| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/shared_memory.h" |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <sys/mman.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| |
| #include "base/logging.h" |
| |
| namespace base { |
| |
| SharedMemory::SharedMemory() |
| : mapped_file_(-1), |
| mapped_size_(0), |
| inode_(0), |
| memory_(NULL), |
| read_only_(false), |
| created_size_(0) { |
| NOTREACHED(); |
| } |
| |
| SharedMemory::SharedMemory(SharedMemoryHandle handle, bool read_only) |
| : mapped_file_(handle.fd), |
| mapped_size_(0), |
| inode_(0), |
| memory_(NULL), |
| read_only_(read_only), |
| created_size_(0) { |
| NOTREACHED(); |
| } |
| |
| SharedMemory::SharedMemory(SharedMemoryHandle handle, bool read_only, |
| ProcessHandle process) |
| : mapped_file_(handle.fd), |
| mapped_size_(0), |
| inode_(0), |
| memory_(NULL), |
| read_only_(read_only), |
| created_size_(0) { |
| NOTREACHED(); |
| } |
| |
| SharedMemory::~SharedMemory() { |
| } |
| |
| // static |
| bool SharedMemory::IsHandleValid(const SharedMemoryHandle& handle) { |
| NOTREACHED(); |
| return false; |
| } |
| |
| // static |
| SharedMemoryHandle SharedMemory::NULLHandle() { |
| return SharedMemoryHandle(); |
| } |
| |
| // static |
| void SharedMemory::CloseHandle(const SharedMemoryHandle& handle) { |
| } |
| |
| bool SharedMemory::CreateAndMapAnonymous(uint32 size) { |
| return false; |
| } |
| |
| bool SharedMemory::Create(const SharedMemoryCreateOptions& options) { |
| return false; |
| } |
| |
| // Our current implementation of shmem is with mmap()ing of files. |
| // These files need to be deleted explicitly. |
| // In practice this call is only needed for unit tests. |
| bool SharedMemory::Delete(const std::string& name) { |
| return false; |
| } |
| |
| bool SharedMemory::Open(const std::string& name, bool read_only) { |
| return false; |
| } |
| |
| bool SharedMemory::Map(uint32 bytes) { |
| return false; |
| } |
| |
| bool SharedMemory::Unmap() { |
| return false; |
| } |
| |
| SharedMemoryHandle SharedMemory::handle() const { |
| return FileDescriptor(mapped_file_, false); |
| } |
| |
| void SharedMemory::Close() { |
| } |
| |
| void SharedMemory::Lock() { |
| } |
| |
| void SharedMemory::Unlock() { |
| } |
| |
| bool SharedMemory::PrepareMapFile(FILE *fp) { |
| return false; |
| } |
| |
| bool SharedMemory::FilePathForMemoryName(const std::string& mem_name, |
| FilePath* path) { |
| return false; |
| } |
| |
| void SharedMemory::LockOrUnlockCommon(int function) { |
| } |
| |
| bool SharedMemory::ShareToProcessCommon(ProcessHandle process, |
| SharedMemoryHandle *new_handle, |
| bool close_self) { |
| return false; |
| } |
| |
| } // namespace base |