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// Copyright (c) 2014 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/exit_funnel_win.h"
#include <windows.h>
#include <stdint.h>
#include "base/strings/stringprintf.h"
#include "base/time/time.h"
namespace browser_watcher {
ExitFunnel::ExitFunnel() {
}
ExitFunnel::~ExitFunnel() {
}
bool ExitFunnel::Init(const base::char16* registry_path,
base::ProcessHandle process_handle) {
// Concatenate the pid and the creation time of the process to get a
// unique key name.
base::ProcessId pid = base::GetProcId(process_handle);
FILETIME creation_time = {};
FILETIME dummy = {};
if (!::GetProcessTimes(process_handle, &creation_time,
&dummy, &dummy, &dummy)) {
LOG(ERROR) << "Invalid process handle, can't get process times.";
return false;
}
return InitImpl(registry_path, pid, base::Time::FromFileTime(creation_time));
}
bool ExitFunnel::InitImpl(const base::char16* registry_path,
base::ProcessId pid,
base::Time creation_time) {
base::string16 key_name = registry_path;
base::StringAppendF(
&key_name, L"\\%d-%lld", pid, creation_time.ToInternalValue());
LONG res = key_.Create(HKEY_CURRENT_USER, key_name.c_str(), KEY_SET_VALUE);
if (res != ERROR_SUCCESS) {
LOG(ERROR) << "Unable to create key " << key_name << " error " << res;
return false;
}
return true;
}
bool ExitFunnel::RecordEvent(const base::char16* event_name) {
if (!key_.Valid())
return false;
int64_t now = base::Time::Now().ToInternalValue();
LONG res = key_.WriteValue(event_name, &now, sizeof(now), REG_QWORD);
if (res != ERROR_SUCCESS) {
LOG(ERROR) << "Unable to write value " << event_name << " error " << res;
return false;
}
return true;
}
bool ExitFunnel::RecordSingleEvent(const base::char16* registry_path,
const base::char16* event_name) {
ExitFunnel funnel;
if (!funnel.Init(registry_path, base::GetCurrentProcessHandle()))
return false;
return funnel.RecordEvent(event_name);
}
} // namespace browser_watcher
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