martinzink commented on code in PR #2186: URL: https://github.com/apache/nifi-minifi-cpp/pull/2186#discussion_r3654705035
########## minifi_rust/minifi_native/src/c_ffi/c_ffi_process_session.rs: ########## @@ -0,0 +1,580 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// https://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +use super::c_ffi_flow_file::CffiFlowFile; +use crate::MinifiError; +use crate::api::process_session::{IoState, OutputStream}; +use crate::api::{InputStream, ProcessSession}; +use crate::c_ffi::c_ffi_primitives::{ConvertMinifiStringView, StringView}; +use crate::c_ffi::c_ffi_streams::{CffiInputStream, CffiOutputStream}; +use minifi_native_sys::{ + minifi_input_stream, minifi_input_stream_read, minifi_input_stream_size, + minifi_io_status_MINIFI_IO_CANCEL, minifi_io_status_MINIFI_IO_ERROR, minifi_output_stream, + minifi_output_stream_write, minifi_process_session, minifi_process_session_create, + minifi_process_session_get, minifi_process_session_get_flow_file_attribute, + minifi_process_session_get_flow_file_attributes, minifi_process_session_get_flow_file_id, + minifi_process_session_read, minifi_process_session_remove, + minifi_process_session_set_flow_file_attribute, minifi_process_session_transfer, + minifi_process_session_write, minifi_status_MINIFI_STATUS_SUCCESS, minifi_string_view, +}; +use std::ffi::{CString, c_void}; +use std::io::Read; +use std::num::NonZeroU32; +use std::os::raw::c_char; + +const _: () = { + if minifi_status_MINIFI_STATUS_SUCCESS != 0 { + panic!("minifi_status_MINIFI_STATUS_SUCCESS expected to be 0"); + } +}; + +unsafe fn write_all_to_output_stream( + output_stream: *mut minifi_output_stream, + data: &[u8], +) -> Result<i64, i64> { + let mut offset = 0; + while offset < data.len() { + let remaining = data.len() - offset; + let written = unsafe { + minifi_output_stream_write( + output_stream, + data.as_ptr().add(offset) as *const c_char, + remaining, + ) + }; + if written < 0 { + return Err(written); + } + if written == 0 { + return Err(minifi_io_status_MINIFI_IO_ERROR); // To avoid spinning, but not sure about it + } + let written_usize = written as usize; + if written_usize > remaining { + return Err(minifi_io_status_MINIFI_IO_ERROR); + } Review Comment: https://github.com/apache/nifi-minifi-cpp/pull/2186/changes/6bd47c8d6de571003ab57eb6f123b6ffd17c9c9b#diff-f7280f037c756b7c91ee34b1cb0bd0e134e7ae053242a7146439227742513f95R66 ########## minifi_rust/minifi_native/src/c_ffi/c_ffi_process_session.rs: ########## @@ -0,0 +1,580 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// https://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +use super::c_ffi_flow_file::CffiFlowFile; +use crate::MinifiError; +use crate::api::process_session::{IoState, OutputStream}; +use crate::api::{InputStream, ProcessSession}; +use crate::c_ffi::c_ffi_primitives::{ConvertMinifiStringView, StringView}; +use crate::c_ffi::c_ffi_streams::{CffiInputStream, CffiOutputStream}; +use minifi_native_sys::{ + minifi_input_stream, minifi_input_stream_read, minifi_input_stream_size, + minifi_io_status_MINIFI_IO_CANCEL, minifi_io_status_MINIFI_IO_ERROR, minifi_output_stream, + minifi_output_stream_write, minifi_process_session, minifi_process_session_create, + minifi_process_session_get, minifi_process_session_get_flow_file_attribute, + minifi_process_session_get_flow_file_attributes, minifi_process_session_get_flow_file_id, + minifi_process_session_read, minifi_process_session_remove, + minifi_process_session_set_flow_file_attribute, minifi_process_session_transfer, + minifi_process_session_write, minifi_status_MINIFI_STATUS_SUCCESS, minifi_string_view, +}; +use std::ffi::{CString, c_void}; +use std::io::Read; +use std::num::NonZeroU32; +use std::os::raw::c_char; + +const _: () = { + if minifi_status_MINIFI_STATUS_SUCCESS != 0 { + panic!("minifi_status_MINIFI_STATUS_SUCCESS expected to be 0"); + } +}; + +unsafe fn write_all_to_output_stream( + output_stream: *mut minifi_output_stream, + data: &[u8], +) -> Result<i64, i64> { + let mut offset = 0; + while offset < data.len() { + let remaining = data.len() - offset; + let written = unsafe { + minifi_output_stream_write( + output_stream, + data.as_ptr().add(offset) as *const c_char, + remaining, + ) + }; + if written < 0 { + return Err(written); + } + if written == 0 { + return Err(minifi_io_status_MINIFI_IO_ERROR); // To avoid spinning, but not sure about it + } Review Comment: https://github.com/apache/nifi-minifi-cpp/pull/2186/changes/6bd47c8d6de571003ab57eb6f123b6ffd17c9c9b#diff-f7280f037c756b7c91ee34b1cb0bd0e134e7ae053242a7146439227742513f95R63 -- This is an automated message from the Apache Git Service. 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