2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 * @file named_output_pipe.cpp
18 * @author Przemyslaw Dobrowolski (p.dobrowolsk@samsung.com)
20 * @brief This file is the implementation file of named output pipe
23 #include <dpl/named_output_pipe.h>
24 #include <dpl/binary_queue.h>
25 #include <dpl/free_deleter.h>
27 #include <sys/types.h>
34 NamedOutputPipe::NamedOutputPipe() :
38 NamedOutputPipe::~NamedOutputPipe()
43 void NamedOutputPipe::Open(const std::string& pipeName)
45 // Then open it for reading or writing
46 int fifo = TEMP_FAILURE_RETRY(open(pipeName.c_str(), O_WRONLY | O_NONBLOCK));
49 ThrowMsg(Exception::OpenFailed, pipeName);
55 void NamedOutputPipe::Close()
61 if (TEMP_FAILURE_RETRY(close(m_fifo)) == -1) {
62 Throw(Exception::CloseFailed);
68 size_t NamedOutputPipe::Write(const BinaryQueue &buffer, size_t bufferSize)
71 if (bufferSize > buffer.Size()) {
72 bufferSize = buffer.Size();
75 // FIXME: User write visitor to write !
76 // WriteVisitor visitor
78 std::unique_ptr<void,free_deleter> flattened(malloc(bufferSize));
79 buffer.Flatten(flattened.get(), bufferSize);
82 TEMP_FAILURE_RETRY(write(m_fifo, flattened.get(), bufferSize));
85 // Successfuly written some bytes
86 return static_cast<size_t>(result);
87 } else if (result == 0) {
88 // This is abnormal result
89 ThrowMsg(CommonException::InternalError,
90 "Invalid socket write result, 0 bytes written");
92 // Interpret error result
93 // FIXME: Handle errno
94 Throw(AbstractOutput::Exception::WriteFailed);
98 int NamedOutputPipe::WaitableWriteHandle() const