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// Copyright 2017 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.
#include "components/browser_watcher/stability_report_user_stream_data_source.h"
#include <string>
#include <utility>
#include <windows.h>
// Must be included after windows.h.
#include <psapi.h>
#include "base/files/file.h"
#include "base/files/file_util.h"
#include "base/metrics/histogram_macros.h"
#include "base/process/memory.h"
#include "base/process/process.h"
#include "base/strings/string16.h"
#include "base/time/time.h"
#include "components/browser_watcher/minidump_user_streams.h"
#include "components/browser_watcher/stability_metrics.h"
#include "components/browser_watcher/stability_paths.h"
#include "components/browser_watcher/stability_report_extractor.h"
#include "third_party/crashpad/crashpad/minidump/minidump_user_extension_stream_data_source.h"
#include "third_party/crashpad/crashpad/snapshot/exception_snapshot.h"
#include "third_party/crashpad/crashpad/snapshot/process_snapshot.h"
namespace browser_watcher {
namespace {
base::FilePath GetStabilityFileName(
const base::FilePath& user_data_dir,
crashpad::ProcessSnapshot* process_snapshot) {
DCHECK(process_snapshot);
timeval creation_time = {};
process_snapshot->ProcessStartTime(&creation_time);
return GetStabilityFileForProcess(process_snapshot->ProcessID(),
creation_time, user_data_dir);
}
class BufferExtensionStreamDataSource final
: public crashpad::MinidumpUserExtensionStreamDataSource {
public:
explicit BufferExtensionStreamDataSource(uint32_t stream_type);
bool Init(const StabilityReport& report);
size_t StreamDataSize() override;
bool ReadStreamData(Delegate* delegate) override;
private:
std::string data_;
DISALLOW_COPY_AND_ASSIGN(BufferExtensionStreamDataSource);
};
BufferExtensionStreamDataSource::BufferExtensionStreamDataSource(
uint32_t stream_type)
: crashpad::MinidumpUserExtensionStreamDataSource(stream_type) {}
bool BufferExtensionStreamDataSource::Init(const StabilityReport& report) {
if (report.SerializeToString(&data_))
return true;
data_.clear();
return false;
}
size_t BufferExtensionStreamDataSource::StreamDataSize() {
DCHECK(!data_.empty());
return data_.size();
}
bool BufferExtensionStreamDataSource::ReadStreamData(Delegate* delegate) {
DCHECK(!data_.empty());
return delegate->ExtensionStreamDataSourceRead(
data_.size() ? data_.data() : nullptr, data_.size());
}
// TODO(manzagop): Collection should factor in whether this is a true crash or
// dump without crashing.
bool CollectStabilityReport(const base::FilePath& path,
StabilityReport* report) {
CollectionStatus status = Extract(path, report);
UMA_HISTOGRAM_ENUMERATION("ActivityTracker.CollectCrash.Status", status,
COLLECTION_STATUS_MAX);
if (status != SUCCESS)
return false;
LogCollectOnCrashEvent(CollectOnCrashEvent::kReportExtractionSuccess);
MarkStabilityFileDeletedOnCrash(path);
return true;
}
void CollectSystemPerformanceMetrics(StabilityReport* report) {
// Grab system commit memory. Also best effort.
PERFORMANCE_INFORMATION perf_info = {sizeof(perf_info)};
if (GetPerformanceInfo(&perf_info, sizeof(perf_info))) {
auto* memory_state =
report->mutable_system_memory_state()->mutable_windows_memory();
memory_state->set_system_commit_limit(perf_info.CommitLimit);
memory_state->set_system_commit_remaining(perf_info.CommitLimit -
perf_info.CommitTotal);
memory_state->set_system_handle_count(perf_info.HandleCount);
}
}
void CollectProcessPerformanceMetrics(
crashpad::ProcessSnapshot* process_snapshot,
StabilityReport* report) {
const crashpad::ExceptionSnapshot* exception = process_snapshot->Exception();
if (!exception)
return;
// Find or create the ProcessState for the process in question.
base::ProcessId pid = process_snapshot->ProcessID();
ProcessState* process_state = nullptr;
for (int i = 0; i < report->process_states_size(); ++i) {
ProcessState* temp = report->mutable_process_states(i);
if (temp->has_process_id() && temp->process_id() == pid) {
process_state = temp;
break;
}
}
if (!process_state) {
process_state = report->add_process_states();
process_state->set_process_id(pid);
}
auto* memory_state =
process_state->mutable_memory_state()->mutable_windows_memory();
// Grab the requested allocation size in case of OOM exception.
if (exception->Exception() == base::win::kOomExceptionCode) {
const auto& codes = exception->Codes();
if (codes.size()) {
// The first parameter, if present, is the size of the allocation attempt.
memory_state->set_process_allocation_attempt(codes[0]);
}
}
base::Process process(base::Process::OpenWithAccess(
pid, PROCESS_QUERY_LIMITED_INFORMATION | PROCESS_VM_READ));
if (process.IsValid()) {
PROCESS_MEMORY_COUNTERS_EX process_memory = {sizeof(process_memory)};
if (::GetProcessMemoryInfo(
process.Handle(),
reinterpret_cast<PROCESS_MEMORY_COUNTERS*>(&process_memory),
sizeof(process_memory))) {
// This is in units of bytes, re-scale to pages for consistency with
// system metrics.
const uint64_t kPageSize = 4096;
memory_state->set_process_private_usage(process_memory.PrivateUsage /
kPageSize);
memory_state->set_process_peak_workingset_size(
process_memory.PeakWorkingSetSize / kPageSize);
memory_state->set_process_peak_pagefile_usage(
process_memory.PeakPagefileUsage / kPageSize);
}
DWORD process_handle_count = 0;
if (::GetProcessHandleCount(process.Handle(), &process_handle_count)) {
memory_state->set_process_handle_count(process_handle_count);
}
}
}
} // namespace
StabilityReportUserStreamDataSource::StabilityReportUserStreamDataSource(
const base::FilePath& user_data_dir)
: user_data_dir_(user_data_dir) {}
std::unique_ptr<crashpad::MinidumpUserExtensionStreamDataSource>
StabilityReportUserStreamDataSource::ProduceStreamData(
crashpad::ProcessSnapshot* process_snapshot) {
DCHECK(process_snapshot);
LogCollectOnCrashEvent(CollectOnCrashEvent::kCollectAttempt);
StabilityReport report;
bool collected_report = false;
if (!user_data_dir_.empty()) {
LogCollectOnCrashEvent(CollectOnCrashEvent::kUserDataDirNotEmpty);
base::FilePath stability_file =
GetStabilityFileName(user_data_dir_, process_snapshot);
if (PathExists(stability_file)) {
LogCollectOnCrashEvent(CollectOnCrashEvent::kPathExists);
collected_report = CollectStabilityReport(stability_file, &report);
}
}
CollectSystemPerformanceMetrics(&report);
CollectProcessPerformanceMetrics(process_snapshot, &report);
std::unique_ptr<BufferExtensionStreamDataSource> source(
new BufferExtensionStreamDataSource(kStabilityReportStreamType));
if (!source->Init(report))
return nullptr;
if (collected_report)
LogCollectOnCrashEvent(CollectOnCrashEvent::kSuccess);
return source;
}
} // namespace browser_watcher
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