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author | Ulrich Drepper <drepper@redhat.com> | 1999-06-13 13:36:34 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1999-06-13 13:36:34 +0000 |
commit | ec239360d13518a13f572b635d036c7d10028010 (patch) | |
tree | bdb5111363f45d2107849c2456b575d72779174c /db2/dbm/dbm.c | |
parent | fc3703521650a9b6db910a50c4fc0f410496e134 (diff) | |
download | glibc-ec239360d13518a13f572b635d036c7d10028010.tar.gz glibc-ec239360d13518a13f572b635d036c7d10028010.tar.xz glibc-ec239360d13518a13f572b635d036c7d10028010.zip |
Update.
* db2/Makefile (distribute): Remove files which do not exist anymore.
Diffstat (limited to 'db2/dbm/dbm.c')
-rw-r--r-- | db2/dbm/dbm.c | 199 |
1 files changed, 127 insertions, 72 deletions
diff --git a/db2/dbm/dbm.c b/db2/dbm/dbm.c index 261fe81ff2..5bcb53f023 100644 --- a/db2/dbm/dbm.c +++ b/db2/dbm/dbm.c @@ -47,7 +47,7 @@ #include "config.h" #ifndef lint -static const char sccsid[] = "@(#)dbm.c 10.16 (Sleepycat) 5/7/98"; +static const char sccsid[] = "@(#)dbm.c 10.23 (Sleepycat) 11/22/98"; #endif /* not lint */ #ifndef NO_SYSTEM_INCLUDES @@ -89,6 +89,16 @@ __db_dbm_init(file) } weak_alias (__db_dbm_init, dbminit) +int +__db_dbm_close() +{ + if (__cur_db != NULL) { + dbm_close(__cur_db); + __cur_db = NULL; + } + return (0); +} + datum __db_dbm_fetch(key) datum key; @@ -140,16 +150,11 @@ int __db_dbm_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); + return (dbm_delete(__cur_db, key)); } weak_alias (__db_dbm_delete, delete) @@ -157,16 +162,11 @@ int __db_dbm_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); + return (dbm_store(__cur_db, key, dat, DBM_REPLACE)); } weak_alias (__db_dbm_store, store) @@ -192,7 +192,9 @@ __db_ndbm_open(file, oflags, mode) int oflags, mode; { DB *dbp; + DBC *dbc; DB_INFO dbinfo; + int sv_errno; char path[MAXPATHLEN]; memset(&dbinfo, 0, sizeof(dbinfo)); @@ -215,7 +217,15 @@ __db_ndbm_open(file, oflags, mode) if ((errno = db_open(path, DB_HASH, __db_oflags(oflags), mode, NULL, &dbinfo, &dbp)) != 0) return (NULL); - return ((DBM *)dbp); + + if ((errno = dbp->cursor(dbp, NULL, &dbc, 0)) != 0) { + sv_errno = errno; + (void)dbp->close(dbp, 0); + errno = sv_errno; + return (NULL); + } + + return ((DBM *)dbc); } weak_alias (__db_ndbm_open, dbm_open) @@ -224,10 +234,14 @@ weak_alias (__db_ndbm_open, dbm_open) * Nothing. */ void -__db_ndbm_close(db) - DBM *db; +__db_ndbm_close(dbm) + DBM *dbm; { - (void)db->close(db, 0); + DBC *dbc; + + dbc = (DBC *)dbm; + + (void)dbc->dbp->close(dbc->dbp, 0); } weak_alias (__db_ndbm_close, dbm_close) @@ -237,25 +251,39 @@ weak_alias (__db_ndbm_close, dbm_close) * NULL on failure */ datum -__db_ndbm_fetch(db, key) - DBM *db; +__db_ndbm_fetch(dbm, key) + DBM *dbm; datum key; { + DBC *dbc; DBT _key, _data; datum data; int ret; + dbc = (DBC *)dbm; + memset(&_key, 0, sizeof(DBT)); memset(&_data, 0, sizeof(DBT)); _key.size = key.dsize; _key.data = key.dptr; - if ((ret = db->get((DB *)db, NULL, &_key, &_data, 0)) == 0) { + + /* + * Note that we can't simply use the dbc we have to do a c_get/SET, + * because that cursor is the one used for sequential iteration and + * it has to remain stable in the face of intervening gets and puts. + */ + if ((ret = dbc->dbp->get(dbc->dbp, NULL, &_key, &_data, 0)) == 0) { data.dptr = _data.data; data.dsize = _data.size; } else { data.dptr = NULL; data.dsize = 0; - __set_errno (ret == DB_NOTFOUND ? ENOENT : ret); + if (ret == DB_NOTFOUND) + errno = ENOENT; + else { + errno = ret; + F_SET(dbc->dbp, DB_DBM_ERROR); + } } return (data); } @@ -267,30 +295,31 @@ weak_alias (__db_ndbm_fetch, dbm_fetch) * NULL on failure */ datum -__db_ndbm_firstkey(db) - DBM *db; +__db_ndbm_firstkey(dbm) + DBM *dbm; { + DBC *dbc; DBT _key, _data; datum key; int ret; - 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); - } + dbc = (DBC *)dbm; memset(&_key, 0, sizeof(DBT)); memset(&_data, 0, sizeof(DBT)); - if ((ret = (cp->c_get)(cp, &_key, &_data, DB_FIRST)) == 0) { + + if ((ret = dbc->c_get(dbc, &_key, &_data, DB_FIRST)) == 0) { key.dptr = _key.data; key.dsize = _key.size; } else { key.dptr = NULL; key.dsize = 0; - __set_errno (ret == DB_NOTFOUND ? ENOENT : ret); + if (ret == DB_NOTFOUND) + errno = ENOENT; + else { + errno = ret; + F_SET(dbc->dbp, DB_DBM_ERROR); + } } return (key); } @@ -302,29 +331,31 @@ weak_alias (__db_ndbm_firstkey, dbm_firstkey) * NULL on failure */ datum -__db_ndbm_nextkey(db) - DBM *db; +__db_ndbm_nextkey(dbm) + DBM *dbm; { - DBC *cp; + DBC *dbc; DBT _key, _data; datum key; int ret; - if ((cp = TAILQ_FIRST(&db->curs_queue)) == NULL) - if ((errno = db->cursor(db, NULL, &cp)) != 0) { - memset(&key, 0, sizeof(key)); - return (key); - } + dbc = (DBC *)dbm; memset(&_key, 0, sizeof(DBT)); memset(&_data, 0, sizeof(DBT)); - if ((ret = (cp->c_get)(cp, &_key, &_data, DB_NEXT)) == 0) { + + if ((ret = dbc->c_get(dbc, &_key, &_data, DB_NEXT)) == 0) { key.dptr = _key.data; key.dsize = _key.size; } else { key.dptr = NULL; key.dsize = 0; - __set_errno (ret == DB_NOTFOUND ? ENOENT : ret); + if (ret == DB_NOTFOUND) + errno = ENOENT; + else { + errno = ret; + F_SET(dbc->dbp, DB_DBM_ERROR); + } } return (key); } @@ -336,19 +367,29 @@ weak_alias (__db_ndbm_nextkey, dbm_nextkey) * <0 failure */ int -__db_ndbm_delete(db, key) - DBM *db; +__db_ndbm_delete(dbm, key) + DBM *dbm; datum key; { + DBC *dbc; DBT _key; int ret; + dbc = (DBC *)dbm; + memset(&_key, 0, sizeof(DBT)); _key.data = key.dptr; _key.size = key.dsize; - if ((ret = (((DB *)db)->del)((DB *)db, NULL, &_key, 0)) == 0) + + if ((ret = dbc->dbp->del(dbc->dbp, NULL, &_key, 0)) == 0) return (0); - errno = ret == DB_NOTFOUND ? ENOENT : ret; + + if (ret == DB_NOTFOUND) + errno = ENOENT; + else { + errno = ret; + F_SET(dbc->dbp, DB_DBM_ERROR); + } return (-1); } weak_alias (__db_ndbm_delete, dbm_delete) @@ -360,49 +401,59 @@ weak_alias (__db_ndbm_delete, dbm_delete) * 1 if DBM_INSERT and entry exists */ int -__db_ndbm_store(db, key, data, flags) - DBM *db; +__db_ndbm_store(dbm, key, data, flags) + DBM *dbm; datum key, data; int flags; { + DBC *dbc; DBT _key, _data; int ret; + dbc = (DBC *)dbm; + memset(&_key, 0, sizeof(DBT)); - memset(&_data, 0, sizeof(DBT)); _key.data = key.dptr; _key.size = key.dsize; + + memset(&_data, 0, sizeof(DBT)); _data.data = data.dptr; _data.size = data.dsize; - if ((ret = db->put((DB *)db, NULL, + + if ((ret = dbc->dbp->put(dbc->dbp, NULL, &_key, &_data, flags == DBM_INSERT ? DB_NOOVERWRITE : 0)) == 0) return (0); + if (ret == DB_KEYEXIST) return (1); + errno = ret; + F_SET(dbc->dbp, DB_DBM_ERROR); return (-1); } weak_alias (__db_ndbm_store, dbm_store) int -__db_ndbm_error(db) - DBM *db; +__db_ndbm_error(dbm) + DBM *dbm; { - HTAB *hp; + DBC *dbc; - hp = (HTAB *)db->internal; - return (hp->local_errno); + dbc = (DBC *)dbm; + + return (F_ISSET(dbc->dbp, DB_DBM_ERROR)); } weak_alias (__db_ndbm_error, dbm_error) int -__db_ndbm_clearerr(db) - DBM *db; +__db_ndbm_clearerr(dbm) + DBM *dbm; { - HTAB *hp; + DBC *dbc; + + dbc = (DBC *)dbm; - hp = (HTAB *)db->internal; - hp->local_errno = 0; + F_CLR(dbc->dbp, DB_DBM_ERROR); return (0); } weak_alias (__db_ndbm_clearerr, dbm_clearerr) @@ -413,10 +464,14 @@ weak_alias (__db_ndbm_clearerr, dbm_clearerr) * 0 if not read-only */ int -__db_ndbm_rdonly(db) - DBM *db; +__db_ndbm_rdonly(dbm) + DBM *dbm; { - return (F_ISSET((DB *)db, DB_AM_RDONLY) ? 1 : 0); + DBC *dbc; + + dbc = (DBC *)dbm; + + return (F_ISSET(dbc->dbp, DB_AM_RDONLY) ? 1 : 0); } /* @@ -426,23 +481,23 @@ __db_ndbm_rdonly(db) * and picked one to use at random. */ int -__db_ndbm_dirfno(db) - DBM *db; +__db_ndbm_dirfno(dbm) + DBM *dbm; { - int fd; - - (void)db->fd(db, &fd); - return (fd); + return (dbm_pagfno(dbm)); } weak_alias (__db_ndbm_dirfno, dbm_dirfno) int -__db_ndbm_pagfno(db) - DBM *db; +__db_ndbm_pagfno(dbm) + DBM *dbm; { + DBC *dbc; int fd; - (void)db->fd(db, &fd); + dbc = (DBC *)dbm; + + (void)dbc->dbp->fd(dbc->dbp, &fd); return (fd); } weak_alias (__db_ndbm_pagfno, dbm_pagfno) |