Support alternate database locations.
This commit is contained in:
parent
d98f2f9985
commit
7d1f2f8a27
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@ -7,13 +7,14 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/parser/Attic/dbcommands.c,v 1.9 1997/09/08 21:46:07 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/parser/Attic/dbcommands.c,v 1.10 1997/11/07 06:37:55 thomas Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include <stdio.h>
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#include <string.h>
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#include <signal.h>
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#include <sys/stat.h>
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#include "postgres.h"
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#include "miscadmin.h" /* for DataDir */
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@ -36,41 +37,58 @@
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/* non-export function prototypes */
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static void
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check_permissions(char *command, char *dbname,
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check_permissions(char *command, char *dbpath, char *dbname,
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Oid *dbIdP, Oid *userIdP);
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static HeapTuple get_pg_dbtup(char *command, char *dbname, Relation dbrel);
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static void stop_vacuum(char *dbname);
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static void stop_vacuum(char *dbpath, char *dbname);
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void
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createdb(char *dbname)
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createdb(char *dbname, char *dbpath)
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{
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Oid db_id,
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user_id;
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char buf[512];
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char *lp,
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loc[512];
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/*
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* If this call returns, the database does not exist and we're allowed
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* to create databases.
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*/
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check_permissions("createdb", dbname, &db_id, &user_id);
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check_permissions("createdb", dbpath, dbname, &db_id, &user_id);
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/* close virtual file descriptors so we can do system() calls */
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closeAllVfds();
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sprintf(buf, "mkdir %s%cbase%c%s", DataDir, SEP_CHAR, SEP_CHAR, dbname);
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system(buf);
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sprintf(buf, "%s %s%cbase%ctemplate1%c* %s%cbase%c%s",
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COPY_CMD, DataDir, SEP_CHAR, SEP_CHAR, SEP_CHAR, DataDir,
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SEP_CHAR, SEP_CHAR, dbname);
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/* Now create directory for this new database */
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if ((dbpath != NULL) && (strcmp(dbpath,dbname) != 0))
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{
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if (*(dbpath+strlen(dbpath)-1) == SEP_CHAR)
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*(dbpath+strlen(dbpath)-1) = '\0';
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sprintf(loc, "%s%c%s", dbpath, SEP_CHAR, dbname);
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}
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else
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{
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strcpy(loc, dbname);
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}
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lp = ExpandDatabasePath(loc);
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if (mkdir(lp,S_IRWXU) != 0)
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elog(WARN,"Unable to create database directory %s",lp);
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sprintf(buf, "%s %s%cbase%ctemplate1%c* %s",
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COPY_CMD, DataDir, SEP_CHAR, SEP_CHAR, SEP_CHAR, lp);
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system(buf);
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/* sprintf(buf, "insert into pg_database (datname, datdba, datpath) \
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#if FALSE
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sprintf(buf, "insert into pg_database (datname, datdba, datpath) \
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values (\'%s\'::char16, \'%d\'::oid, \'%s\'::text);",
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dbname, user_id, dbname);
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*/
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sprintf(buf, "insert into pg_database (datname, datdba, datpath) \
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values (\'%s\', \'%d\', \'%s\');",
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dbname, user_id, dbname);
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#endif
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sprintf(buf, "insert into pg_database (datname, datdba, datpath)"
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" values (\'%s\', \'%d\', \'%s\');", dbname, user_id, loc);
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pg_eval(buf, (char **) NULL, (Oid *) NULL, 0);
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}
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@ -80,13 +98,20 @@ destroydb(char *dbname)
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{
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Oid user_id,
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db_id;
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char *path;
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char dbpath[MAXPGPATH+1];
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char buf[512];
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char loc[512];
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text *dbtext;
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Relation dbrel;
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HeapTuple dbtup;
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/*
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* If this call returns, the database exists and we're allowed to
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* remove it.
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*/
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check_permissions("destroydb", dbname, &db_id, &user_id);
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check_permissions("destroydb", dbpath, dbname, &db_id, &user_id);
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if (!OidIsValid(db_id))
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{
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@ -94,7 +119,36 @@ destroydb(char *dbname)
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}
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/* stop the vacuum daemon */
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stop_vacuum(dbname);
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stop_vacuum(dbpath, dbname);
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#if FALSE
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dbrel = heap_openr(DatabaseRelationName);
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if (!RelationIsValid(dbrel))
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elog(FATAL, "%s: cannot open relation \"%-.*s\"",
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"destroydb", DatabaseRelationName);
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dbtup = get_pg_dbtup("destroydb", dbname, dbrel);
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if (!HeapTupleIsValid(dbtup))
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elog(NOTICE,"destroydb: pg_database entry not found %s",dbname);
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dbtext = (text *) heap_getattr(dbtup, InvalidBuffer,
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Anum_pg_database_datpath,
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RelationGetTupleDescriptor(dbrel),
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(char *) NULL);
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memcpy(loc, VARDATA(dbtext), (VARSIZE(dbtext)-VARHDRSZ));
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*(loc+(VARSIZE(dbtext)-VARHDRSZ)) = '\0';
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#if FALSE
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if (*loc != SEP_CHAR)
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{
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sprintf(buf, "%s/base/%s", DataDir, loc);
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strcpy(loc, buf);
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}
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#endif
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heap_close(dbrel);
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#endif
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/*
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* remove the pg_database tuple FIRST, this may fail due to
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* remove the data directory. If the DELETE above failed, this will
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* not be reached
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*/
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sprintf(buf, "rm -r %s/base/%s", DataDir, dbname);
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path = ExpandDatabasePath(dbpath);
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sprintf(buf, "rm -r %s", path);
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system(buf);
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/* drop pages for this database that are in the shared buffer cache */
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@ -160,6 +216,7 @@ get_pg_dbtup(char *command, char *dbname, Relation dbrel)
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static void
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check_permissions(char *command,
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char *dbpath,
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char *dbname,
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Oid *dbIdP,
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Oid *userIdP)
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bool dbfound;
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bool use_super;
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char *userName;
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text *dbtext;
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char path[MAXPGPATH+1];
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userName = GetPgUserName();
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utup = SearchSysCacheTuple(USENAME, PointerGetDatum(userName),
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RelationGetTupleDescriptor(dbrel),
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(char *) NULL);
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*dbIdP = dbtup->t_oid;
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dbtext = (text *) heap_getattr(dbtup, InvalidBuffer,
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Anum_pg_database_datpath,
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RelationGetTupleDescriptor(dbrel),
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(char *) NULL);
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strncpy(path, VARDATA(dbtext), (VARSIZE(dbtext)-VARHDRSZ));
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*(path+VARSIZE(dbtext)-VARHDRSZ) = '\0';
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}
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else
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{
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elog(WARN, "%s: database %s is not owned by you.", command, dbname);
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}
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}
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if (dbfound && !strcmp(command, "destroydb"))
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strcpy(dbpath, path);
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} /* check_permissions() */
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/*
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* stop_vacuum() -- stop the vacuum daemon on the database, if one is
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* running.
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* stop_vacuum() -- stop the vacuum daemon on the database, if one is running.
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*/
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static void
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stop_vacuum(char *dbname)
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stop_vacuum(char *dbpath, char *dbname)
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{
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char filename[256];
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FILE *fp;
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int pid;
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sprintf(filename, "%s%cbase%c%s%c%s.vacuum", DataDir, SEP_CHAR, SEP_CHAR,
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if (strchr(dbpath, SEP_CHAR) != 0)
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{
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sprintf(filename, "%s%cbase%c%s%c%s.vacuum", DataDir, SEP_CHAR, SEP_CHAR,
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dbname, SEP_CHAR, dbname);
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}
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else
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{
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sprintf(filename, "%s%c%s.vacuum", dbpath, SEP_CHAR, dbname);
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}
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if ((fp = AllocateFile(filename, "r")) != NULL)
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{
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fscanf(fp, "%d", &pid);
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@ -6,7 +6,7 @@
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* Copyright (c) 1994, Regents of the University of California
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*
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* IDENTIFICATION
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* $Id: fd.c,v 1.26 1997/09/18 20:21:24 momjian Exp $
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* $Id: fd.c,v 1.27 1997/11/07 06:38:15 thomas Exp $
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*
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* NOTES:
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*
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*/
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static int nfile = 0;
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static char Sep_char = '/';
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/*
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* Private Routines
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*
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VfdCache[0].nextFree = file;
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}
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/* filepath()
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* Open specified file name.
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* Fill in absolute path fields if necessary.
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*
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* Modify to use GetDatabasePath() rather than hardcoded paths.
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* - thomas 1997-11-02
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*/
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static char *
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filepath(char *filename)
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{
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char *buf;
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char basename[16];
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int len;
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if (*filename != Sep_char)
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/* Not an absolute path name? Then fill in with database path... */
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if (*filename != SEP_CHAR)
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{
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/* Either /base/ or \base\ */
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sprintf(basename, "%cbase%c", Sep_char, Sep_char);
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len = strlen(DataDir) + strlen(basename) + strlen(GetDatabaseName())
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+ strlen(filename) + 2;
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len = strlen(GetDatabasePath()) + strlen(filename) + 2;
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buf = (char *) palloc(len);
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sprintf(buf, "%s%s%s%c%s",
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DataDir, basename, GetDatabaseName(), Sep_char, filename);
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sprintf(buf, "%s%c%s", GetDatabasePath(), SEP_CHAR, filename);
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}
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else
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{
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strcpy(buf, filename);
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}
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#ifdef FILEDEBUG
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printf("filepath: path is %s\n", buf);
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#endif
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return (buf);
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}
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.23 1997/10/25 01:10:04 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.24 1997/11/07 06:38:19 thomas Exp $
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*
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*-------------------------------------------------------------------------
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*/
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nchars = 0;
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/* construct the path to the file and open it */
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/* system table? then put in system area... */
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if (dbid == (Oid) 0)
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{
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path = (char *) palloc(strlen(DataDir) + sizeof(NameData) + 2 + nchars);
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else
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sprintf(path, "%s/%s.%d", DataDir, relstr, segno);
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}
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/* user table? then put in user database area... */
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else
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{
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#if FALSE
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path = (char *) palloc(strlen(DataDir) + strlen("/base/") + 2 * sizeof(NameData) + 2 + nchars);
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if (segno == 0)
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sprintf(path, "%s/base/%s/%s", DataDir,
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else
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sprintf(path, "%s/base/%s/%s.%d", DataDir, dbstr,
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relstr, segno);
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#endif
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path = (char *) palloc(strlen(GetDatabasePath()) + 2 * sizeof(NameData) + 2 + nchars);
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if (segno == 0)
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sprintf(path, "%s%c%s", GetDatabasePath(), SEP_CHAR, relstr);
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else
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sprintf(path, "%s%c%s.%d", GetDatabasePath(), SEP_CHAR, relstr, segno);
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}
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if ((fd = open(path, O_RDWR, 0600)) < 0)
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@ -9,7 +9,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.27 1997/10/28 14:57:24 vadim Exp $
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* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.28 1997/11/07 06:38:51 thomas Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -569,7 +569,7 @@ ProcessUtility(Node * parsetree,
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commandTag = "CREATEDB";
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CHECK_IF_ABORTED();
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createdb(stmt->dbname);
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createdb(stmt->dbname, stmt->dbpath);
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}
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break;
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.14 1997/09/08 02:31:58 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.15 1997/11/07 06:38:46 thomas Exp $
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*
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* NOTES
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* InitPostgres() is the function called from PostgresMain
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@ -50,7 +50,7 @@
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#include "access/transam.h" /* XXX dependency problem */
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#include "utils/tqual.h"
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#include "utils/syscache.h"
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#include "storage/bufpage.h" /* for page layout, for InitMyDatabaseId() */
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#include "storage/bufpage.h" /* for page layout, for InitMyDatabaseInfo() */
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#include "storage/sinval.h"
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#include "storage/sinvaladt.h"
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#include "storage/lmgr.h"
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#include "port-protos.h"
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#include "libpq/libpq-be.h"
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static void VerifySystemDatabase(void);
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static void VerifyMyDatabase(void);
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static void InitCommunication(void);
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static void InitMyDatabaseId(void);
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static void InitMyDatabaseInfo(char *name);
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static void InitStdio(void);
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static void InitUserid(void);
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extern char *ExpandDatabasePath(char *name);
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extern void GetRawDatabaseInfo(char *name, Oid *owner, Oid *db_id, char *path);
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static IPCKey PostgresIpcKey;
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@ -84,7 +88,7 @@ static IPCKey PostgresIpcKey;
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*/
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/* --------------------------------
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* InitMyDatabaseId() -- Find and record the OID of the database we are
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* InitMyDatabaseInfo() -- Find and record the OID of the database we are
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* to open.
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*
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* The database's oid forms half of the unique key for the system
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@ -98,133 +102,38 @@ static IPCKey PostgresIpcKey;
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* about the internal format of tuples on disk and the length of
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* the datname attribute. It knows the location of the pg_database
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* file.
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* Actually, the code looks as though it is using the pg_database
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* tuple definition to locate the database name, so the above statement
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* seems to be no longer correct. - thomas 1997-11-01
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*
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* This code is called from InitDatabase(), after we chdir() to the
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* database directory but before we open any relations.
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* This code is called from InitPostgres(), before we chdir() to the
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* local database directory and before we open any relations.
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* Used to be called after the chdir(), but we now want to confirm
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* the location of the target database using pg_database info.
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* - thomas 1997-11-01
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* --------------------------------
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*/
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static void
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InitMyDatabaseId()
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InitMyDatabaseInfo(char *name)
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{
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int dbfd;
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int fileflags;
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int nbytes;
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int max,
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i;
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HeapTuple tup;
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Page pg;
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PageHeader ph;
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char *dbfname;
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Form_pg_database tup_db;
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Oid owner;
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char *path,
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myPath[MAXPGPATH+1];
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/*
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* At bootstrap time, we don't need to check the oid of the database
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* in use, since we're not using shared memory. This is lucky, since
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* the database may not be in the tables yet.
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*/
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if (IsBootstrapProcessingMode())
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{
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LockDisable(true);
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return;
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}
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dbfname = (char *) palloc(strlen(DataDir) + strlen("pg_database") + 2);
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sprintf(dbfname, "%s%cpg_database", DataDir, SEP_CHAR);
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fileflags = O_RDONLY;
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if ((dbfd = open(dbfname, O_RDONLY, 0)) < 0)
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elog(FATAL, "Cannot open %s", dbfname);
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pfree(dbfname);
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/* ----------------
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* read and examine every page in pg_database
|
||||
*
|
||||
* Raw I/O! Read those tuples the hard way! Yow!
|
||||
*
|
||||
* Why don't we use the access methods or move this code
|
||||
* someplace else? This is really pg_database schema dependent
|
||||
* code. Perhaps it should go in lib/catalog/pg_database?
|
||||
* -cim 10/3/90
|
||||
*
|
||||
* mao replies 4 apr 91: yeah, maybe this should be moved to
|
||||
* lib/catalog. however, we CANNOT use the access methods since
|
||||
* those use the buffer cache, which uses the relation cache, which
|
||||
* requires that the dbid be set, which is what we're trying to do
|
||||
* here.
|
||||
* ----------------
|
||||
*/
|
||||
pg = (Page) palloc(BLCKSZ);
|
||||
ph = (PageHeader) pg;
|
||||
|
||||
while ((nbytes = read(dbfd, pg, BLCKSZ)) == BLCKSZ)
|
||||
{
|
||||
max = PageGetMaxOffsetNumber(pg);
|
||||
|
||||
/* look at each tuple on the page */
|
||||
for (i = 0; i <= max; i++)
|
||||
{
|
||||
int offset;
|
||||
|
||||
/* if it's a freed tuple, ignore it */
|
||||
if (!(ph->pd_linp[i].lp_flags & LP_USED))
|
||||
continue;
|
||||
|
||||
/* get a pointer to the tuple itself */
|
||||
offset = (int) ph->pd_linp[i].lp_off;
|
||||
tup = (HeapTuple) (((char *) pg) + offset);
|
||||
|
||||
/*
|
||||
* if the tuple has been deleted (the database was destroyed),
|
||||
* skip this tuple. XXX warning, will robinson: violation of
|
||||
* transaction semantics happens right here. we should check
|
||||
* to be sure that the xact that deleted this tuple actually
|
||||
* committed. only way to do this at init time is to paw over
|
||||
* the log relation by hand, too. let's be optimistic.
|
||||
*
|
||||
* XXX This is an evil type cast. tup->t_xmax is char[5] while
|
||||
* TransactionId is struct * { char data[5] }. It works but
|
||||
* if data is ever moved and no longer the first field this
|
||||
* will be broken!! -mer 11 Nov 1991.
|
||||
*/
|
||||
if (TransactionIdIsValid((TransactionId) tup->t_xmax))
|
||||
continue;
|
||||
|
||||
/*
|
||||
* Okay, see if this is the one we want. XXX 1 july 91: mao
|
||||
* and mer discover that tuples now squash t_bits. Why is
|
||||
* this?
|
||||
*
|
||||
* 24 july 92: mer realizes that the t_bits field is only used
|
||||
* in the event of null values. If no fields are null we
|
||||
* reduce the header size by doing the squash. t_hoff tells
|
||||
* you exactly how big the header actually is. use the PC
|
||||
* means of getting at sys cat attrs.
|
||||
*/
|
||||
tup_db = (Form_pg_database) GETSTRUCT(tup);
|
||||
|
||||
if (strncmp(GetDatabaseName(),
|
||||
&(tup_db->datname.data[0]),
|
||||
16) == 0)
|
||||
{
|
||||
MyDatabaseId = tup->t_oid;
|
||||
goto done;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
done:
|
||||
close(dbfd);
|
||||
pfree(pg);
|
||||
SetDatabaseName(name);
|
||||
GetRawDatabaseInfo(name, &owner, &MyDatabaseId, myPath);
|
||||
|
||||
if (!OidIsValid(MyDatabaseId))
|
||||
elog(FATAL,
|
||||
"Database %s does not exist in %s",
|
||||
GetDatabaseName(),
|
||||
DatabaseRelationName);
|
||||
}
|
||||
|
||||
path = ExpandDatabasePath(myPath);
|
||||
SetDatabasePath(path);
|
||||
|
||||
return;
|
||||
} /* InitMyDatabaseInfo() */
|
||||
|
||||
|
||||
/*
|
||||
|
@ -237,21 +146,21 @@ done:
|
|||
*
|
||||
* Arguments:
|
||||
* Path and name are invalid if it invalid as a string.
|
||||
* Path is "badly formated" if it is not a string containing a path
|
||||
* Path is "badly formatted" if it is not a string containing a path
|
||||
* to a writable directory.
|
||||
* Name is "badly formated" if it contains more than 16 characters or if
|
||||
* Name is "badly formatted" if it contains more than 16 characters or if
|
||||
* it is a bad file name (e.g., it contains a '/' or an 8-bit character).
|
||||
*
|
||||
* Exceptions:
|
||||
* BadState if called more than once.
|
||||
* BadArg if both path and name are "badly formated" or invalid.
|
||||
* BadArg if both path and name are "badly formatted" or invalid.
|
||||
* BadArg if path and name are both "inconsistent" and valid.
|
||||
*
|
||||
* This routine is inappropriate in bootstrap mode, since the directories
|
||||
* and version files need not exist yet if we're in bootstrap mode.
|
||||
*/
|
||||
static void
|
||||
DoChdirAndInitDatabaseNameAndPath(char *name)
|
||||
VerifySystemDatabase()
|
||||
{
|
||||
char *reason;
|
||||
|
||||
|
@ -261,85 +170,88 @@ DoChdirAndInitDatabaseNameAndPath(char *name)
|
|||
|
||||
if ((fd = open(DataDir, O_RDONLY, 0)) == -1)
|
||||
sprintf(errormsg, "Database system does not exist. "
|
||||
"PGDATA directory '%s' not found. Normally, you "
|
||||
"PGDATA directory '%s' not found.\n\tNormally, you "
|
||||
"create a database system by running initdb.",
|
||||
DataDir);
|
||||
else
|
||||
{
|
||||
char myPath[MAXPGPATH]; /* DatabasePath points here! */
|
||||
|
||||
close(fd);
|
||||
if (strlen(DataDir) + strlen(name) + 10 > sizeof(myPath))
|
||||
sprintf(errormsg, "Internal error in postinit.c: database "
|
||||
"pathname exceeds maximum allowable length.");
|
||||
else
|
||||
{
|
||||
sprintf(myPath, "%s/base/%s", DataDir, name);
|
||||
|
||||
if ((fd = open(myPath, O_RDONLY, 0)) == -1)
|
||||
sprintf(errormsg,
|
||||
"Database '%s' does not exist. "
|
||||
"(We know this because the directory '%s' "
|
||||
"does not exist). You can create a database "
|
||||
"with the SQL command CREATE DATABASE. To see "
|
||||
"what databases exist, look at the subdirectories "
|
||||
"of '%s/base/'.",
|
||||
name, myPath, DataDir);
|
||||
else
|
||||
{
|
||||
close(fd);
|
||||
ValidatePgVersion(DataDir, &reason);
|
||||
if (reason != NULL)
|
||||
sprintf(errormsg,
|
||||
"InitPostgres could not validate that the database "
|
||||
"system version is compatible with this level of "
|
||||
"Postgres. You may need to run initdb to create "
|
||||
"a new database system. %s",
|
||||
reason);
|
||||
else
|
||||
{
|
||||
ValidatePgVersion(myPath, &reason);
|
||||
if (reason != NULL)
|
||||
sprintf(errormsg,
|
||||
"InitPostgres could not validate that the "
|
||||
"database version is compatible with this level "
|
||||
"of Postgres, even though the database system "
|
||||
"as a whole appears to be at a compatible level. "
|
||||
"You may need to recreate the database with SQL "
|
||||
"commands DROP DATABASE and CREATE DATABASE. "
|
||||
"%s",
|
||||
reason);
|
||||
else
|
||||
{
|
||||
|
||||
/*
|
||||
* The directories and PG_VERSION files are in
|
||||
* order.
|
||||
*/
|
||||
int rc; /* return code from some function
|
||||
* we call */
|
||||
|
||||
SetDatabasePath(myPath);
|
||||
SetDatabaseName(name);
|
||||
rc = chdir(myPath);
|
||||
if (rc < 0)
|
||||
sprintf(errormsg,
|
||||
"InitPostgres unable to change "
|
||||
"current directory to '%s', errno = %s (%d).",
|
||||
myPath, strerror(errno), errno);
|
||||
else
|
||||
errormsg[0] = '\0';
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
ValidatePgVersion(DataDir, &reason);
|
||||
if (reason != NULL)
|
||||
sprintf(errormsg,
|
||||
"InitPostgres could not validate that the database"
|
||||
" system version is compatible with this level of"
|
||||
" Postgres.\n\tYou may need to run initdb to create"
|
||||
" a new database system.\n\t%s", reason);
|
||||
}
|
||||
if (errormsg[0] != '\0')
|
||||
elog(FATAL, errormsg);
|
||||
/* Above does not return */
|
||||
}
|
||||
} /* VerifySystemDatabase() */
|
||||
|
||||
|
||||
static void
|
||||
VerifyMyDatabase()
|
||||
{
|
||||
char *name;
|
||||
char *myPath;
|
||||
|
||||
/* Failure reason returned by some function. NULL if no failure */
|
||||
char *reason;
|
||||
int fd;
|
||||
char errormsg[1000];
|
||||
|
||||
name = GetDatabaseName();
|
||||
myPath = GetDatabasePath();
|
||||
|
||||
if ((fd = open(myPath, O_RDONLY, 0)) == -1)
|
||||
sprintf(errormsg,
|
||||
"Database '%s' does not exist."
|
||||
"\n\tWe know this because the directory '%s' does not exist."
|
||||
"\n\tYou can create a database with the SQL command"
|
||||
" CREATE DATABASE.\n\tTo see what databases exist,"
|
||||
" look at the subdirectories of '%s/base/'.",
|
||||
name, myPath, DataDir);
|
||||
else
|
||||
{
|
||||
close(fd);
|
||||
ValidatePgVersion(myPath, &reason);
|
||||
if (reason != NULL)
|
||||
sprintf(errormsg,
|
||||
"InitPostgres could not validate that the database"
|
||||
" version is compatible with this level of Postgres"
|
||||
"\n\teven though the database system as a whole"
|
||||
" appears to be at a compatible level."
|
||||
"\n\tYou may need to recreate the database with SQL"
|
||||
" commands DROP DATABASE and CREATE DATABASE."
|
||||
"\n\t%s", reason);
|
||||
else
|
||||
{
|
||||
/*
|
||||
* The directories and PG_VERSION files are in order.
|
||||
*/
|
||||
int rc; /* return code from some function we call */
|
||||
|
||||
#ifdef FILEDEBUG
|
||||
printf("Try changing directory for database %s to %s\n", name, myPath);
|
||||
#endif
|
||||
|
||||
rc = chdir(myPath);
|
||||
if (rc < 0)
|
||||
sprintf(errormsg,
|
||||
"InitPostgres unable to change "
|
||||
"current directory to '%s', errno = %s (%d).",
|
||||
myPath, strerror(errno), errno);
|
||||
else
|
||||
errormsg[0] = '\0';
|
||||
}
|
||||
}
|
||||
|
||||
if (errormsg[0] != '\0')
|
||||
elog(FATAL, errormsg);
|
||||
/* Above does not return */
|
||||
} /* VerifyMyDatabase() */
|
||||
|
||||
|
||||
/* --------------------------------
|
||||
* InitUserid
|
||||
|
@ -569,34 +481,43 @@ InitPostgres(char *name) /* database name */
|
|||
if (!TransactionFlushEnabled())
|
||||
on_exitpg(FlushBufferPool, (caddr_t) NULL);
|
||||
|
||||
if (bootstrap)
|
||||
{
|
||||
SetDatabasePath(".");
|
||||
SetDatabaseName(name);
|
||||
}
|
||||
else
|
||||
{
|
||||
DoChdirAndInitDatabaseNameAndPath(name);
|
||||
}
|
||||
|
||||
/*
|
||||
* ******************************** code after this point assumes we
|
||||
* are in the proper directory! ********************************
|
||||
*
|
||||
*/
|
||||
|
||||
/* ----------------
|
||||
* initialize the database id used for system caches and lock tables
|
||||
* ----------------
|
||||
*/
|
||||
InitMyDatabaseId();
|
||||
if (bootstrap)
|
||||
{
|
||||
SetDatabasePath(ExpandDatabasePath(name));
|
||||
SetDatabaseName(name);
|
||||
LockDisable(true);
|
||||
}
|
||||
else
|
||||
{
|
||||
VerifySystemDatabase();
|
||||
InitMyDatabaseInfo(name);
|
||||
VerifyMyDatabase();
|
||||
}
|
||||
|
||||
/*
|
||||
* ********************************
|
||||
* code after this point assumes we are in the proper directory!
|
||||
*
|
||||
* So, how do we implement alternate locations for databases?
|
||||
* There are two possible locations for tables and we need to look
|
||||
* in DataDir/pg_database to find the true location of an
|
||||
* individual database. We can brute-force it as done in
|
||||
* InitMyDatabaseInfo(), or we can be patient and wait until we
|
||||
* open pg_database gracefully. Will try that, but may not work...
|
||||
* - thomas 1997-11-01
|
||||
* ********************************
|
||||
*/
|
||||
|
||||
/* Does not touch files (?) - thomas 1997-11-01 */
|
||||
smgrinit();
|
||||
|
||||
/* ----------------
|
||||
* initialize the transaction system and the relation descriptor
|
||||
* cache. Note we have to make certain the lock manager is off while
|
||||
* we do this.
|
||||
* initialize the transaction system and the relation descriptor cache.
|
||||
* Note we have to make certain the lock manager is off while we do this.
|
||||
* ----------------
|
||||
*/
|
||||
AmiTransactionOverride(IsBootstrapProcessingMode());
|
||||
|
@ -610,8 +531,7 @@ InitPostgres(char *name) /* database name */
|
|||
* after initdb is done. -mer 15 June 1992
|
||||
*/
|
||||
RelationInitialize(); /* pre-allocated reldescs created here */
|
||||
InitializeTransactionSystem(); /* pg_log,etc init/crash recovery
|
||||
* here */
|
||||
InitializeTransactionSystem(); /* pg_log,etc init/crash recovery here */
|
||||
|
||||
LockDisable(false);
|
||||
|
||||
|
@ -641,6 +561,7 @@ InitPostgres(char *name) /* database name */
|
|||
|
||||
/* ----------------
|
||||
* initialize the access methods.
|
||||
* Does not touch files (?) - thomas 1997-11-01
|
||||
* ----------------
|
||||
*/
|
||||
initam();
|
||||
|
@ -650,6 +571,9 @@ InitPostgres(char *name) /* database name */
|
|||
* ----------------
|
||||
*/
|
||||
zerocaches();
|
||||
/* Does not touch files since all routines are builtins (?)
|
||||
* - thomas 1997-11-01
|
||||
*/
|
||||
InitCatalogCache();
|
||||
|
||||
/* ----------------
|
||||
|
|
|
@ -11,7 +11,7 @@
|
|||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: miscadmin.h,v 1.16 1997/09/18 14:42:22 vadim Exp $
|
||||
* $Id: miscadmin.h,v 1.17 1997/11/07 06:38:29 thomas Exp $
|
||||
*
|
||||
* NOTES
|
||||
* some of the information in this file will be moved to
|
||||
|
@ -107,6 +107,11 @@ extern Oid LastOidProcessed; /* for query rewrite */
|
|||
* POSTGRES directory path definitions. *
|
||||
*****************************************************************************/
|
||||
|
||||
/* in utils/misc/database.c */
|
||||
extern void GetRawDatabaseInfo(char *name, Oid *owner, Oid *db_id, char *path);
|
||||
extern int GetDatabaseInfo(char *name, Oid *owner, char *path);
|
||||
extern char *ExpandDatabasePath(char *path);
|
||||
|
||||
/* now in utils/init/miscinit.c */
|
||||
extern char *GetDatabasePath(void);
|
||||
extern char *GetDatabaseName(void);
|
||||
|
|
|
@ -6,7 +6,7 @@
|
|||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: parsenodes.h,v 1.29 1997/10/28 15:10:39 vadim Exp $
|
||||
* $Id: parsenodes.h,v 1.30 1997/11/07 06:38:38 thomas Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
|
@ -473,6 +473,7 @@ typedef struct CreatedbStmt
|
|||
{
|
||||
NodeTag type;
|
||||
char *dbname; /* database to create */
|
||||
char *dbpath; /* location of database */
|
||||
} CreatedbStmt;
|
||||
|
||||
/* ----------------------
|
||||
|
|
|
@ -6,7 +6,7 @@
|
|||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: dbcommands.h,v 1.4 1997/09/08 02:38:05 momjian Exp $
|
||||
* $Id: dbcommands.h,v 1.5 1997/11/07 06:38:09 thomas Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
|
@ -20,7 +20,7 @@
|
|||
#define SIGKILLDAEMON1 SIGINT
|
||||
#define SIGKILLDAEMON2 SIGTERM
|
||||
|
||||
extern void createdb(char *dbname);
|
||||
extern void createdb(char *dbname, char *dbpath);
|
||||
extern void destroydb(char *dbname);
|
||||
|
||||
#endif /* DBCOMMANDS_H */
|
||||
|
|
Loading…
Reference in New Issue