diff options
author | Ulrich Drepper <drepper@redhat.com> | 1997-08-27 20:26:10 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1997-08-27 20:26:10 +0000 |
commit | 92f1da4da04a7a86ddee91be5eaf0b10c333ac64 (patch) | |
tree | 2a10ce9e4e407e7e5b5ca092ca0947d234b5ff60 /db2/dbm/dbm.c | |
parent | 22be878ecbc66606371bd33258f56e6711e6ba7a (diff) | |
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Update.cvs/libc-ud-970827
1997-08-10 19:17 Philip Blundell <Philip.Blundell@pobox.com>
* nss/nss_db/db-XXX.c: Include <db_185.h> not <db.h>. Somebody
should update this to use the new db API.
* nss/nss_db/db-netgrp.c: Likewise.
* nss/nss_db/db-alias.c: Likewise.
* db2/Makefile: Makefile for db-2.x in glibc.
1997-08-27 21:20 Ulrich Drepper <drepper@cygnus.com>
* csu/Makefile (before-compile): New goal. Make sure abi-tag.h
is generated.
[$(elf)=yes] (asm-CPPFLAGS): Make sure abi-tag.h file can be found.
* Makeconfig [$(build-omitfp)=yes] (CFLAGS-.o): Add
-D__USE_STRING_INLINES.
* string/string.f: Move strnlen optimization after inclusion of
<bits/string.h>. Include <bits/string.h> only if __USE_STRING_INLINES
is defined.
* sysdeps/generic/memcpy.c: Undef memcpy to allow macro of this name
in <bits/string.h>.
* sysdeps/generic/memset.c: Likewise.
* sysdeps/i386/string.h: i386 optimized string functions.
* sysdeps/i386/i486string.h: i486+ optimized string functions.
* Makefile (subdirs): Change db to db2.
* shlib-versions: Bump libdb verion number to 3.
* include/db.h: Include from db2 directory.
* include/db_185.h: New file.
* sysdeps/i386/Makefile [$(subdirs)=db2] (CPPFLAGS): Add macros
to provide spinlock information for db2.
* sysdeps/m68k/m68020/Makefile: New file. Likewise.
* sysdeps/sparc/Makefile: New file. Likewise.
* sysdeps/unix/sysv/linux/Makefile [$(subdirs)=db2] (CPPFLAGS):
Add -DHAVE_LLSEEK.
* db2/config.h: Hand-edited config file for db2 in glibc.
* db2/compat.h: New file from db-2.3.4.
* db2/db.h: Likewise.
* db2/db_185.h: Likewise.
* db2/db_int.h: Likewise.
* db2/makedb.c: Likewise.
* db2/btree/bt_close.c: Likewise.
* db2/btree/bt_compare.c: Likewise.
* db2/btree/bt_conv.c: Likewise.
* db2/btree/bt_cursor.c: Likewise.
* db2/btree/bt_delete.c: Likewise.
* db2/btree/bt_open.c: Likewise.
* db2/btree/bt_page.c: Likewise.
* db2/btree/bt_put.c: Likewise.
* db2/btree/bt_rec.c: Likewise.
* db2/btree/bt_recno.c: Likewise.
* db2/btree/btree_auto.c: Likewise.
* db2/btree/bt_rsearch.c: Likewise.
* db2/btree/bt_search.c: Likewise.
* db2/btree/bt_split.c: Likewise.
* db2/btree/bt_stat.c: Likewise.
* db2/btree/btree.src: Likewise.
* db2/common/db_appinit.c: Likewise.
* db2/common/db_err.c: Likewise.
* db2/common/db_byteorder.c: Likewise.
* db2/common/db_apprec.c: Likewise.
* db2/common/db_salloc.c: Likewise.
* db2/common/db_log2.c: Likewise.
* db2/common/db_region.c: Likewise.
* db2/common/db_shash.c: Likewise.
* db2/db/db.c: Likewise.
* db2/db/db.src: Likewise.
* db2/db/db_conv.c: Likewise.
* db2/db/db_dispatch.c: Likewise.
* db2/db/db_dup.c: Likewise.
* db2/db/db_overflow.c: Likewise.
* db2/db/db_pr.c: Likewise.
* db2/db/db_rec.c: Likewise.
* db2/db/db_ret.c: Likewise.
* db2/db/db_thread.c: Likewise.
* db2/db/db_auto.c: Likewise.
* db2/db185/db185.c: Likewise.
* db2/db185/db185_int.h: Likewise.
* db2/dbm/dbm.c: Likewise.
* db2/hash/hash.c: Likewise.
* db2/hash/hash.src: Likewise.
* db2/hash/hash_page.c: Likewise.
* db2/hash/hash_conv.c: Likewise.
* db2/hash/hash_debug.c: Likewise.
* db2/hash/hash_stat.c: Likewise.
* db2/hash/hash_rec.c: Likewise.
* db2/hash/hash_dup.c: Likewise.
* db2/hash/hash_func.c: Likewise.
* db2/hash/hash_auto.c: Likewise.
* db2/include/mp.h: Likewise.
* db2/include/btree.h: Likewise.
* db2/include/db.h.src: Likewise.
* db2/include/db_int.h.src: Likewise.
* db2/include/db_shash.h: Likewise.
* db2/include/db_swap.h: Likewise.
* db2/include/db_185.h.src: Likewise.
* db2/include/txn.h: Likewise.
* db2/include/db_am.h: Likewise.
* db2/include/shqueue.h: Likewise.
* db2/include/hash.h: Likewise.
* db2/include/db_dispatch.h: Likewise.
* db2/include/lock.h: Likewise.
* db2/include/db_page.h: Likewise.
* db2/include/log.h: Likewise.
* db2/include/db_auto.h: Likewise.
* db2/include/btree_auto.h: Likewise.
* db2/include/hash_auto.h: Likewise.
* db2/include/log_auto.h: Likewise.
* db2/include/txn_auto.h: Likewise.
* db2/include/db_ext.h: Likewise.
* db2/include/btree_ext.h: Likewise.
* db2/include/clib_ext.h: Likewise.
* db2/include/common_ext.h: Likewise.
* db2/include/hash_ext.h: Likewise.
* db2/include/lock_ext.h: Likewise.
* db2/include/log_ext.h: Likewise.
* db2/include/mp_ext.h: Likewise.
* db2/include/mutex_ext.h: Likewise.
* db2/include/os_ext.h: Likewise.
* db2/include/txn_ext.h: Likewise.
* db2/include/cxx_int.h: Likewise.
* db2/include/db_cxx.h: Likewise.
* db2/include/queue.h: Likewise.
* db2/lock/lock.c: Likewise.
* db2/lock/lock_conflict.c: Likewise.
* db2/lock/lock_util.c: Likewise.
* db2/lock/lock_deadlock.c: Likewise.
* db2/log/log.c: Likewise.
* db2/log/log_get.c: Likewise.
* db2/log/log.src: Likewise.
* db2/log/log_compare.c: Likewise.
* db2/log/log_put.c: Likewise.
* db2/log/log_rec.c: Likewise.
* db2/log/log_archive.c: Likewise.
* db2/log/log_register.c: Likewise.
* db2/log/log_auto.c: Likewise.
* db2/log/log_findckp.c: Likewise.
* db2/mp/mp_bh.c: Likewise.
* db2/mp/mp_fget.c: Likewise.
* db2/mp/mp_fopen.c: Likewise.
* db2/mp/mp_fput.c: Likewise.
* db2/mp/mp_fset.c: Likewise.
* db2/mp/mp_open.c: Likewise.
* db2/mp/mp_region.c: Likewise.
* db2/mp/mp_pr.c: Likewise.
* db2/mp/mp_sync.c: Likewise.
* db2/mutex/68020.gcc: Likewise.
* db2/mutex/mutex.c: Likewise.
* db2/mutex/README: Likewise.
* db2/mutex/x86.gcc: Likewise.
* db2/mutex/sparc.gcc: Likewise.
* db2/mutex/uts4.cc.s: Likewise.
* db2/mutex/alpha.dec: Likewise.
* db2/mutex/alpha.gcc: Likewise.
* db2/mutex/parisc.gcc: Likewise.
* db2/mutex/parisc.hp: Likewise.
* db2/os/db_os_abs.c: Likewise.
* db2/os/db_os_dir.c: Likewise.
* db2/os/db_os_fid.c: Likewise.
* db2/os/db_os_lseek.c: Likewise.
* db2/os/db_os_mmap.c: Likewise.
* db2/os/db_os_open.c: Likewise.
* db2/os/db_os_rw.c: Likewise.
* db2/os/db_os_sleep.c: Likewise.
* db2/os/db_os_stat.c: Likewise.
* db2/os/db_os_unlink.c: Likewise.
* db2/txn/txn.c: Likewise.
* db2/txn/txn.src: Likewise.
* db2/txn/txn_rec.c: Likewise.
* db2/txn/txn_auto.c: Likewise.
* db2/clib/getlong.c: Likewise.
* db2/progs/db_archive/db_archive.c: Likewise.
* db2/progs/db_checkpoint/db_checkpoint.c: Likewise.
* db2/progs/db_deadlock/db_deadlock.c: Likewise.
* db2/progs/db_dump/db_dump.c: Likewise.
* db2/progs/db_dump185/db_dump185.c: Likewise.
* db2/progs/db_load/db_load.c: Likewise.
* db2/progs/db_printlog/db_printlog.c: Likewise.
* db2/progs/db_recover/db_recover.c: Likewise.
* db2/progs/db_stat/db_stat.c: Likewise.
* libio/stdio.h [__cplusplus] (__STDIO_INLINE): Define as inline.
* po/de.po, po/sv.po: Update from 2.0.5 translations.
* sysdeps/unix/sysv/linux/netinet/tcp.h: Pretty print.
* sunrpc/rpc/xdr.h (XDR): Don't define argument of x_destroy callback
as const.
* sunrpc/xdr_mem.c (xdrmem_destroy): Don't define argument as const.
* sunrpx/xdr_rec.c (xdrrec_destroy): Likewise.
* sunrpx/xdr_stdio.c (xdrstdio_destroy): Likewise.
1997-08-27 18:47 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/if_index.c: Include <errno.h>.
Reported by Benjamin Kosnik <bkoz@cygnus.com>.
1997-08-27 02:27 Roland McGrath <roland@baalperazim.frob.com>
* abi-tags: New file.
* csu/Makefile (distribute): Remove abi-tag.h.
($(objpfx)abi-tag.h): New target.
* Makefile (distribute): Add abi-tags.
* sysdeps/unix/sysv/linux/abi-tag.h: File removed.
* sysdeps/mach/hurd/abi-tag.h: File removed.
* sysdeps/stub/abi-tag.h: File removed.
1997-08-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/make-syscalls.sh: Change output so that it
generates compilation rules only for the currently selected object
suffixes.
1997-08-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/dl-machine.h (RTLD_START): Switch back to previous
section to avoid confusing the compiler.
* sysdeps/alpha/dl-machine.h (RTLD_START): Likewise.
* sysdeps/i386/dl-machine.h (RTLD_START): Likewise.
* sysdeps/mips/dl-machine.h (RTLD_START): Likewise.
* sysdeps/mips/mips64/dl-machine.h (RTLD_START): Likewise.
* sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise.
* sysdeps/m68k/dl-machine.h (elf_machine_load_address): Use a GOT
relocation instead of a constant to avoid text relocation.
(ELF_MACHINE_BEFORE_RTLD_RELOC): Removed.
(RTLD_START): Declare global labels as functions and add size
directive.
1997-08-25 17:01 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/i386/bits/select.h: Correct assembler versions to work even
for descriptors >= 32.
* stdlib/alloca.h: Don't define alloca to __alloca since if gcc
is used __alloca is not defined to __builtin_alloca and so might
not be available.
Reported by Uwe Ohse <uwe@ohse.de>.
* sysdeps/unix/sysv/linux/sys/sysmacros.h: Define macros in a special
way if gcc is not used and so dev_t is an array.
Reported by Uwe Ohse <uwe@ohse.de>.
1997-08-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* manual/libc.texinfo: Reorder chapters to match logical order.
1997-08-25 12:22 Ulrich Drepper <drepper@cygnus.com>
* sunrpc/rpc/xdr.h: Change name of parameters in prototypes of
xdr_reference, xdrmem_create, and xdrstdio_create because of clash
with g++ internal symbols.
Patch by Sudish Joseph <sj@eng.mindspring.net>.
* elf/dl-deps.c: Implement handling of DT_FILTER.
Diffstat (limited to 'db2/dbm/dbm.c')
-rw-r--r-- | db2/dbm/dbm.c | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/db2/dbm/dbm.c b/db2/dbm/dbm.c new file mode 100644 index 0000000000..8daa980f5a --- /dev/null +++ b/db2/dbm/dbm.c @@ -0,0 +1,410 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1996, 1997 + * Sleepycat Software. All rights reserved. + */ +/* + * Copyright (c) 1990, 1993 + * Margo Seltzer. All rights reserved. + */ +/* + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Margo Seltzer. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)dbm.c 10.5 (Sleepycat) 7/19/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/param.h> + +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <string.h> +#endif + +#define DB_DBM_HSEARCH +#include "db_int.h" + +#include "db_page.h" +#include "hash.h" + +/* + * + * This package provides dbm and ndbm compatible interfaces to DB. + * + * The DBM routines, which call the NDBM routines. + */ +static DBM *__cur_db; + +static void __db_no_open __P((void)); + +/* Provide prototypes here since there are none in db.h. */ +int dbm_error __P((DBM *)); +int dbm_clearerr __P((DBM *)); +int dbm_dirfno __P((DBM *)); +int dbm_pagfno __P((DBM *)); + +int +dbminit(file) + char *file; +{ + if (__cur_db != NULL) + (void)dbm_close(__cur_db); + if ((__cur_db = + dbm_open(file, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR)) != NULL) + return (0); + if ((__cur_db = dbm_open(file, O_RDONLY, 0)) != NULL) + return (0); + return (-1); +} + +datum +fetch(key) + datum key; +{ + datum item; + + if (__cur_db == NULL) { + __db_no_open(); + item.dptr = 0; + return (item); + } + return (dbm_fetch(__cur_db, key)); +} + +datum +firstkey() +{ + datum item; + + if (__cur_db == NULL) { + __db_no_open(); + item.dptr = 0; + return (item); + } + return (dbm_firstkey(__cur_db)); +} + +datum +nextkey(key) + datum key; +{ + datum item; + + if (__cur_db == NULL) { + __db_no_open(); + item.dptr = 0; + return (item); + } + return (dbm_nextkey(__cur_db)); +} + +int +delete(key) + datum key; +{ + int ret; + + if (__cur_db == NULL) { + __db_no_open(); + return (-1); + } + ret = dbm_delete(__cur_db, key); + if (ret == 0) + ret = (((DB *)__cur_db)->sync)((DB *)__cur_db, 0); + return (ret); +} + +int +store(key, dat) + datum key, dat; +{ + int ret; + + if (__cur_db == NULL) { + __db_no_open(); + return (-1); + } + ret = dbm_store(__cur_db, key, dat, DBM_REPLACE); + if (ret == 0) + ret = (((DB *)__cur_db)->sync)((DB *)__cur_db, 0); + return (ret); +} + +static void +__db_no_open() +{ + (void)fprintf(stderr, "dbm: no open database.\n"); +} + +/* + * This package provides dbm and ndbm compatible interfaces to DB. + * + * The NDBM routines, which call the DB routines. + */ +/* + * Returns: + * *DBM on success + * NULL on failure + */ +DBM * +dbm_open(file, oflags, mode) + const char *file; + int oflags, mode; +{ + DB *dbp; + DB_INFO dbinfo; + char path[MAXPATHLEN]; + + memset(&dbinfo, 0, sizeof(dbinfo)); + dbinfo.db_pagesize = 4096; + dbinfo.h_ffactor = 40; + dbinfo.h_nelem = 1; + + (void)snprintf(path, sizeof(path), "%s%s", file, DBM_SUFFIX); + if ((errno = db_open(path, + DB_HASH, __db_oflags(oflags), mode, NULL, &dbinfo, &dbp)) != 0) + return (NULL); + return ((DBM *)dbp); +} + +/* + * Returns: + * Nothing. + */ +void +dbm_close(db) + DBM *db; +{ + (void)db->close(db, 0); +} + +/* + * Returns: + * DATUM on success + * NULL on failure + */ +datum +dbm_fetch(db, key) + DBM *db; + datum key; +{ + DBT _key, _data; + datum data; + int status; + + memset(&_key, 0, sizeof(DBT)); + memset(&_data, 0, sizeof(DBT)); + _key.size = key.dsize; + _key.data = key.dptr; + status = db->get((DB *)db, NULL, &_key, &_data, 0); + if (status) { + data.dptr = NULL; + data.dsize = 0; + } else { + data.dptr = _data.data; + data.dsize = _data.size; + } + return (data); +} + +/* + * Returns: + * DATUM on success + * NULL on failure + */ +datum +dbm_firstkey(db) + DBM *db; +{ + DBT _key, _data; + datum key; + int status; + + DBC *cp; + + if ((cp = TAILQ_FIRST(&db->curs_queue)) == NULL) + if ((errno = db->cursor(db, NULL, &cp)) != 0) { + memset(&key, 0, sizeof(key)); + return (key); + } + + memset(&_key, 0, sizeof(DBT)); + memset(&_data, 0, sizeof(DBT)); + status = (cp->c_get)(cp, &_key, &_data, DB_FIRST); + if (status) { + key.dptr = NULL; + key.dsize = 0; + } else { + key.dptr = _key.data; + key.dsize = _key.size; + } + return (key); +} + +/* + * Returns: + * DATUM on success + * NULL on failure + */ +datum +dbm_nextkey(db) + DBM *db; +{ + DBC *cp; + DBT _key, _data; + datum key; + int status; + + if ((cp = TAILQ_FIRST(&db->curs_queue)) == NULL) + if ((errno = db->cursor(db, NULL, &cp)) != 0) { + memset(&key, 0, sizeof(key)); + return (key); + } + + memset(&_key, 0, sizeof(DBT)); + memset(&_data, 0, sizeof(DBT)); + status = (cp->c_get)(cp, &_key, &_data, DB_NEXT); + if (status) { + key.dptr = NULL; + key.dsize = 0; + } else { + key.dptr = _key.data; + key.dsize = _key.size; + } + return (key); +} + +/* + * Returns: + * 0 on success + * <0 failure + */ +int +dbm_delete(db, key) + DBM *db; + datum key; +{ + DBT _key; + int ret; + + memset(&_key, 0, sizeof(DBT)); + _key.data = key.dptr; + _key.size = key.dsize; + ret = (((DB *)db)->del)((DB *)db, NULL, &_key, 0); + if (ret < 0) + errno = ENOENT; + else if (ret > 0) { + errno = ret; + ret = -1; + } + return (ret); +} + +/* + * Returns: + * 0 on success + * <0 failure + * 1 if DBM_INSERT and entry exists + */ +int +dbm_store(db, key, data, flags) + DBM *db; + datum key, data; + int flags; +{ + DBT _key, _data; + + memset(&_key, 0, sizeof(DBT)); + memset(&_data, 0, sizeof(DBT)); + _key.data = key.dptr; + _key.size = key.dsize; + _data.data = data.dptr; + _data.size = data.dsize; + return (db->put((DB *)db, + NULL, &_key, &_data, (flags == DBM_INSERT) ? DB_NOOVERWRITE : 0)); +} + +int +dbm_error(db) + DBM *db; +{ + HTAB *hp; + + hp = (HTAB *)db->internal; + return (hp->local_errno); +} + +int +dbm_clearerr(db) + DBM *db; +{ + HTAB *hp; + + hp = (HTAB *)db->internal; + hp->local_errno = 0; + return (0); +} + +/* + * XXX + * We only have a single file descriptor that we can return, not two. Return + * the same one for both files. Hopefully, the user is using it for locking + * and picked one to use at random. + */ +int +dbm_dirfno(db) + DBM *db; +{ + int fd; + + (void)db->fd(db, &fd); + return (fd); +} + +int +dbm_pagfno(db) + DBM *db; +{ + int fd; + + (void)db->fd(db, &fd); + return (fd); +} |