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Overview
Comment:Have mem3.c and mem5.c grab a mutex when required. Include them both in the amalgamation again. (CVS 5306)
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SHA1: 9e3c95ff4048cd8e4c56acf7a8ebedc49621e9c7
User & Date: danielk1977 2008-06-25 14:57:54
Context
2008-06-25
17:19
Remove internal function sqlite3OsDefaultVfs(). The built-in VFS layers now register their VFS implementations by calling sqlite3_vfs_register() from within sqlite3_os_init(). (CVS 5307) check-in: 8fa33b79 user: danielk1977 tags: trunk
14:57
Have mem3.c and mem5.c grab a mutex when required. Include them both in the amalgamation again. (CVS 5306) check-in: 9e3c95ff user: danielk1977 tags: trunk
14:31
Test enhancements, especially to the new compound-SELECT merge logic. (CVS 5305) check-in: edf7f518 user: drh tags: trunk
Changes
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Changes to src/mem3.c. 

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** implementations. Once sqlite3_initialize() has been called,
** the amount of memory available to SQLite is fixed and cannot
** be changed.
**
** This version of the memory allocation subsystem is included
** in the build only if SQLITE_ENABLE_MEMSYS3 is defined.
**
** $Id: mem3.c,v 1.16 2008/06/25 10:34:35 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** This version of the memory allocator is only built into the library
** SQLITE_ENABLE_MEMSYS3 is defined. Defining this symbol does not
** mean that the library will use a memory-pool by default, just that
................................................................................
  }else{
    hash = size % N_HASH;
    memsys3LinkIntoList(i, &mem3.aiHash[hash]);
  }
}

/*
** Enter the mutex mem3.mutex. Allocate it if it is not already allocated.
**
** Also:  Initialize the memory allocation subsystem the first time
** this routine is called.
*/
static void memsys3Enter(void){
#if 0
  if( mem3.mutex==0 ){

    mem3.mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM);
  }
  sqlite3_mutex_enter(mem3.mutex);
#endif
}
static void memsys3Leave(void){

}

/*
** Called when we are unable to satisfy an allocation of nBytes.
*/
static void memsys3OutOfMemory(int nByte){
  if( !mem3.alarmBusy ){








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** implementations. Once sqlite3_initialize() has been called,
** the amount of memory available to SQLite is fixed and cannot
** be changed.
**
** This version of the memory allocation subsystem is included
** in the build only if SQLITE_ENABLE_MEMSYS3 is defined.
**
** $Id: mem3.c,v 1.17 2008/06/25 14:57:54 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** This version of the memory allocator is only built into the library
** SQLITE_ENABLE_MEMSYS3 is defined. Defining this symbol does not
** mean that the library will use a memory-pool by default, just that
................................................................................
  }else{
    hash = size % N_HASH;
    memsys3LinkIntoList(i, &mem3.aiHash[hash]);
  }
}

/*
** If the STATIC_MEM mutex is not already held, obtain it now. The mutex
** will already be held (obtained by code in malloc.c) if
** sqlite3Config.bMemStat is true.

*/
static void memsys3Enter(void){


  if( sqlite3Config.bMemstat==0 && mem3.mutex==0 ){
    mem3.mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM);
  }
  sqlite3_mutex_enter(mem3.mutex);

}
static void memsys3Leave(void){
  sqlite3_mutex_leave(mem3.mutex);
}

/*
** Called when we are unable to satisfy an allocation of nBytes.
*/
static void memsys3OutOfMemory(int nByte){
  if( !mem3.alarmBusy ){

Changes to src/mem5.c. 

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** implementations. Once sqlite3_initialize() has been called,
** the amount of memory available to SQLite is fixed and cannot
** be changed.
**
** This version of the memory allocation subsystem is included
** in the build only if SQLITE_ENABLE_MEMSYS5 is defined.
**
** $Id: mem5.c,v 1.7 2008/06/25 14:26:08 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** This version of the memory allocator is used only when 
** SQLITE_POW2_MEMORY_SIZE is defined.
*/
................................................................................
    assert( x<mem5.nBlock );
    mem5.aPool[x].u.list.prev = i;
  }
  mem5.aiFreelist[iLogsize] = i;
}

/*
** Enter the mutex mem5.mutex. Allocate it if it is not already allocated.
**
** Also:  Initialize the memory allocation subsystem the first time
** this routine is called.
*/
static void memsys5Enter(void){


}


static void memsys5Leave(void){

}

/*
** Return the size of an outstanding allocation, in bytes.  The
** size returned omits the 8-byte header overhead.  This only
** works for chunks that are currently checked out.
*/








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** implementations. Once sqlite3_initialize() has been called,
** the amount of memory available to SQLite is fixed and cannot
** be changed.
**
** This version of the memory allocation subsystem is included
** in the build only if SQLITE_ENABLE_MEMSYS5 is defined.
**
** $Id: mem5.c,v 1.8 2008/06/25 14:57:54 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** This version of the memory allocator is used only when 
** SQLITE_POW2_MEMORY_SIZE is defined.
*/
................................................................................
    assert( x<mem5.nBlock );
    mem5.aPool[x].u.list.prev = i;
  }
  mem5.aiFreelist[iLogsize] = i;
}

/*
** If the STATIC_MEM mutex is not already held, obtain it now. The mutex
** will already be held (obtained by code in malloc.c) if
** sqlite3Config.bMemStat is true.

*/
static void memsys5Enter(void){
  if( sqlite3Config.bMemstat==0 && mem5.mutex==0 ){
    mem5.mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM);
  }
  sqlite3_mutex_enter(mem5.mutex);
}
static void memsys5Leave(void){
  sqlite3_mutex_leave(mem5.mutex);
}

/*
** Return the size of an outstanding allocation, in bytes.  The
** size returned omits the 8-byte header overhead.  This only
** works for chunks that are currently checked out.
*/

Changes to src/test_config.c. 

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** 
** This file contains code used for testing the SQLite system.
** None of the code in this file goes into a deliverable build.
** 
** The focus of this file is providing the TCL testing layer
** access to compile-time constants.
**
** $Id: test_config.c,v 1.27 2008/06/12 12:51:37 drh Exp $
*/

#include "sqliteLimit.h"

#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
................................................................................

#ifdef SQLITE_MEMDEBUG
  Tcl_SetVar2(interp, "sqlite_options", "memdebug", "1", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "memdebug", "0", TCL_GLOBAL_ONLY);
#endif

#ifdef SQLITE_MEMORY_SIZE
  Tcl_SetVar2(interp, "sqlite_options", "mem3", "1", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "mem3", "0", TCL_GLOBAL_ONLY);
#endif

#ifdef SQLITE_POW2_MEMORY_SIZE
  Tcl_SetVar2(interp, "sqlite_options", "mem5", "1", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "mem5", "0", TCL_GLOBAL_ONLY);
#endif

#ifdef SQLITE_OMIT_ALTERTABLE
  Tcl_SetVar2(interp, "sqlite_options", "altertable", "0", TCL_GLOBAL_ONLY);








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** 
** This file contains code used for testing the SQLite system.
** None of the code in this file goes into a deliverable build.
** 
** The focus of this file is providing the TCL testing layer
** access to compile-time constants.
**
** $Id: test_config.c,v 1.28 2008/06/25 14:57:54 danielk1977 Exp $
*/

#include "sqliteLimit.h"

#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
................................................................................

#ifdef SQLITE_MEMDEBUG
  Tcl_SetVar2(interp, "sqlite_options", "memdebug", "1", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "memdebug", "0", TCL_GLOBAL_ONLY);
#endif

#ifdef SQLITE_ENABLE_MEMSYS3
  Tcl_SetVar2(interp, "sqlite_options", "mem3", "1", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "mem3", "0", TCL_GLOBAL_ONLY);
#endif

#ifdef SQLITE_ENABLE_MEMSYS5
  Tcl_SetVar2(interp, "sqlite_options", "mem5", "1", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "mem5", "0", TCL_GLOBAL_ONLY);
#endif

#ifdef SQLITE_OMIT_ALTERTABLE
  Tcl_SetVar2(interp, "sqlite_options", "altertable", "0", TCL_GLOBAL_ONLY);

Changes to test/permutations.test. 

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#
#    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.
#
#***********************************************************************
#
# $Id: permutations.test,v 1.6 2008/06/25 14:26:09 danielk1977 Exp $

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

# Argument processing.
#
set ::testmode [lindex $argv 0]
................................................................................
#
run_tests "autovacuum_ioerr" -description {
  Run ioerr.test in autovacuum mode.
} -presql {
  pragma auto_vacuum = 1
} -include ioerr.test


run_tests "memsys3" -description {
  Run tests using the allocator in mem3.c.
} -exclude {
  incrblob2.test manydb.test  autovacuum.test bigrow.test
  collate5.test  delete3.test index2.test     ioerr.test  join3.test 
  pagesize.test  bitvec.test  capi3.test      memsubsys1.test  limit.test
  memdb.test     capi3c.test
} -initialize {
  catch {db close}
  sqlite3_reset_auto_extension
  sqlite3_shutdown
  sqlite3_config_memsys3 1000000
  install_malloc_faultsim 1 
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_reset_auto_extension
  sqlite3_shutdown
  sqlite3_config_memsys3 0
  install_malloc_faultsim 1 
  sqlite3_initialize
}



run_tests "memsys5" -description {
  Run tests using the allocator in mem3.c.
} -exclude {
  incrblob2.test manydb.test  autovacuum.test bigrow.test
  collate5.test  delete3.test index2.test     ioerr.test  join3.test 
  pagesize.test  bitvec.test  capi3.test      memsubsys1.test  limit.test
  memdb.test     capi3c.test  func.test
} -initialize {
  catch {db close}
  sqlite3_reset_auto_extension
  sqlite3_shutdown
  sqlite3_config_memsys5 1000000
  install_malloc_faultsim 1 
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_reset_auto_extension
  sqlite3_shutdown
  sqlite3_config_memsys5 0
  install_malloc_faultsim 1 
  sqlite3_initialize

}

# run_tests "crash_safe_append" -description {
#   Run crash.test with persistent journals on a SAFE_APPEND file-system.
# } -initialize {
#   rename crashsql sa_crashsql
#   proc crashsql {args} {








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#
#    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.
#
#***********************************************************************
#
# $Id: permutations.test,v 1.7 2008/06/25 14:57:54 danielk1977 Exp $

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

# Argument processing.
#
set ::testmode [lindex $argv 0]
................................................................................
#
run_tests "autovacuum_ioerr" -description {
  Run ioerr.test in autovacuum mode.
} -presql {
  pragma auto_vacuum = 1
} -include ioerr.test

ifcapable mem3 {
  run_tests "memsys3" -description {
    Run tests using the allocator in mem3.c.
  } -exclude {
    incrblob2.test manydb.test  autovacuum.test bigrow.test
    collate5.test  delete3.test index2.test     ioerr.test  join3.test 
    pagesize.test  bitvec.test  capi3.test      memsubsys1.test  limit.test
    memdb.test     capi3c.test
  } -initialize {
    catch {db close}
    sqlite3_reset_auto_extension
    sqlite3_shutdown
    sqlite3_config_memsys3 1000000
    install_malloc_faultsim 1 
    sqlite3_initialize
    autoinstall_test_functions
  } -shutdown {
    catch {db close}
    sqlite3_reset_auto_extension
    sqlite3_shutdown
    sqlite3_config_memsys3 0
    install_malloc_faultsim 1 
    sqlite3_initialize
  }
}

ifcapable mem5 {
  run_tests "memsys5" -description {
    Run tests using the allocator in mem5.c.
  } -exclude {
    incrblob2.test manydb.test  autovacuum.test bigrow.test
    collate5.test  delete3.test index2.test     ioerr.test  join3.test 
    pagesize.test  bitvec.test  capi3.test      memsubsys1.test  limit.test
    memdb.test     capi3c.test  func.test
  } -initialize {
    catch {db close}
    sqlite3_reset_auto_extension
    sqlite3_shutdown
    sqlite3_config_memsys5 1000000
    install_malloc_faultsim 1 
    sqlite3_initialize
    autoinstall_test_functions
  } -shutdown {
    catch {db close}
    sqlite3_reset_auto_extension
    sqlite3_shutdown
    sqlite3_config_memsys5 0
    install_malloc_faultsim 1 
    sqlite3_initialize
  }
}

# run_tests "crash_safe_append" -description {
#   Run crash.test with persistent journals on a SAFE_APPEND file-system.
# } -initialize {
#   rename crashsql sa_crashsql
#   proc crashsql {args} {

Changes to tool/mksqlite3c.tcl. 

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   status.c
   date.c
   os.c

   fault.c
   mem1.c
   mem2.c


   mutex.c
   mutex_os2.c
   mutex_unix.c
   mutex_w32.c
   malloc.c
   printf.c
   random.c








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   status.c
   date.c
   os.c

   fault.c
   mem1.c
   mem2.c
   mem3.c
   mem5.c
   mutex.c
   mutex_os2.c
   mutex_unix.c
   mutex_w32.c
   malloc.c
   printf.c
   random.c

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