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Overview
| Comment: | Add code to invoke the xDestroy method of a virtual table when it is dropped. (CVS 3218) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | f0c7c8d12c04376e48c6d53a29cfae3f |
| User & Date: | danielk1977 2006-06-12 16:01:22 |
Context
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2006-06-12
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| 21:59 | Added code to iterate through virtual tables. All regression tests pass but the new code is completely untested. (CVS 3219) check-in: 01096543 user: drh tags: trunk | |
| 16:01 | Add code to invoke the xDestroy method of a virtual table when it is dropped. (CVS 3218) check-in: f0c7c8d1 user: danielk1977 tags: trunk | |
| 12:57 | Patches to get things working better for OS2. Ticket #1836. (CVS 3217) check-in: 65c6e5e1 user: drh tags: trunk | |
Changes
Changes to src/build.c.
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** CREATE INDEX ** DROP INDEX ** creating ID lists ** BEGIN TRANSACTION ** COMMIT ** ROLLBACK ** ** $Id: build.c,v 1.398 2006/06/12 12:08:45 danielk1977 Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** This routine is called when a new SQL statement is beginning to ** be parsed. Initialize the pParse structure as needed. ................................................................................ destroyTable(pParse, pTab); } /* Remove the table entry from SQLite's internal schema and modify ** the schema cookie. */ #ifndef SQLITE_OMIT_VIRTUALTABLE if( pTab->isEphem ){ sqlite3VdbeOp3(v, OP_VDestroy, iDb, 0, pTab->zName, 0); }else #endif { sqlite3VdbeOp3(v, OP_DropTable, iDb, 0, pTab->zName, 0); } sqlite3ChangeCookie(db, v, iDb); } sqliteViewResetAll(db, iDb); exit_drop_table: sqlite3SrcListDelete(pName); } |
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** CREATE INDEX ** DROP INDEX ** creating ID lists ** BEGIN TRANSACTION ** COMMIT ** ROLLBACK ** ** $Id: build.c,v 1.399 2006/06/12 16:01:22 danielk1977 Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** This routine is called when a new SQL statement is beginning to ** be parsed. Initialize the pParse structure as needed. ................................................................................ destroyTable(pParse, pTab); } /* Remove the table entry from SQLite's internal schema and modify ** the schema cookie. */ #ifndef SQLITE_OMIT_VIRTUALTABLE if( pTab->isVirtual ){ sqlite3VdbeOp3(v, OP_VDestroy, iDb, 0, pTab->zName, 0); } #endif sqlite3VdbeOp3(v, OP_DropTable, iDb, 0, pTab->zName, 0); sqlite3ChangeCookie(db, v, iDb); } sqliteViewResetAll(db, iDb); exit_drop_table: sqlite3SrcListDelete(pName); } |
Changes to src/sqliteInt.h.
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** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** Internal interface definitions for SQLite. ** ** @(#) $Id: sqliteInt.h,v 1.500 2006/06/12 12:08:45 danielk1977 Exp $ */ #ifndef _SQLITEINT_H_ #define _SQLITEINT_H_ /* ** Extra interface definitions for those who need them */ ................................................................................ #endif void sqlite3VtabBeginParse(Parse*, Token*, Token*, Token*); void sqlite3VtabFinishParse(Parse*, Token*); void sqlite3VtabArgInit(Parse*); void sqlite3VtabArgExtend(Parse*, Token*); int sqlite3VtabCallCreate(sqlite3*, int, const char *, char **); int sqlite3VtabCallConnect(Parse*, Table*); #ifdef SQLITE_SSE #include "sseInt.h" #endif #endif |
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** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** Internal interface definitions for SQLite. ** ** @(#) $Id: sqliteInt.h,v 1.501 2006/06/12 16:01:22 danielk1977 Exp $ */ #ifndef _SQLITEINT_H_ #define _SQLITEINT_H_ /* ** Extra interface definitions for those who need them */ ................................................................................ #endif void sqlite3VtabBeginParse(Parse*, Token*, Token*, Token*); void sqlite3VtabFinishParse(Parse*, Token*); void sqlite3VtabArgInit(Parse*); void sqlite3VtabArgExtend(Parse*, Token*); int sqlite3VtabCallCreate(sqlite3*, int, const char *, char **); int sqlite3VtabCallConnect(Parse*, Table*); int sqlite3VtabCallDestroy(sqlite3*, int, const char *); #ifdef SQLITE_SSE #include "sseInt.h" #endif #endif |
Changes to src/vdbe.c.
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.552 2006/06/12 06:09:19 danielk1977 Exp $ */ #include "sqliteInt.h" #include "os.h" #include <ctype.h> #include "vdbeInt.h" /* ................................................................................ case OP_VCreate: { rc = sqlite3VtabCallCreate(db, pOp->p1, pOp->p3, &p->zErrMsg); break; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ #ifndef SQLITE_OMIT_VIRTUALTABLE /* Opcode: VDestroy * * P3 ** ** P3 is the name of a virtual table. Call the xDestroy method for ** that table. */ case OP_VDestroy: { break; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ /* An other opcode is illegal... */ default: { |
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.553 2006/06/12 16:01:22 danielk1977 Exp $ */ #include "sqliteInt.h" #include "os.h" #include <ctype.h> #include "vdbeInt.h" /* ................................................................................ case OP_VCreate: { rc = sqlite3VtabCallCreate(db, pOp->p1, pOp->p3, &p->zErrMsg); break; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ #ifndef SQLITE_OMIT_VIRTUALTABLE /* Opcode: VDestroy P1 * P3 ** ** P3 is the name of a virtual table in database P1. Call the xDestroy method ** of that table. */ case OP_VDestroy: { rc = sqlite3VtabCallDestroy(db, pOp->p1, pOp->p3); break; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ /* An other opcode is illegal... */ default: { |
Changes to src/vtab.c.
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** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains code used to help implement virtual tables. ** ** $Id: vtab.c,v 1.4 2006/06/12 12:08:45 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_VIRTUALTABLE #include "sqliteInt.h" /* ** External API function used to create a new virtual-table module. */ ................................................................................ rc = sqlite3SafetyOn(db); } } if( SQLITE_OK==rc ){ pTab->needCreate = 0; } return rc; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ |
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** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains code used to help implement virtual tables. ** ** $Id: vtab.c,v 1.5 2006/06/12 16:01:22 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_VIRTUALTABLE #include "sqliteInt.h" /* ** External API function used to create a new virtual-table module. */ ................................................................................ rc = sqlite3SafetyOn(db); } } if( SQLITE_OK==rc ){ pTab->needCreate = 0; } return rc; } /* ** This function is invoked by the vdbe to call the xDestroy method ** of the virtual table named zTab in database iDb. This occurs ** when a DROP TABLE is mentioned. ** ** This call is a no-op if zTab is not a virtual table. */ int sqlite3VtabCallDestroy(sqlite3 *db, int iDb, const char *zTab) { int rc = SQLITE_OK; Table *pTab; sqlite3_module *pModule; pTab = sqlite3FindTable(db, zTab, db->aDb[iDb].zName); pModule = pTab->pModule; assert(pTab); if( pTab->pVtab ){ rc = sqlite3SafetyOff(db); assert( rc==SQLITE_OK ); rc = pModule->xDestroy(pTab->pVtab); sqlite3SafetyOn(db); if( rc==SQLITE_OK ){ pTab->pVtab = 0; } } return rc; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ |
Changes to test/vtab1.test.
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is creating and dropping virtual tables. # # $Id: vtab1.test,v 1.5 2006/06/12 12:50:23 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl ifcapable !vtab { finish_test return ................................................................................ register_echo_module [sqlite3_connection_pointer db] execsql { PRAGMA table_info(t2); } } [list \ 0 a {} 0 {} 0 \ 1 b {} 0 {} 0 \ 2 c {} 0 {} 0 \ ] finish_test |
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is creating and dropping virtual tables. # # $Id: vtab1.test,v 1.6 2006/06/12 16:01:23 danielk1977 Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl ifcapable !vtab { finish_test return ................................................................................ register_echo_module [sqlite3_connection_pointer db] execsql { PRAGMA table_info(t2); } } [list \ 0 a {} 0 {} 0 \ 1 b {} 0 {} 0 \ 2 c {} 0 {} 0 \ ] # Drop the table t2. This should cause the xDestroy (but not xDisconnect) # method to be invoked. do_test vtab1-2.5 { set echo_module [list] execsql { DROP TABLE t2; } set echo_module } [list xDestroy] do_test vtab1-2.6 { execsql { PRAGMA table_info(t2); } } {} do_test vtab1-2.7 { execsql { SELECT sql FROM sqlite_master; } } [list {CREATE VIRTUAL TABLE t1 USING echo} \ {CREATE TABLE template(a, b, c)} \ ] finish_test |