diff options
Diffstat (limited to 'src/backend/storage/file/fd.c')
| -rw-r--r-- | src/backend/storage/file/fd.c | 49 |
1 files changed, 29 insertions, 20 deletions
diff --git a/src/backend/storage/file/fd.c b/src/backend/storage/file/fd.c index 2fb8165d2f..11ca95e833 100644 --- a/src/backend/storage/file/fd.c +++ b/src/backend/storage/file/fd.c @@ -7,7 +7,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/storage/file/fd.c,v 1.119 2005/08/07 18:47:19 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/storage/file/fd.c,v 1.120 2005/08/08 03:11:49 tgl Exp $ * * NOTES: * @@ -297,6 +297,33 @@ pg_fdatasync(int fd) } /* + * InitFileAccess --- initialize this module during backend startup + * + * This is called during either normal or standalone backend start. + * It is *not* called in the postmaster. + */ +void +InitFileAccess(void) +{ + Assert(SizeVfdCache == 0); /* call me only once */ + + /* initialize cache header entry */ + VfdCache = (Vfd *) malloc(sizeof(Vfd)); + if (VfdCache == NULL) + ereport(FATAL, + (errcode(ERRCODE_OUT_OF_MEMORY), + errmsg("out of memory"))); + + MemSet((char *) &(VfdCache[0]), 0, sizeof(Vfd)); + VfdCache->fd = VFD_CLOSED; + + SizeVfdCache = 1; + + /* register proc-exit hook to ensure temp files are dropped at exit */ + on_proc_exit(AtProcExit_Files, 0); +} + +/* * count_usable_fds --- count how many FDs the system will let us open, * and estimate how many are already open. * @@ -622,25 +649,7 @@ AllocateVfd(void) DO_DB(elog(LOG, "AllocateVfd. Size %d", SizeVfdCache)); - if (SizeVfdCache == 0) - { - /* initialize header entry first time through */ - VfdCache = (Vfd *) malloc(sizeof(Vfd)); - if (VfdCache == NULL) - ereport(FATAL, - (errcode(ERRCODE_OUT_OF_MEMORY), - errmsg("out of memory"))); - MemSet((char *) &(VfdCache[0]), 0, sizeof(Vfd)); - VfdCache->fd = VFD_CLOSED; - - SizeVfdCache = 1; - - /* - * register proc-exit call to ensure temp files are dropped at - * exit - */ - on_proc_exit(AtProcExit_Files, 0); - } + Assert(SizeVfdCache > 0); /* InitFileAccess not called? */ if (VfdCache[0].nextFree == 0) { |