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 1.416 2008/01/31 14:43:24 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#ifdef SQLITE_ENABLE_FTS3
# include "fts3.h"
#endif

      }
      sqlite3BtreeLeave(pBtree);
    }
  }
  sqlite3_mutex_leave(db->mutex);
  return rc;   
}

/*
** Interface to the testing logic.
*/
int sqlite3_test_control(int op, ...){
  va_list ap;
  int rc = 0;
  va_start(ap, op);
  switch( op ){
#ifndef SQLITE_OMIT_FAULTINJECTOR
    case SQLITE_TESTCTRL_FAULT_CONFIG: {
      int id = va_arg(ap, int);
      int nDelay = va_arg(ap, int);
      int nRepeat = va_arg(ap, int);
      sqlite3FaultConfig(id, nDelay, nRepeat);
      break;
    }
    case SQLITE_TESTCTRL_FAULT_FAILURES: {
      int id = va_arg(ap, int);
      rc = sqlite3FaultFailures(id);
      break;
    }
    case SQLITE_TESTCTRL_FAULT_BENIGN_FAILURES: {
      int id = va_arg(ap, int);
      rc = sqlite3FaultBenignFailures(id);
      break;
    }
    case SQLITE_TESTCTRL_FAULT_PENDING: {
      int id = va_arg(ap, int);
      rc = sqlite3FaultPending(id);
      break;
    }
#endif /* SQLITE_OMIT_FAULTINJECTOR */
  }
  va_end(ap);
}

** on how SQLite interfaces are suppose to operate.
**
** The name of this file under configuration management is "sqlite.h.in".
** The makefile makes some minor changes to this file (such as inserting
** the version number) and changes its name to "sqlite3.h" as
** part of the build process.
**
** @(#) $Id: sqlite.h.in,v 1.281 2008/01/31 14:43:24 drh Exp $
*/
#ifndef _SQLITE3_H_
#define _SQLITE3_H_
#include <stdarg.h>     /* Needed for the definition of va_list */

/*
** Make sure we can call this stuff from C++.

** also return SQLITE_ERROR.  {U11309} There is no way to distinguish between
** an incorrect zDbName and an SQLITE_ERROR return from the underlying
** xFileControl method. {END}
**
** See also: [SQLITE_FCNTL_LOCKSTATE]
*/
int sqlite3_file_control(sqlite3*, const char *zDbName, int op, void*);

/*
** CAPI3REF: Testing Interface {F11400}
**
** The sqlite3_test_control() interface is used to read out internal
** state of SQLite and to inject faults into SQLite for testing
** purposes.  The first parameter a operation code that determines
** the number, meaning, and operation of all subsequent parameters.
**
** This interface is not for use by applications.  It exists solely
** for verifying the correct operation of the SQLite library.  Depending
** on how the SQLite library is compiled, this interface might not exist.
**
** The details of the operation codes, their meanings, the parameters
** they take, and what they do are all subject to change without notice.
** Unlike most of the SQLite API, this function is not guaranteed to
** operate consistently from one release to the next.
*/
int sqlite3_test_control(int op, ...);

/*
** CAPI3REF: Testing Interface Operation Codes {F11410}
**
** These constants are the valid operation code parameters used
** as the first argument to [sqlite3_test_control()].
**
** These parameters and their meansing are subject to change
** without notice.  These values are for testing purposes only.
** Applications should not use any of these parameters or the
** [sqlite3_test_control()] interface.
*/
#define SQLITE_TESTCTRL_FAULT_CONFIG             1
#define SQLITE_TESTCTRL_FAULT_FAILURES           2
#define SQLITE_TESTCTRL_FAULT_BENIGN_FAILURES    3
#define SQLITE_TESTCTRL_FAULT_PENDING            4





/*
** Undo the hack that converts floating point types to integer for
** builds on processors without floating point support.
*/
#ifdef SQLITE_OMIT_FLOATING_POINT
# undef double
#endif

#ifdef __cplusplus
}  /* End of the 'extern "C"' block */
#endif
#endif

**    May you share freely, never taking more than you give.
**
*************************************************************************
**
** This file contains code used to implement test interfaces to the
** memory allocation subsystem.
**
** $Id: test_malloc.c,v 1.11 2008/01/31 14:43:24 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>

    if( zErr ){
      Tcl_AppendResult(interp, zErr, zOption, 0);
      return TCL_ERROR;
    }
  }
  
  nBenign = sqlite3_test_control(SQLITE_TESTCTRL_FAULT_BENIGN_FAILURES,
                                 SQLITE_FAULTINJECTOR_MALLOC);
  nFail = sqlite3_test_control(SQLITE_TESTCTRL_FAULT_FAILURES,
                               SQLITE_FAULTINJECTOR_MALLOC);
  sqlite3_test_control(SQLITE_TESTCTRL_FAULT_CONFIG,
                       SQLITE_FAULTINJECTOR_MALLOC, iFail, nRepeat);
  if( pBenignCnt ){
    Tcl_ObjSetVar2(interp, pBenignCnt, 0, Tcl_NewIntObj(nBenign), 0);
  }
  Tcl_SetObjResult(interp, Tcl_NewIntObj(nFail));
  return TCL_OK;
}

  if( objc!=1 ){
    Tcl_WrongNumArgs(interp, 1, objv, "");
    return TCL_ERROR;
  }

#ifdef SQLITE_MEMDEBUG
  {
    int nPending = sqlite3_test_control(SQLITE_TESTCTRL_FAULT_PENDING,
                                        SQLITE_FAULTINJECTOR_MALLOC);
    Tcl_SetObjResult(interp, Tcl_NewIntObj(nPending));


  }
#endif
  return TCL_OK;
}


/*