SQLite

**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.79 2002/06/14 20:54:15 drh Exp $
** $Id: main.c,v 1.80 2002/06/16 18:21:44 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>

/*
** This is the callback routine for the code that initializes the
** database.  See sqliteInit() below for additional information.
**
** Each callback contains the following information:
**
**     argv[0] = "file-format" or "schema-cookie" or "table" or "index"
**     argv[1] = table or index name or meta statement type.
**     argv[2] = root page number for table or index.  NULL for meta.
**     argv[3] = SQL create statement for the table or index
**
*/
static int sqliteOpenCb(void *pDb, int argc, char **argv, char **azColName){
int sqliteInitCallback(void *pDb, int argc, char **argv, char **azColName){
  sqlite *db = (sqlite*)pDb;
  Parse sParse;
  int nErr = 0;

  /* TODO: Do some validity checks on all fields.  In particular,
  ** make sure fields do not contain NULLs. Otherwise we might core
  ** when attempting to initialize from a corrupt database file. */

  */
  vdbe = sqliteVdbeCreate(db);
  if( vdbe==0 ){
    sqliteSetString(pzErrMsg, "out of memory", 0);
    return SQLITE_NOMEM;
  }
  sqliteVdbeAddOpList(vdbe, sizeof(initProg)/sizeof(initProg[0]), initProg);
  rc = sqliteVdbeExec(vdbe, sqliteOpenCb, db, pzErrMsg, 
  rc = sqliteVdbeExec(vdbe, sqliteInitCallback, db, pzErrMsg, 
                      db->pBusyArg, db->xBusyCallback);
  sqliteVdbeDelete(vdbe);
  if( rc==SQLITE_OK && db->nTable==0 ){
    db->file_format = 2;
  }
  if( rc==SQLITE_OK && db->file_format>2 ){
    sqliteSetString(pzErrMsg, "unsupported file format", 0);

    Table *pTab;
    char *azArg[6];
    azArg[0] = "table";
    azArg[1] = MASTER_NAME;
    azArg[2] = "2";
    azArg[3] = master_schema;
    azArg[4] = 0;
    sqliteOpenCb(db, 4, azArg, 0);
    sqliteInitCallback(db, 4, azArg, 0);
    pTab = sqliteFindTable(db, MASTER_NAME);
    if( pTab ){
      pTab->readOnly = 1;
    }
    db->flags |= SQLITE_Initialized;
    sqliteCommitInternalChanges(db);
  }

/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    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 1.123 2002/06/11 02:25:42 danielk1977 Exp $
** @(#) $Id: sqliteInt.h,v 1.124 2002/06/16 18:21:44 drh Exp $
*/
#include "sqlite.h"
#include "hash.h"
#include "vdbe.h"
#include "parse.h"
#include "btree.h"
#include <stdio.h>

void sqliteViewTriggers(Parse*, Table*, Expr*, int, ExprList*);
TriggerStep *sqliteTriggerSelectStep(Select*);
TriggerStep *sqliteTriggerInsertStep(Token*, IdList*, ExprList*, Select*, int);
TriggerStep *sqliteTriggerUpdateStep(Token*, ExprList*, Expr*, int);
TriggerStep *sqliteTriggerDeleteStep(Token*, Expr*);
void sqliteDeleteTrigger(Trigger*);
int sqliteJoinType(Parse*, Token*, Token*, Token*);
int sqliteInitCallback(void*,int,char**,char**);