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/*
* Copyright (C) 2025 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "WasmDebuggerDebuggable.h"
#if ENABLE(REMOTE_INSPECTOR) && ENABLE(WEBASSEMBLY)
#include "WebProcessProxy.h"
#include "WebProcessProxyMessages.h"
#include <JavaScriptCore/InspectorFrontendChannel.h>
#include <JavaScriptCore/RemoteInspector.h>
#include <wtf/MainThread.h>
#include <wtf/TZoneMallocInlines.h>
#include <wtf/text/MakeString.h>
namespace WebKit {
using namespace Inspector;
WTF_MAKE_TZONE_ALLOCATED_IMPL(WasmDebuggerDebuggable);
Ref<WasmDebuggerDebuggable> WasmDebuggerDebuggable::create(WebProcessProxy& process)
{
return adoptRef(*new WasmDebuggerDebuggable(process));
}
WasmDebuggerDebuggable::WasmDebuggerDebuggable(WebProcessProxy& process)
: m_process(process)
{
}
void WasmDebuggerDebuggable::detachFromProcess()
{
m_process = nullptr;
}
WasmDebuggerDebuggable::~WasmDebuggerDebuggable() = default;
std::optional<ProcessID> WasmDebuggerDebuggable::webContentProcessPID() const
{
RefPtr process = m_process.get();
if (!process)
return std::nullopt;
// When WasmDebuggerDebuggable is created, the WebContent process is guaranteed to have
// finished launching (see didFinishLaunching -> createWasmDebuggerTarget).
// Therefore, processID() must return a valid non-zero PID.
auto pid = process->processID();
RELEASE_ASSERT(pid);
return pid;
}
String WasmDebuggerDebuggable::name() const
{
RefPtr process = m_process.get();
if (!process)
return "WebAssembly Debugger"_s;
// When process exists, PID must be valid (see webContentProcessPID() and lifetime_proof.md)
auto pid = process->processID();
RELEASE_ASSERT(pid);
return makeString("WebAssembly Debugger (WebContent PID "_s, pid, ")"_s);
}
String WasmDebuggerDebuggable::url() const
{
// For WebAssembly debugging, url() and name() should be the same
// to avoid confusion about different identifiers
return name();
}
bool WasmDebuggerDebuggable::hasLocalDebugger() const
{
return false;
}
void WasmDebuggerDebuggable::connect(FrontendChannel& channel, bool isAutomaticConnection, bool immediatelyPause)
{
m_frontendChannel = &channel;
callOnMainRunLoopAndWait([this, protectedThis = Ref { *this }, isAutomaticConnection, immediatelyPause] {
RefPtr process = m_process.get();
if (!process)
return;
// Send IPC message to WebContent process to connect WebAssembly target
process->connectWasmDebuggerTarget(isAutomaticConnection, immediatelyPause);
});
}
void WasmDebuggerDebuggable::disconnect(FrontendChannel& channel)
{
m_frontendChannel = nullptr;
callOnMainRunLoopAndWait([this, protectedThis = Ref { *this }] {
RefPtr process = m_process.get();
if (!process)
return;
// Send IPC message to WebContent process to disconnect WebAssembly target
process->disconnectWasmDebuggerTarget();
});
}
void WasmDebuggerDebuggable::dispatchMessageFromRemote(String&& message)
{
callOnMainRunLoopAndWait([this, protectedThis = Ref { *this }, message = WTFMove(message).isolatedCopy()]() mutable {
RefPtr process = m_process.get();
if (!process)
return;
// Forward message to WebContent process via IPC
process->dispatchWasmDebuggerMessage(WTFMove(message));
});
}
void WasmDebuggerDebuggable::setIndicating(bool indicating)
{
callOnMainRunLoopAndWait([this, protectedThis = Ref { *this }, indicating] {
RefPtr process = m_process.get();
if (!process)
return;
// Send IPC message to WebContent process to set indicating state
process->setWasmDebuggerTargetIndicating(indicating);
});
}
void WasmDebuggerDebuggable::setNameOverride(const String& name)
{
m_nameOverride = name;
update();
}
void WasmDebuggerDebuggable::sendResponseToFrontend(const String& response)
{
if (!m_frontendChannel)
return;
// Forward WebAssembly debugging response to the connected RWI frontend
m_frontendChannel->sendMessageToFrontend(response);
}
} // namespace WebKit
#endif // ENABLE(REMOTE_INSPECTOR) && ENABLE(WEBASSEMBLY)
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