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// Copyright (c) 2010 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 "chrome/browser/net/chrome_net_log.h"
#include <algorithm>
#include "base/command_line.h"
#include "base/logging.h"
#include "base/string_util.h"
#include "chrome/browser/browser_thread.h"
#include "chrome/browser/net/load_timing_observer.h"
#include "chrome/browser/net/net_log_logger.h"
#include "chrome/browser/net/passive_log_collector.h"
#include "chrome/common/chrome_switches.h"
ChromeNetLog::Observer::Observer(LogLevel log_level) : log_level_(log_level) {}
net::NetLog::LogLevel ChromeNetLog::Observer::log_level() const {
return log_level_;
}
void ChromeNetLog::Observer::set_log_level(net::NetLog::LogLevel log_level) {
log_level_ = log_level;
}
ChromeNetLog::ChromeNetLog()
: next_id_(1),
passive_collector_(new PassiveLogCollector),
load_timing_observer_(new LoadTimingObserver) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
AddObserver(passive_collector_.get());
AddObserver(load_timing_observer_.get());
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kLogNetLog)) {
net_log_logger_.reset(new NetLogLogger());
AddObserver(net_log_logger_.get());
}
}
ChromeNetLog::~ChromeNetLog() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
RemoveObserver(passive_collector_.get());
RemoveObserver(load_timing_observer_.get());
if (net_log_logger_.get()) {
RemoveObserver(net_log_logger_.get());
}
}
void ChromeNetLog::AddEntry(EventType type,
const base::TimeTicks& time,
const Source& source,
EventPhase phase,
EventParameters* params) {
// This must be invoked when we're on the IO thread, or if the IO thread's
// message loop isn't valid. The later can happen if this is invoked when the
// IOThread is shuting down the MessageLoop.
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO) ||
!BrowserThread::IsMessageLoopValid(BrowserThread::IO));
// Notify all of the log observers.
FOR_EACH_OBSERVER(Observer, observers_,
OnAddEntry(type, time, source, phase, params));
}
uint32 ChromeNetLog::NextID() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
return next_id_++;
}
net::NetLog::LogLevel ChromeNetLog::GetLogLevel() const {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
// Look through all the observers and find the finest granularity
// log level (higher values of the enum imply *lower* log levels).
LogLevel log_level = LOG_BASIC;
ObserverListBase<Observer>::Iterator it(observers_);
Observer* observer;
while ((observer = it.GetNext()) != NULL) {
log_level = std::min(log_level, observer->log_level());
}
return log_level;
}
void ChromeNetLog::AddObserver(Observer* observer) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
observers_.AddObserver(observer);
}
void ChromeNetLog::RemoveObserver(Observer* observer) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
observers_.RemoveObserver(observer);
}
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