Reduce open() calls. Replace fopen() calls with calls to fd.c functions.
This commit is contained in:
Bruce Momjian
parent
eaae21fb4d
commit
022903f22e
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@ -6,7 +6,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.24 1997/06/12 15:39:44 vadim Exp $
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* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.25 1997/08/18 02:14:34 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -34,6 +34,7 @@
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#include <catalog/catname.h>
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#include <catalog/pg_user.h>
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#include <commands/copy.h>
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#include <storage/fd.h>
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#define ISOCTAL(c) (((c) >= '0') && ((c) <= '7'))
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#define VALUE(c) ((c) - '0')
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@ -127,7 +128,7 @@ DoCopy(char *relname, bool binary, bool oids, bool from, bool pipe,
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fp = Pfin;
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} else fp = stdin;
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} else {
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fp = fopen(filename, "r");
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fp = AllocateFile(filename, "r");
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if (fp == NULL)
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elog(WARN, "COPY command, running in backend with "
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"effective uid %d, could not open file '%s' for "
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@ -145,7 +146,7 @@ DoCopy(char *relname, bool binary, bool oids, bool from, bool pipe,
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} else {
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mode_t oumask; /* Pre-existing umask value */
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oumask = umask((mode_t) 0);
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fp = fopen(filename, "w");
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fp = AllocateFile(filename, "w");
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umask(oumask);
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if (fp == NULL)
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elog(WARN, "COPY command, running in backend with "
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@ -156,7 +157,8 @@ DoCopy(char *relname, bool binary, bool oids, bool from, bool pipe,
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}
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CopyTo(rel, binary, oids, fp, delim);
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}
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if (!pipe) fclose(fp);
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if (!pipe)
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FreeFile(fp);
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else if (!from && !binary) {
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fputs("\\.\n", fp);
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if (IsUnderPostmaster) fflush(Pfout);
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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/libpq/hba.c,v 1.17 1997/08/12 22:52:52 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.18 1997/08/18 02:14:37 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -28,7 +28,7 @@
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#include <libpq/pqcomm.h>
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#include <libpq/hba.h>
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#include <port/inet_aton.h> /* For inet_aton() */
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#include <storage/fd.h>
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/* Some standard C libraries, including GNU, have an isblank() function.
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Others, including Solaris, do not. So we have our own.
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@ -334,8 +334,8 @@ find_hba_entry(const char DataDir[], const struct in_addr ip_addr,
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strlen(CONF_FILE)+2)*sizeof(char));
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sprintf(conf_file, "%s/%s", DataDir, CONF_FILE);
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file = fopen(conf_file, "r");
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if (file == 0) {
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file = AllocateFile(conf_file, "r");
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if (file == NULL) {
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/* The open of the config file failed. */
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*host_ok_p = false;
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@ -350,7 +350,7 @@ find_hba_entry(const char DataDir[], const struct in_addr ip_addr,
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} else {
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process_open_config_file(file, ip_addr, database, host_ok_p, userauth_p,
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usermap_name, find_password_entries);
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fclose(file);
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FreeFile(file);
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}
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free(conf_file);
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}
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@ -636,8 +636,8 @@ verify_against_usermap(const char DataDir[],
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strlen(MAP_FILE)+2)*sizeof(char));
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sprintf(map_file, "%s/%s", DataDir, MAP_FILE);
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file = fopen(map_file, "r");
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if (file == 0) {
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file = AllocateFile(map_file, "r");
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if (file == NULL) {
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/* The open of the map file failed. */
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*checks_out_p = false;
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@ -654,7 +654,7 @@ verify_against_usermap(const char DataDir[],
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verify_against_open_usermap(file,
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pguser, ident_username, usermap_name,
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checks_out_p);
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fclose(file);
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FreeFile(file);
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}
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free(map_file);
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@ -2,6 +2,7 @@
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#include <libpq/password.h>
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#include <libpq/hba.h>
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#include <libpq/libpq.h>
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#include <storage/fd.h>
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#include <string.h>
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#include <unistd.h>
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#ifdef HAVE_CRYPT_H
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@ -56,7 +57,7 @@ verify_password(char *user, char *password, Port *port,
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strcat(pw_file_fullname, "/");
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strcat(pw_file_fullname, pw_file_name);
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pw_file = fopen(pw_file_fullname, "r");
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pw_file = AllocateFile(pw_file_fullname, "r");
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if(!pw_file) {
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sprintf(PQerrormsg,
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"verify_password: couldn't open password file '%s'\n",
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@ -84,7 +85,7 @@ verify_password(char *user, char *password, Port *port,
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if(strcmp(user, test_user) == 0) {
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/* we're outta here one way or the other. */
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fclose(pw_file);
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FreeFile(pw_file);
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if(strcmp(crypt(password, salt), test_pw) == 0) {
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/* it matched. */
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@ -5,7 +5,7 @@
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: geqo_params.c,v 1.4 1997/08/12 22:53:09 momjian Exp $
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* $Id: geqo_params.c,v 1.5 1997/08/18 02:14:41 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -43,6 +43,8 @@
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#include "optimizer/geqo_gene.h"
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#include "optimizer/geqo.h"
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#include "storage/fd.h"
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#define POOL_TAG "Pool_Size"
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#define TRIAL_TAG "Generations"
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#define RAND_TAG "Random_Seed"
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@ -89,7 +91,7 @@ geqo_params(int string_length)
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sprintf(conf_file, "%s/%s", DataDir, GEQO_FILE);
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/* open the config file */
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file = fopen(conf_file, "r");
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file = AllocateFile(conf_file, "r");
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if (file)
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{
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/*
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@ -187,7 +189,7 @@ geqo_params(int string_length)
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}
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}
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fclose(file);
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FreeFile(file);
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pfree(conf_file);
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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/parser/Attic/dbcommands.c,v 1.3 1997/01/10 20:18:20 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/parser/Attic/dbcommands.c,v 1.4 1997/08/18 02:14:44 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -31,6 +31,7 @@
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#include "tcop/tcopprot.h"
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#include "storage/bufmgr.h"
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#include "storage/lmgr.h"
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#include "storage/fd.h"
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/* non-export function prototypes */
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@ -249,9 +250,9 @@ stop_vacuum(char *dbname)
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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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if ((fp = fopen(filename, "r")) != (FILE *) NULL) {
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if ((fp = AllocateFile(filename, "r")) != NULL) {
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fscanf(fp, "%d", &pid);
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fclose(fp);
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FreeFile(fp);
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if (kill(pid, SIGKILLDAEMON1) < 0) {
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elog(WARN, "can't kill vacuum daemon (pid %d) on %s",
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pid, dbname);
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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/buffer/bufmgr.c,v 1.16 1997/08/12 22:53:46 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.17 1997/08/18 02:14:49 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -1663,7 +1663,7 @@ _bm_die(Oid dbId, Oid relId, int blkNo, int bufNo,
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tb = &TraceBuf[cur];
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if ((fp = fopen("/tmp/death_notice", "w")) == (FILE *) NULL)
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if ((fp = AllocateFile("/tmp/death_notice", "w")) == NULL)
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elog(FATAL, "buffer alloc trace error and can't open log file");
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fprintf(fp, "buffer alloc trace detected the following error:\n\n");
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@ -1728,7 +1728,7 @@ _bm_die(Oid dbId, Oid relId, int blkNo, int bufNo,
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break;
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}
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fclose(fp);
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FreeFile(fp);
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kill(getpid(), SIGILL);
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}
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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 1.20 1997/08/12 22:53:51 momjian Exp $
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* $Id: fd.c,v 1.21 1997/08/18 02:14:50 momjian Exp $
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*
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* NOTES:
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*
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@ -124,12 +124,6 @@ static Size SizeVfdCache = 0;
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*/
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static int nfile = 0;
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/*
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* we use the name of the null device in various places, mostly so
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* that we can open it and find out if we really have any descriptors
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* available or not.
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*/
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static char *Nulldev = "/dev/null";
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static char Sep_char = '/';
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/*
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@ -312,7 +306,6 @@ LruInsert (File file)
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vfdP = &VfdCache[file];
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if (FileIsNotOpen(file)) {
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int tmpfd;
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if ( nfile >= pg_nofile() )
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AssertLruRoom();
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@ -324,16 +317,13 @@ LruInsert (File file)
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* should be able to open all the time. If this fails, we
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* assume this is because there's no free file descriptors.
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*/
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tryAgain:
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tmpfd = open(Nulldev, O_CREAT|O_RDWR, 0666);
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if (tmpfd < 0) {
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tryAgain:
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vfdP->fd = open(vfdP->fileName,vfdP->fileFlags,vfdP->fileMode);
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if (vfdP->fd < 0 && (errno == EMFILE || errno == ENFILE)) {
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errno = 0;
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AssertLruRoom();
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goto tryAgain;
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} else {
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close(tmpfd);
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}
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vfdP->fd = open(vfdP->fileName,vfdP->fileFlags,vfdP->fileMode);
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if (vfdP->fd < 0) {
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DO_DB(elog(DEBUG, "RE_OPEN FAILED: %d",
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@ -530,7 +520,6 @@ fileNameOpenFile(FileName fileName,
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{
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File file;
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Vfd *vfdP;
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int tmpfd;
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DO_DB(elog(DEBUG, "fileNameOpenFile: %s %x %o",
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fileName, fileFlags, fileMode));
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@ -542,18 +531,15 @@ fileNameOpenFile(FileName fileName,
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AssertLruRoom();
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tryAgain:
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tmpfd = open(Nulldev, O_CREAT|O_RDWR, 0666);
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if (tmpfd < 0) {
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vfdP->fd = open(fileName,fileFlags,fileMode);
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if (vfdP->fd < 0 && (errno == EMFILE || errno == ENFILE)) {
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DO_DB(elog(DEBUG, "fileNameOpenFile: not enough descs, retry, er= %d",
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errno));
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errno = 0;
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AssertLruRoom();
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goto tryAgain;
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} else {
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close(tmpfd);
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}
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vfdP->fd = open(fileName,fileFlags,fileMode);
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vfdP->fdstate = 0x0;
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if (vfdP->fd < 0) {
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@ -816,30 +802,31 @@ FileNameUnlink(char *filename)
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*/
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static int allocatedFiles = 0;
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void
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AllocateFile()
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FILE *
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AllocateFile(char *name, char *mode)
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{
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int fd;
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FILE *file;
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int fdleft;
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DO_DB(elog(DEBUG, "AllocateFile: Allocated %d.", allocatedFiles));
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while ((fd = open(Nulldev,O_WRONLY,0)) < 0) {
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if (errno == EMFILE) {
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errno = 0;
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AssertLruRoom();
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} else {
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elog(WARN,"Open: %s in %s line %d, %s", Nulldev,
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__FILE__, __LINE__, strerror(errno));
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}
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TryAgain:
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if ((file = fopen(name, mode)) == NULL) {
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if (errno == EMFILE || errno == ENFILE) {
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DO_DB(elog(DEBUG, "AllocateFile: not enough descs, retry, er= %d",
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errno));
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errno = 0;
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AssertLruRoom();
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goto TryAgain;
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}
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}
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close(fd);
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++allocatedFiles;
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fdleft = pg_nofile() - allocatedFiles;
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if (fdleft < 6) {
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elog(NOTICE,"warning: few usable file descriptors left (%d)", fdleft);
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else {
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++allocatedFiles;
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fdleft = pg_nofile() - allocatedFiles;
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if (fdleft < 6)
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elog(NOTICE,"warning: few usable file descriptors left (%d)", fdleft);
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}
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return file;
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}
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/*
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@ -847,11 +834,12 @@ AllocateFile()
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* AllocateFile()?
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*/
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void
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FreeFile()
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FreeFile(FILE *file)
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{
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DO_DB(elog(DEBUG, "FreeFile: Allocated %d.", allocatedFiles));
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Assert(allocatedFiles > 0);
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fclose(file);
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--allocatedFiles;
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}
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@ -865,15 +853,3 @@ closeAllVfds()
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LruDelete(i);
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}
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}
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void
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closeOneVfd()
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{
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int tmpfd;
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tmpfd = open(Nulldev, O_CREAT | O_RDWR, 0666);
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if (tmpfd < 0)
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AssertLruRoom();
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else
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close(tmpfd);
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}
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|
|
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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 1.18 1997/07/24 20:15:18 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.19 1997/08/18 02:14:52 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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|
@ -47,6 +47,7 @@
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#include "tcop/variable.h"
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#include "tcop/utility.h"
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#include "fmgr.h" /* For load_file() */
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#include "storage/fd.h"
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|
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#ifndef NO_SECURITY
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#include "miscadmin.h"
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|
|
@ -218,9 +219,6 @@ ProcessUtility(Node *parsetree,
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commandTag = "COPY";
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CHECK_IF_ABORTED();
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/* Free up file descriptors - going to do a read... */
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closeOneVfd();
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DoCopy(stmt->relname,
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stmt->binary,
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stmt->oids,
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|
|
@ -594,9 +592,9 @@ ProcessUtility(Node *parsetree,
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|
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filename = stmt->filename;
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closeAllVfds();
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if ((fp = fopen(filename, "r")) == NULL)
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if ((fp = AllocateFile(filename, "r")) == NULL)
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elog(WARN, "LOAD: could not open file %s", filename);
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fclose(fp);
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FreeFile(fp);
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load_file(filename);
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}
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break;
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|
|
|
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|
|
@ -7,7 +7,7 @@
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*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.13 1997/08/12 22:54:24 momjian Exp $
|
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.14 1997/08/18 02:14:54 momjian Exp $
|
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*
|
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*-------------------------------------------------------------------------
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*/
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|
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@ -23,7 +23,7 @@
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|
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#include "utils/syscache.h"
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#include "utils/memutils.h"
|
||||
#include "storage/fd.h" /* for SEEK_ */
|
||||
#include "storage/fd.h"
|
||||
#include "fmgr.h"
|
||||
#include "utils/array.h"
|
||||
|
||||
|
|
@ -463,11 +463,12 @@ _ReadLOArray(char *str,
|
|||
|
||||
if ( accessfile ) {
|
||||
FILE *afd;
|
||||
if ((afd = fopen (accessfile, "r")) == NULL)
|
||||
if ((afd = AllocateFile(accessfile, "r")) == NULL)
|
||||
elog(WARN, "unable to open access pattern file");
|
||||
*chunkFlag = true;
|
||||
retStr = _ChunkArray(*fd, afd, ndim, dim, baseSize, nbytes,
|
||||
chunkfile);
|
||||
FreeFile(afd);
|
||||
}
|
||||
return(retStr);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@
|
|||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/sort/Attic/psort.c,v 1.15 1997/08/14 16:11:28 momjian Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/sort/Attic/psort.c,v 1.16 1997/08/18 02:14:56 momjian Exp $
|
||||
*
|
||||
* NOTES
|
||||
* Sorts the first relation into the second relation.
|
||||
|
|
@ -763,16 +763,10 @@ gettape()
|
|||
memmove(tp->tl_name, uniqueName, strlen(uniqueName));
|
||||
|
||||
|
||||
AllocateFile();
|
||||
file = fopen(tp->tl_name, "w+");
|
||||
if (file == NULL) {
|
||||
elog(NOTICE, "psort: gettape: fopen returned error code %i", errno);
|
||||
/* XXX this should not happen */
|
||||
FreeFile();
|
||||
FREE(tp->tl_name);
|
||||
FREE(tp);
|
||||
return(NULL);
|
||||
}
|
||||
file = AllocateFile(tp->tl_name, "w+");
|
||||
if (file == NULL)
|
||||
elog(WARN,"Open: %s in %s line %d, %s", tp->tl_name,
|
||||
__FILE__, __LINE__, strerror(errno));
|
||||
|
||||
tp->tl_fd = fileno(file);
|
||||
tp->tl_next = Tapes;
|
||||
|
|
@ -823,8 +817,7 @@ destroytape(FILE *file)
|
|||
|
||||
if ((fd = fileno(file)) == tp->tl_fd) {
|
||||
Tapes = tp->tl_next;
|
||||
fclose(file);
|
||||
FreeFile();
|
||||
FreeFile(file);
|
||||
unlink(tp->tl_name);
|
||||
FREE(tp->tl_name);
|
||||
FREE(tp);
|
||||
|
|
@ -833,8 +826,7 @@ destroytape(FILE *file)
|
|||
if (tp->tl_next == NULL)
|
||||
elog(FATAL, "destroytape: tape not found");
|
||||
if (tp->tl_next->tl_fd == fd) {
|
||||
fclose(file);
|
||||
FreeFile();
|
||||
FreeFile(file);
|
||||
tq = tp->tl_next;
|
||||
tp->tl_next = tq->tl_next;
|
||||
unlink(tq->tl_name);
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@
|
|||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: fd.h,v 1.6 1997/02/14 04:18:42 momjian Exp $
|
||||
* $Id: fd.h,v 1.7 1997/08/18 02:15:04 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
|
|
@ -34,11 +34,7 @@
|
|||
#ifndef FD_H
|
||||
#define FD_H
|
||||
|
||||
/*
|
||||
* FileOpen uses the standard UNIX open(2) flags.
|
||||
*/
|
||||
#ifndef O_RDONLY
|
||||
#endif /* O_RDONLY */
|
||||
#include <stdio.h>
|
||||
|
||||
/*
|
||||
* FileSeek uses the standard UNIX lseek(2) flags.
|
||||
|
|
@ -76,10 +72,9 @@ extern long FileTell(File file);
|
|||
extern int FileTruncate(File file, int offset);
|
||||
extern int FileSync(File file);
|
||||
extern int FileNameUnlink(char *filename);
|
||||
extern void AllocateFile(void);
|
||||
extern void FreeFile(void);
|
||||
extern FILE *AllocateFile(char *name, char *mode);
|
||||
extern void FreeFile(FILE *);
|
||||
extern void closeAllVfds(void);
|
||||
extern void closeOneVfd(void);
|
||||
extern int pg_fsync(int fd);
|
||||
|
||||
#endif /* FD_H */
|
||||
|
|
|
|||
Loading…
Reference in New Issue