BDB 4.1.24

BitKeeper/deleted/.del-ex_access.wpj~3df6ae8c99bf7c5f:
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BitKeeper/deleted/.del-ex_btrec.wpj~a7622f1c6f432dc6:
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BitKeeper/deleted/.del-ex_dbclient.wpj~7345440f3b204cdd:
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BitKeeper/deleted/.del-ex_env.wpj~fbe1ab10b04e8b74:
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BitKeeper/deleted/.del-ex_mpool.wpj~4479cfd5c45f327d:
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BitKeeper/deleted/.del-ex_tpcb.wpj~f78093006e14bf41:
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BitKeeper/deleted/.del-db_buildall.dsp~bd749ff6da11682:
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BitKeeper/deleted/.del-cxx_app.cpp~ad8df8e0791011ed:
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BitKeeper/deleted/.del-cxx_table.cpp~ecd751e79b055556:
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BitKeeper/deleted/.del-Design.fileop~3ca4da68f1727373:
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BitKeeper/deleted/.del-db185_int.h~61bee3736e7959ef:
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BitKeeper/deleted/.del-acconfig.h~411e8854d67ad8b5:
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BitKeeper/deleted/.del-options.m4~b9d0ca637213750a:
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BitKeeper/deleted/.del-programs.m4~3ce7890b47732b30:
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BitKeeper/deleted/.del-tcl.m4~f944e2db93c3b6db:
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BitKeeper/deleted/.del-types.m4~59cae158c9a32cff:
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BitKeeper/deleted/.del-rec_ctemp~a28554362534f00a:
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BitKeeper/deleted/.del-.IGNORE_ME~d8148b08fa7d5d15:
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BitKeeper/deleted/.del-btree.h~179f2aefec1753d:
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BitKeeper/deleted/.del-cxx_int.h~6b649c04766508f8:
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BitKeeper/deleted/.del-db_join.h~76f9747a42c3399a:
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BitKeeper/deleted/.del-db_verify.h~b8d6c297c61f342e:
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BitKeeper/deleted/.del-debug.h~dc2b4f2cf27ccebc:
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BitKeeper/deleted/.del-log.h~ff20184238e35e4d:
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BitKeeper/deleted/.del-mp.h~7e317597622f3411:
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BitKeeper/deleted/.del-DbTxnRecover.java~74607cba7ab89d6d:
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BitKeeper/deleted/.del-Design~b3d0f179f2767b:
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BitKeeper/deleted/.del-os_abs.c~df95d1e7db81924:
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BitKeeper/deleted/.del-os_map.c~3a6d7926398b76d3:
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BitKeeper/deleted/.del-os_finit.c~19a227c6d3c78ad:
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BitKeeper/deleted/.del-log-corruption.patch~1cf2ecc7c6408d5d:
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BitKeeper/deleted/.del-Btree.pm~af6d0c5eaed4a98e:
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BitKeeper/deleted/.del-queue.t~8f338034ce44a641:
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BitKeeper/deleted/.del-subdb.t~aab62a5d5864c603:
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BitKeeper/deleted/.del-txn.t~65033b8558ae1216:
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1 files changed, 207 insertions, 114 deletions

diff --git a/bdb/rpc_client/client.c b/bdb/rpc_client/client.c
index 70744f54b4c..b6367e21449 100644
--- a/bdb/rpc_client/client.c
+++ b/bdb/rpc_client/client.c
@@ -1,20 +1,23 @@
 /*-
  * See the file LICENSE for redistribution information.
  *
- * Copyright (c) 1996, 1997, 1998, 1999, 2000
+ * Copyright (c) 1996-2002
  *	Sleepycat Software.  All rights reserved.
  */
 
 #include "db_config.h"
 
 #ifndef lint
-static const char revid[] = "$Id: client.c,v 1.21 2000/11/30 00:58:44 ubell Exp $";
+static const char revid[] = "$Id: client.c,v 1.51 2002/08/06 06:18:15 bostic Exp $";
 #endif /* not lint */
 
 #ifdef HAVE_RPC
 #ifndef NO_SYSTEM_INCLUDES
 #include <sys/types.h>
 
+#ifdef HAVE_VXWORKS
+#include <rpcLib.h>
+#endif
 #include <rpc/rpc.h>
 
 #include <ctype.h>
@@ -22,71 +25,124 @@ static const char revid[] = "$Id: client.c,v 1.21 2000/11/30 00:58:44 ubell Exp
 #include <string.h>
 #include <unistd.h>
 #endif
-#include "db_server.h"
 
 #include "db_int.h"
-#include "txn.h"
-#include "gen_client_ext.h"
-#include "rpc_client_ext.h"
+#include "dbinc/db_page.h"
+#include "dbinc/db_am.h"
+#include "dbinc/txn.h"
+
+#include "dbinc_auto/db_server.h"
+#include "dbinc_auto/rpc_client_ext.h"
+
+static int __dbcl_c_destroy __P((DBC *));
+static int __dbcl_txn_close __P((DB_ENV *));
 
 /*
- * __dbclenv_server --
+ * __dbcl_envrpcserver --
  *	Initialize an environment's server.
  *
- * PUBLIC: int __dbcl_envserver __P((DB_ENV *, char *, long, long, u_int32_t));
+ * PUBLIC: int __dbcl_envrpcserver
+ * PUBLIC:     __P((DB_ENV *, void *, const char *, long, long, u_int32_t));
  */
 int
-__dbcl_envserver(dbenv, host, tsec, ssec, flags)
+__dbcl_envrpcserver(dbenv, clnt, host, tsec, ssec, flags)
 	DB_ENV *dbenv;
-	char *host;
+	void *clnt;
+	const char *host;
 	long tsec, ssec;
 	u_int32_t flags;
 {
 	CLIENT *cl;
-	__env_create_msg req;
-	__env_create_reply *replyp;
 	struct timeval tp;
-	int ret;
 
 	COMPQUIET(flags, 0);
 
 #ifdef HAVE_VXWORKS
-	if ((ret = rpcTaskInit()) != 0) {
+	if (rpcTaskInit() != 0) {
 		__db_err(dbenv, "Could not initialize VxWorks RPC");
 		return (ERROR);
 	}
 #endif
-	if ((cl =
-	    clnt_create(host, DB_SERVERPROG, DB_SERVERVERS, "tcp")) == NULL) {
-		__db_err(dbenv, clnt_spcreateerror(host));
-		return (DB_NOSERVER);
+	if (RPC_ON(dbenv)) {
+		__db_err(dbenv, "Already set an RPC handle");
+		return (EINVAL);
 	}
-	dbenv->cl_handle = cl;
-
-	if (tsec != 0) {
-		tp.tv_sec = tsec;
-		tp.tv_usec = 0;
-		(void)clnt_control(cl, CLSET_TIMEOUT, (char *)&tp);
-	}
-
-	req.timeout = ssec;
 	/*
-	 * CALL THE SERVER
+	 * Only create the client and set its timeout if the user
+	 * did not pass us a client structure to begin with.
 	 */
-	if ((replyp = __db_env_create_1(&req, cl)) == NULL) {
-		__db_err(dbenv, clnt_sperror(cl, "Berkeley DB"));
-		return (DB_NOSERVER);
+	if (clnt == NULL) {
+		if ((cl = clnt_create((char *)host, DB_RPC_SERVERPROG,
+		    DB_RPC_SERVERVERS, "tcp")) == NULL) {
+			__db_err(dbenv, clnt_spcreateerror((char *)host));
+			return (DB_NOSERVER);
+		}
+		if (tsec != 0) {
+			tp.tv_sec = tsec;
+			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;
 
-	/*
-	 * Process reply and free up our space from request
-	 * SUCCESS:  Store ID from server.
-	 */
-	if ((ret = replyp->status) != 0)
+	return (__dbcl_env_create(dbenv, ssec));
+}
+
+/*
+ * __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;
+
+	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 */