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Final rearrangement of main postgresql child process (ie.

Browse Source 
BackendFork/SSDataBase/pgstat) startup, to allow fork/exec calls to
closely mimic (the soon to be provided) Win32 CreateProcess equivalent
calls.

Claudio Natoli
This commit is contained in:
Bruce Momjian
2004-01-06 23:15:22 +00:00
parent 06288d4e22
commit 488f2785d0
6 changed files with 256 additions and 162 deletions
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24
src/backend/bootstrap/bootstrap.c
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@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/bootstrap/bootstrap.c,v 1.172 2003/12/25 03:52:50 momjian Exp $
* $PostgreSQL: pgsql/src/backend/bootstrap/bootstrap.c,v 1.173 2004/01/06 23:15:22 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -51,7 +51,7 @@
#ifdef EXEC_BACKEND
typedef struct Port Port;
extern void SSDataBaseInit(int);
extern void read_backend_variables(pid_t, Port*);
extern void read_backend_variables(unsigned long, Port*);
#endif
extern int Int_yyparse(void);
@ -231,6 +231,9 @@ BootstrapMain(int argc, char *argv[])
int flag;
int xlogop = BS_XLOG_NOP;
char *potential_DataDir = NULL;
#ifdef EXEC_BACKEND
unsigned long backendID = 0;
#endif
/*
* initialize globals
@ -291,10 +294,15 @@ BootstrapMain(int argc, char *argv[])
break;
case 'p':
#ifdef EXEC_BACKEND
IsUnderPostmaster = true;
{
char buf[MAXPGPATH];
IsUnderPostmaster = true;
sscanf(optarg,"%lu,%s",&backendID,buf);
dbname = strdup(buf);
}
#endif
dbname = strdup(optarg);
break;
break;
case 'B':
SetConfigOption("shared_buffers", optarg, PGC_POSTMASTER, PGC_S_ARGV);
break;
@ -363,7 +371,7 @@ BootstrapMain(int argc, char *argv[])
{
#ifdef EXEC_BACKEND
read_nondefault_variables();
read_backend_variables(getpid(),NULL);
read_backend_variables(backendID,NULL);
SSDataBaseInit(xlogop);
#endif
@ -431,11 +439,11 @@ BootstrapMain(int argc, char *argv[])
switch (xlogop)
{
case BS_XLOG_BGWRITER:
InitDummyProcess(DUMMY_PROC_BGWRITER);
InitDummyProcess(DUMMY_PROC_BGWRITER);
break;
default:
InitDummyProcess(DUMMY_PROC_DEFAULT);
InitDummyProcess(DUMMY_PROC_DEFAULT);
break;
}
}