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/*********************************************************
* Copyright (C) 2005 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no 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 Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* syncDriver.h --
*
* Interface to the Sync Driver.
*/
#ifndef _SYNC_DRIVER_H_
#define _SYNC_DRIVER_H_
#include "vm_basic_types.h"
/*
* SyncDriverHandle is a different thing depending on the platform we're
* running: on Windows it's a thread handle, used to monitor the status
* of the thread used to asynchronously freeze devices. On POSIX systems,
* it's a file descriptor, used to send commands to the driver via ioctls.
*/
#ifdef _WIN32 /* { */
# include <windows.h>
# define SYNCDRIVER_INVALID_HANDLE INVALID_HANDLE_VALUE
typedef HANDLE SyncDriverHandle;
#else /* }{ POSIX */
# define INFINITE -1
# define SYNCDRIVER_INVALID_HANDLE -1
typedef int SyncDriverHandle;
#endif /* } */
typedef enum {
SYNCDRIVER_IDLE,
SYNCDRIVER_BUSY,
SYNCDRIVER_ERROR
} SyncDriverStatus;
Bool SyncDriver_Init(void);
Bool SyncDriver_Freeze(const char *drives, SyncDriverHandle *handle);
Bool SyncDriver_Thaw(const SyncDriverHandle handle);
Bool SyncDriver_DrivesAreFrozen(void);
SyncDriverStatus SyncDriver_QueryStatus(const SyncDriverHandle handle,
int32 timeout);
void SyncDriver_CloseHandle(SyncDriverHandle *handle);
#endif
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