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Commit36fa297

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committed
SECOND ATTEMPT
Dump/read non-default GUC values for use by exec'ed backend, for Win32.
1 parent9f0d69f commit36fa297

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3 files changed

+255
-33
lines changed

3 files changed

+255
-33
lines changed

‎src/backend/postmaster/postmaster.c

Lines changed: 46 additions & 31 deletions
Original file line numberDiff line numberDiff line change
@@ -37,7 +37,7 @@
3737
*
3838
*
3939
* IDENTIFICATION
40-
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.318 2003/05/02 22:01:51 momjian Exp $
40+
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.319 2003/05/02 22:02:47 momjian Exp $
4141
*
4242
* NOTES
4343
*
@@ -256,11 +256,12 @@ static void dummy_handler(SIGNAL_ARGS);
256256
staticvoidCleanupProc(intpid,intexitstatus);
257257
staticvoidLogChildExit(intlev,constchar*procname,
258258
intpid,intexitstatus);
259-
staticintDoBackend(Port*port);
259+
staticintBackendFinalize(Port*port);
260260
voidExitPostmaster(intstatus);
261261
staticvoidusage(constchar*);
262262
staticintServerLoop(void);
263263
staticintBackendStartup(Port*port);
264+
staticvoidBackendFork(Port*port,Backend*bn);
264265
staticintProcessStartupPacket(Port*port,boolSSLdone);
265266
staticvoidprocessCancelRequest(Port*port,void*pkt);
266267
staticintinitMasks(fd_set*rmask,fd_set*wmask);
@@ -570,6 +571,9 @@ PostmasterMain(int argc, char *argv[])
570571
SetDataDir(potential_DataDir);
571572

572573
ProcessConfigFile(PGC_POSTMASTER);
574+
#ifdefEXEC_BACKEND
575+
write_nondefault_variables(PGC_POSTMASTER);
576+
#endif
573577

574578
/*
575579
* Check for invalid combinations of GUC settings.
@@ -1231,7 +1235,7 @@ ProcessStartupPacket(Port *port, bool SSLdone)
12311235
* Now fetch parameters out of startup packet and save them into the
12321236
* Port structure. All data structures attached to the Port struct
12331237
* must be allocated in TopMemoryContext so that they won't disappear
1234-
* when we pass them to PostgresMain (seeDoBackend). We need not worry
1238+
* when we pass them to PostgresMain (seeBackendFinalize). We need not worry
12351239
* about leaking this storage on failure, since we aren't in the postmaster
12361240
* process anymore.
12371241
*/
@@ -1568,6 +1572,9 @@ SIGHUP_handler(SIGNAL_ARGS)
15681572
elog(LOG,"Received SIGHUP, reloading configuration files");
15691573
SignalChildren(SIGHUP);
15701574
ProcessConfigFile(PGC_SIGHUP);
1575+
#ifdefEXEC_BACKEND
1576+
write_nondefault_variables(PGC_SIGHUP);
1577+
#endif
15711578
load_hba();
15721579
load_ident();
15731580
}
@@ -2053,28 +2060,7 @@ BackendStartup(Port *port)
20532060
pid=fork();
20542061

20552062
if (pid==0)/* child */
2056-
{
2057-
intstatus;
2058-
2059-
#ifdefLINUX_PROFILE
2060-
setitimer(ITIMER_PROF,&prof_itimer,NULL);
2061-
#endif
2062-
2063-
#ifdef__BEOS__
2064-
/* Specific beos backend startup actions */
2065-
beos_backend_startup();
2066-
#endif
2067-
free(bn);
2068-
2069-
status=DoBackend(port);
2070-
if (status!=0)
2071-
{
2072-
elog(LOG,"connection startup failed");
2073-
proc_exit(status);
2074-
}
2075-
else
2076-
proc_exit(0);
2077-
}
2063+
BackendFork(port,bn);/* never returns */
20782064

20792065
/* in parent, error */
20802066
if (pid<0)
@@ -2108,6 +2094,31 @@ BackendStartup(Port *port)
21082094
}
21092095

21102096

2097+
staticvoid
2098+
BackendFork(Port*port,Backend*bn)
2099+
{
2100+
intstatus;
2101+
2102+
#ifdefLINUX_PROFILE
2103+
setitimer(ITIMER_PROF,&prof_itimer,NULL);
2104+
#endif
2105+
2106+
#ifdef__BEOS__
2107+
/* Specific beos backend startup actions */
2108+
beos_backend_startup();
2109+
#endif
2110+
free(bn);
2111+
2112+
status=BackendFinalize(port);
2113+
if (status!=0)
2114+
{
2115+
elog(LOG,"connection startup failed");
2116+
proc_exit(status);
2117+
}
2118+
else
2119+
proc_exit(0);
2120+
}
2121+
21112122
/*
21122123
* Try to report backend fork() failure to client before we close the
21132124
* connection.Since we do not care to risk blocking the postmaster on
@@ -2173,7 +2184,7 @@ split_opts(char **argv, int *argcp, char *s)
21732184
}
21742185

21752186
/*
2176-
*DoBackend -- perform authentication, and if successful, set up the
2187+
*BackendFinalize -- perform authentication, and if successful, set up the
21772188
*backend's argument list and invoke backend main().
21782189
*
21792190
* This used to perform an execv() but we no longer exec the backend;
@@ -2184,7 +2195,7 @@ split_opts(char **argv, int *argcp, char *s)
21842195
*If PostgresMain() fails, return status.
21852196
*/
21862197
staticint
2187-
DoBackend(Port*port)
2198+
BackendFinalize(Port*port)
21882199
{
21892200
char*remote_host;
21902201
char**av;
@@ -2221,6 +2232,10 @@ DoBackend(Port *port)
22212232
/* Reset MyProcPid to new backend's pid */
22222233
MyProcPid=getpid();
22232234

2235+
#ifdefEXEC_BACKEND
2236+
read_nondefault_variables();
2237+
#endif
2238+
22242239
/*
22252240
* Initialize libpq and enable reporting of elog errors to the client.
22262241
* Must do this now because authentication uses libpq to send
@@ -2248,7 +2263,7 @@ DoBackend(Port *port)
22482263
unsigned shortremote_port;
22492264
char*host_addr;
22502265
#ifdefHAVE_IPV6
2251-
charip_hostinfo[INET6_ADDRSTRLEN];
2266+
charip_hostinfo[INET6_ADDRSTRLEN];
22522267
#else
22532268
charip_hostinfo[INET_ADDRSTRLEN];
22542269
#endif
@@ -2294,7 +2309,7 @@ DoBackend(Port *port)
22942309
}
22952310
else
22962311
{
2297-
/* not AF_INET */
2312+
/* not AF_INET */
22982313
remote_host="[local]";
22992314

23002315
if (Log_connections)
@@ -2318,7 +2333,7 @@ DoBackend(Port *port)
23182333
* indefinitely. PreAuthDelay doesn't count against the time limit.
23192334
*/
23202335
if (!enable_sig_alarm(AuthenticationTimeout*1000, false))
2321-
elog(FATAL,"DoBackend: Unable to set timer for auth timeout");
2336+
elog(FATAL,"BackendFinalize: Unable to set timer for auth timeout");
23222337

23232338
/*
23242339
* Receive the startup packet (which might turn out to be a cancel
@@ -2347,7 +2362,7 @@ DoBackend(Port *port)
23472362
* SIGTERM/SIGQUIT again until backend startup is complete.
23482363
*/
23492364
if (!disable_sig_alarm(false))
2350-
elog(FATAL,"DoBackend: Unable to disable timer for auth timeout");
2365+
elog(FATAL,"BackendFinalize: Unable to disable timer for auth timeout");
23512366
PG_SETMASK(&BlockSig);
23522367

23532368
if (Log_connections)

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