wasCSharpSQLite – Rev 1
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using System.Diagnostics;
using va_list = System.Object;
namespace Community.CsharpSqlite
{
public partial class Sqlite3
{
/*
** 2004 May 22
**
** 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 macros and a little bit of code that is common to
** all of the platform-specific files (os_*.c) and is #included into those
** files.
**
** This file should be #included by the os_*.c files only. It is not a
** general purpose header file.
*************************************************************************
** Included in SQLite3 port to C#-SQLite; 2008 Noah B Hart
** C#-SQLite is an independent reimplementation of the SQLite software library
**
** SQLITE_SOURCE_ID: 2010-08-23 18:52:01 42537b60566f288167f1b5864a5435986838e3a3
**
*************************************************************************
*/
//#if !_OS_COMMON_H_
//#define _OS_COMMON_H_
/*
** At least two bugs have slipped in because we changed the MEMORY_DEBUG
** macro to SQLITE_DEBUG and some older makefiles have not yet made the
** switch. The following code should catch this problem at compile-time.
*/
//#if MEMORY_DEBUG
//# error "The MEMORY_DEBUG macro is obsolete. Use SQLITE_DEBUG instead."
//#endif
#if SQLITE_DEBUG || TRACE
static bool sqlite3OsTrace = false;
//#define OSTRACE(X) if( sqlite3OSTrace ) sqlite3DebugPrintf X
static void OSTRACE( string X, params va_list[] ap )
{
if ( sqlite3OsTrace )
sqlite3DebugPrintf( X, ap );
}
#else
//#define OSTRACE(X)
static void OSTRACE( string X, params object[] ap) { }
#endif
/*
** Macros for performance tracing. Normally turned off. Only works
** on i486 hardware.
*/
#if SQLITE_PERFORMANCE_TRACE
/*
** hwtime.h contains inline assembler code for implementing
** high-performance timing routines.
*/
//#include "hwtime.h"
static sqlite_u3264 g_start;
static sqlite_u3264 g_elapsed;
//#define TIMER_START g_start=sqlite3Hwtime()
//#define TIMER_END g_elapsed=sqlite3Hwtime()-g_start
//#define TIMER_ELAPSED g_elapsed
#else
const int TIMER_START = 0; //#define TIMER_START
const int TIMER_END = 0; //#define TIMER_END
const int TIMER_ELAPSED = 0; //#define TIMER_ELAPSED ((sqlite_u3264)0)
#endif
/*
** If we compile with the SQLITE_TEST macro set, then the following block
** of code will give us the ability to simulate a disk I/O error. This
** is used for testing the I/O recovery logic.
*/
#if SQLITE_TEST
#if !TCLSH
static int sqlite3_io_error_hit = 0; /* Total number of I/O Errors */
static int sqlite3_io_error_hardhit = 0; /* Number of non-benign errors */
static int sqlite3_io_error_pending = 0; /* Count down to first I/O error */
static int sqlite3_io_error_persist = 0; /* True if I/O errors persist */
static int sqlite3_io_error_benign = 0; /* True if errors are benign */
static int sqlite3_diskfull_pending = 0;
static int sqlite3_diskfull = 0;
#else
static tcl.lang.Var.SQLITE3_GETSET sqlite3_io_error_hit = new tcl.lang.Var.SQLITE3_GETSET( "sqlite_io_error_hit" );
static tcl.lang.Var.SQLITE3_GETSET sqlite3_io_error_hardhit = new tcl.lang.Var.SQLITE3_GETSET( "sqlite_io_error_hardhit" );
static tcl.lang.Var.SQLITE3_GETSET sqlite3_io_error_pending = new tcl.lang.Var.SQLITE3_GETSET( "sqlite_io_error_pending" );
static tcl.lang.Var.SQLITE3_GETSET sqlite3_io_error_persist = new tcl.lang.Var.SQLITE3_GETSET( "sqlite_io_error_persist" );
static tcl.lang.Var.SQLITE3_GETSET sqlite3_io_error_benign = new tcl.lang.Var.SQLITE3_GETSET( "sqlite_io_error_benign" );
static tcl.lang.Var.SQLITE3_GETSET sqlite3_diskfull_pending = new tcl.lang.Var.SQLITE3_GETSET( "sqlite_diskfull_pending" );
static tcl.lang.Var.SQLITE3_GETSET sqlite3_diskfull = new tcl.lang.Var.SQLITE3_GETSET( "sqlite_diskfull" );
#endif
static void SimulateIOErrorBenign( int X )
{
#if !TCLSH
sqlite3_io_error_benign = ( X );
#else
sqlite3_io_error_benign.iValue = ( X );
#endif
}
//#define SimulateIOError(CODE) \
// if( (sqlite3_io_error_persist && sqlite3_io_error_hit) \
// || sqlite3_io_error_pending-- == 1 ) \
// { local_ioerr(); CODE; }
static bool SimulateIOError()
{
#if !TCLSH
if ( ( sqlite3_io_error_persist != 0 && sqlite3_io_error_hit != 0 )
|| sqlite3_io_error_pending-- == 1 )
#else
if ( ( sqlite3_io_error_persist.iValue != 0 && sqlite3_io_error_hit.iValue != 0 )
|| sqlite3_io_error_pending.iValue-- == 1 )
#endif
{
local_ioerr();
return true;
}
return false;
}
static void local_ioerr()
{
#if TRACE
IOTRACE( "IOERR\n" );
#endif
#if !TCLSH
sqlite3_io_error_hit++;
if ( sqlite3_io_error_benign == 0 )
sqlite3_io_error_hardhit++;
#else
sqlite3_io_error_hit.iValue++;
if ( sqlite3_io_error_benign.iValue == 0 )
sqlite3_io_error_hardhit.iValue++;
#endif
}
//#define SimulateDiskfullError(CODE) \
// if( sqlite3_diskfull_pending ){ \
// if( sqlite3_diskfull_pending == 1 ){ \
// local_ioerr(); \
// sqlite3_diskfull = 1; \
// sqlite3_io_error_hit = 1; \
// CODE; \
// }else{ \
// sqlite3_diskfull_pending--; \
// } \
// }
static bool SimulateDiskfullError()
{
#if !TCLSH
if ( sqlite3_diskfull_pending != 0 )
{
if ( sqlite3_diskfull_pending == 1 )
{
#else
if ( sqlite3_diskfull_pending.iValue != 0 )
{
if ( sqlite3_diskfull_pending.iValue == 1 )
{
#endif
local_ioerr();
#if !TCLSH
sqlite3_diskfull = 1;
sqlite3_io_error_hit = 1;
#else
sqlite3_diskfull.iValue = 1;
sqlite3_io_error_hit.iValue = 1;
#endif
return true;
}
else
{
#if !TCLSH
sqlite3_diskfull_pending--;
#else
sqlite3_diskfull_pending.iValue--;
#endif
}
}
return false;
}
#else
static bool SimulateIOError() { return false; }
//#define SimulateIOErrorBenign(X)
static void SimulateIOErrorBenign( int x ) { }
//#define SimulateIOError(A)
//#define SimulateDiskfullError(A)
#endif
/*
** When testing, keep a count of the number of open files.
*/
#if SQLITE_TEST
#if !TCLSH
static int sqlite3_open_file_count = 0;
#else
static tcl.lang.Var.SQLITE3_GETSET sqlite3_open_file_count = new tcl.lang.Var.SQLITE3_GETSET( "sqlite3_open_file_count" );
#endif
static void OpenCounter( int X )
{
#if !TCLSH
sqlite3_open_file_count += ( X );
#else
sqlite3_open_file_count.iValue += ( X );
#endif
}
#else
//#define OpenCounter(X)
#endif
//#endif //* !_OS_COMMON_H_) */
}
}