void ADIOI_PFS_IwriteContig(ADIO_File fd, void *buf, int count, 
                MPI_Datatype datatype, int file_ptr_type,
                ADIO_Offset offset, ADIO_Request *request, int *error_code)  
{
    long *id_sys;
    ADIO_Offset off;
    int len, typesize, err;
    static char myname[] = "ADIOI_PFS_IWRITECONTIG";

    *request = ADIOI_Malloc_request();
    (*request)->optype = ADIOI_WRITE;
    (*request)->fd = fd;
    (*request)->datatype = datatype;

    MPI_Type_size(datatype, &typesize);
    len = count * typesize;

    id_sys = (long *) ADIOI_Malloc(sizeof(long));
    (*request)->handle = (void *) id_sys;

    off = (file_ptr_type == ADIO_INDIVIDUAL) ? fd->fp_ind : offset;

    lseek(fd->fd_sys, off, SEEK_SET);
    *id_sys = _iwrite(fd->fd_sys, buf, len);

    if ((*id_sys == -1) && (errno == EQNOMID)) {
     /* the man pages say EMREQUEST, but in reality errno is set to EQNOMID! */

        /* exceeded the max. no. of outstanding requests. */

        /* complete all previous async. requests */
        ADIOI_Complete_async(error_code);
	if (error_code != MPI_SUCCESS) return;

        /* try again */
	*id_sys = _iwrite(fd->fd_sys, buf, len);

        if ((*id_sys == -1) && (errno == EQNOMID)) {
	    *error_code = MPIO_Err_create_code(MPI_SUCCESS,
					       MPIR_ERR_RECOVERABLE, myname,
					       __LINE__, MPI_ERR_IO, "**io",
					       "**io %s", strerror(errno));
	    return;
        }
    }
    else if (*id_sys == -1) {
	*error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
					   myname, __LINE__, MPI_ERR_IO,
					   "**io",
					   "**io %s", strerror(errno));
	return;
    }

    if (file_ptr_type == ADIO_INDIVIDUAL) fd->fp_ind += len; 

    (*request)->queued = 1;
    (*request)->nbytes = len;
    ADIOI_Add_req_to_list(request);
    fd->async_count++;

    fd->fp_sys_posn = -1;   /* set it to null. */

    if (*id_sys == -1) {
	*error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
					   myname, __LINE__, MPI_ERR_IO,
					   "**io",
					   "**io %s", strerror(errno));
    }
    else *error_code = MPI_SUCCESS;
}
Example #2
0
void ADIOI_PFS_IwriteContig(ADIO_File fd, void *buf, int count, 
                MPI_Datatype datatype, int file_ptr_type,
                ADIO_Offset offset, ADIO_Request *request, int *error_code)  
{
    long *id_sys;
    ADIO_Offset off;
    int len, typesize, err;
#ifndef PRINT_ERR_MSG
    static char myname[] = "ADIOI_PFS_IWRITECONTIG";
#endif

    *request = ADIOI_Malloc_request();
    (*request)->optype = ADIOI_WRITE;
    (*request)->fd = fd;
    (*request)->datatype = datatype;

    MPI_Type_size(datatype, &typesize);
    len = count * typesize;

    id_sys = (long *) ADIOI_Malloc(sizeof(long));
    (*request)->handle = (void *) id_sys;

    off = (file_ptr_type == ADIO_INDIVIDUAL) ? fd->fp_ind : offset;

    lseek(fd->fd_sys, off, SEEK_SET);
    *id_sys = _iwrite(fd->fd_sys, buf, len);

    if ((*id_sys == -1) && (errno == EQNOMID)) {
     /* the man pages say EMREQUEST, but in reality errno is set to EQNOMID! */

        /* exceeded the max. no. of outstanding requests. */

        /* complete all previous async. requests */
        ADIOI_Complete_async(&err);

        /* try again */
	*id_sys = _iwrite(fd->fd_sys, buf, len);

        if ((*id_sys == -1) && (errno == EQNOMID)) {
#ifdef PRINT_ERR_MSG
            FPRINTF(stderr, "Error in asynchronous I/O\n");
            MPI_Abort(MPI_COMM_WORLD, 1);
#else
	    *error_code = MPIR_Err_setmsg(MPI_ERR_IO, MPIR_ADIO_ERROR,
			      myname, "I/O Error", "%s", strerror(errno));
	    ADIOI_Error(fd, *error_code, myname);	    
	    return;
#endif
        }
    }
    else if (*id_sys == -1) {
#ifdef PRINT_ERR_MSG
	FPRINTF(stderr, "Unknown errno %d in ADIOI_PFS_IwriteContig\n", errno);
	MPI_Abort(MPI_COMM_WORLD, 1);
#else
	*error_code = MPIR_Err_setmsg(MPI_ERR_IO, MPIR_ADIO_ERROR,
			         myname, "I/O Error", "%s", strerror(errno));
	ADIOI_Error(fd, *error_code, myname);	    
	return;
#endif
    }

    if (file_ptr_type == ADIO_INDIVIDUAL) fd->fp_ind += len; 

    (*request)->queued = 1;
    (*request)->nbytes = len;
    ADIOI_Add_req_to_list(request);
    fd->async_count++;

    fd->fp_sys_posn = -1;   /* set it to null. */

#ifdef PRINT_ERR_MSG
    *error_code = (*id_sys == -1) ? MPI_ERR_UNKNOWN : MPI_SUCCESS;
#else
    if (*id_sys == -1) {
	*error_code = MPIR_Err_setmsg(MPI_ERR_IO, MPIR_ADIO_ERROR,
			      myname, "I/O Error", "%s", strerror(errno));
	ADIOI_Error(fd, *error_code, myname);	    
    }
    else *error_code = MPI_SUCCESS;
#endif
}