AU: Resume interrupted update attempts.

filesystem_copier_action.cc

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 The Chromium OS 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 "update_engine/filesystem_copier_action.h"
+
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <errno.h>
 #include <fcntl.h>
-#include <stdlib.h>
+
 #include <algorithm>
+#include <cstdlib>
 #include <map>
 #include <string>
 #include <vector>
+
 #include <gio/gio.h>
 #include <gio/gunixinputstream.h>
 #include <gio/gunixoutputstream.h>
 #include <glib.h>
+
 #include "update_engine/filesystem_iterator.h"
 #include "update_engine/subprocess.h"
 #include "update_engine/utils.h"
 
 using std::map;
 using std::min;
 using std::string;
 using std::vector;
 
 namespace chromeos_update_engine {
 
 namespace {
 const off_t kCopyFileBufferSize = 2 * 1024 * 1024;
 }  // namespace {}
 
 void FilesystemCopierAction::PerformAction() {
   // Will tell the ActionProcessor we've failed if we return.
   ScopedActionCompleter abort_action_completer(processor_, this);
 
   if (!HasInputObject()) {
     LOG(ERROR) << "FilesystemCopierAction missing input object.";
     return;
   }
   install_plan_ = GetInputObject();
 
-  if (install_plan_.is_full_update) {
+  if (install_plan_.is_full_update || install_plan_.is_resume) {
     // No copy needed. Done!
     if (HasOutputPipe())
       SetOutputObject(install_plan_);
     abort_action_completer.set_code(kActionCodeSuccess);
     return;
   }
 
   string source = copy_source_;
   if (source.empty()) {
     source = copying_kernel_install_path_ ?
@@ skipping 117 matching lines @@
       src_stream_,
       &buffer_[0],
       buffer_.size(),
       G_PRIORITY_DEFAULT,
       canceller_,
       &FilesystemCopierAction::StaticAsyncReadyCallback,
       this);
 }
 
 }  // namespace chromeos_update_engine