SQLite

**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing the printf() interface to SQLite.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test1.c,v 1.150 2005/07/20 14:31:53 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include "os.h"
#include <stdlib.h>
#include <string.h>

     { "tcl_variable_type",       tcl_variable_type, 0       },
  };
  static int bitmask_size = sizeof(Bitmask)*8;
  int i;
  extern int sqlite3_os_trace;
  extern int sqlite3_sync_count, sqlite3_fullsync_count;
  extern int sqlite3_opentemp_count;
  extern int sqlite3_memUsed;
  extern int sqlite3_memMax;
  extern char sqlite3_query_plan[];
  static char *query_plan = sqlite3_query_plan;

  for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
    Tcl_CreateCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);
  }
  for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){

      (char*)&sqlite3_interrupt_count, TCL_LINK_INT);
  Tcl_LinkVar(interp, "sqlite_open_file_count", 
      (char*)&sqlite3_open_file_count, TCL_LINK_INT);
  Tcl_LinkVar(interp, "sqlite_current_time", 
      (char*)&sqlite3_current_time, TCL_LINK_INT);
  Tcl_LinkVar(interp, "sqlite_os_trace",
      (char*)&sqlite3_os_trace, TCL_LINK_INT);
  Tcl_LinkVar(interp, "sqlite_memused",
      (char*)&sqlite3_memUsed, TCL_LINK_INT | TCL_LINK_READ_ONLY);
  Tcl_LinkVar(interp, "sqlite_memmax",
      (char*)&sqlite3_memMax, TCL_LINK_INT | TCL_LINK_READ_ONLY);
  Tcl_LinkVar(interp, "sqlite_query_plan",
      (char*)&query_plan, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
#ifndef SQLITE_OMIT_DISKIO
  Tcl_LinkVar(interp, "sqlite_opentemp_count",
      (char*)&sqlite3_opentemp_count, TCL_LINK_INT);
#endif
  Tcl_LinkVar(interp, "sqlite_static_bind_value",

**
*************************************************************************
** Utility functions used throughout sqlite.
**
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.141 2005/07/20 14:31:53 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
#include <ctype.h>

#if SQLITE_MEMDEBUG>2 && defined(__GLIBC__)
#include <execinfo.h>

** is used to check for memory leaks.  The iMallocFail and iMallocReset
** values are used to simulate malloc() failures during testing in 
** order to verify that the library correctly handles an out-of-memory
** condition.
*/
int sqlite3_nMalloc;         /* Number of sqliteMalloc() calls */
int sqlite3_nFree;           /* Number of sqliteFree() calls */
int sqlite3_memUsed;         /* Total memory obtained from malloc */
int sqlite3_memMax;          /* Mem usage high-water mark */
int sqlite3_iMallocFail;     /* Fail sqliteMalloc() after this many calls */
int sqlite3_iMallocReset = -1; /* When iMallocFail reaches 0, set to this */
#if SQLITE_MEMDEBUG>1
static int memcnt = 0;
#endif

/*

              n, zFile,line);
#endif
      sqlite3_iMallocFail = sqlite3_iMallocReset;
      return 0;
    }
  }
  if( n==0 ) return 0;
  sqlite3_memUsed += n;
  if( sqlite3_memMax<sqlite3_memUsed ) sqlite3_memMax = sqlite3_memUsed;
  k = (n+sizeof(int)-1)/sizeof(int);
  pi = malloc( (N_GUARD*2+1+k)*sizeof(int));
  if( pi==0 ){
    if( n>0 ) sqlite3_malloc_failed++;
    return 0;
  }
  sqlite3_nMalloc++;

    for(i=0; i<N_GUARD; i++){
      if( pi[i]!=0xdead1122 ){
        fprintf(stderr,"Low-end memory corruption at 0x%x\n", (int)p);
        return;
      }
    }
    n = pi[N_GUARD];
    sqlite3_memUsed -= n;
    k = (n+sizeof(int)-1)/sizeof(int);
    for(i=0; i<N_GUARD; i++){
      if( pi[k+N_GUARD+1+i]!=0xdead3344 ){
        fprintf(stderr,"High-end memory corruption at 0x%x\n", (int)p);
        return;
      }
    }

  oldPi = oldP;
  oldPi -= N_GUARD+1;
  if( oldPi[0]!=0xdead1122 ){
    fprintf(stderr,"Low-end memory corruption in realloc at 0x%x\n", (int)oldP);
    return 0;
  }
  oldN = oldPi[N_GUARD];
  sqlite3_memUsed -= oldN;
  oldK = (oldN+sizeof(int)-1)/sizeof(int);
  for(i=0; i<N_GUARD; i++){
    if( oldPi[oldK+N_GUARD+1+i]!=0xdead3344 ){
      fprintf(stderr,"High-end memory corruption in realloc at 0x%x\n",
              (int)oldP);
      return 0;
    }
  }
  k = (n + sizeof(int) - 1)/sizeof(int);
  pi = malloc( (k+N_GUARD*2+1)*sizeof(int) );
  if( pi==0 ){
    if( n>0 ) sqlite3_malloc_failed++;
    return 0;
  }
  for(i=0; i<N_GUARD; i++) pi[i] = 0xdead1122;
  pi[N_GUARD] = n;
  sqlite3_memUsed += n;
  if( sqlite3_memMax<sqlite3_memUsed ) sqlite3_memMax = sqlite3_memUsed;
  for(i=0; i<N_GUARD; i++) pi[k+N_GUARD+1+i] = 0xdead3344;
  p = &pi[N_GUARD+1];
  memcpy(p, oldP, n>oldN ? oldN : n);
  if( n>oldN ){
    memset(&((char*)p)[oldN], 0x55, n-oldN);
  }
  memset(oldPi, 0xab, (oldK+N_GUARD+2)*sizeof(int));