dmtcpaware.h

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/***************************************************************************
 *   Copyright (C) 2008 by Jason Ansel                                     *
 *   jansel@ccs.neu.edu                                                    *
 *                                                                         *
 *   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 DMTCPAWARE_H
#define DMTCPAWARE_H

#ifdef __cplusplus
extern "C" {
#endif

#define DMTCP_AFTER_CHECKPOINT 1
#define DMTCP_AFTER_RESTART    2 

#define DMTCP_ERROR_DISABLED -128

typedef void (*DmtcpFunctionPointer)(void);

typedef struct _DmtcpCoordinatorStatus {

  int numProcesses;

  int isRunning;

} DmtcpCoordinatorStatus;

typedef struct _DmtcpLocalStatus {

  int numCheckpoints;

  int numRestarts;

  const char* checkpointFilenameMtcp; 

  const char* checkpointFilenameDmtcp;

  const char* uniquePidStr;

} DmtcpLocalStatus;


int dmtcpIsEnabled();

int dmtcpCheckpoint();

int dmtcpDelayCheckpointsLock();

int dmtcpDelayCheckpointsUnlock();

int dmtcpInstallHooks( DmtcpFunctionPointer preCheckpoint
                      , DmtcpFunctionPointer postCheckpoint
                      , DmtcpFunctionPointer postRestart);

const DmtcpCoordinatorStatus* dmtcpGetCoordinatorStatus();

const DmtcpLocalStatus* dmtcpGetLocalStatus();

int dmtcpRunCommand(char command);

#ifdef __cplusplus
} //extern "C"
#endif

#endif //DMTCPAWARE_H