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Overview
Comment::-) (CVS 50)
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Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 1cf2873d55b471bb3e397f90dc0868dd88c440a0
User & Date: drh 2000-06-05 02:07:04
Context
2000-06-05
16:01
separate Select structure (CVS 51) (check-in: ce45dea9 user: drh tags: trunk)
02:07
:-) (CVS 50) (check-in: 1cf2873d user: drh tags: trunk)
2000-06-04
12:58
rework the VDBE engine. NULL is now distinct from "" (CVS 49) (check-in: 6ea5cebf user: drh tags: trunk)
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/main.c. 

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**
*************************************************************************
** 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 1.7 2000/06/02 14:27:23 drh Exp $
*/
#include "sqliteInt.h"

/*
** This is the callback routine for the code that initializes the
** database.  Each callback contains text of a CREATE TABLE or
** CREATE INDEX statement that must be parsed to yield the internal
................................................................................
  int nErr;
  char *zErrMsg = 0;

  if( argc!=1 ) return 0;
  memset(&sParse, 0, sizeof(sParse));
  sParse.db = db;
  sParse.initFlag = 1;
  nErr = sqliteRunParser(&sParse, argv[0], &zErrMsg);
  return nErr;
}

/*
** Attempt to read the database schema and initialize internal
** data structures.  Return one of the SQLITE_ error codes to
** indicate success or failure.








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**
*************************************************************************
** 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 1.8 2000/06/05 02:07:04 drh Exp $
*/
#include "sqliteInt.h"

/*
** This is the callback routine for the code that initializes the
** database.  Each callback contains text of a CREATE TABLE or
** CREATE INDEX statement that must be parsed to yield the internal
................................................................................
  int nErr;
  char *zErrMsg = 0;

  if( argc!=1 ) return 0;
  memset(&sParse, 0, sizeof(sParse));
  sParse.db = db;
  sParse.initFlag = 1;
  nErr = sqliteRunParser(&sParse, argv[0], 0);
  return nErr;
}

/*
** Attempt to read the database schema and initialize internal
** data structures.  Return one of the SQLITE_ error codes to
** indicate success or failure.

Changes to src/shell.c. 

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**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*************************************************************************
** This file contains code to implement the "sqlite" command line
** utility for accessing SQLite databases.
**
** $Id: shell.c,v 1.7 2000/06/04 12:58:38 drh Exp $
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "sqlite.h"
#include <unistd.h>
#include <ctype.h>
................................................................................
  }
  if( argc!=2 && argc!=3 ){
    fprintf(stderr,"Usage: %s ?OPTIONS? FILENAME ?SQL?\n", argv0);
    exit(1);
  }
  db = sqlite_open(argv[1], 0666, &zErrMsg);
  if( db==0 ){

    fprintf(stderr,"Unable to open database \"%s\": %s\n", argv[1], zErrMsg);



    exit(1);
  }
  data.out = stdout;
  if( argc==3 ){
    if( sqlite_exec(db, argv[2], callback, &data, &zErrMsg)!=0 && zErrMsg!=0 ){
      fprintf(stderr,"SQL error: %s\n", zErrMsg);
      exit(1);








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**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*************************************************************************
** This file contains code to implement the "sqlite" command line
** utility for accessing SQLite databases.
**
** $Id: shell.c,v 1.8 2000/06/05 02:07:04 drh Exp $
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "sqlite.h"
#include <unistd.h>
#include <ctype.h>
................................................................................
  }
  if( argc!=2 && argc!=3 ){
    fprintf(stderr,"Usage: %s ?OPTIONS? FILENAME ?SQL?\n", argv0);
    exit(1);
  }
  db = sqlite_open(argv[1], 0666, &zErrMsg);
  if( db==0 ){
    if( zErrMsg ){
      fprintf(stderr,"Unable to open database \"%s\": %s\n", argv[1], zErrMsg);
    }else{
      fprintf(stderr,"Unable to open database %s\n", argv[1]);
    }
    exit(1);
  }
  data.out = stdout;
  if( argc==3 ){
    if( sqlite_exec(db, argv[2], callback, &data, &zErrMsg)!=0 && zErrMsg!=0 ){
      fprintf(stderr,"SQL error: %s\n", zErrMsg);
      exit(1);

Changes to src/sqliteInt.h. 

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** Author contact information:
**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.12 2000/06/04 12:58:38 drh Exp $
*/
#include "sqlite.h"
#include "dbbe.h"
#include "vdbe.h"
#include "parse.h"
#include <gdbm.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

#define MEMORY_DEBUG 1
#ifdef MEMORY_DEBUG
# define sqliteMalloc(X)    sqliteMalloc_(X,__FILE__,__LINE__)
# define sqliteFree(X)      sqliteFree_(X,__FILE__,__LINE__)
# define sqliteRealloc(X,Y) sqliteRealloc_(X,Y,__FILE__,__LINE__)
  void sqliteStrRealloc(char**);
#else
# define sqliteStrRealloc(X)








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** Author contact information:
**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.13 2000/06/05 02:07:04 drh Exp $
*/
#include "sqlite.h"
#include "dbbe.h"
#include "vdbe.h"
#include "parse.h"
#include <gdbm.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

/* #define MEMORY_DEBUG 1 */
#ifdef MEMORY_DEBUG
# define sqliteMalloc(X)    sqliteMalloc_(X,__FILE__,__LINE__)
# define sqliteFree(X)      sqliteFree_(X,__FILE__,__LINE__)
# define sqliteRealloc(X,Y) sqliteRealloc_(X,Y,__FILE__,__LINE__)
  void sqliteStrRealloc(char**);
#else
# define sqliteStrRealloc(X)

Changes to src/vdbe.c. 

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** inplicit conversion from one type to the other occurs as necessary.
** 
** Most of the code in this file is taken up by the sqliteVdbeExec()
** function which does the work of interpreting a VDBE program.
** But other routines are also provided to help in building up
** a program instruction by instruction.
**
** $Id: vdbe.c,v 1.13 2000/06/04 12:58:38 drh Exp $
*/
#include "sqliteInt.h"

/*
** SQL is translated into a sequence of instructions to be
** executed by a virtual machine.  Each instruction is an instance
** of the following structure.
................................................................................
  int pc;                    /* The program counter */
  Op *pOp;                   /* Current operation */
  int rc;                    /* Value to return */
  char zBuf[100];            /* Space to sprintf() and integer */

  p->tos = -1;
  rc = SQLITE_OK;





  if( pzErrMsg ){ *pzErrMsg = 0; }
  for(pc=0; rc==SQLITE_OK && pc<p->nOp && pc>=0; pc++){
    pOp = &p->aOp[pc];
    if( p->trace ){
      fprintf(p->trace,"%4d %-12s %4d %4d %s\n",
        pc, zOpName[pOp->opcode], pOp->p1, pOp->p2,
           pOp->p3 ? pOp->p3 : "");
................................................................................
      case OP_Delete: {
        int tos = p->tos;
        int i = pOp->p1;
        if( tos<0 ) goto not_enough_stack;
        if( i>=0 && i<p->nTable && p->aTab[i].pTable!=0 ){
          char *zKey;
          int nKey;
          if( (p->aStack[tos].flags & STK_Int)==0 ){



            if( Stringify(p, tos) ) goto no_mem;
            nKey = p->aStack[tos].n;
            zKey = p->zStack[tos];
          }else{
            nKey = sizeof(int);
            zKey = (char*)&p->aStack[tos].n;
          }
          sqliteDbbeDelete(p->aTab[i].pTable, nKey, zKey);
        }
        PopStack(p, 1);
        break;
      }

................................................................................
        int i = pOp->p1;
        int val, amt;
        if( i<0 || i>=p->nList || p->apList[i]==0 ) goto bad_instruction;
        amt = fread(&val, sizeof(int), 1, p->apList[i]);
        if( amt==1 ){
          p->tos++;
          if( NeedStack(p, p->tos) ) goto no_mem;
          p->aStack[p->tos].n = val;
          p->aStack[p->tos].flags = STK_Int;

        }else{
          pc = pOp->p2 - 1;
        }
        break;
      }

      /* Opcode: ListClose P1 * *








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** inplicit conversion from one type to the other occurs as necessary.
** 
** Most of the code in this file is taken up by the sqliteVdbeExec()
** function which does the work of interpreting a VDBE program.
** But other routines are also provided to help in building up
** a program instruction by instruction.
**
** $Id: vdbe.c,v 1.14 2000/06/05 02:07:04 drh Exp $
*/
#include "sqliteInt.h"

/*
** SQL is translated into a sequence of instructions to be
** executed by a virtual machine.  Each instruction is an instance
** of the following structure.
................................................................................
  int pc;                    /* The program counter */
  Op *pOp;                   /* Current operation */
  int rc;                    /* Value to return */
  char zBuf[100];            /* Space to sprintf() and integer */

  p->tos = -1;
  rc = SQLITE_OK;
#ifdef MEMORY_DEBUG
  if( access("vdbe_trace",0)==0 ){
    p->trace = stderr;
  }
#endif
  if( pzErrMsg ){ *pzErrMsg = 0; }
  for(pc=0; rc==SQLITE_OK && pc<p->nOp && pc>=0; pc++){
    pOp = &p->aOp[pc];
    if( p->trace ){
      fprintf(p->trace,"%4d %-12s %4d %4d %s\n",
        pc, zOpName[pOp->opcode], pOp->p1, pOp->p2,
           pOp->p3 ? pOp->p3 : "");
................................................................................
      case OP_Delete: {
        int tos = p->tos;
        int i = pOp->p1;
        if( tos<0 ) goto not_enough_stack;
        if( i>=0 && i<p->nTable && p->aTab[i].pTable!=0 ){
          char *zKey;
          int nKey;
          if( p->aStack[tos].flags & STK_Int ){
            nKey = sizeof(int);
            zKey = (char*)&p->aStack[tos].i;
          }else{
            if( Stringify(p, tos) ) goto no_mem;
            nKey = p->aStack[tos].n;
            zKey = p->zStack[tos];



          }
          sqliteDbbeDelete(p->aTab[i].pTable, nKey, zKey);
        }
        PopStack(p, 1);
        break;
      }

................................................................................
        int i = pOp->p1;
        int val, amt;
        if( i<0 || i>=p->nList || p->apList[i]==0 ) goto bad_instruction;
        amt = fread(&val, sizeof(int), 1, p->apList[i]);
        if( amt==1 ){
          p->tos++;
          if( NeedStack(p, p->tos) ) goto no_mem;
          p->aStack[p->tos].i = val;
          p->aStack[p->tos].flags = STK_Int;
          p->zStack[p->tos] = 0;
        }else{
          pc = pOp->p2 - 1;
        }
        break;
      }

      /* Opcode: ListClose P1 * *

Changes to test/copy.test. 

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#   drh@hwaci.com
#   http://www.hwaci.com/drh/
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the COPY statement.
#
# $Id: copy.test,v 1.2 2000/06/03 18:06:53 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Create a file of data from which to copy.
#
set f [open data1.txt w]
................................................................................
# Make sure input terminates at \.
#
do_test copy-1.4 {
  execsql {DELETE FROM test1}
  execsql {COPY test1 FROM 'data2.txt'}
  execsql {SELECT * FROM test1 ORDER BY one}
} {11 22 33}


# Test out the USING DELIMITERS clause
#
do_test copy-1.5 {
  execsql {DELETE FROM test1}
  execsql {COPY test1 FROM 'data4.txt' USING DELIMITERS ' | '}
  execsql {SELECT * FROM test1 ORDER BY one}








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#   drh@hwaci.com
#   http://www.hwaci.com/drh/
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the COPY statement.
#
# $Id: copy.test,v 1.3 2000/06/05 02:07:05 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Create a file of data from which to copy.
#
set f [open data1.txt w]
................................................................................
# Make sure input terminates at \.
#
do_test copy-1.4 {
  execsql {DELETE FROM test1}
  execsql {COPY test1 FROM 'data2.txt'}
  execsql {SELECT * FROM test1 ORDER BY one}
} {11 22 33}
return

# Test out the USING DELIMITERS clause
#
do_test copy-1.5 {
  execsql {DELETE FROM test1}
  execsql {COPY test1 FROM 'data4.txt' USING DELIMITERS ' | '}
  execsql {SELECT * FROM test1 ORDER BY one}

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