2 * Copyright (c) 2019 Samsung Electronics Co., Ltd.
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.
18 #include <dali/internal/adaptor-framework/common/file-stream-impl.h>
24 #include <dali/integration-api/debug.h>
29 FileStream::Impl::Impl(const std::string& filename, uint8_t mode)
30 : mFileName( filename ),
36 DALI_ASSERT_DEBUG( !filename.empty() && "Can't open a empty filename." );
37 DALI_ASSERT_DEBUG( mode != 0 && "No mode is undefined behaviour" );
40 FileStream::Impl::Impl(uint8_t* buffer, size_t dataSize, uint8_t mode)
43 mDataSize( dataSize ),
46 DALI_ASSERT_DEBUG( buffer != 0 && "Can't open file on null buffer." );
47 DALI_ASSERT_DEBUG( dataSize > 0 && "Pointless to open file on empty buffer." );
48 DALI_ASSERT_DEBUG( mode != 0 && "No mode is undefined behaviour." );
51 FileStream::Impl::Impl(Dali::Vector<uint8_t>& vector, size_t dataSize, uint8_t mode)
54 mDataSize( dataSize ),
57 // Resize the buffer to ensure any null that gets written by
58 // fmemopen is written past the end of any data that is written to the buffer.
59 // (Workaround for a bug in Ubuntu that overwrites null to the last byte of the
60 // data block regardless of whether binary mode was specified. Tizen doesn't write
61 // null if binary mode is specified).
64 vector.Resize( mDataSize );
67 DALI_ASSERT_DEBUG( mBuffer != nullptr && "Can't open file on null buffer." );
68 DALI_ASSERT_DEBUG( dataSize > 0 && "Pointless to open file on empty buffer." );
69 DALI_ASSERT_DEBUG( mode != 0 && "No mode is undefined behaviour." );
72 FileStream::Impl::~Impl()
76 const int closeFailed = fclose( mFile );
79 DALI_LOG_WARNING( "File close failed for FILE: \"%p\".\n", static_cast<void*>( mFile ) );
85 if( mFileStream.is_open() )
91 std::iostream& FileStream::Impl::GetStream()
95 // return empty stream if FILE stream is open to avoid simultaneous access to the same file
99 if( mFileStream.is_open() )
104 if( mBufferStream.rdbuf()->in_avail() )
106 return mBufferStream;
109 std::ios_base::openmode openMode = std::ios::ate;
110 if( mMode & Dali::FileStream::BINARY )
112 openMode |= std::ios::binary;
115 if( mMode & Dali::FileStream::WRITE )
117 openMode |= std::ios::out;
121 openMode |= std::ios::in;
124 if( !mFileName.empty() )
126 mFileStream.open( mFileName, openMode );
127 if( !mFileStream.is_open() )
129 DALI_LOG_WARNING( "stream open failed for: \"%s\", in mode: \"%d\".\n", mFileName, static_cast<int>( openMode ) );
135 mBufferStream.rdbuf()->pubsetbuf( reinterpret_cast<char*>( mBuffer ), mDataSize );
136 if( !mBufferStream.rdbuf()->in_avail() )
138 DALI_LOG_WARNING( "File open failed for memory buffer at location: \"%p\", of size: \"%u\", in mode: \"%d\".\n",
139 static_cast<void*>( mBuffer ), static_cast<unsigned>( mDataSize ), static_cast<int>( openMode ) );
143 return mBufferStream;
146 FILE* FileStream::Impl::GetFile()
148 if( mFileStream.is_open() || mBufferStream.rdbuf()->in_avail() )
150 // return empty FILE stream if the stream is open to avoid simultaneous access to the same file
159 char openMode[16] = { 0 };
162 if( mMode & Dali::FileStream::WRITE )
171 if( mMode & Dali::FileStream::BINARY )
178 if( !mFileName.empty() )
180 mFile = fopen( mFileName.c_str(), openMode );
183 DALI_LOG_WARNING( "file open failed for: \"%s\", in mode: \"%s\".\n", mFileName, openMode );
188 mFile = fmemopen( mBuffer, mDataSize, openMode );
191 DALI_LOG_WARNING( "File open failed for memory buffer at location: \"%p\", of size: \"%u\", in mode: \"%s\".\n",
192 static_cast<void*>( mBuffer ), static_cast<unsigned>( mDataSize ), openMode );