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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 "net/base/forwarding_net_log.h"
#include "base/lock.h"
#include "base/logging.h"
#include "base/message_loop.h"
namespace net {
// Reference-counted wrapper, so we can use PostThread and it can safely
// outlive the parent ForwardingNetLog.
class ForwardingNetLog::Core
: public base::RefCountedThreadSafe<ForwardingNetLog::Core> {
public:
Core(NetLog* impl, MessageLoop* loop) : impl_(impl), loop_(loop) {
DCHECK(impl);
DCHECK(loop);
}
// Called once the parent ForwardingNetLog is being destroyed. It
// is invalid to access |loop_| and |impl_| afterwards.
void Orphan() {
AutoLock l(lock_);
loop_ = NULL;
impl_ = NULL;
}
void AddEntry(EventType type,
const base::TimeTicks& time,
const Source& source,
EventPhase phase,
EventParameters* params) {
AutoLock l(lock_);
if (!loop_)
return; // Was orphaned.
loop_->PostTask(
FROM_HERE,
NewRunnableMethod(
this, &Core::AddEntryOnLoop, type, time, source, phase,
scoped_refptr<EventParameters>(params)));
}
private:
void AddEntryOnLoop(EventType type,
const base::TimeTicks& time,
const Source& source,
EventPhase phase,
scoped_refptr<EventParameters> params) {
AutoLock l(lock_);
if (!loop_)
return; // Was orphaned.
DCHECK_EQ(MessageLoop::current(), loop_);
// TODO(eroman): This shouldn't be necessary. See crbug.com/48806.
NetLog::Source effective_source = source;
if (effective_source.id == NetLog::Source::kInvalidId)
effective_source.id = impl_->NextID();
impl_->AddEntry(type, time, effective_source, phase, params);
}
Lock lock_;
NetLog* impl_;
MessageLoop* loop_;
};
ForwardingNetLog::ForwardingNetLog(NetLog* impl, MessageLoop* loop)
: core_(new Core(impl, loop)) {
}
ForwardingNetLog::~ForwardingNetLog() {
core_->Orphan();
}
void ForwardingNetLog::AddEntry(EventType type,
const base::TimeTicks& time,
const Source& source,
EventPhase phase,
EventParameters* params) {
core_->AddEntry(type, time, source, phase, params);
}
uint32 ForwardingNetLog::NextID() {
// Can't forward a synchronous API.
CHECK(false) << "Not supported";
return 0;
}
bool ForwardingNetLog::HasListener() const {
// Can't forward a synchronous API.
CHECK(false) << "Not supported";
return false;
}
} // namespace net
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