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Error message editing in backend/storage.

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This commit is contained in:
Tom Lane
2003-07-24 22:04:15 +00:00
parent 658fca8d3a
commit cfa191f3b8
25 changed files with 425 additions and 320 deletions
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79
src/backend/storage/file/fd.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/file/fd.c,v 1.98 2003/04/29 03:21:29 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/file/fd.c,v 1.99 2003/07/24 22:04:09 tgl Exp $
*
* NOTES:
*
@ -247,7 +247,7 @@ pg_fdatasync(int fd)
* This is exported for use by places that really want a plain kernel FD,
* but need to be proof against running out of FDs. Once an FD has been
* successfully returned, it is the caller's responsibility to ensure that
* it will not be leaked on elog()! Most users should *not* call this
* it will not be leaked on ereport()! Most users should *not* call this
* routine directly, but instead use the VFD abstraction level, which
* provides protection against descriptor leaks as well as management of
* files that need to be open for more than a short period of time.
@ -272,8 +272,9 @@ tryAgain:
{
int save_errno = errno;
DO_DB(elog(LOG, "BasicOpenFile: not enough descs, retry, er= %d",
errno));
ereport(LOG,
(errcode(ERRCODE_INSUFFICIENT_RESOURCES),
errmsg("out of file descriptors: %m; release and retry")));
errno = 0;
if (ReleaseLruFile())
goto tryAgain;
@ -306,7 +307,7 @@ pg_nofile(void)
#else
no_files = (long) max_files_per_process;
#endif
elog(LOG, "pg_nofile: sysconf(_SC_OPEN_MAX) failed; using %ld",
elog(LOG, "sysconf(_SC_OPEN_MAX) failed; using %ld",
no_files);
}
#else /* !HAVE_SYSCONF */
@ -328,9 +329,11 @@ pg_nofile(void)
* Make sure we have enough to get by after reserving some for LD.
*/
if ((no_files - RESERVE_FOR_LD) < FD_MINFREE)
elog(FATAL, "pg_nofile: insufficient file descriptors available to start backend.\n"
"\tSystem allows %ld, we need at least %d.",
no_files, RESERVE_FOR_LD + FD_MINFREE);
ereport(FATAL,
(errcode(ERRCODE_INSUFFICIENT_RESOURCES),
errmsg("insufficient file descriptors available to start backend"),
errdetail("System allows %ld, we need at least %d.",
no_files, RESERVE_FOR_LD + FD_MINFREE)));
no_files -= RESERVE_FOR_LD;
}
@ -399,7 +402,7 @@ LruDelete(File file)
/* close the file */
if (close(vfdP->fd))
elog(LOG, "LruDelete: failed to close %s: %m",
elog(LOG, "failed to close \"%s\": %m",
vfdP->fileName);
--nfile;
@ -515,7 +518,9 @@ AllocateVfd(void)
/* initialize header entry first time through */
VfdCache = (Vfd *) malloc(sizeof(Vfd));
if (VfdCache == NULL)
elog(FATAL, "AllocateVfd: no room for VFD array");
ereport(FATAL,
(errcode(ERRCODE_OUT_OF_MEMORY),
errmsg("out of memory")));
MemSet((char *) &(VfdCache[0]), 0, sizeof(Vfd));
VfdCache->fd = VFD_CLOSED;
@ -542,12 +547,13 @@ AllocateVfd(void)
newCacheSize = 32;
/*
* Be careful not to clobber VfdCache ptr if realloc fails; we
* will need it during proc_exit cleanup!
* Be careful not to clobber VfdCache ptr if realloc fails.
*/
newVfdCache = (Vfd *) realloc(VfdCache, sizeof(Vfd) * newCacheSize);
if (newVfdCache == NULL)
elog(FATAL, "AllocateVfd: no room to enlarge VFD array");
ereport(ERROR,
(errcode(ERRCODE_OUT_OF_MEMORY),
errmsg("out of memory")));
VfdCache = newVfdCache;
/*
@ -678,15 +684,22 @@ fileNameOpenFile(FileName fileName,
int fileFlags,
int fileMode)
{
char *fnamecopy;
File file;
Vfd *vfdP;
if (fileName == NULL)
elog(ERROR, "fileNameOpenFile: NULL fname");
DO_DB(elog(LOG, "fileNameOpenFile: %s %x %o",
fileName, fileFlags, fileMode));
/*
* We need a malloc'd copy of the file name; fail cleanly if no room.
*/
fnamecopy = strdup(fileName);
if (fnamecopy == NULL)
ereport(ERROR,
(errcode(ERRCODE_OUT_OF_MEMORY),
errmsg("out of memory")));
file = AllocateVfd();
vfdP = &VfdCache[file];
@ -701,6 +714,7 @@ fileNameOpenFile(FileName fileName,
if (vfdP->fd < 0)
{
FreeVfd(file);
free(fnamecopy);
return -1;
}
++nfile;
@ -709,11 +723,7 @@ fileNameOpenFile(FileName fileName,
Insert(file);
vfdP->fileName = (char *) malloc(strlen(fileName) + 1);
if (vfdP->fileName == NULL)
elog(FATAL, "fileNameOpenFile: no room to save VFD filename");
strcpy(vfdP->fileName, fileName);
vfdP->fileName = fnamecopy;
/* Saved flags are adjusted to be OK for re-opening file */
vfdP->fileFlags = fileFlags & ~(O_CREAT | O_TRUNC | O_EXCL);
vfdP->fileMode = fileMode;
@ -801,7 +811,7 @@ OpenTemporaryFile(bool interXact)
O_RDWR | O_CREAT | O_TRUNC | PG_BINARY,
0600);
if (file <= 0)
elog(ERROR, "Failed to create temporary file %s: %m",
elog(ERROR, "could not create temporary file \"%s\": %m",
tempfilepath);
}
@ -837,7 +847,7 @@ FileClose(File file)
/* close the file */
if (close(vfdP->fd))
elog(LOG, "FileClose: failed to close %s: %m",
elog(LOG, "failed to close \"%s\": %m",
vfdP->fileName);
--nfile;
@ -852,7 +862,7 @@ FileClose(File file)
/* reset flag so that die() interrupt won't cause problems */
vfdP->fdstate &= ~FD_TEMPORARY;
if (unlink(vfdP->fileName))
elog(LOG, "FileClose: failed to unlink %s: %m",
elog(LOG, "failed to unlink \"%s\": %m",
vfdP->fileName);
}
@ -943,7 +953,7 @@ FileSeek(File file, long offset, int whence)
{
case SEEK_SET:
if (offset < 0)
elog(ERROR, "FileSeek: invalid offset: %ld", offset);
elog(ERROR, "invalid seek offset: %ld", offset);
VfdCache[file].seekPos = offset;
break;
case SEEK_CUR:
@ -954,7 +964,7 @@ FileSeek(File file, long offset, int whence)
VfdCache[file].seekPos = lseek(VfdCache[file].fd, offset, whence);
break;
default:
elog(ERROR, "FileSeek: invalid whence: %d", whence);
elog(ERROR, "invalid whence: %d", whence);
break;
}
}
@ -964,7 +974,7 @@ FileSeek(File file, long offset, int whence)
{
case SEEK_SET:
if (offset < 0)
elog(ERROR, "FileSeek: invalid offset: %ld", offset);
elog(ERROR, "invalid seek offset: %ld", offset);
if (VfdCache[file].seekPos != offset)
VfdCache[file].seekPos = lseek(VfdCache[file].fd, offset, whence);
break;
@ -976,7 +986,7 @@ FileSeek(File file, long offset, int whence)
VfdCache[file].seekPos = lseek(VfdCache[file].fd, offset, whence);
break;
default:
elog(ERROR, "FileSeek: invalid whence: %d", whence);
elog(ERROR, "invalid whence: %d", whence);
break;
}
}
@ -1026,7 +1036,7 @@ FileTruncate(File file, long offset)
*
* fd.c will automatically close all files opened with AllocateFile at
* transaction commit or abort; this prevents FD leakage if a routine
* that calls AllocateFile is terminated prematurely by elog(ERROR).
* that calls AllocateFile is terminated prematurely by ereport(ERROR).
*
* Ideally this should be the *only* direct call of fopen() in the backend.
*/
@ -1038,7 +1048,7 @@ AllocateFile(char *name, char *mode)
DO_DB(elog(LOG, "AllocateFile: Allocated %d", numAllocatedFiles));
if (numAllocatedFiles >= MAX_ALLOCATED_FILES)
elog(ERROR, "AllocateFile: too many private FDs demanded");
elog(ERROR, "too many private FDs demanded");
TryAgain:
if ((file = fopen(name, mode)) != NULL)
@ -1052,8 +1062,9 @@ TryAgain:
{
int save_errno = errno;
DO_DB(elog(LOG, "AllocateFile: not enough descs, retry, er= %d",
errno));
ereport(LOG,
(errcode(ERRCODE_INSUFFICIENT_RESOURCES),
errmsg("out of file descriptors: %m; release and retry")));
errno = 0;
if (ReleaseLruFile())
goto TryAgain;
@ -1081,7 +1092,7 @@ FreeFile(FILE *file)
}
}
if (i < 0)
elog(WARNING, "FreeFile: file was not obtained from AllocateFile");
elog(WARNING, "file passed to FreeFile was not obtained from AllocateFile");
fclose(file);
}
@ -1234,7 +1245,7 @@ RemovePgTempFiles(void)
unlink(rm_path);
else
elog(LOG,
"Unexpected file found in temporary-files directory: %s",
"unexpected file found in temporary-files directory: \"%s\"",
rm_path);
}
closedir(temp_dir);