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// Copyright 2015 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.
#ifndef MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_PTR_INFO_H_
#define MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_PTR_INFO_H_
#include <stdint.h>
#include <utility>
#include "base/move.h"
#include "mojo/public/cpp/system/message_pipe.h"
namespace mojo {
// InterfacePtrInfo stores necessary information to communicate with a remote
// interface implementation, which could be used to construct an InterfacePtr.
template <typename Interface>
class InterfacePtrInfo {
MOVE_ONLY_TYPE_FOR_CPP_03(InterfacePtrInfo);
public:
InterfacePtrInfo() : version_(0u) {}
InterfacePtrInfo(ScopedMessagePipeHandle handle, uint32_t version)
: handle_(std::move(handle)), version_(version) {}
InterfacePtrInfo(InterfacePtrInfo&& other)
: handle_(std::move(other.handle_)), version_(other.version_) {
other.version_ = 0u;
}
~InterfacePtrInfo() {}
InterfacePtrInfo& operator=(InterfacePtrInfo&& other) {
if (this != &other) {
handle_ = std::move(other.handle_);
version_ = other.version_;
other.version_ = 0u;
}
return *this;
}
bool is_valid() const { return handle_.is_valid(); }
ScopedMessagePipeHandle PassHandle() { return std::move(handle_); }
const ScopedMessagePipeHandle& handle() const { return handle_; }
void set_handle(ScopedMessagePipeHandle handle) {
handle_ = std::move(handle);
}
uint32_t version() const { return version_; }
void set_version(uint32_t version) { version_ = version; }
private:
ScopedMessagePipeHandle handle_;
uint32_t version_;
};
} // namespace mojo
#endif // MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_PTR_INFO_H_
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