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>
41 SharedFile* SharedFile::New(const char* filename, int size, bool isSystem)
43 SharedFile *sf = NULL;
47 bool opened = sf->OpenFile( filename, size, isSystem );
56 SharedFile::SharedFile()
57 : mFileDescriptor(-1),
64 SharedFile::~SharedFile()
69 void SharedFile::Close()
71 if( mAddress != NULL )
73 munmap( mAddress, mSize );
77 if( mFileDescriptor >= 0 )
79 close( mFileDescriptor );
84 unsigned char* SharedFile::GetAddress()
86 return static_cast<unsigned char *>( mAddress );
89 bool SharedFile::OpenFile(const char* filename, int size, bool isSystem)
94 mode = S_IRUSR | S_IWUSR;
97 mode |= S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
100 mFileDescriptor = shm_open( filename, O_RDONLY, mode );
102 if( mFileDescriptor >= 0 )
104 mFilename = filename;
107 mAddress = mmap( NULL, mSize, PROT_READ, MAP_SHARED, mFileDescriptor, 0 );
109 if( mAddress != MAP_FAILED )