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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* ad_panfs.h
*
* Copyright (C) 2001 University of Chicago.
* See COPYRIGHT notice in top-level directory.
*/
#ifndef AD_PANFS_INCLUDE
#define AD_PANFS_INCLUDE
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#include "adio.h"
#ifndef NO_AIO
# ifdef AIO_SUN
# include <sys/asynch.h>
# else
#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
# endif
#endif
void ADIOI_PANFS_Open(ADIO_File fd, int *error_code);
/* Panasas 6 introduced some new features */
void ADIOI_PANFS_Open6(ADIO_File fd, int *error_code);
void ADIOI_PANFS_SetInfo(ADIO_File fd, MPI_Info users_info, int *error_code);
void ADIOI_PANFS_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_PANFS_Resize(ADIO_File fd, ADIO_Offset size, int *error_code);
void ADIOI_PANFS_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);
/* TODO: move this to common code and have all routines retry. */
/* TODO: also check for EWOULDBLOCK */
#if defined(NEEDS_USLEEP_DECL)
int usleep(useconds_t usec);
#endif
/* Delay 1 ms */
#define AD_PANFS_RETRY_DELAY 1000
#define AD_PANFS_RETRY(_op_,_rc_) \
{ \
_rc_ = (_op_); \
while(_rc_ == -1 && errno == EAGAIN) \
{ \
if(usleep(AD_PANFS_RETRY_DELAY) == -1) \
{ \
break; \
} \
_rc_ = (_op_); \
} \
}
#endif
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