/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
 *   Copyright (C) 1997 University of Chicago.
 *   See COPYRIGHT notice in top-level directory.
 *
 *   Copyright (C) 2007 Oak Ridge National Laboratory
 *
 *   Copyright (C) 2008 Sun Microsystems, Lustre group
 */

#ifndef AD_UNIX_INCLUDE
#define AD_UNIX_INCLUDE

/* temp*/
#define HAVE_ASM_TYPES_H 1

#include <unistd.h>
#include <linux/types.h>

#ifdef __linux__
#  include <sys/ioctl.h>                            /* necessary for: */
#  include <time.h>
#  define __USE_GNU                                 /* O_DIRECT and */
#  include <fcntl.h>                                /* IO operations */
#  undef __USE_GNU
#endif /* __linux__ */

/*#include <fcntl.h>*/
#include <sys/ioctl.h>
#include <lustre/lustre_user.h>
#include "adio.h"
/*#include "adioi.h"*/

#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif

#ifdef HAVE_AIO_LITE_H
#include <aio-lite.h>
#else
 #ifdef  HAVE_AIO_H
 #include <aio.h>
 #endif
 #ifdef HAVE_SYS_AIO_H
 #include <sys/aio.h>
 #endif
#endif /* End of HAVE_AIO_LITE_H */

void ADIOI_LUSTRE_Open(ADIO_File fd, int *error_code);
void ADIOI_LUSTRE_Close(ADIO_File fd, int *error_code);
void ADIOI_LUSTRE_ReadContig(ADIO_File fd, void *buf, int count,
                             MPI_Datatype datatype, int file_ptr_type,
                             ADIO_Offset offset, ADIO_Status *status,
                             int *error_code);
void ADIOI_LUSTRE_WriteContig(ADIO_File fd, const void *buf, int count,
                              MPI_Datatype datatype, int file_ptr_type,
                              ADIO_Offset offset, ADIO_Status *status,
                              int *error_code);
void ADIOI_LUSTRE_WriteStrided(ADIO_File fd, const void *buf, int count,
			       MPI_Datatype datatype, int file_ptr_type,
			       ADIO_Offset offset, ADIO_Status *status,
			       int *error_code);
void ADIOI_LUSTRE_WriteStridedColl(ADIO_File fd, const void *buf, int count,
		                   MPI_Datatype datatype, int file_ptr_type,
		                   ADIO_Offset offset, ADIO_Status *status,
                                   int *error_code);
void ADIOI_LUSTRE_ReadStridedColl(ADIO_File fd, void *buf, int count,
		                  MPI_Datatype datatype, int file_ptr_type,
		                  ADIO_Offset offset, ADIO_Status *status,
                                  int *error_code);
void ADIOI_LUSTRE_ReadStrided(ADIO_File fd, void *buf, int count,
			      MPI_Datatype datatype, int file_ptr_type,
			      ADIO_Offset offset, ADIO_Status *status,
                              int *error_code);
void ADIOI_LUSTRE_Fcntl(ADIO_File fd, int flag, ADIO_Fcntl_t *fcntl_struct,
	               int *error_code);
void ADIOI_LUSTRE_SetInfo(ADIO_File fd, MPI_Info users_info, int *error_code);

/* the lustre utilities: */
int ADIOI_LUSTRE_Docollect(ADIO_File fd, int contig_access_count,
			   ADIO_Offset *len_list, int nprocs);

void ADIOI_LUSTRE_Get_striping_info(ADIO_File fd, int **striping_info_ptr,
				    int mode);
void ADIOI_LUSTRE_Calc_my_req(ADIO_File fd, ADIO_Offset *offset_list,
			      ADIO_Offset *len_list, int contig_access_count,
			      int *striping_info, int nprocs,
                              int *count_my_req_procs_ptr,
			      int **count_my_req_per_proc_ptr,
			      ADIOI_Access **my_req_ptr,
			      int ***buf_idx_ptr);

int ADIOI_LUSTRE_Calc_aggregator(ADIO_File fd, ADIO_Offset off,
                                 ADIO_Offset *len, int *striping_info);
#endif /* End of AD_UNIX_INCLUDE */