/*
 * Copyright (C) 2012 Linux Test Project, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Further, this software is distributed without any warranty that it
 * is free of the rightful claim of any third person regarding
 * infringement or the like.  Any license provided herein, whether
 * implied or otherwise, applies only to this software file.  Patent
 * licenses, if any, provided herein do not apply to combinations of
 * this program with other software, or any other product whatsoever.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#ifndef _PROCESS_VM_H_
#define _PROCESS_VM_H_

#include <sys/syscall.h>
#include <sys/uio.h>
#include <unistd.h>

#define CMA_PARAMS pid, lvec, liovcnt, rvec, riovcnt, flags
#define CMA_PARAMS_TYPES pid_t pid, const struct iovec *lvec, unsigned long liovcnt,\
        const struct iovec *rvec, unsigned long riovcnt, unsigned long flags
#define CMA_FUNC_PROTO(func_name) ssize_t func_name(CMA_PARAMS_TYPES)
#define CMA_FUNCP_PROTO(func_name) ssize_t (*func_name)(CMA_PARAMS_TYPES)

/* 
 * process_vm_readv 
 */
#if (HAVE_PROCESS_VM_READV==1)
static inline CMA_FUNC_PROTO(ltp_process_vm_readv)
{
    return process_vm_readv(CMA_PARAMS);
}
#elif defined(__NR_process_vm_readv)
static inline CMA_FUNC_PROTO(ltp_process_vm_readv)
{
    return syscall(__NR_process_vm_readv, CMA_PARAMS);
}
#else
CMA_FUNCP_PROTO(ltp_process_vm_readv) = NULL;
#endif

/* 
 * process_vm_writev 
 */
#if (HAVE_PROCESS_VM_WRITEV==1)
static inline CMA_FUNC_PROTO(ltp_process_vm_writev)
{
    return process_vm_writev(CMA_PARAMS);
}
#elif defined(__NR_process_vm_writev)
static inline CMA_FUNC_PROTO(ltp_process_vm_writev)
{
    return syscall(__NR_process_vm_writev, CMA_PARAMS);
}
#else
CMA_FUNCP_PROTO(ltp_process_vm_writev) = NULL;
#endif

#endif /* _PROCESS_VM_H_ */