diff options
Diffstat (limited to 'storage/connect/user_connect.cc')
-rw-r--r-- | storage/connect/user_connect.cc | 321 |
1 files changed, 160 insertions, 161 deletions
diff --git a/storage/connect/user_connect.cc b/storage/connect/user_connect.cc index 165ef423e7c..e170352874f 100644 --- a/storage/connect/user_connect.cc +++ b/storage/connect/user_connect.cc @@ -1,161 +1,160 @@ -/* Copyright (C) Olivier Bertrand 2004 - 2012
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; version 2 of the License.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
-
-/**
- @file user_connect.cc
-
- @brief
- Implements the user_connect class.
-
- @details
- To support multi_threading, each query creates and use a PlugDB "user"
- that is a connection with its personnal memory allocation.
-
- @note
-
-*/
-
-/****************************************************************************/
-/* Author: Olivier Bertrand -- bertrandop@gmail.com -- 2004-2012 */
-/****************************************************************************/
-#ifdef USE_PRAGMA_IMPLEMENTATION
-#pragma implementation // gcc: Class implementation
-#endif
-
-#define DONT_DEFINE_VOID
-#define MYSQL_SERVER
-#include "sql_class.h"
-#undef OFFSET
-
-#define NOPARSE
-#include "osutil.h"
-#include "global.h"
-#include "plgdbsem.h"
-#include "connect.h"
-#include "user_connect.h"
-#include "mycat.h"
-
-extern "C" char plgxini[];
-extern int xtrace;
-
-/****************************************************************************/
-/* Initialize the user_connect static member. */
-/****************************************************************************/
-PCONNECT user_connect::to_users= NULL;
-
-/* -------------------------- class user_connect -------------------------- */
-
-/****************************************************************************/
-/* Constructor. */
-/****************************************************************************/
-user_connect::user_connect(THD *thd, const char *dbn)
-{
- thdp= thd;
- next= NULL;
- previous= NULL;
- g= NULL;
- last_query_id= 0;
- count= 0;
-
- // Statistics
- nrd= fnd= nfd= 0;
- tb1= 0;
-} // end of user_connect constructor
-
-
-/****************************************************************************/
-/* Destructor. */
-/****************************************************************************/
-user_connect::~user_connect()
-{
- // Terminate CONNECT and Plug-like environment, should return NULL
- g= CntExit(g);
-} // end of user_connect destructor
-
-
-/****************************************************************************/
-/* Initialization. */
-/****************************************************************************/
-bool user_connect::user_init()
-{
- // Initialize Plug-like environment
- PACTIVITY ap= NULL;
- PDBUSER dup= NULL;
-
- // Areasize= 64M because of VEC tables. Should be parameterisable
- g= PlugInit(NULL, 67108864);
-//g= PlugInit(NULL, 134217728); // 128M was because of old embedded tests
-
- // Check whether the initialization is complete
- if (!g || !g->Sarea || PlugSubSet(g, g->Sarea, g->Sarea_Size)
- || !(dup= PlgMakeUser(g))) {
- if (g)
- printf("%s\n", g->Message);
-
- int rc= PlugExit(g);
- g= NULL;
- free(dup);
- return true;
- } // endif g->
-
- dup->Catalog= new MYCAT(NULL);
-
- ap= new ACTIVITY;
- memset(ap, 0, sizeof(ACTIVITY));
- strcpy(ap->Ap_Name, "CONNECT");
- g->Activityp= ap;
- g->Activityp->Aptr= dup;
- next= to_users;
- to_users= this;
-
- if (next)
- next->previous= this;
-
- last_query_id= thdp->query_id;
- count= 1;
- return false;
-} // end of user_init
-
-
-void user_connect::SetHandler(ha_connect *hc)
-{
- PDBUSER dup= (PDBUSER)g->Activityp->Aptr;
- MYCAT *mc= (MYCAT*)dup->Catalog;
- mc->SetHandler(hc);
-}
-
-/****************************************************************************/
-/* Check whether we begin a new query and if so cleanup the previous one. */
-/****************************************************************************/
-bool user_connect::CheckCleanup(void)
-{
- if (thdp->query_id > last_query_id) {
- PlugCleanup(g, true);
- PlugSubSet(g, g->Sarea, g->Sarea_Size);
- g->Xchk = NULL;
- g->Createas = 0;
- g->Alchecked = 0;
- g->Mrr = 0;
- last_query_id= thdp->query_id;
-
- if (xtrace)
- printf("=====> Begin new query %llu\n", last_query_id);
-
- return true;
- } // endif query_id
-
- return false;
-} // end of CheckCleanup
-
+/* Copyright (C) Olivier Bertrand 2004 - 2014 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +/** + @file user_connect.cc + + @brief + Implements the user_connect class. + + @details + To support multi_threading, each query creates and use a PlugDB "user" + that is a connection with its personnal memory allocation. + + @note + +*/ + +/****************************************************************************/ +/* Author: Olivier Bertrand -- bertrandop@gmail.com -- 2004-2014 */ +/****************************************************************************/ +#ifdef USE_PRAGMA_IMPLEMENTATION +#pragma implementation // gcc: Class implementation +#endif + +#define DONT_DEFINE_VOID +#define MYSQL_SERVER +#include "sql_class.h" +#undef OFFSET + +#define NOPARSE +#include "osutil.h" +#include "global.h" +#include "plgdbsem.h" +#include "connect.h" +#include "user_connect.h" +#include "mycat.h" + +extern "C" int trace; + +/****************************************************************************/ +/* Initialize the user_connect static member. */ +/****************************************************************************/ +PCONNECT user_connect::to_users= NULL; + +/* -------------------------- class user_connect -------------------------- */ + +/****************************************************************************/ +/* Constructor. */ +/****************************************************************************/ +user_connect::user_connect(THD *thd, const char *dbn) +{ + thdp= thd; + next= NULL; + previous= NULL; + g= NULL; + last_query_id= 0; + count= 0; + + // Statistics + nrd= fnd= nfd= 0; + tb1= 0; +} // end of user_connect constructor + + +/****************************************************************************/ +/* Destructor. */ +/****************************************************************************/ +user_connect::~user_connect() +{ + // Terminate CONNECT and Plug-like environment, should return NULL + g= CntExit(g); +} // end of user_connect destructor + + +/****************************************************************************/ +/* Initialization. */ +/****************************************************************************/ +bool user_connect::user_init() +{ + // Initialize Plug-like environment + PACTIVITY ap= NULL; + PDBUSER dup= NULL; + + // Areasize= 64M because of VEC tables. Should be parameterisable + g= PlugInit(NULL, 67108864); +//g= PlugInit(NULL, 134217728); // 128M was because of old embedded tests + + // Check whether the initialization is complete + if (!g || !g->Sarea || PlugSubSet(g, g->Sarea, g->Sarea_Size) + || !(dup= PlgMakeUser(g))) { + if (g) + printf("%s\n", g->Message); + + int rc= PlugExit(g); + g= NULL; + free(dup); + return true; + } // endif g-> + + dup->Catalog= new MYCAT(NULL); + + ap= new ACTIVITY; + memset(ap, 0, sizeof(ACTIVITY)); + strcpy(ap->Ap_Name, "CONNECT"); + g->Activityp= ap; + g->Activityp->Aptr= dup; + next= to_users; + to_users= this; + + if (next) + next->previous= this; + + last_query_id= thdp->query_id; + count= 1; + return false; +} // end of user_init + + +void user_connect::SetHandler(ha_connect *hc) +{ + PDBUSER dup= (PDBUSER)g->Activityp->Aptr; + MYCAT *mc= (MYCAT*)dup->Catalog; + mc->SetHandler(hc); +} + +/****************************************************************************/ +/* Check whether we begin a new query and if so cleanup the previous one. */ +/****************************************************************************/ +bool user_connect::CheckCleanup(void) +{ + if (thdp->query_id > last_query_id) { + PlugCleanup(g, true); + PlugSubSet(g, g->Sarea, g->Sarea_Size); + g->Xchk = NULL; + g->Createas = 0; + g->Alchecked = 0; + g->Mrr = 0; + last_query_id= thdp->query_id; + + if (trace) + printf("=====> Begin new query %llu\n", last_query_id); + + return true; + } // endif query_id + + return false; +} // end of CheckCleanup + |