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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "MemoryReportRequest.h"
#include "mozilla/ipc/FileDescriptor.h"
#include "mozilla/ipc/FileDescriptorUtils.h"
#include "nsMemoryReporterManager.h"
using namespace mozilla::ipc;
namespace mozilla::dom {
MemoryReportRequestHost::MemoryReportRequestHost(uint32_t aGeneration)
: mGeneration(aGeneration), mSuccess(false) {
MOZ_COUNT_CTOR(MemoryReportRequestHost);
mReporterManager = nsMemoryReporterManager::GetOrCreate();
NS_WARNING_ASSERTION(mReporterManager, "GetOrCreate failed");
}
void MemoryReportRequestHost::RecvReport(const MemoryReport& aReport) {
// Skip reports from older generations. We need to do this here since we
// could receive older reports from a subprocesses before it acknowledges
// a new request, and we only track one active request per process.
if (aReport.generation() != mGeneration) {
return;
}
if (mReporterManager) {
mReporterManager->HandleChildReport(mGeneration, aReport);
}
}
void MemoryReportRequestHost::Finish(uint32_t aGeneration) {
// Skip reports from older generations. See the comment in RecvReport.
if (mGeneration != aGeneration) {
return;
}
mSuccess = true;
}
MemoryReportRequestHost::~MemoryReportRequestHost() {
MOZ_COUNT_DTOR(MemoryReportRequestHost);
if (mReporterManager) {
mReporterManager->EndProcessReport(mGeneration, mSuccess);
mReporterManager = nullptr;
}
}
NS_IMPL_ISUPPORTS(MemoryReportRequestClient, nsIRunnable)
/* static */ void MemoryReportRequestClient::Start(
uint32_t aGeneration, bool aAnonymize, bool aMinimizeMemoryUsage,
const Maybe<FileDescriptor>& aDMDFile, const nsACString& aProcessString,
const ReportCallback& aReportCallback,
const FinishCallback& aFinishCallback) {
RefPtr<MemoryReportRequestClient> request = new MemoryReportRequestClient(
aGeneration, aAnonymize, aDMDFile, aProcessString, aReportCallback,
aFinishCallback);
DebugOnly<nsresult> rv;
if (aMinimizeMemoryUsage) {
nsCOMPtr<nsIMemoryReporterManager> mgr =
do_GetService("@mozilla.org/memory-reporter-manager;1");
rv = mgr->MinimizeMemoryUsage(request);
// mgr will eventually call actor->Run()
} else {
rv = request->Run();
}
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "actor operation failed");
}
MemoryReportRequestClient::MemoryReportRequestClient(
uint32_t aGeneration, bool aAnonymize,
const Maybe<FileDescriptor>& aDMDFile, const nsACString& aProcessString,
const ReportCallback& aReportCallback,
const FinishCallback& aFinishCallback)
: mGeneration(aGeneration),
mAnonymize(aAnonymize),
mProcessString(aProcessString),
mReportCallback(aReportCallback),
mFinishCallback(aFinishCallback) {
if (aDMDFile.isSome()) {
mDMDFile = aDMDFile.value();
}
}
MemoryReportRequestClient::~MemoryReportRequestClient() = default;
class HandleReportCallback final : public nsIHandleReportCallback {
public:
using ReportCallback = typename MemoryReportRequestClient::ReportCallback;
NS_DECL_ISUPPORTS
explicit HandleReportCallback(uint32_t aGeneration,
const nsACString& aProcess,
const ReportCallback& aReportCallback)
: mGeneration(aGeneration),
mProcess(aProcess),
mReportCallback(aReportCallback) {}
NS_IMETHOD Callback(const nsACString& aProcess, const nsACString& aPath,
int32_t aKind, int32_t aUnits, int64_t aAmount,
const nsACString& aDescription,
nsISupports* aUnused) override {
MemoryReport memreport(mProcess, nsCString(aPath), aKind, aUnits, aAmount,
mGeneration, nsCString(aDescription));
mReportCallback(memreport);
return NS_OK;
}
private:
~HandleReportCallback() = default;
uint32_t mGeneration;
const nsCString mProcess;
ReportCallback mReportCallback;
};
NS_IMPL_ISUPPORTS(HandleReportCallback, nsIHandleReportCallback)
class FinishReportingCallback final : public nsIFinishReportingCallback {
public:
using FinishCallback = typename MemoryReportRequestClient::FinishCallback;
NS_DECL_ISUPPORTS
explicit FinishReportingCallback(uint32_t aGeneration,
const FinishCallback& aFinishCallback)
: mGeneration(aGeneration), mFinishCallback(aFinishCallback) {}
NS_IMETHOD Callback(nsISupports* aUnused) override {
mFinishCallback(mGeneration);
return NS_OK;
}
private:
~FinishReportingCallback() = default;
uint32_t mGeneration;
FinishCallback mFinishCallback;
};
NS_IMPL_ISUPPORTS(FinishReportingCallback, nsIFinishReportingCallback)
NS_IMETHODIMP MemoryReportRequestClient::Run() {
nsCOMPtr<nsIMemoryReporterManager> mgr =
do_GetService("@mozilla.org/memory-reporter-manager;1");
// Run the reporters. The callback will turn each measurement into a
// MemoryReport.
RefPtr<HandleReportCallback> handleReport =
new HandleReportCallback(mGeneration, mProcessString, mReportCallback);
RefPtr<FinishReportingCallback> finishReporting =
new FinishReportingCallback(mGeneration, mFinishCallback);
nsresult rv = mgr->GetReportsForThisProcessExtended(
handleReport, nullptr, mAnonymize, FileDescriptorToFILE(mDMDFile, "wb"),
finishReporting, nullptr);
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
"GetReportsForThisProcessExtended failed");
return rv;
}
} // namespace mozilla::dom
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