diff options
| author | svn2git <svn2git@FreeBSD.org> | 1994-05-01 08:00:00 +0000 |
|---|---|---|
| committer | svn2git <svn2git@FreeBSD.org> | 1994-05-01 08:00:00 +0000 |
| commit | a16f65c7d117419bd266c28a1901ef129a337569 (patch) | |
| tree | 2626602f66dc3551e7a7c7bc9ad763c3bc7ab40a /lib/libc/db/btree/bt_open.c | |
| parent | 8503f4f13f77abf7adc8f7e329c6f9c1d52b6a20 (diff) | |
Diffstat (limited to 'lib/libc/db/btree/bt_open.c')
| -rw-r--r-- | lib/libc/db/btree/bt_open.c | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/lib/libc/db/btree/bt_open.c b/lib/libc/db/btree/bt_open.c index f918124042e8..feeffa4c6bf2 100644 --- a/lib/libc/db/btree/bt_open.c +++ b/lib/libc/db/btree/bt_open.c @@ -35,7 +35,7 @@ */ #if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)bt_open.c 8.1 (Berkeley) 6/4/93"; +static char sccsid[] = "@(#)bt_open.c 8.3 (Berkeley) 9/16/93"; #endif /* LIBC_SCCS and not lint */ /* @@ -83,9 +83,9 @@ static int tmp __P((void)); * */ DB * -__bt_open(fname, flags, mode, openinfo) +__bt_open(fname, flags, mode, openinfo, dflags) const char *fname; - int flags, mode; + int flags, mode, dflags; const BTREEINFO *openinfo; { BTMETA m; @@ -156,19 +156,17 @@ __bt_open(fname, flags, mode, openinfo) /* Allocate and initialize DB and BTREE structures. */ if ((t = malloc(sizeof(BTREE))) == NULL) goto err; - t->bt_fd = -1; /* Don't close unopened fd on error. */ - if ((t->bt_dbp = dbp = malloc(sizeof(DB))) == NULL) - goto err; + memset(t, 0, sizeof(BTREE)); t->bt_bcursor.pgno = P_INVALID; - t->bt_bcursor.index = 0; - t->bt_stack = NULL; - t->bt_sp = t->bt_maxstack = 0; - t->bt_kbuf = t->bt_dbuf = NULL; - t->bt_kbufsz = t->bt_dbufsz = 0; + t->bt_fd = -1; /* Don't close unopened fd on error. */ t->bt_lorder = b.lorder; t->bt_order = NOT; t->bt_cmp = b.compare; t->bt_pfx = b.prefix; + t->bt_rfd = -1; + + if ((t->bt_dbp = dbp = malloc(sizeof(DB))) == NULL) + goto err; t->bt_flags = 0; if (t->bt_lorder != machine_lorder) SET(t, B_NEEDSWAP); @@ -199,8 +197,7 @@ __bt_open(fname, flags, mode, openinfo) goto einval; } - if ((t->bt_fd = - open(fname, flags & __USE_OPEN_FLAGS, mode)) < 0) + if ((t->bt_fd = open(fname, flags, mode)) < 0) goto err; } else { @@ -314,6 +311,14 @@ __bt_open(fname, flags, mode, openinfo) if (nroot(t) == RET_ERROR) goto err; + /* Global flags. */ + if (dflags & DB_LOCK) + SET(t, B_DB_LOCK); + if (dflags & DB_SHMEM) + SET(t, B_DB_SHMEM); + if (dflags & DB_TXN) + SET(t, B_DB_TXN); + return (dbp); einval: errno = EINVAL; @@ -420,6 +425,13 @@ __bt_fd(dbp) t = dbp->internal; + /* Toss any page pinned across calls. */ + if (t->bt_pinned != NULL) { + mpool_put(t->bt_mp, t->bt_pinned, 0); + t->bt_pinned = NULL; + } + + /* In-memory database can't have a file descriptor. */ if (ISSET(t, B_INMEM)) { errno = ENOENT; return (-1); |