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// Copyright 2013 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/feedback/system_logs/system_logs_fetcher_base.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "content/public/browser/browser_thread.h"
using content::BrowserThread;
namespace system_logs {
SystemLogsSource::SystemLogsSource(const std::string& source_name)
: source_name_(source_name) {
}
SystemLogsSource::~SystemLogsSource() {
}
SystemLogsFetcherBase::SystemLogsFetcherBase()
: response_(new SystemLogsResponse),
num_pending_requests_(0) {
}
SystemLogsFetcherBase::~SystemLogsFetcherBase() {}
void SystemLogsFetcherBase::Fetch(const SysLogsFetcherCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(callback_.is_null());
DCHECK(!callback.is_null());
callback_ = callback;
for (size_t i = 0; i < data_sources_.size(); ++i) {
VLOG(1) << "Fetching SystemLogSource: " << data_sources_[i]->source_name();
data_sources_[i]->Fetch(base::Bind(&SystemLogsFetcherBase::AddResponse,
AsWeakPtr(),
data_sources_[i]->source_name()));
}
}
void SystemLogsFetcherBase::AddResponse(const std::string& source_name,
SystemLogsResponse* response) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
VLOG(1) << "Received SystemLogSource: " << source_name;
for (SystemLogsResponse::const_iterator it = response->begin();
it != response->end();
++it) {
// It is an error to insert an element with a pre-existing key.
bool ok = response_->insert(*it).second;
DCHECK(ok) << "Duplicate key found: " << it->first;
}
--num_pending_requests_;
if (num_pending_requests_ > 0)
return;
callback_.Run(response_.Pass());
BrowserThread::DeleteSoon(BrowserThread::UI, FROM_HERE, this);
}
} // namespace system_logs
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