src/chrome/browser/chromeos/system_logs/system_logs_fetcher_base.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chromeos/system_logs/system_logs_fetcher_base.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "chrome/browser/chromeos/system_logs/chrome_internal_log_source.h"
  10 #include "chrome/browser/chromeos/system_logs/command_line_log_source.h"
  11 #include "chrome/browser/chromeos/system_logs/dbus_log_source.h"
  12 #include "chrome/browser/chromeos/system_logs/debug_daemon_log_source.h"
  13 #include "chrome/browser/chromeos/system_logs/lsb_release_log_source.h"
  14 #include "chrome/browser/chromeos/system_logs/memory_details_log_source.h"
  15 #include "chrome/browser/chromeos/system_logs/network_event_log_source.h"
  16 #include "chrome/browser/chromeos/system_logs/touch_log_source.h"
  17 #include "content/public/browser/browser_thread.h"
  18
  19 using content::BrowserThread;
  20
  21 namespace chromeos {
  22
  23 SystemLogsFetcherBase::SystemLogsFetcherBase()
  24     : response_(new SystemLogsResponse),
  25       num_pending_requests_(0) {
  26 }
  27
  28 SystemLogsFetcherBase::~SystemLogsFetcherBase() {}
  29
  30 void SystemLogsFetcherBase::Fetch(const SysLogsFetcherCallback& callback) {
  31   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  32   DCHECK(callback_.is_null());
  33   DCHECK(!callback.is_null());
  34
  35   callback_ = callback;
  36   for (size_t i = 0; i < data_sources_.size(); ++i) {
  37     data_sources_[i]->Fetch(base::Bind(&SystemLogsFetcherBase::AddResponse,
  38                                        AsWeakPtr()));
  39   }
  40 }
  41
  42 void SystemLogsFetcherBase::AddResponse(SystemLogsResponse* response) {
  43   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  44
  45   for (SystemLogsResponse::const_iterator it = response->begin();
  46        it != response->end();
  47        ++it) {
  48     // It is an error to insert an element with a pre-existing key.
  49     bool ok = response_->insert(*it).second;
  50     DCHECK(ok) << "Duplicate key found: " << it->first;
  51   }
  52
  53   --num_pending_requests_;
  54   if (num_pending_requests_ > 0)
  55     return;
  56
  57   callback_.Run(response_.Pass());
  58   BrowserThread::DeleteSoon(BrowserThread::UI, FROM_HERE, this);
  59 }
  60
  61 }  // namespace chromeos