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Comment:Change OS_UNIX to SQLITE_OS_UNIX in test_thread.c. Modify notify2.test to print out its timings in addition to reporting success or failure. (CVS 6382)
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SHA1:940d72d2bae95ddd1aea9b63424179735f440296
User & Date: drh 2009-03-24 18:42:16
Context
2009-03-25
01:06
Use fdatasync() only on linux, unless -Dfdatasync=fdatasync is set at compilation time. (CVS 6383) check-in: cbf2ca4c user: drh tags: trunk
2009-03-24
18:42
Change OS_UNIX to SQLITE_OS_UNIX in test_thread.c. Modify notify2.test to print out its timings in addition to reporting success or failure. (CVS 6382) check-in: 940d72d2 user: drh tags: trunk
17:43
Get the OOM tester in async2.test working again. (CVS 6381) check-in: f398a2d1 user: drh tags: trunk
Changes
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Changes to src/test_thread.c. 

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**
*************************************************************************
**
** This file contains the implementation of some Tcl commands used to
** test that sqlite3 database handles may be concurrently accessed by 
** multiple threads. Right now this only works on unix.
**
** $Id: test_thread.c,v 1.13 2009/03/23 17:11:27 danielk1977 Exp $
*/

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

#if SQLITE_THREADSAFE

................................................................................
  int rc;
  SqlThread *p = (SqlThread *)pSqlThread;
  extern int Sqlitetest_mutex_Init(Tcl_Interp*);

  interp = Tcl_CreateInterp();
  Tcl_CreateObjCommand(interp, "clock_seconds", clock_seconds_proc, 0, 0);
  Tcl_CreateObjCommand(interp, "sqlthread", sqlthread_proc, pSqlThread, 0);
#if defined(OS_UNIX) && defined(SQLITE_ENABLE_UNLOCK_NOTIFY)
  Tcl_CreateObjCommand(interp, "sqlite3_blocking_step", blocking_step_proc,0,0);
  Tcl_CreateObjCommand(interp, 
      "sqlite3_blocking_prepare_v2", blocking_prepare_v2_proc, (void *)1, 0);
  Tcl_CreateObjCommand(interp, 
      "sqlite3_nonblocking_prepare_v2", blocking_prepare_v2_proc, 0, 0);
#endif
  Sqlitetest1_Init(interp);
................................................................................
** The source code for the C functions sqlite3_blocking_step(),
** blocking_step_notify() and the structure UnlockNotification is
** automatically extracted from this file and used as part of the
** documentation for the sqlite3_unlock_notify() API function. This
** should be considered if these functions are to be extended (i.e. to 
** support windows) in the future.
*/ 
#if defined(OS_UNIX) && defined(SQLITE_ENABLE_UNLOCK_NOTIFY)

/* BEGIN_SQLITE_BLOCKING_STEP */
/* This example uses the pthreads API */
#include <pthread.h>

/*
** A pointer to an instance of this structure is passed as the user-context
................................................................................

/*
** Register commands with the TCL interpreter.
*/
int SqlitetestThread_Init(Tcl_Interp *interp){
  Tcl_CreateObjCommand(interp, "sqlthread", sqlthread_proc, 0, 0);
  Tcl_CreateObjCommand(interp, "clock_seconds", clock_seconds_proc, 0, 0);
#if defined(OS_UNIX) && defined(SQLITE_ENABLE_UNLOCK_NOTIFY)
  Tcl_CreateObjCommand(interp, "sqlite3_blocking_step", blocking_step_proc,0,0);
  Tcl_CreateObjCommand(interp, 
      "sqlite3_blocking_prepare_v2", blocking_prepare_v2_proc, (void *)1, 0);
  Tcl_CreateObjCommand(interp, 
      "sqlite3_nonblocking_prepare_v2", blocking_prepare_v2_proc, 0, 0);
#endif
  return TCL_OK;
}
#else
int SqlitetestThread_Init(Tcl_Interp *interp){
  return TCL_OK;
}
#endif








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**
*************************************************************************
**
** This file contains the implementation of some Tcl commands used to
** test that sqlite3 database handles may be concurrently accessed by 
** multiple threads. Right now this only works on unix.
**
** $Id: test_thread.c,v 1.14 2009/03/24 18:42:16 drh Exp $
*/

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

#if SQLITE_THREADSAFE

................................................................................
  int rc;
  SqlThread *p = (SqlThread *)pSqlThread;
  extern int Sqlitetest_mutex_Init(Tcl_Interp*);

  interp = Tcl_CreateInterp();
  Tcl_CreateObjCommand(interp, "clock_seconds", clock_seconds_proc, 0, 0);
  Tcl_CreateObjCommand(interp, "sqlthread", sqlthread_proc, pSqlThread, 0);
#if defined(SQLITE_OS_UNIX) && defined(SQLITE_ENABLE_UNLOCK_NOTIFY)
  Tcl_CreateObjCommand(interp, "sqlite3_blocking_step", blocking_step_proc,0,0);
  Tcl_CreateObjCommand(interp, 
      "sqlite3_blocking_prepare_v2", blocking_prepare_v2_proc, (void *)1, 0);
  Tcl_CreateObjCommand(interp, 
      "sqlite3_nonblocking_prepare_v2", blocking_prepare_v2_proc, 0, 0);
#endif
  Sqlitetest1_Init(interp);
................................................................................
** The source code for the C functions sqlite3_blocking_step(),
** blocking_step_notify() and the structure UnlockNotification is
** automatically extracted from this file and used as part of the
** documentation for the sqlite3_unlock_notify() API function. This
** should be considered if these functions are to be extended (i.e. to 
** support windows) in the future.
*/ 
#if defined(SQLITE_OS_UNIX) && defined(SQLITE_ENABLE_UNLOCK_NOTIFY)

/* BEGIN_SQLITE_BLOCKING_STEP */
/* This example uses the pthreads API */
#include <pthread.h>

/*
** A pointer to an instance of this structure is passed as the user-context
................................................................................

/*
** Register commands with the TCL interpreter.
*/
int SqlitetestThread_Init(Tcl_Interp *interp){
  Tcl_CreateObjCommand(interp, "sqlthread", sqlthread_proc, 0, 0);
  Tcl_CreateObjCommand(interp, "clock_seconds", clock_seconds_proc, 0, 0);
#if defined(SQLITE_OS_UNIX) && defined(SQLITE_ENABLE_UNLOCK_NOTIFY)
  Tcl_CreateObjCommand(interp, "sqlite3_blocking_step", blocking_step_proc,0,0);
  Tcl_CreateObjCommand(interp, 
      "sqlite3_blocking_prepare_v2", blocking_prepare_v2_proc, (void *)1, 0);
  Tcl_CreateObjCommand(interp, 
      "sqlite3_nonblocking_prepare_v2", blocking_prepare_v2_proc, 0, 0);
#endif
  return TCL_OK;
}
#else
int SqlitetestThread_Init(Tcl_Interp *interp){
  return TCL_OK;
}
#endif

Changes to test/notify2.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: notify2.test,v 1.3 2009/03/23 17:11:27 danielk1977 Exp $

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

# The tests in this file test the sqlite3_blocking_step() function in
# test_thread.c. sqlite3_blocking_step() is not an SQLite API function,
# it is just a demonstration of how the sqlite3_unlock_notify() function
................................................................................
}
db close
set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
source $testdir/thread_common.tcl

# Number of threads to run simultaneously.
#
set nThread 3
set nSecond 5

# The Tcl script executed by each of the $nThread threads used by this test.
#
set ThreadProgram {

  # Proc used by threads to execute SQL.
................................................................................
           + (SELECT max(a) FROM t2)
           + (SELECT max(a) FROM t3)
    }]
    db close
  } {}
}








do_test notify2-3 {
  expr {$anWrite(sqlite3_blocking_step) > $anWrite(sqlite3_step)}
} {1}

sqlite3_enable_shared_cache $::enable_shared_cache
finish_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: notify2.test,v 1.4 2009/03/24 18:42:16 drh Exp $

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

# The tests in this file test the sqlite3_blocking_step() function in
# test_thread.c. sqlite3_blocking_step() is not an SQLite API function,
# it is just a demonstration of how the sqlite3_unlock_notify() function
................................................................................
}
db close
set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
source $testdir/thread_common.tcl

# Number of threads to run simultaneously.
#
set nThread 6
set nSecond 5

# The Tcl script executed by each of the $nThread threads used by this test.
#
set ThreadProgram {

  # Proc used by threads to execute SQL.
................................................................................
           + (SELECT max(a) FROM t2)
           + (SELECT max(a) FROM t3)
    }]
    db close
  } {}
}

# The following tests checks to make sure sqlite3_blocking_step() is
# faster than sqlite3_step().  blocking_step() is always faster on
# multi-core and is usually faster on single-core.  But sometimes, by
# chance, step() will be faster on a single core, in which case the
# following test will fail.
#
puts [array get anWrite]
do_test notify2-3 {
  expr {$anWrite(sqlite3_blocking_step) > $anWrite(sqlite3_step)}
} {1}

sqlite3_enable_shared_cache $::enable_shared_cache
finish_test

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