int mca_sharedfp_sm_iwrite(mca_io_ompio_file_t *fh, const void *buf, int count, ompi_datatype_t *datatype, MPI_Request * request) { int ret = OMPI_SUCCESS; OMPI_MPI_OFFSET_TYPE offset = 0; long bytesRequested = 0; size_t numofBytes; struct mca_sharedfp_base_data_t *sh = NULL; mca_sharedfp_base_module_t * shared_fp_base_module = NULL; if( NULL == fh->f_sharedfp_data){ if ( mca_sharedfp_sm_verbose ) { opal_output(ompi_sharedfp_base_framework.framework_output, "sharedfp_sm_iwrite - opening the shared file pointer\n"); } shared_fp_base_module = fh->f_sharedfp; ret = shared_fp_base_module->sharedfp_file_open(fh->f_comm, fh->f_filename, fh->f_amode, fh->f_info, fh); if ( OMPI_SUCCESS != ret ) { opal_output(0,"sharedfp_sm_iwrite - error opening the shared file pointer\n"); return ret; } } /* Calculate the number of bytes to write */ opal_datatype_type_size ( &datatype->super, &numofBytes); bytesRequested = count * numofBytes; /* Retrieve the shared file data struct */ sh = fh->f_sharedfp_data; if ( mca_sharedfp_sm_verbose ) { opal_output(ompi_sharedfp_base_framework.framework_output, "sharedfp_sm_iwrite: Bytes Requested is %ld\n",bytesRequested); } /* Request the offset to write bytesRequested bytes */ ret = mca_sharedfp_sm_request_position(sh,bytesRequested,&offset); offset /= sh->sharedfh->f_etype_size; if ( -1 != ret ) { if ( mca_sharedfp_sm_verbose ) { opal_output(ompi_sharedfp_base_framework.framework_output, "sharedfp_sm_iwrite: Offset received is %lld\n",offset); } /* Write to the file */ ret = ompio_io_ompio_file_iwrite_at(sh->sharedfh,offset,buf,count,datatype,request); } return ret; }
int mca_io_ompio_file_iwrite_at (ompi_file_t *fh, OMPI_MPI_OFFSET_TYPE offset, void *buf, int count, struct ompi_datatype_t *datatype, ompi_request_t **request) { int ret = OMPI_SUCCESS; mca_io_ompio_data_t *data; data = (mca_io_ompio_data_t *) fh->f_io_selected_data; ret = ompio_io_ompio_file_iwrite_at(&data->ompio_fh,offset,buf,count,datatype,request); return ret; }