Switch out use of std::string and std::vector for large allocations for a buffer class that doesn...

courgette/ensemble_apply.cc

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
 // This file contains the code to apply a Courgette patch.
 
 #include "courgette/ensemble.h"
 
 #include "base/basictypes.h"
 #include "base/file_util.h"
 #include "base/logging.h"
@@ skipping 377 matching lines @@
     return C_READ_ERROR;
 
   // Apply patch on streams.
   SourceStream old_source_stream;
   SourceStream patch_source_stream;
   old_source_stream.Init(old_file.data(), old_file.length());
   patch_source_stream.Init(patch_file.data(), patch_file.length());
   SinkStream new_sink_stream;
   status = ApplyEnsemblePatch(&old_source_stream, &patch_source_stream,
                               &new_sink_stream);
+  if (status != C_OK)
+    return status;
 
   // Write the patched data to |new_file_name|.
   FilePath new_file_path(new_file_name);
   int written =
       file_util::WriteFile(
           new_file_path,
           reinterpret_cast<const char*>(new_sink_stream.Buffer()),
           static_cast<int>(new_sink_stream.Length()));
   if (written == -1)
     return C_WRITE_OPEN_ERROR;
   if (static_cast<size_t>(written) != new_sink_stream.Length())
     return C_WRITE_ERROR;
 
   return C_OK;
 }
 
 }  // namespace