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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "mojo/proxy/node_proxy.h"
#include <utility>
#include "base/check.h"
#include "mojo/proxy/portal_proxy.h"
namespace mojo_proxy {
NodeProxy::NodeProxy(const IpczAPI& ipcz, base::OnceClosure dead_callback)
: ipcz_(ipcz), dead_callback_(std::move(dead_callback)) {}
NodeProxy::~NodeProxy() = default;
void NodeProxy::AddPortalProxy(mojo::core::ScopedIpczHandle portal,
mojo::ScopedMessagePipeHandle pipe) {
auto proxy = std::make_unique<PortalProxy>(ipcz_, *this, std::move(portal),
std::move(pipe));
PortalProxy* proxy_ptr = proxy.get();
auto [it, inserted] = portal_proxies_.insert(std::move(proxy));
CHECK(inserted);
// Safe because there's only one thread operating on this NodeProxy.
// Note that Start() may destroy `proxy_ptr`.
proxy_ptr->Start();
}
void NodeProxy::RemovePortalProxy(PortalProxy* proxy) {
bool dead;
auto it = portal_proxies_.find(proxy);
if (it == portal_proxies_.end()) {
return;
}
// Once the proxy set is empty, it cannot become non-empty again.
portal_proxies_.erase(it);
dead = portal_proxies_.empty();
if (dead) {
// Signaling the death event is the last thing we do on last proxy removal,
// effectively ensuring that no other NodeProxy state will be touched once
// we signal.
std::move(dead_callback_).Run();
}
}
} // namespace mojo_proxy
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