSTGRES backend interactive interface ");
puts("$Revision: 1.186 $ $Date: 2000/11/06 22:18:08 $\n");
puts("$Revision: 1.187 $ $Date: 2000/11/08 17:57:46 $\n");
}
/*