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// 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
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