gen_client_ret.c
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:10k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 2000
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: gen_client_ret.c,v 1.29 2000/12/31 19:26:23 bostic Exp $";
- #endif /* not lint */
- #ifdef HAVE_RPC
- #ifndef NO_SYSTEM_INCLUDES
- #include <sys/types.h>
- #include <rpc/rpc.h>
- #include <string.h>
- #endif
- #include "db_server.h"
- #include "db_int.h"
- #include "db_page.h"
- #include "txn.h"
- #include "db_ext.h"
- #include "rpc_client_ext.h"
- static void __db_db_stat_statsfree __P((u_int32_t *));
- static int __db_db_stat_statslist __P((__db_stat_statsreplist *, u_int32_t **));
- int
- __dbcl_env_close_ret(dbenv, flags, replyp)
- DB_ENV *dbenv;
- u_int32_t flags;
- __env_close_reply *replyp;
- {
- int ret;
- COMPQUIET(flags, 0);
- ret = __dbcl_refresh(dbenv);
- __os_free(dbenv, sizeof(*dbenv));
- if (replyp->status == 0 && ret != 0)
- return (ret);
- else
- return (replyp->status);
- }
- int
- __dbcl_env_open_ret(dbenv, home, flags, mode, replyp)
- DB_ENV *dbenv;
- const char *home;
- u_int32_t flags;
- int mode;
- __env_open_reply *replyp;
- {
- DB_TXNMGR *tmgrp;
- int ret;
- COMPQUIET(home, NULL);
- COMPQUIET(mode, 0);
- /*
- * If error, return it.
- */
- if (replyp->status != 0)
- return (replyp->status);
- /*
- * If the user requested transactions, then we have some
- * local client-side setup to do also.
- */
- if (LF_ISSET(DB_INIT_TXN)) {
- if ((ret = __os_calloc(dbenv,
- 1, sizeof(DB_TXNMGR), &tmgrp)) != 0)
- return (ret);
- TAILQ_INIT(&tmgrp->txn_chain);
- tmgrp->dbenv = dbenv;
- dbenv->tx_handle = tmgrp;
- }
- return (replyp->status);
- }
- int
- __dbcl_env_remove_ret(dbenv, home, flags, replyp)
- DB_ENV *dbenv;
- const char *home;
- u_int32_t flags;
- __env_remove_reply *replyp;
- {
- int ret;
- COMPQUIET(home, NULL);
- COMPQUIET(flags, 0);
- ret = __dbcl_refresh(dbenv);
- __os_free(dbenv, sizeof(*dbenv));
- if (replyp->status == 0 && ret != 0)
- return (ret);
- else
- return (replyp->status);
- }
- int
- __dbcl_txn_abort_ret(txnp, replyp)
- DB_TXN *txnp;
- __txn_abort_reply *replyp;
- {
- __dbcl_txn_end(txnp);
- return (replyp->status);
- }
- int
- __dbcl_txn_begin_ret(envp, parent, txnpp, flags, replyp)
- DB_ENV *envp;
- DB_TXN *parent, **txnpp;
- u_int32_t flags;
- __txn_begin_reply *replyp;
- {
- DB_TXN *txn;
- int ret;
- COMPQUIET(flags, 0);
- if (replyp->status != 0)
- return (replyp->status);
- if ((ret = __os_calloc(envp, 1, sizeof(DB_TXN), &txn)) != 0)
- return (ret);
- txn->txnid = replyp->txnidcl_id;
- txn->mgrp = envp->tx_handle;
- txn->parent = parent;
- TAILQ_INIT(&txn->kids);
- txn->flags = TXN_MALLOC;
- if (parent != NULL)
- TAILQ_INSERT_HEAD(&parent->kids, txn, klinks);
- /*
- * 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);
- *txnpp = txn;
- return (replyp->status);
- }
- int
- __dbcl_txn_commit_ret(txnp, flags, replyp)
- DB_TXN *txnp;
- u_int32_t flags;
- __txn_commit_reply *replyp;
- {
- COMPQUIET(flags, 0);
- __dbcl_txn_end(txnp);
- return (replyp->status);
- }
- int
- __dbcl_db_close_ret(dbp, flags, replyp)
- DB *dbp;
- u_int32_t flags;
- __db_close_reply *replyp;
- {
- int ret;
- COMPQUIET(flags, 0);
- ret = __dbcl_dbclose_common(dbp);
- if (replyp->status != 0)
- return (replyp->status);
- else
- return (ret);
- }
- int
- __dbcl_db_get_ret(dbp, txnp, key, data, flags, replyp)
- DB *dbp;
- DB_TXN *txnp;
- DBT *key, *data;
- u_int32_t flags;
- __db_get_reply *replyp;
- {
- DB_ENV *dbenv;
- int ret;
- void *oldkey;
- COMPQUIET(txnp, NULL);
- COMPQUIET(flags, 0);
- ret = 0;
- if (replyp->status != 0)
- return (replyp->status);
- dbenv = dbp->dbenv;
- oldkey = key->data;
- ret = __dbcl_retcopy(dbenv, key, replyp->keydata.keydata_val,
- replyp->keydata.keydata_len);
- if (ret)
- return (ret);
- ret = __dbcl_retcopy(dbenv, data, replyp->datadata.datadata_val,
- replyp->datadata.datadata_len);
- /*
- * If an error on copying 'data' and we allocated for 'key'
- * free it before returning the error.
- */
- if (ret && oldkey != NULL)
- __os_free(key->data, key->size);
- return (ret);
- }
- int
- __dbcl_db_key_range_ret(dbp, txnp, key, range, flags, replyp)
- DB *dbp;
- DB_TXN *txnp;
- DBT *key;
- DB_KEY_RANGE *range;
- u_int32_t flags;
- __db_key_range_reply *replyp;
- {
- COMPQUIET(dbp, NULL);
- COMPQUIET(txnp, NULL);
- COMPQUIET(key, NULL);
- COMPQUIET(flags, 0);
- if (replyp->status != 0)
- return (replyp->status);
- range->less = replyp->less;
- range->equal = replyp->equal;
- range->greater = replyp->greater;
- return (replyp->status);
- }
- int
- __dbcl_db_open_ret(dbp, name, subdb, type, flags, mode, replyp)
- DB *dbp;
- const char *name, *subdb;
- DBTYPE type;
- u_int32_t flags;
- int mode;
- __db_open_reply *replyp;
- {
- COMPQUIET(name, NULL);
- COMPQUIET(subdb, NULL);
- COMPQUIET(type, 0);
- COMPQUIET(flags, 0);
- COMPQUIET(mode, 0);
- dbp->type = replyp->type;
- /*
- * XXX
- * This is only for Tcl which peeks at the dbp flags.
- * When dbp->get_flags exists, this should go away.
- */
- dbp->flags = replyp->dbflags;
- return (replyp->status);
- }
- int
- __dbcl_db_put_ret(dbp, txnp, key, data, flags, replyp)
- DB *dbp;
- DB_TXN *txnp;
- DBT *key, *data;
- u_int32_t flags;
- __db_put_reply *replyp;
- {
- int ret;
- COMPQUIET(dbp, NULL);
- COMPQUIET(txnp, NULL);
- COMPQUIET(data, NULL);
- ret = replyp->status;
- if (replyp->status == 0 && (flags == DB_APPEND))
- *(db_recno_t *)key->data =
- *(db_recno_t *)replyp->keydata.keydata_val;
- return (ret);
- }
- int
- __dbcl_db_remove_ret(dbp, name, subdb, flags, replyp)
- DB *dbp;
- const char *name, *subdb;
- u_int32_t flags;
- __db_remove_reply *replyp;
- {
- int ret;
- COMPQUIET(name, 0);
- COMPQUIET(subdb, 0);
- COMPQUIET(flags, 0);
- ret = __dbcl_dbclose_common(dbp);
- if (replyp->status != 0)
- return (replyp->status);
- else
- return (ret);
- }
- int
- __dbcl_db_rename_ret(dbp, name, subdb, newname, flags, replyp)
- DB *dbp;
- const char *name, *subdb, *newname;
- u_int32_t flags;
- __db_remove_reply *replyp;
- {
- int ret;
- COMPQUIET(name, 0);
- COMPQUIET(subdb, 0);
- COMPQUIET(newname, 0);
- COMPQUIET(flags, 0);
- ret = __dbcl_dbclose_common(dbp);
- if (replyp->status != 0)
- return (replyp->status);
- else
- return (ret);
- }
- int
- __dbcl_db_stat_ret(dbp, sp, func, flags, replyp)
- DB *dbp;
- void *sp;
- void *(*func) __P((size_t));
- u_int32_t flags;
- __db_stat_reply *replyp;
- {
- int ret;
- u_int32_t *__db_statslist;
- COMPQUIET(dbp, NULL);
- COMPQUIET(func, NULL);
- COMPQUIET(flags, 0);
- if (replyp->status != 0)
- return (replyp->status);
- if ((ret =
- __db_db_stat_statslist(replyp->statslist, &__db_statslist)) != 0)
- return (ret);
- if (sp == NULL)
- __db_db_stat_statsfree(__db_statslist);
- else
- *(u_int32_t **)sp = __db_statslist;
- return (replyp->status);
- }
- static int
- __db_db_stat_statslist(locp, ppp)
- __db_stat_statsreplist *locp;
- u_int32_t **ppp;
- {
- u_int32_t *pp;
- int cnt, ret, size;
- __db_stat_statsreplist *nl;
- for (cnt = 0, nl = locp; nl != NULL; cnt++, nl = nl->next)
- ;
- if (cnt == 0) {
- *ppp = NULL;
- return (0);
- }
- size = sizeof(*pp) * cnt;
- if ((ret = __os_malloc(NULL, size, NULL, ppp)) != 0)
- return (ret);
- memset(*ppp, 0, size);
- for (pp = *ppp, nl = locp; nl != NULL; nl = nl->next, pp++) {
- *pp = *(u_int32_t *)nl->ent.ent_val;
- }
- return (0);
- }
- static void
- __db_db_stat_statsfree(pp)
- u_int32_t *pp;
- {
- size_t size;
- u_int32_t *p;
- if (pp == NULL)
- return;
- size = sizeof(*p);
- for (p = pp; *p != 0; p++)
- size += sizeof(*p);
- __os_free(pp, size);
- }
- int
- __dbcl_db_cursor_ret(dbp, txnp, dbcpp, flags, replyp)
- DB *dbp;
- DB_TXN *txnp;
- DBC **dbcpp;
- u_int32_t flags;
- __db_cursor_reply *replyp;
- {
- COMPQUIET(txnp, NULL);
- COMPQUIET(flags, 0);
- if (replyp->status != 0)
- return (replyp->status);
- return (__dbcl_c_setup(replyp->dbcidcl_id, dbp, dbcpp));
- }
- int
- __dbcl_db_join_ret(dbp, curs, dbcpp, flags, replyp)
- DB *dbp;
- DBC **curs, **dbcpp;
- u_int32_t flags;
- __db_join_reply *replyp;
- {
- COMPQUIET(curs, NULL);
- COMPQUIET(flags, 0);
- if (replyp->status != 0)
- return (replyp->status);
- /*
- * We set this up as a normal cursor. We do not need
- * to treat a join cursor any differently than a normal
- * cursor, even though DB itself must. We only need the
- * client-side cursor/db relationship to know what cursors
- * are open in the db, and to store their ID. Nothing else.
- */
- return (__dbcl_c_setup(replyp->dbcidcl_id, dbp, dbcpp));
- }
- int
- __dbcl_dbc_close_ret(dbcp, replyp)
- DBC *dbcp;
- __dbc_close_reply *replyp;
- {
- DB *dbp;
- dbp = dbcp->dbp;
- __dbcl_c_refresh(dbcp);
- return (replyp->status);
- }
- int
- __dbcl_dbc_count_ret(dbc, countp, flags, replyp)
- DBC *dbc;
- db_recno_t *countp;
- u_int32_t flags;
- __dbc_count_reply *replyp;
- {
- COMPQUIET(dbc, NULL);
- COMPQUIET(flags, 0);
- if (replyp->status != 0)
- return (replyp->status);
- *countp = replyp->dupcount;
- return (replyp->status);
- }
- int
- __dbcl_dbc_dup_ret(dbcp, dbcpp, flags, replyp)
- DBC *dbcp, **dbcpp;
- u_int32_t flags;
- __dbc_dup_reply *replyp;
- {
- COMPQUIET(flags, 0);
- if (replyp->status != 0)
- return (replyp->status);
- return (__dbcl_c_setup(replyp->dbcidcl_id, dbcp->dbp, dbcpp));
- }
- int
- __dbcl_dbc_get_ret(dbcp, key, data, flags, replyp)
- DBC *dbcp;
- DBT *key, *data;
- u_int32_t flags;
- __dbc_get_reply *replyp;
- {
- DB_ENV *dbenv;
- int ret;
- void *oldkey;
- COMPQUIET(flags, 0);
- ret = 0;
- if (replyp->status != 0)
- return (replyp->status);
- dbenv = dbcp->dbp->dbenv;
- oldkey = key->data;
- ret = __dbcl_retcopy(dbenv, key, replyp->keydata.keydata_val,
- replyp->keydata.keydata_len);
- if (ret)
- return (ret);
- ret = __dbcl_retcopy(dbenv, data, replyp->datadata.datadata_val,
- replyp->datadata.datadata_len);
- /*
- * If an error on copying 'data' and we allocated for 'key'
- * free it before returning the error.
- */
- if (ret && oldkey != NULL)
- __os_free(key->data, key->size);
- return (ret);
- }
- int
- __dbcl_dbc_put_ret(dbcp, key, data, flags, replyp)
- DBC *dbcp;
- DBT *key, *data;
- u_int32_t flags;
- __dbc_put_reply *replyp;
- {
- COMPQUIET(data, NULL);
- if (replyp->status != 0)
- return (replyp->status);
- if (replyp->status == 0 && dbcp->dbp->type == DB_RECNO &&
- (flags == DB_AFTER || flags == DB_BEFORE))
- *(db_recno_t *)key->data =
- *(db_recno_t *)replyp->keydata.keydata_val;
- return (replyp->status);
- }
- #endif /* HAVE_RPC */