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Overview
Comment:Test infrastructure for the new memory subsystem. (CVS 4229)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 9e506656720fb3a3205b8cc398152272ce56f6f3
User & Date: drh 2007-08-15 19:16:43
Context
2007-08-15
20:41
Enhancements and smoke testing of the new memory allocation subsystem. Have not yet cut it over to the core, though. (CVS 4230) (check-in: 1dad2c0a user: drh tags: trunk)
19:16
Test infrastructure for the new memory subsystem. (CVS 4229) (check-in: 9e506656 user: drh tags: trunk)
17:08
Modify the crash-recovery test code in test6.c for 3.5. Also change some other code to use the new sqlite3_io_methods interface. Lots of things are broken now. (CVS 4228) (check-in: af9503da user: danielk1977 tags: trunk)
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to main.mk. 

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  $(TOP)/src/test8.c \
  $(TOP)/src/test9.c \
  $(TOP)/src/test_autoext.c \
  $(TOP)/src/test_async.c \
  $(TOP)/src/test_btree.c \
  $(TOP)/src/test_config.c \
  $(TOP)/src/test_hexio.c \

  $(TOP)/src/test_md5.c \
  $(TOP)/src/test_schema.c \
  $(TOP)/src/test_server.c \
  $(TOP)/src/test_tclvar.c \
  $(TOP)/src/utf.c \
  $(TOP)/src/util.c \
  $(TOP)/src/vdbe.c \








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  $(TOP)/src/test8.c \
  $(TOP)/src/test9.c \
  $(TOP)/src/test_autoext.c \
  $(TOP)/src/test_async.c \
  $(TOP)/src/test_btree.c \
  $(TOP)/src/test_config.c \
  $(TOP)/src/test_hexio.c \
  $(TOP)/src/test_malloc.c \
  $(TOP)/src/test_md5.c \
  $(TOP)/src/test_schema.c \
  $(TOP)/src/test_server.c \
  $(TOP)/src/test_tclvar.c \
  $(TOP)/src/utf.c \
  $(TOP)/src/util.c \
  $(TOP)/src/vdbe.c \

Changes to src/mem2.c. 

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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 contains the C functions that implement a memory
** allocation subsystem for use by SQLite.  
**
** $Id: mem2.c,v 1.1 2007/08/15 17:07:57 drh Exp $
*/

/*
** This version of the memory allocator is used only if the
** SQLITE_MEMDEBUG macro is defined and SQLITE_OMIT_MEMORY_ALLOCATION
** is not defined.
*/
................................................................................
    }else{
      pFirst = pHdr;
    }
    pLast = pHdr;
    pHdr->iForeGuard = FOREGUARD;
    pHdr->nBacktraceSlots = backtraceLevels;
    if( backtraceLevels ){

      pHdr->nBacktrace = backtrace(pBt, backtraceLevels);

    }else{
      pHdr->nBacktrace = 0;
    }
    pHdr->iSize = nByte;
    pInt = (unsigned int *)&pHdr[1];
    pInt[nByte/sizeof(unsigned int)] = REARGUARD;
    memset(pInt, 0x65, nByte);
................................................................................
** higher level code is using pointer to the old allocation, it is 
** much more likely to break and we are much more liking to find
** the error.
*/
void *sqlite3_realloc(void *pPrior, unsigned int nByte){
  struct MemBlockHdr *pOldHdr;
  void *pNew;
  unsigned nOld;
  if( pPrior==0 ){
    return sqlite3_malloc(nByte);
  }
  if( nByte==0 ){
    sqlite3_free(pPrior);
    return;
  }
  pOldHdr = sqlite3MemsysGetHeader(pPrior);
  pNew = sqlite3_malloc(nByte);
  if( pNew ){
    memcpy(pNew, pPrior, nByte<pOldHdr->iSize ? nByte : pOldHdr->iSize);
    if( nByte>pOldHdr->iSize ){
      memset(&((char*)pNew)[pOldHdr->iSize], 0x2b, nByte - pOldHdr->iSize);
................................................................................
}

/*
** Set the number of backtrace levels kept for each allocation.
** A value of zero turns of backtracing.  The number is always rounded
** up to a multiple of 2.
*/
void sqlite3_memdebug_backtrace_depth(int depth){
  if( depth<0 ){ depth = 0; }
  if( depth>20 ){ depth = 20; }
  depth = (depth+1)&~1;
  backtraceLevels = depth;
}

/*
** Open the file indicated and write a log of all unfreed memory 
** allocations into that log.
*/








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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 contains the C functions that implement a memory
** allocation subsystem for use by SQLite.  
**
** $Id: mem2.c,v 1.2 2007/08/15 19:16:43 drh Exp $
*/

/*
** This version of the memory allocator is used only if the
** SQLITE_MEMDEBUG macro is defined and SQLITE_OMIT_MEMORY_ALLOCATION
** is not defined.
*/
................................................................................
    }else{
      pFirst = pHdr;
    }
    pLast = pHdr;
    pHdr->iForeGuard = FOREGUARD;
    pHdr->nBacktraceSlots = backtraceLevels;
    if( backtraceLevels ){
      void *aAddr[40];
      pHdr->nBacktrace = backtrace(aAddr, backtraceLevels+1)-1;
      memcpy(pBt, &aAddr[1], pHdr->nBacktrace*sizeof(void*));
    }else{
      pHdr->nBacktrace = 0;
    }
    pHdr->iSize = nByte;
    pInt = (unsigned int *)&pHdr[1];
    pInt[nByte/sizeof(unsigned int)] = REARGUARD;
    memset(pInt, 0x65, nByte);
................................................................................
** higher level code is using pointer to the old allocation, it is 
** much more likely to break and we are much more liking to find
** the error.
*/
void *sqlite3_realloc(void *pPrior, unsigned int nByte){
  struct MemBlockHdr *pOldHdr;
  void *pNew;

  if( pPrior==0 ){
    return sqlite3_malloc(nByte);
  }
  if( nByte==0 ){
    sqlite3_free(pPrior);
    return 0;
  }
  pOldHdr = sqlite3MemsysGetHeader(pPrior);
  pNew = sqlite3_malloc(nByte);
  if( pNew ){
    memcpy(pNew, pPrior, nByte<pOldHdr->iSize ? nByte : pOldHdr->iSize);
    if( nByte>pOldHdr->iSize ){
      memset(&((char*)pNew)[pOldHdr->iSize], 0x2b, nByte - pOldHdr->iSize);
................................................................................
}

/*
** Set the number of backtrace levels kept for each allocation.
** A value of zero turns of backtracing.  The number is always rounded
** up to a multiple of 2.
*/
void sqlite3_memdebug_backtrace(int depth){
  if( depth<0 ){ depth = 0; }
  if( depth>20 ){ depth = 20; }
  depth = (depth+1)&0xfe;
  backtraceLevels = depth;
}

/*
** Open the file indicated and write a log of all unfreed memory 
** allocations into that log.
*/

Changes to src/tclsqlite.c. 

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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** A TCL Interface to SQLite.  Append this file to sqlite3.c and
** compile the whole thing to build a TCL-enabled version of SQLite.
**
** $Id: tclsqlite.c,v 1.194 2007/08/07 17:13:04 drh Exp $
*/
#include "tcl.h"
#include <errno.h>

/*
** Some additional include files are needed if this file is not
** appended to the amalgamation.
................................................................................
int TCLSH_MAIN(int argc, char **argv){
  Tcl_Interp *interp;
  Tcl_FindExecutable(argv[0]);
  interp = Tcl_CreateInterp();
  Sqlite3_Init(interp);
#ifdef SQLITE_TEST
  {


    extern int Sqlitetest1_Init(Tcl_Interp*);
    extern int Sqlitetest2_Init(Tcl_Interp*);
    extern int Sqlitetest3_Init(Tcl_Interp*);
    extern int Sqlitetest4_Init(Tcl_Interp*);
    extern int Sqlitetest5_Init(Tcl_Interp*);
    extern int Sqlitetest6_Init(Tcl_Interp*);
    extern int Sqlitetest7_Init(Tcl_Interp*);
    extern int Sqlitetest8_Init(Tcl_Interp*);
    extern int Sqlitetest9_Init(Tcl_Interp*);
    extern int Md5_Init(Tcl_Interp*);
    extern int Sqlitetestsse_Init(Tcl_Interp*);
    extern int Sqlitetestasync_Init(Tcl_Interp*);
    extern int Sqlitetesttclvar_Init(Tcl_Interp*);
    extern int Sqlitetestschema_Init(Tcl_Interp*);
    extern int Sqlitetest_autoext_Init(Tcl_Interp*);
    extern int Sqlitetest_hexio_Init(Tcl_Interp*);
    extern int Sqliteconfig_Init(Tcl_Interp*);



    Sqlitetest1_Init(interp);
    Sqlitetest2_Init(interp);
    Sqlitetest3_Init(interp);
    Sqlitetest4_Init(interp);
    Sqlitetest5_Init(interp);
    Sqlitetest6_Init(interp);
    Sqlitetest7_Init(interp);
    Sqlitetest8_Init(interp);
    Sqlitetest9_Init(interp);
    Sqlitetestasync_Init(interp);
    Sqlitetesttclvar_Init(interp);
    Sqlitetestschema_Init(interp);
    Sqlitetest_autoext_Init(interp);
    Sqlitetest_hexio_Init(interp);

    Sqliteconfig_Init(interp);
    Md5_Init(interp);
#ifdef SQLITE_SSE
    Sqlitetestsse_Init(interp);
#endif
  }
#endif
  if( argc>=2 || TCLSH==2 ){
    int i;








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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** A TCL Interface to SQLite.  Append this file to sqlite3.c and
** compile the whole thing to build a TCL-enabled version of SQLite.
**
** $Id: tclsqlite.c,v 1.195 2007/08/15 19:16:43 drh Exp $
*/
#include "tcl.h"
#include <errno.h>

/*
** Some additional include files are needed if this file is not
** appended to the amalgamation.
................................................................................
int TCLSH_MAIN(int argc, char **argv){
  Tcl_Interp *interp;
  Tcl_FindExecutable(argv[0]);
  interp = Tcl_CreateInterp();
  Sqlite3_Init(interp);
#ifdef SQLITE_TEST
  {
    extern int Md5_Init(Tcl_Interp*);
    extern int Sqliteconfig_Init(Tcl_Interp*);
    extern int Sqlitetest1_Init(Tcl_Interp*);
    extern int Sqlitetest2_Init(Tcl_Interp*);
    extern int Sqlitetest3_Init(Tcl_Interp*);
    extern int Sqlitetest4_Init(Tcl_Interp*);
    extern int Sqlitetest5_Init(Tcl_Interp*);
    extern int Sqlitetest6_Init(Tcl_Interp*);
    extern int Sqlitetest7_Init(Tcl_Interp*);
    extern int Sqlitetest8_Init(Tcl_Interp*);
    extern int Sqlitetest9_Init(Tcl_Interp*);
    extern int Sqlitetestasync_Init(Tcl_Interp*);
    extern int Sqlitetest_autoext_Init(Tcl_Interp*);
    extern int Sqlitetest_hexio_Init(Tcl_Interp*);
    extern int Sqlitetest_malloc_Init(Tcl_Interp*);
    extern int Sqlitetestschema_Init(Tcl_Interp*);
    extern int Sqlitetestsse_Init(Tcl_Interp*);
    extern int Sqlitetesttclvar_Init(Tcl_Interp*);


    Md5_Init(interp);
    Sqliteconfig_Init(interp);
    Sqlitetest1_Init(interp);
    Sqlitetest2_Init(interp);
    Sqlitetest3_Init(interp);
    Sqlitetest4_Init(interp);
    Sqlitetest5_Init(interp);
    Sqlitetest6_Init(interp);
    Sqlitetest7_Init(interp);
    Sqlitetest8_Init(interp);
    Sqlitetest9_Init(interp);
    Sqlitetestasync_Init(interp);


    Sqlitetest_autoext_Init(interp);
    Sqlitetest_hexio_Init(interp);
    Sqlitetest_malloc_Init(interp);
    Sqlitetestschema_Init(interp);
    Sqlitetesttclvar_Init(interp);
#ifdef SQLITE_SSE
    Sqlitetestsse_Init(interp);
#endif
  }
#endif
  if( argc>=2 || TCLSH==2 ){
    int i;

Added src/test_malloc.c. 

























































































































































































































































































































































































































































































































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/*
** 2007 August 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.
**
*************************************************************************
**
** This file contains code used to implement test interfaces to the
** memory allocation subsystem.
**
** $Id: test_malloc.c,v 1.1 2007/08/15 19:16:43 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>

/*
** Transform pointers to text and back again
*/
static void pointerToText(void *p, char *z){
  static const char zHex[] = "0123456789abcdef";
  int i, k;
  sqlite3_uint64 n = (sqlite3_uint64)p;
  for(i=0, k=sizeof(p)*2-1; i<sizeof(p)*2; i++, k--){
    z[k] = zHex[n&0xf];
    n >>= 4;
  }
  z[sizeof(p)*2] = 0;
}
static int hexToInt(int h){
  if( h>='0' && h<='9' ){
    return h - '0';
  }else if( h>='a' && h<='f' ){
    return h - 'a' + 10;
  }else{
    return -1;
  }
}
static int textToPointer(const char *z, void **pp){
  sqlite3_uint64 n = 0;
  int i;
  for(i=0; i<sizeof(void*)*2 && z[0]; i++){
    int v;
    v = hexToInt(*z++);
    if( v<0 ) return TCL_ERROR;
    n = n*16 + v;
  }
  if( *z!=0 ) return TCL_ERROR;
  *pp = (void*)n;
  return TCL_OK;
}

/*
** Usage:    sqlite3_malloc  NBYTES
**
** Raw test interface for sqlite3_malloc().
*/
static int test_malloc(
  void * clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
  int nByte;
  void *p;
  char zOut[100];
  if( objc!=2 ){
    Tcl_WrongNumArgs(interp, 1, objv, "NBYTES");
    return TCL_ERROR;
  }
  if( Tcl_GetIntFromObj(interp, objv[1], &nByte) ) return TCL_ERROR;
  p = sqlite3_malloc((unsigned)nByte);
  pointerToText(p, zOut);
  Tcl_AppendResult(interp, zOut, NULL);
  return TCL_OK;
}

/*
** Usage:    sqlite3_realloc  PRIOR  NBYTES
**
** Raw test interface for sqlite3_realloc().
*/
static int test_realloc(
  void * clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
  int nByte;
  void *pPrior, *p;
  char zOut[100];
  if( objc!=3 ){
    Tcl_WrongNumArgs(interp, 1, objv, "PRIOR NBYTES");
    return TCL_ERROR;
  }
  if( Tcl_GetIntFromObj(interp, objv[2], &nByte) ) return TCL_ERROR;
  if( textToPointer(Tcl_GetString(objv[1]), &pPrior) ){
    Tcl_AppendResult(interp, "bad pointer: ", Tcl_GetString(objv[1]), (char*)0);
    return TCL_ERROR;
  }
  p = sqlite3_realloc(pPrior, (unsigned)nByte);
  pointerToText(p, zOut);
  Tcl_AppendResult(interp, zOut, NULL);
  return TCL_OK;
}


/*
** Usage:    sqlite3_free  PRIOR
**
** Raw test interface for sqlite3_free().
*/
static int test_free(
  void * clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
  void *pPrior;
  if( objc!=2 ){
    Tcl_WrongNumArgs(interp, 1, objv, "PRIOR");
    return TCL_ERROR;
  }
  if( textToPointer(Tcl_GetString(objv[1]), &pPrior) ){
    Tcl_AppendResult(interp, "bad pointer: ", Tcl_GetString(objv[1]), (char*)0);
    return TCL_ERROR;
  }
  sqlite3_free(pPrior);
  return TCL_OK;
}

/*
** Usage:    sqlite3_memory_used
**
** Raw test interface for sqlite3_memory_used().
*/
static int test_memory_used(
  void * clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
  Tcl_SetObjResult(interp, Tcl_NewWideIntObj(sqlite3_memory_used()));
  return TCL_OK;
}

/*
** Usage:    sqlite3_memory_highwater ?RESETFLAG?
**
** Raw test interface for sqlite3_memory_highwater().
*/
static int test_memory_highwater(
  void * clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
  int resetFlag = 0;
  if( objc!=1 && objc!=2 ){
    Tcl_WrongNumArgs(interp, 1, objv, "?RESET?");
    return TCL_ERROR;
  }
  if( objc==2 ){
    if( Tcl_GetBooleanFromObj(interp, objv[1], &resetFlag) ) return TCL_ERROR;
  } 
  Tcl_SetObjResult(interp, 
     Tcl_NewWideIntObj(sqlite3_memory_highwater(resetFlag)));
  return TCL_OK;
}

/*
** Usage:    sqlite3_memdebug_backtrace DEPTH
**
** Set the depth of backtracing.  If SQLITE_MEMDEBUG is not defined
** then this routine is a no-op.
*/
static int test_memdebug_backtrace(
  void * clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
  int depth;
  if( objc!=2 ){
    Tcl_WrongNumArgs(interp, 1, objv, "DEPT");
    return TCL_ERROR;
  }
  if( Tcl_GetIntFromObj(interp, objv[1], &depth) ) return TCL_ERROR;
#ifdef SQLITE_MEMDEBUG
  {
    extern void sqlite3_memdebug_backtrace(int);
    sqlite3_memdebug_backtrace(depth);
  }
#endif
  return TCL_OK;
}

/*
** Usage:    sqlite3_memdebug_dump  FILENAME
**
** Write a summary of unfreed memory to FILENAME.
*/
static int test_memdebug_dump(
  void * clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
  if( objc!=2 ){
    Tcl_WrongNumArgs(interp, 1, objv, "FILENAME");
    return TCL_ERROR;
  }
#ifdef SQLITE_MEMDEBUG
  {
    extern void sqlite3_memdebug_dump(const char*);
    sqlite3_memdebug_dump(Tcl_GetString(objv[1]));
  }
#endif
  return TCL_OK;
}


/*
** Register commands with the TCL interpreter.
*/
int Sqlitetest_malloc_Init(Tcl_Interp *interp){
  static struct {
     char *zName;
     Tcl_ObjCmdProc *xProc;
  } aObjCmd[] = {
     { "sqlite3_malloc",             test_malloc                   },
     { "sqlite3_realloc",            test_realloc                  },
     { "sqlite3_free",               test_free                     },
     { "sqlite3_memory_used",        test_memory_used              },
     { "sqlite3_memory_highwater",   test_memory_highwater         },
     { "sqlite3_memdebug_backtrace", test_memdebug_backtrace       },
     { "sqlite3_memdebug_dump",      test_memdebug_dump            },
  };
  int i;
  for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
    Tcl_CreateObjCommand(interp, aObjCmd[i].zName, aObjCmd[i].xProc, 0, 0);
  }
  return TCL_OK;
}

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