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// Copyright (c) 2018 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 CONTENT_PUBLIC_BROWSER_GLOBAL_ROUTING_ID_H_
#define CONTENT_PUBLIC_BROWSER_GLOBAL_ROUTING_ID_H_
#include <tuple>
#include "base/hash.h"
#include "ipc/ipc_message.h"
namespace content {
// Uniquely identifies a target that legacy IPCs can be routed to.
struct GlobalRoutingID {
GlobalRoutingID() : child_id(-1), route_id(-1) {}
GlobalRoutingID(int child_id, int route_id)
: child_id(child_id), route_id(route_id) {}
// The unique ID of the child process (this is different from OS's PID / this
// should come from RenderProcessHost::GetID()).
int child_id;
// The route ID.
int route_id;
bool operator<(const GlobalRoutingID& other) const {
return std::tie(child_id, route_id) <
std::tie(other.child_id, other.route_id);
}
bool operator==(const GlobalRoutingID& other) const {
return child_id == other.child_id && route_id == other.route_id;
}
bool operator!=(const GlobalRoutingID& other) const {
return !(*this == other);
}
};
// Same as GlobalRoutingID except the route_id must be a RenderFrameHost routing
// id.
struct GlobalFrameRoutingId {
GlobalFrameRoutingId() : child_id(0), frame_routing_id(MSG_ROUTING_NONE) {}
GlobalFrameRoutingId(int child_id, int frame_routing_id)
: child_id(child_id), frame_routing_id(frame_routing_id) {}
// GlobalFrameRoutingId is copyable.
GlobalFrameRoutingId(const GlobalFrameRoutingId&) = default;
GlobalFrameRoutingId& operator=(const GlobalFrameRoutingId&) = default;
// The unique ID of the child process (this is different from OS's PID / this
// should come from RenderProcessHost::GetID()).
int child_id;
// The route ID of a RenderFrame - should come from
// RenderFrameHost::GetRoutingID().
int frame_routing_id;
bool operator<(const GlobalFrameRoutingId& other) const {
return std::tie(child_id, frame_routing_id) <
std::tie(other.child_id, other.frame_routing_id);
}
bool operator==(const GlobalFrameRoutingId& other) const {
return child_id == other.child_id &&
frame_routing_id == other.frame_routing_id;
}
bool operator!=(const GlobalFrameRoutingId& other) const {
return !(*this == other);
}
};
struct GlobalFrameRoutingIdHasher {
std::size_t operator()(const GlobalFrameRoutingId& id) const {
return base::HashInts(id.child_id, id.frame_routing_id);
}
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_GLOBAL_ROUTING_ID_H_
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