2 * Copyright (c) 2014 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.
19 #include "shared-file.h"
22 #include <sys/types.h>
42 SharedFile* SharedFile::New(const char* filename, int size, bool isSystem)
44 SharedFile *sf = NULL;
48 bool opened = sf->OpenFile( filename, size, isSystem );
57 SharedFile::SharedFile()
58 : mFileDescriptor(-1),
65 SharedFile::~SharedFile()
70 void SharedFile::Close()
72 if( mAddress != NULL )
74 munmap( mAddress, mSize );
78 if( mFileDescriptor >= 0 )
80 close( mFileDescriptor );
85 unsigned char* SharedFile::GetAddress()
87 return static_cast<unsigned char *>( mAddress );
90 bool SharedFile::OpenFile(const char* filename, int size, bool isSystem)
95 mode = S_IRUSR | S_IWUSR;
98 mode |= S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
101 mFileDescriptor = shm_open( filename, O_RDWR, mode );
103 if( mFileDescriptor >= 0 )
105 mFilename = filename;
108 mAddress = mmap( NULL, mSize, PROT_READ | PROT_WRITE, MAP_SHARED, mFileDescriptor, 0 );
110 if( mAddress != MAP_FAILED )