mirror of
https://github.com/DaedalusX64/daedalus.git
synced 2025-04-02 10:21:48 -04:00
140 lines
4.1 KiB
C++
140 lines
4.1 KiB
C++
/*
|
|
Copyright (C) 2004 StrmnNrmn
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
*/
|
|
|
|
#ifndef UTILITY_SYNCHRONISER_H_
|
|
#define UTILITY_SYNCHRONISER_H_
|
|
|
|
#include "Base/Macros.h"
|
|
|
|
#ifdef DAEDALUS_ENABLE_SYNCHRONISATION
|
|
//*****************************************************************************
|
|
// Synchronisation flags
|
|
//*****************************************************************************
|
|
enum ESynchFlags
|
|
{
|
|
DAED_SYNC_NONE = 0x00000000,
|
|
|
|
DAED_SYNC_REG_GPR = 0x00000001, // e.g. r0, at, t0, t1
|
|
DAED_SYNC_REG_CCR0 = 0x00000002, // e.g. status, control
|
|
DAED_SYNC_REG_CPU1 = 0x00000004, // e.g. fp00, fp01
|
|
DAED_SYNC_REG_CCR1 = 0x00000008, // e.g. fcr0, fcr31
|
|
|
|
DAED_SYNC_REG_PC = 0x00000010, // e.g. program counter
|
|
DAED_SYNC_FRAGMENT_PC = 0x00000020, // e.g. program counter on entry/exit from fragments
|
|
};
|
|
|
|
//
|
|
// Define a union of the above flags to determine what is synchronised.
|
|
// The compiler is clever enough to optimise away calls to SYNCH_POINT
|
|
// if a particular flag isn't set.
|
|
//
|
|
static const u32 DAED_SYNC_REGS(DAED_SYNC_REG_GPR|DAED_SYNC_REG_CCR0|
|
|
DAED_SYNC_REG_CPU1|DAED_SYNC_REG_CCR1);
|
|
|
|
static const u32 DAED_SYNC_MASK(DAED_SYNC_FRAGMENT_PC|DAED_SYNC_REG_GPR|DAED_SYNC_REG_CCR0);
|
|
|
|
//*****************************************************************************
|
|
// Base synchronisation interface
|
|
//*****************************************************************************
|
|
class CSynchroniser
|
|
{
|
|
public:
|
|
virtual ~CSynchroniser() {}
|
|
|
|
virtual bool IsOpen() const = 0;
|
|
|
|
protected:
|
|
enum ESynchResult
|
|
{
|
|
SR_OK = 0,
|
|
SR_OUT_OF_STORAGE,
|
|
SR_OUT_OF_INPUT,
|
|
SR_OUT_OF_SYNCH,
|
|
};
|
|
|
|
virtual ESynchResult SynchPoint( const void * data, u32 length ) = 0;
|
|
virtual ESynchResult SynchData( void * data, u32 length ) = 0;
|
|
virtual void ResetData() = 0;
|
|
|
|
public:
|
|
static bool InitialiseSynchroniser();
|
|
static CSynchroniser * CreateProducer( const char * filename );
|
|
static CSynchroniser * CreateConsumer( const char * filename );
|
|
|
|
static void Destroy();
|
|
|
|
// Either write or read some data to/from the data stream
|
|
template < typename T > static void SynchData( T & data )
|
|
{
|
|
if( mpSynchroniser != NULL )
|
|
{
|
|
switch( mpSynchroniser->SynchData( &data, sizeof( T ) ) )
|
|
{
|
|
case SR_OK: return;
|
|
case SR_OUT_OF_STORAGE: HandleOutOfStorage(); return;
|
|
case SR_OUT_OF_INPUT: HandleOutOfInput(); return;
|
|
case SR_OUT_OF_SYNCH: DAEDALUS_ERROR( "Shouldn't ever be out of synch?" ); return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check that the data is in synch at this point
|
|
template < typename T > static void SynchPoint( const T & data, const char * msg )
|
|
{
|
|
if ( mpSynchroniser != NULL )
|
|
{
|
|
switch ( mpSynchroniser->SynchPoint( &data, sizeof( T ) ) )
|
|
{
|
|
case SR_OK: return;
|
|
case SR_OUT_OF_STORAGE: HandleOutOfStorage(); return;
|
|
case SR_OUT_OF_INPUT: HandleOutOfInput(); return;
|
|
case SR_OUT_OF_SYNCH: HandleOutOfSynch( msg ); return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void Reset()
|
|
{
|
|
if ( mpSynchroniser != NULL )
|
|
{
|
|
mpSynchroniser->ResetData();
|
|
}
|
|
}
|
|
|
|
static void HandleOutOfStorage();
|
|
static void HandleOutOfInput();
|
|
static void HandleOutOfSynch( const char * msg );
|
|
|
|
private:
|
|
static CSynchroniser * mpSynchroniser;
|
|
};
|
|
|
|
|
|
#define SYNCH_POINT( flags, x, msg ) if ( DAED_SYNC_MASK & (flags) ) CSynchroniser::SynchPoint( x, msg )
|
|
#define SYNCH_DATA( x ) CSynchroniser::SynchData( x )
|
|
|
|
#else
|
|
|
|
#define SYNCH_POINT( flags, x, msg )
|
|
#define SYNCH_DATA( x )
|
|
|
|
#endif
|
|
|
|
|
|
#endif // UTILITY_SYNCHRONISER_H_
|