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Reduce open() calls. Replace fopen() calls with calls to fd.c functions.

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REL6_4
Bruce Momjian 29 years ago
parent eaae21fb4d
commit 022903f22e
11 changed files with 74 additions and 106 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 10
      src/backend/commands/copy.c
  2. 16
      src/backend/libpq/hba.c
  3. 5
      src/backend/libpq/password.c
  4. 8
      src/backend/optimizer/geqo/geqo_params.c
  5. 7
      src/backend/parser/dbcommands.c
  6. 6
      src/backend/storage/buffer/bufmgr.c
  7. 76
      src/backend/storage/file/fd.c
  8. 10
      src/backend/tcop/utility.c
  9. 7
      src/backend/utils/adt/arrayfuncs.c
  10. 22
      src/backend/utils/sort/psort.c
  11. 13
      src/include/storage/fd.h

10
src/backend/commands/copy.c
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@ -6,7 +6,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.24 1997/06/12 15:39:44 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.25 1997/08/18 02:14:34 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -34,6 +34,7 @@
#include <catalog/catname.h>
#include <catalog/pg_user.h>
#include <commands/copy.h>
#include <storage/fd.h>
#define ISOCTAL(c) (((c) >= '0') && ((c) <= '7'))
#define VALUE(c) ((c) - '0')
@ -127,7 +128,7 @@ DoCopy(char *relname, bool binary, bool oids, bool from, bool pipe,
fp = Pfin;
} else fp = stdin;
} else {
fp = fopen(filename, "r");
fp = AllocateFile(filename, "r");
if (fp == NULL)
elog(WARN, "COPY command, running in backend with "
"effective uid %d, could not open file '%s' for "
@ -145,7 +146,7 @@ DoCopy(char *relname, bool binary, bool oids, bool from, bool pipe,
} else {
mode_t oumask; /* Pre-existing umask value */
oumask = umask((mode_t) 0);
fp = fopen(filename, "w");
fp = AllocateFile(filename, "w");
umask(oumask);
if (fp == NULL)
elog(WARN, "COPY command, running in backend with "
@ -156,7 +157,8 @@ DoCopy(char *relname, bool binary, bool oids, bool from, bool pipe,
}
CopyTo(rel, binary, oids, fp, delim);
}
if (!pipe) fclose(fp);
if (!pipe)
FreeFile(fp);
else if (!from && !binary) {
fputs("\\.\n", fp);
if (IsUnderPostmaster) fflush(Pfout);

16
src/backend/libpq/hba.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.17 1997/08/12 22:52:52 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.18 1997/08/18 02:14:37 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -28,7 +28,7 @@
#include <libpq/pqcomm.h>
#include <libpq/hba.h>
#include <port/inet_aton.h> /* For inet_aton() */
#include <storage/fd.h>
/* Some standard C libraries, including GNU, have an isblank() function.
Others, including Solaris, do not. So we have our own.
@ -334,8 +334,8 @@ find_hba_entry(const char DataDir[], const struct in_addr ip_addr,
strlen(CONF_FILE)+2)*sizeof(char));
sprintf(conf_file, "%s/%s", DataDir, CONF_FILE);
file = fopen(conf_file, "r");
if (file == 0) {
file = AllocateFile(conf_file, "r");
if (file == NULL) {
/* The open of the config file failed. */
*host_ok_p = false;
@ -350,7 +350,7 @@ find_hba_entry(const char DataDir[], const struct in_addr ip_addr,
} else {
process_open_config_file(file, ip_addr, database, host_ok_p, userauth_p,
usermap_name, find_password_entries);
fclose(file);
FreeFile(file);
}
free(conf_file);
}
@ -636,8 +636,8 @@ verify_against_usermap(const char DataDir[],
strlen(MAP_FILE)+2)*sizeof(char));
sprintf(map_file, "%s/%s", DataDir, MAP_FILE);
file = fopen(map_file, "r");
if (file == 0) {
file = AllocateFile(map_file, "r");
if (file == NULL) {
/* The open of the map file failed. */
*checks_out_p = false;
@ -654,7 +654,7 @@ verify_against_usermap(const char DataDir[],
verify_against_open_usermap(file,
pguser, ident_username, usermap_name,
checks_out_p);
fclose(file);
FreeFile(file);
}
free(map_file);

5
src/backend/libpq/password.c
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@ -2,6 +2,7 @@
#include <libpq/password.h>
#include <libpq/hba.h>
#include <libpq/libpq.h>
#include <storage/fd.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_CRYPT_H
@ -56,7 +57,7 @@ verify_password(char *user, char *password, Port *port,
strcat(pw_file_fullname, "/");
strcat(pw_file_fullname, pw_file_name);
pw_file = fopen(pw_file_fullname, "r");
pw_file = AllocateFile(pw_file_fullname, "r");
if(!pw_file) {
sprintf(PQerrormsg,
"verify_password: couldn't open password file '%s'\n",
@ -84,7 +85,7 @@ verify_password(char *user, char *password, Port *port,
if(strcmp(user, test_user) == 0) {
/* we're outta here one way or the other. */
fclose(pw_file);
FreeFile(pw_file);
if(strcmp(crypt(password, salt), test_pw) == 0) {
/* it matched. */

8
src/backend/optimizer/geqo/geqo_params.c
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@ -5,7 +5,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: geqo_params.c,v 1.4 1997/08/12 22:53:09 momjian Exp $
* $Id: geqo_params.c,v 1.5 1997/08/18 02:14:41 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -43,6 +43,8 @@
#include "optimizer/geqo_gene.h"
#include "optimizer/geqo.h"
#include "storage/fd.h"
#define POOL_TAG "Pool_Size"
#define TRIAL_TAG "Generations"
#define RAND_TAG "Random_Seed"
@ -89,7 +91,7 @@ geqo_params(int string_length)
sprintf(conf_file, "%s/%s", DataDir, GEQO_FILE);
/* open the config file */
file = fopen(conf_file, "r");
file = AllocateFile(conf_file, "r");
if (file)
{
/*
@ -187,7 +189,7 @@ geqo_params(int string_length)
}
}
fclose(file);
FreeFile(file);
pfree(conf_file);
}

7
src/backend/parser/dbcommands.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/dbcommands.c,v 1.3 1997/01/10 20:18:20 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/dbcommands.c,v 1.4 1997/08/18 02:14:44 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -31,6 +31,7 @@
#include "tcop/tcopprot.h"
#include "storage/bufmgr.h"
#include "storage/lmgr.h"
#include "storage/fd.h"
/* non-export function prototypes */
@ -249,9 +250,9 @@ stop_vacuum(char *dbname)
sprintf(filename, "%s%cbase%c%s%c%s.vacuum", DataDir, SEP_CHAR, SEP_CHAR,
dbname, SEP_CHAR, dbname);
if ((fp = fopen(filename, "r")) != (FILE *) NULL) {
if ((fp = AllocateFile(filename, "r")) != NULL) {
fscanf(fp, "%d", &pid);
fclose(fp);
FreeFile(fp);
if (kill(pid, SIGKILLDAEMON1) < 0) {
elog(WARN, "can't kill vacuum daemon (pid %d) on %s",
pid, dbname);

6
src/backend/storage/buffer/bufmgr.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.16 1997/08/12 22:53:46 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.17 1997/08/18 02:14:49 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -1663,7 +1663,7 @@ _bm_die(Oid dbId, Oid relId, int blkNo, int bufNo,
tb = &TraceBuf[cur];
if ((fp = fopen("/tmp/death_notice", "w")) == (FILE *) NULL)
if ((fp = AllocateFile("/tmp/death_notice", "w")) == NULL)
elog(FATAL, "buffer alloc trace error and can't open log file");
fprintf(fp, "buffer alloc trace detected the following error:\n\n");
@ -1728,7 +1728,7 @@ _bm_die(Oid dbId, Oid relId, int blkNo, int bufNo,
break;
}
fclose(fp);
FreeFile(fp);
kill(getpid(), SIGILL);
}

76
src/backend/storage/file/fd.c
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@ -6,7 +6,7 @@
* Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Id: fd.c,v 1.20 1997/08/12 22:53:51 momjian Exp $
* $Id: fd.c,v 1.21 1997/08/18 02:14:50 momjian Exp $
*
* NOTES:
*
@ -124,12 +124,6 @@ static Size SizeVfdCache = 0;
*/
static int nfile = 0;
/*
* we use the name of the null device in various places, mostly so
* that we can open it and find out if we really have any descriptors
* available or not.
*/
static char *Nulldev = "/dev/null";
static char Sep_char = '/';
/*
@ -312,7 +306,6 @@ LruInsert (File file)
vfdP = &VfdCache[file];
if (FileIsNotOpen(file)) {
int tmpfd;
if ( nfile >= pg_nofile() )
AssertLruRoom();
@ -324,16 +317,13 @@ LruInsert (File file)
* should be able to open all the time. If this fails, we
* assume this is because there's no free file descriptors.
*/
tryAgain:
tmpfd = open(Nulldev, O_CREAT|O_RDWR, 0666);
if (tmpfd < 0) {
tryAgain:
vfdP->fd = open(vfdP->fileName,vfdP->fileFlags,vfdP->fileMode);
if (vfdP->fd < 0 && (errno == EMFILE || errno == ENFILE)) {
errno = 0;
AssertLruRoom();
goto tryAgain;
} else {
close(tmpfd);
}
vfdP->fd = open(vfdP->fileName,vfdP->fileFlags,vfdP->fileMode);
if (vfdP->fd < 0) {
DO_DB(elog(DEBUG, "RE_OPEN FAILED: %d",
@ -530,7 +520,6 @@ fileNameOpenFile(FileName fileName,
{
File file;
Vfd *vfdP;
int tmpfd;
DO_DB(elog(DEBUG, "fileNameOpenFile: %s %x %o",
fileName, fileFlags, fileMode));
@ -542,18 +531,15 @@ fileNameOpenFile(FileName fileName,
AssertLruRoom();
tryAgain:
tmpfd = open(Nulldev, O_CREAT|O_RDWR, 0666);
if (tmpfd < 0) {
vfdP->fd = open(fileName,fileFlags,fileMode);
if (vfdP->fd < 0 && (errno == EMFILE || errno == ENFILE)) {
DO_DB(elog(DEBUG, "fileNameOpenFile: not enough descs, retry, er= %d",
errno));
errno = 0;
AssertLruRoom();
goto tryAgain;
} else {
close(tmpfd);
}
vfdP->fd = open(fileName,fileFlags,fileMode);
vfdP->fdstate = 0x0;
if (vfdP->fd < 0) {
@ -816,30 +802,31 @@ FileNameUnlink(char *filename)
*/
static int allocatedFiles = 0;
void
AllocateFile()
FILE *
AllocateFile(char *name, char *mode)
{
int fd;
FILE *file;
int fdleft;
DO_DB(elog(DEBUG, "AllocateFile: Allocated %d.", allocatedFiles));
while ((fd = open(Nulldev,O_WRONLY,0)) < 0) {
if (errno == EMFILE) {
errno = 0;
AssertLruRoom();
} else {
elog(WARN,"Open: %s in %s line %d, %s", Nulldev,
__FILE__, __LINE__, strerror(errno));
}
TryAgain:
if ((file = fopen(name, mode)) == NULL) {
if (errno == EMFILE || errno == ENFILE) {
DO_DB(elog(DEBUG, "AllocateFile: not enough descs, retry, er= %d",
errno));
errno = 0;
AssertLruRoom();
goto TryAgain;
}
}
close(fd);
++allocatedFiles;
fdleft = pg_nofile() - allocatedFiles;
if (fdleft < 6) {
elog(NOTICE,"warning: few usable file descriptors left (%d)", fdleft);
else {
++allocatedFiles;
fdleft = pg_nofile() - allocatedFiles;
if (fdleft < 6)
elog(NOTICE,"warning: few usable file descriptors left (%d)", fdleft);
}
return file;
}
/*
@ -847,11 +834,12 @@ AllocateFile()
* AllocateFile()?
*/
void
FreeFile()
FreeFile(FILE *file)
{
DO_DB(elog(DEBUG, "FreeFile: Allocated %d.", allocatedFiles));
Assert(allocatedFiles > 0);
fclose(file);
--allocatedFiles;
}
@ -865,15 +853,3 @@ closeAllVfds()
LruDelete(i);
}
}
void
closeOneVfd()
{
int tmpfd;
tmpfd = open(Nulldev, O_CREAT | O_RDWR, 0666);
if (tmpfd < 0)
AssertLruRoom();
else
close(tmpfd);
}

10
src/backend/tcop/utility.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.18 1997/07/24 20:15:18 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.19 1997/08/18 02:14:52 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -47,6 +47,7 @@
#include "tcop/variable.h"
#include "tcop/utility.h"
#include "fmgr.h" /* For load_file() */
#include "storage/fd.h"
#ifndef NO_SECURITY
#include "miscadmin.h"
@ -218,9 +219,6 @@ ProcessUtility(Node *parsetree,
commandTag = "COPY";
CHECK_IF_ABORTED();
/* Free up file descriptors - going to do a read... */
closeOneVfd();
DoCopy(stmt->relname,
stmt->binary,
stmt->oids,
@ -594,9 +592,9 @@ ProcessUtility(Node *parsetree,
filename = stmt->filename;
closeAllVfds();
if ((fp = fopen(filename, "r")) == NULL)
if ((fp = AllocateFile(filename, "r")) == NULL)
elog(WARN, "LOAD: could not open file %s", filename);
fclose(fp);
FreeFile(fp);
load_file(filename);
}
break;

7
src/backend/utils/adt/arrayfuncs.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.13 1997/08/12 22:54:24 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.14 1997/08/18 02:14:54 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -23,7 +23,7 @@
#include "utils/syscache.h"
#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);
}

22
src/backend/utils/sort/psort.c
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@ -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);

13
src/include/storage/fd.h
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@ -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 */

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