ProcInfoChild.cpp - mozsearch

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/ProcInfoChild.h"

#include "mozilla/ProcInfo.h"

#include "mozilla/ipc/Endpoint.h"

#include "base/process_util.h"

namespace mozilla {

/* static */

void ProcInfoChild::Create(ipc::Endpoint<PProcInfoChild>&& aEndpoint) {

  MOZ_ASSERT(NS_IsMainThread());

  nsCOMPtr<nsISerialEventTarget> taskQueue;

  if (NS_FAILED(NS_CreateBackgroundTaskQueue("ProcInfoChild",

                                             getter_AddRefs(taskQueue)))) {

    NS_WARNING("Failed to create BackgroundTaskQueue for ProcInfoChild");

    return;

  taskQueue->Dispatch(NS_NewRunnableFunction(

      "ProcInfoChild::Bind", [endpoint = std::move(aEndpoint)]() mutable {

        RefPtr<ProcInfoChild> actor = new ProcInfoChild();

        if (!endpoint.Bind(actor)) {

          NS_WARNING("Failed to bind ProcInfoChild");

      }));

mozilla::ipc::IPCResult ProcInfoChild::RecvGetProcInfo(

    GetProcInfoResolver&& aResolver) {

  const base::ProcessId pid = base::GetCurrentProcId();

  nsTArray<ProcInfoRequest> requests;

  requests.EmplaceBack(

      /* aPid = */ pid,

      /* aProcessType = */ ProcType::Unknown,

      /* aOrigin = */ ""_ns,

      /* aWindowInfo = */ nsTArray<WindowInfo>(),

      /* aUtilityInfo = */ nsTArray<UtilityInfo>());

  ProcInfoPromise::ResolveOrRejectValue result =

      GetProcInfoSync(std::move(requests));

  Maybe<RemoteProcInfo> remoteInfo;

  if (result.IsResolve()) {

    if (auto entry = result.ResolveValue().lookup(pid)) {

      ProcInfo& info = entry->value();

      remoteInfo.emplace(info.memory, info.cpuTime, info.cpuCycleCount,

                         std::move(info.threads));

  aResolver(remoteInfo);

  return IPC_OK();

}  // namespace mozilla