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ebb0a20149
that search loops only have to scan that far and not through all maxBackends entries. This eliminates a performance penalty for setting maxBackends much higher than the average number of active backends. Also, eliminate no-longer-used 'backend tag' concept. Remove setting of environment variables at backend start (except for CYR_RECODE), since none of them are being examined by the backend any longer.
125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/*-------------------------------------------------------------------------
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*
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* globals.c
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* global variable declarations
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*
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/init/globals.c,v 1.47 2000/11/12 20:51:52 tgl Exp $
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*
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* NOTES
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* Globals used all over the place should be declared here and not
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* in other modules.
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*
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*-------------------------------------------------------------------------
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*/
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#include <fcntl.h>
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#include <sys/file.h>
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#include <sys/types.h>
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#include <math.h>
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#include <unistd.h>
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#include "postgres.h"
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#include "catalog/catname.h"
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#include "catalog/indexing.h"
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#include "libpq/pqcomm.h"
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#include "miscadmin.h"
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#include "storage/backendid.h"
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ProtocolVersion FrontendProtocol = PG_PROTOCOL_LATEST;
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bool Noversion = false;
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bool Quiet = false;
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bool QueryCancel = false;
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int MyProcPid;
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struct Port *MyProcPort;
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long MyCancelKey;
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char *DataDir = NULL;
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/*
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* The PGDATA directory user says to use, or defaults to via environment
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* variable. NULL if no option given and no environment variable set
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*/
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Relation reldesc; /* current relation descriptor */
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char OutputFileName[MAXPGPATH] = "";
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BackendId MyBackendId;
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char *DatabaseName = NULL;
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char *DatabasePath = NULL;
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bool MyDatabaseIdIsInitialized = false;
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Oid MyDatabaseId = InvalidOid;
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bool TransactionInitWasProcessed = false;
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bool IsUnderPostmaster = false;
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int DebugLvl = 0;
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int DateStyle = USE_ISO_DATES;
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bool EuroDates = false;
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bool HasCTZSet = false;
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bool CDayLight = false;
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int CTimeZone = 0;
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char CTZName[MAXTZLEN + 1] = "";
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char DateFormat[20] = "%d-%m-%Y"; /* mjl: sizes! or better
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* malloc? XXX */
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char FloatFormat[20] = "%f";
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bool enableFsync = true;
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bool allowSystemTableMods = false;
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int SortMem = 512;
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int NBuffers = DEF_NBUFFERS;
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char *IndexedCatalogNames[] = {
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AttributeRelationName,
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ProcedureRelationName,
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TypeRelationName,
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RelationRelationName,
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0
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};
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/*
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* ps status buffer
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*/
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#ifndef linux
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char Ps_status_buffer[1024];
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#endif
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/* ----------------
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* we just do a linear search now so there's no requirement that the list
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* be ordered. The list is so small it shouldn't make much difference.
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* make sure the list is null-terminated
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* - jolly 8/19/95
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*
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* OLD COMMENT
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* WARNING WARNING WARNING WARNING WARNING WARNING
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*
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* keep SharedSystemRelationNames[] in SORTED order! A binary search
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* is done on it in catalog.c!
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*
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* XXX this is a serious hack which should be fixed -cim 1/26/90
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* ----------------
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*/
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char *SharedSystemRelationNames[] = {
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DatabaseRelationName,
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GroupRelationName,
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GroupNameIndex,
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GroupSysidIndex,
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LogRelationName,
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ShadowRelationName,
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VariableRelationName,
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0
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};
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