mirror of
https://github.com/MariaDB/server.git
synced 2025-08-01 03:47:19 +03:00
BDB 4.1.24
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This commit is contained in:
unknown
@ -1,20 +1,23 @@
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/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1996, 1997, 1998, 1999, 2000
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* Copyright (c) 1996-2002
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* Sleepycat Software. All rights reserved.
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*/
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#include "db_config.h"
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#ifndef lint
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static const char revid[] = "$Id: client.c,v 1.21 2000/11/30 00:58:44 ubell Exp $";
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static const char revid[] = "$Id: client.c,v 1.51 2002/08/06 06:18:15 bostic Exp $";
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#endif /* not lint */
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#ifdef HAVE_RPC
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#ifdef HAVE_VXWORKS
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#include <rpcLib.h>
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#endif
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#include <rpc/rpc.h>
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#include <ctype.h>
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@ -22,71 +25,124 @@ static const char revid[] = "$Id: client.c,v 1.21 2000/11/30 00:58:44 ubell Exp
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#include <string.h>
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#include <unistd.h>
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#endif
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#include "db_server.h"
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#include "db_int.h"
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#include "txn.h"
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#include "gen_client_ext.h"
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#include "rpc_client_ext.h"
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#include "dbinc/db_page.h"
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#include "dbinc/db_am.h"
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#include "dbinc/txn.h"
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#include "dbinc_auto/db_server.h"
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#include "dbinc_auto/rpc_client_ext.h"
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static int __dbcl_c_destroy __P((DBC *));
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static int __dbcl_txn_close __P((DB_ENV *));
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/*
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* __dbclenv_server --
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* __dbcl_envrpcserver --
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* Initialize an environment's server.
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*
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* PUBLIC: int __dbcl_envserver __P((DB_ENV *, char *, long, long, u_int32_t));
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* PUBLIC: int __dbcl_envrpcserver
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* PUBLIC: __P((DB_ENV *, void *, const char *, long, long, u_int32_t));
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*/
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int
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__dbcl_envserver(dbenv, host, tsec, ssec, flags)
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__dbcl_envrpcserver(dbenv, clnt, host, tsec, ssec, flags)
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DB_ENV *dbenv;
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char *host;
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void *clnt;
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const char *host;
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long tsec, ssec;
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u_int32_t flags;
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{
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CLIENT *cl;
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__env_create_msg req;
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__env_create_reply *replyp;
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struct timeval tp;
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int ret;
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COMPQUIET(flags, 0);
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#ifdef HAVE_VXWORKS
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if ((ret = rpcTaskInit()) != 0) {
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if (rpcTaskInit() != 0) {
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__db_err(dbenv, "Could not initialize VxWorks RPC");
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return (ERROR);
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}
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#endif
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if ((cl =
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clnt_create(host, DB_SERVERPROG, DB_SERVERVERS, "tcp")) == NULL) {
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__db_err(dbenv, clnt_spcreateerror(host));
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return (DB_NOSERVER);
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if (RPC_ON(dbenv)) {
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__db_err(dbenv, "Already set an RPC handle");
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return (EINVAL);
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}
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/*
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* Only create the client and set its timeout if the user
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* did not pass us a client structure to begin with.
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*/
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if (clnt == NULL) {
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if ((cl = clnt_create((char *)host, DB_RPC_SERVERPROG,
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DB_RPC_SERVERVERS, "tcp")) == NULL) {
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__db_err(dbenv, clnt_spcreateerror((char *)host));
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return (DB_NOSERVER);
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}
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if (tsec != 0) {
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tp.tv_sec = tsec;
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tp.tv_usec = 0;
|
||||
(void)clnt_control(cl, CLSET_TIMEOUT, (char *)&tp);
|
||||
}
|
||||
} else {
|
||||
cl = (CLIENT *)clnt;
|
||||
F_SET(dbenv, DB_ENV_RPCCLIENT_GIVEN);
|
||||
}
|
||||
dbenv->cl_handle = cl;
|
||||
|
||||
if (tsec != 0) {
|
||||
tp.tv_sec = tsec;
|
||||
tp.tv_usec = 0;
|
||||
(void)clnt_control(cl, CLSET_TIMEOUT, (char *)&tp);
|
||||
}
|
||||
return (__dbcl_env_create(dbenv, ssec));
|
||||
}
|
||||
|
||||
req.timeout = ssec;
|
||||
/*
|
||||
* CALL THE SERVER
|
||||
*/
|
||||
if ((replyp = __db_env_create_1(&req, cl)) == NULL) {
|
||||
__db_err(dbenv, clnt_sperror(cl, "Berkeley DB"));
|
||||
return (DB_NOSERVER);
|
||||
}
|
||||
/*
|
||||
* __dbcl_env_open_wrap --
|
||||
* Wrapper function for DB_ENV->open function for clients.
|
||||
* We need a wrapper function to deal with DB_USE_ENVIRON* flags
|
||||
* and we don't want to complicate the generated code for env_open.
|
||||
*
|
||||
* PUBLIC: int __dbcl_env_open_wrap
|
||||
* PUBLIC: __P((DB_ENV *, const char *, u_int32_t, int));
|
||||
*/
|
||||
int
|
||||
__dbcl_env_open_wrap(dbenv, home, flags, mode)
|
||||
DB_ENV * dbenv;
|
||||
const char * home;
|
||||
u_int32_t flags;
|
||||
int mode;
|
||||
{
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* Process reply and free up our space from request
|
||||
* SUCCESS: Store ID from server.
|
||||
*/
|
||||
if ((ret = replyp->status) != 0)
|
||||
if (LF_ISSET(DB_THREAD)) {
|
||||
__db_err(dbenv, "DB_THREAD not allowed on RPC clients");
|
||||
return (EINVAL);
|
||||
}
|
||||
if ((ret = __db_home(dbenv, home, flags)) != 0)
|
||||
return (ret);
|
||||
return (__dbcl_env_open(dbenv, dbenv->db_home, flags, mode));
|
||||
}
|
||||
|
||||
dbenv->cl_id = replyp->envcl_id;
|
||||
return (0);
|
||||
/*
|
||||
* __dbcl_db_open_wrap --
|
||||
* Wrapper function for DB->open function for clients.
|
||||
* We need a wrapper function to error on DB_THREAD flag.
|
||||
* and we don't want to complicate the generated code.
|
||||
*
|
||||
* PUBLIC: int __dbcl_db_open_wrap
|
||||
* PUBLIC: __P((DB *, DB_TXN *, const char *, const char *,
|
||||
* PUBLIC: DBTYPE, u_int32_t, int));
|
||||
*/
|
||||
int
|
||||
__dbcl_db_open_wrap(dbp, txnp, name, subdb, type, flags, mode)
|
||||
DB * dbp;
|
||||
DB_TXN * txnp;
|
||||
const char * name;
|
||||
const char * subdb;
|
||||
DBTYPE type;
|
||||
u_int32_t flags;
|
||||
int mode;
|
||||
{
|
||||
if (LF_ISSET(DB_THREAD)) {
|
||||
__db_err(dbp->dbenv, "DB_THREAD not allowed on RPC clients");
|
||||
return (EINVAL);
|
||||
}
|
||||
return (__dbcl_db_open(dbp, txnp, name, subdb, type, flags, mode));
|
||||
}
|
||||
|
||||
/*
|
||||
@ -114,17 +170,50 @@ __dbcl_refresh(dbenv)
|
||||
ret = __dbcl_txn_close(dbenv);
|
||||
dbenv->tx_handle = NULL;
|
||||
}
|
||||
if (cl != NULL)
|
||||
if (!F_ISSET(dbenv, DB_ENV_RPCCLIENT_GIVEN) && cl != NULL)
|
||||
clnt_destroy(cl);
|
||||
dbenv->cl_handle = NULL;
|
||||
if (dbenv->db_home != NULL) {
|
||||
__os_free(dbenv, dbenv->db_home);
|
||||
dbenv->db_home = NULL;
|
||||
}
|
||||
return (ret);
|
||||
}
|
||||
|
||||
/*
|
||||
* __dbcl_retcopy --
|
||||
* Copy the returned data into the user's DBT, handling allocation flags,
|
||||
* but not DB_DBT_PARTIAL.
|
||||
*
|
||||
* PUBLIC: int __dbcl_retcopy __P((DB_ENV *, DBT *,
|
||||
* PUBLIC: void *, u_int32_t, void **, u_int32_t *));
|
||||
*/
|
||||
int
|
||||
__dbcl_retcopy(dbenv, dbt, data, len, memp, memsize)
|
||||
DB_ENV *dbenv;
|
||||
DBT *dbt;
|
||||
void *data;
|
||||
u_int32_t len;
|
||||
void **memp;
|
||||
u_int32_t *memsize;
|
||||
{
|
||||
int ret;
|
||||
u_int32_t orig_flags;
|
||||
|
||||
/*
|
||||
* The RPC server handles DB_DBT_PARTIAL, so we mask it out here to
|
||||
* avoid the handling of partials in __db_retcopy.
|
||||
*/
|
||||
orig_flags = dbt->flags;
|
||||
F_CLR(dbt, DB_DBT_PARTIAL);
|
||||
ret = __db_retcopy(dbenv, dbt, data, len, memp, memsize);
|
||||
dbt->flags = orig_flags;
|
||||
return (ret);
|
||||
}
|
||||
|
||||
/*
|
||||
* __dbcl_txn_close --
|
||||
* Clean up an environment's transactions.
|
||||
*
|
||||
* PUBLIC: int __dbcl_txn_close __P((DB_ENV *));
|
||||
*/
|
||||
int
|
||||
__dbcl_txn_close(dbenv)
|
||||
@ -147,7 +236,7 @@ __dbcl_txn_close(dbenv)
|
||||
while ((txnp = TAILQ_FIRST(&tmgrp->txn_chain)) != NULL)
|
||||
__dbcl_txn_end(txnp);
|
||||
|
||||
__os_free(tmgrp, sizeof(*tmgrp));
|
||||
__os_free(dbenv, tmgrp);
|
||||
return (ret);
|
||||
|
||||
}
|
||||
@ -187,18 +276,57 @@ __dbcl_txn_end(txnp)
|
||||
if (txnp->parent != NULL)
|
||||
TAILQ_REMOVE(&txnp->parent->kids, txnp, klinks);
|
||||
TAILQ_REMOVE(&mgr->txn_chain, txnp, links);
|
||||
__os_free(txnp, sizeof(*txnp));
|
||||
__os_free(dbenv, txnp);
|
||||
}
|
||||
|
||||
return;
|
||||
/*
|
||||
* __dbcl_txn_setup --
|
||||
* Setup a client transaction structure.
|
||||
*
|
||||
* PUBLIC: void __dbcl_txn_setup __P((DB_ENV *, DB_TXN *, DB_TXN *, u_int32_t));
|
||||
*/
|
||||
void
|
||||
__dbcl_txn_setup(dbenv, txn, parent, id)
|
||||
DB_ENV *dbenv;
|
||||
DB_TXN *txn;
|
||||
DB_TXN *parent;
|
||||
u_int32_t id;
|
||||
{
|
||||
txn->mgrp = dbenv->tx_handle;
|
||||
txn->parent = parent;
|
||||
txn->txnid = id;
|
||||
|
||||
/*
|
||||
* XXX
|
||||
* In DB library the txn_chain is protected by the mgrp->mutexp.
|
||||
* However, that mutex is implemented in the environments shared
|
||||
* memory region. The client library does not support all of the
|
||||
* region - that just get forwarded to the server. Therefore,
|
||||
* the chain is unprotected here, but properly protected on the
|
||||
* server.
|
||||
*/
|
||||
TAILQ_INSERT_TAIL(&txn->mgrp->txn_chain, txn, links);
|
||||
|
||||
TAILQ_INIT(&txn->kids);
|
||||
|
||||
if (parent != NULL)
|
||||
TAILQ_INSERT_HEAD(&parent->kids, txn, klinks);
|
||||
|
||||
txn->abort = __dbcl_txn_abort;
|
||||
txn->commit = __dbcl_txn_commit;
|
||||
txn->discard = __dbcl_txn_discard;
|
||||
txn->id = __txn_id;
|
||||
txn->prepare = __dbcl_txn_prepare;
|
||||
txn->set_timeout = __dbcl_txn_timeout;
|
||||
|
||||
txn->flags = TXN_MALLOC;
|
||||
}
|
||||
|
||||
/*
|
||||
* __dbcl_c_destroy --
|
||||
* Destroy a cursor.
|
||||
*
|
||||
* PUBLIC: int __dbcl_c_destroy __P((DBC *));
|
||||
*/
|
||||
int
|
||||
static int
|
||||
__dbcl_c_destroy(dbc)
|
||||
DBC *dbc;
|
||||
{
|
||||
@ -207,7 +335,14 @@ __dbcl_c_destroy(dbc)
|
||||
dbp = dbc->dbp;
|
||||
|
||||
TAILQ_REMOVE(&dbp->free_queue, dbc, links);
|
||||
__os_free(dbc, sizeof(*dbc));
|
||||
/* Discard any memory used to store returned data. */
|
||||
if (dbc->my_rskey.data != NULL)
|
||||
__os_free(dbc->dbp->dbenv, dbc->my_rskey.data);
|
||||
if (dbc->my_rkey.data != NULL)
|
||||
__os_free(dbc->dbp->dbenv, dbc->my_rkey.data);
|
||||
if (dbc->my_rdata.data != NULL)
|
||||
__os_free(dbc->dbp->dbenv, dbc->my_rdata.data);
|
||||
__os_free(NULL, dbc);
|
||||
|
||||
return (0);
|
||||
}
|
||||
@ -219,24 +354,23 @@ __dbcl_c_destroy(dbc)
|
||||
* PUBLIC: void __dbcl_c_refresh __P((DBC *));
|
||||
*/
|
||||
void
|
||||
__dbcl_c_refresh(dbcp)
|
||||
DBC *dbcp;
|
||||
__dbcl_c_refresh(dbc)
|
||||
DBC *dbc;
|
||||
{
|
||||
DB *dbp;
|
||||
|
||||
dbp = dbcp->dbp;
|
||||
dbcp->flags = 0;
|
||||
dbcp->cl_id = 0;
|
||||
dbp = dbc->dbp;
|
||||
dbc->flags = 0;
|
||||
dbc->cl_id = 0;
|
||||
|
||||
/*
|
||||
* If dbp->cursor fails locally, we use a local dbc so that
|
||||
* we can close it. In that case, dbp will be NULL.
|
||||
*/
|
||||
if (dbp != NULL) {
|
||||
TAILQ_REMOVE(&dbp->active_queue, dbcp, links);
|
||||
TAILQ_INSERT_TAIL(&dbp->free_queue, dbcp, links);
|
||||
TAILQ_REMOVE(&dbp->active_queue, dbc, links);
|
||||
TAILQ_INSERT_TAIL(&dbp->free_queue, dbc, links);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -246,13 +380,13 @@ __dbcl_c_refresh(dbcp)
|
||||
* PUBLIC: int __dbcl_c_setup __P((long, DB *, DBC **));
|
||||
*/
|
||||
int
|
||||
__dbcl_c_setup(cl_id, dbp, dbcpp)
|
||||
__dbcl_c_setup(cl_id, dbp, dbcp)
|
||||
long cl_id;
|
||||
DB *dbp;
|
||||
DBC **dbcpp;
|
||||
DBC **dbcp;
|
||||
{
|
||||
DBC *dbc, tmpdbc;
|
||||
int ret, t_ret;
|
||||
int ret;
|
||||
|
||||
if ((dbc = TAILQ_FIRST(&dbp->free_queue)) != NULL)
|
||||
TAILQ_REMOVE(&dbp->free_queue, dbc, links);
|
||||
@ -260,12 +394,12 @@ __dbcl_c_setup(cl_id, dbp, dbcpp)
|
||||
if ((ret =
|
||||
__os_calloc(dbp->dbenv, 1, sizeof(DBC), &dbc)) != 0) {
|
||||
/*
|
||||
* If we die here, set up a tmp dbc to call the
|
||||
* server to shut down that cursor.
|
||||
*/
|
||||
* If we die here, set up a tmp dbc to call the
|
||||
* server to shut down that cursor.
|
||||
*/
|
||||
tmpdbc.dbp = NULL;
|
||||
tmpdbc.cl_id = cl_id;
|
||||
t_ret = __dbcl_dbc_close(&tmpdbc);
|
||||
(void)__dbcl_dbc_close(&tmpdbc);
|
||||
return (ret);
|
||||
}
|
||||
dbc->c_close = __dbcl_dbc_close;
|
||||
@ -273,62 +407,14 @@ __dbcl_c_setup(cl_id, dbp, dbcpp)
|
||||
dbc->c_del = __dbcl_dbc_del;
|
||||
dbc->c_dup = __dbcl_dbc_dup;
|
||||
dbc->c_get = __dbcl_dbc_get;
|
||||
dbc->c_pget = __dbcl_dbc_pget;
|
||||
dbc->c_put = __dbcl_dbc_put;
|
||||
dbc->c_am_destroy = __dbcl_c_destroy;
|
||||
}
|
||||
dbc->cl_id = cl_id;
|
||||
dbc->dbp = dbp;
|
||||
TAILQ_INSERT_TAIL(&dbp->active_queue, dbc, links);
|
||||
*dbcpp = dbc;
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* __dbcl_retcopy --
|
||||
* Copy the returned data into the user's DBT, handling special flags
|
||||
* as they apply to a client. Modeled after __db_retcopy().
|
||||
*
|
||||
* PUBLIC: int __dbcl_retcopy __P((DB_ENV *, DBT *, void *, u_int32_t));
|
||||
*/
|
||||
int
|
||||
__dbcl_retcopy(dbenv, dbt, data, len)
|
||||
DB_ENV *dbenv;
|
||||
DBT *dbt;
|
||||
void *data;
|
||||
u_int32_t len;
|
||||
{
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* No need to handle DB_DBT_PARTIAL here, server already did.
|
||||
*/
|
||||
dbt->size = len;
|
||||
|
||||
/*
|
||||
* Allocate memory to be owned by the application: DB_DBT_MALLOC
|
||||
* and DB_DBT_REALLOC. Always allocate even if we're copying 0 bytes.
|
||||
* Or use memory specified by application: DB_DBT_USERMEM.
|
||||
*/
|
||||
if (F_ISSET(dbt, DB_DBT_MALLOC)) {
|
||||
if ((ret = __os_malloc(dbenv, len, NULL, &dbt->data)) != 0)
|
||||
return (ret);
|
||||
} else if (F_ISSET(dbt, DB_DBT_REALLOC)) {
|
||||
if ((ret = __os_realloc(dbenv, len, NULL, &dbt->data)) != 0)
|
||||
return (ret);
|
||||
} else if (F_ISSET(dbt, DB_DBT_USERMEM)) {
|
||||
if (len != 0 && (dbt->data == NULL || dbt->ulen < len))
|
||||
return (ENOMEM);
|
||||
} else {
|
||||
/*
|
||||
* If no user flags, then set the DBT to point to the
|
||||
* returned data pointer and return.
|
||||
*/
|
||||
dbt->data = data;
|
||||
return (0);
|
||||
}
|
||||
|
||||
if (len != 0)
|
||||
memcpy(dbt->data, data, len);
|
||||
*dbcp = dbc;
|
||||
return (0);
|
||||
}
|
||||
|
||||
@ -363,9 +449,16 @@ __dbcl_dbclose_common(dbp)
|
||||
|
||||
TAILQ_INIT(&dbp->free_queue);
|
||||
TAILQ_INIT(&dbp->active_queue);
|
||||
/* Discard any memory used to store returned data. */
|
||||
if (dbp->my_rskey.data != NULL)
|
||||
__os_free(dbp->dbenv, dbp->my_rskey.data);
|
||||
if (dbp->my_rkey.data != NULL)
|
||||
__os_free(dbp->dbenv, dbp->my_rkey.data);
|
||||
if (dbp->my_rdata.data != NULL)
|
||||
__os_free(dbp->dbenv, dbp->my_rdata.data);
|
||||
|
||||
memset(dbp, CLEAR_BYTE, sizeof(*dbp));
|
||||
__os_free(dbp, sizeof(*dbp));
|
||||
__os_free(NULL, dbp);
|
||||
return (ret);
|
||||
}
|
||||
#endif /* HAVE_RPC */
|
||||
|
||||
Reference in New Issue
Block a user