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41f998fe5a
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@719 4c0a9323-5329-0410-9bdc-e9ce6186880e
108 lines
4.3 KiB
C++
108 lines
4.3 KiB
C++
// Copyright (c) 2010 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// fast_source_line_resolver.h: FastSourceLineResolver is derived from
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// SourceLineResolverBase, and is a concrete implementation of
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// SourceLineResolverInterface.
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//
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// FastSourceLineResolver is a sibling class of BasicSourceLineResolver. The
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// difference is FastSourceLineResolver loads a serialized memory chunk of data
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// which can be used directly a Module without parsing or copying of underlying
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// data. Therefore loading a symbol in FastSourceLineResolver is much faster
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// and more memory-efficient than BasicSourceLineResolver.
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//
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// See "source_line_resolver_base.h" and
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// "google_breakpad/source_line_resolver_interface.h" for more reference.
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//
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// Author: Siyang Xie (lambxsy@google.com)
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#ifndef GOOGLE_BREAKPAD_PROCESSOR_FAST_SOURCE_LINE_RESOLVER_H__
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#define GOOGLE_BREAKPAD_PROCESSOR_FAST_SOURCE_LINE_RESOLVER_H__
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#include <map>
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#include <string>
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#include "google_breakpad/processor/source_line_resolver_base.h"
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namespace google_breakpad {
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using std::map;
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class FastSourceLineResolver : public SourceLineResolverBase {
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public:
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FastSourceLineResolver();
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virtual ~FastSourceLineResolver() { }
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using SourceLineResolverBase::FillSourceLineInfo;
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using SourceLineResolverBase::FindCFIFrameInfo;
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using SourceLineResolverBase::FindWindowsFrameInfo;
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using SourceLineResolverBase::HasModule;
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using SourceLineResolverBase::LoadModule;
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using SourceLineResolverBase::LoadModuleUsingMapBuffer;
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using SourceLineResolverBase::LoadModuleUsingMemoryBuffer;
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using SourceLineResolverBase::UnloadModule;
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private:
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// Friend declarations.
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friend class ModuleComparer;
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friend class ModuleSerializer;
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friend class FastModuleFactory;
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// Nested types that will derive from corresponding nested types defined in
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// SourceLineResolverBase.
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struct Line;
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struct Function;
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struct PublicSymbol;
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class Module;
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// Deserialize raw memory data to construct a WindowsFrameInfo object.
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static WindowsFrameInfo CopyWFI(const char *raw_memory);
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// Helper methods to manage C-String format symbol data.
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// See "google_breakpad/processor/source_line_resolver_base.h" for more
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// comments about these helper methods.
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virtual void StoreDataBeforeLoad(const CodeModule *module, char *symbol_data);
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virtual void DeleteDataUnload(const CodeModule *module);
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virtual void ClearLocalMemory();
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// No-op helper method.
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virtual void DeleteDataAfterLoad(char *symbol_data) { }
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// Store memory data allocated in LoadModule and LoadModuleUsingMapBuffer.
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typedef std::map<string, char*, CompareString> MemoryMap;
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MemoryMap memory_chunks_;
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// Disallow unwanted copy ctor and assignment operator
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FastSourceLineResolver(const FastSourceLineResolver&);
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void operator=(const FastSourceLineResolver&);
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};
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} // namespace google_breakpad
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#endif // GOOGLE_BREAKPAD_PROCESSOR_FAST_SOURCE_LINE_RESOLVER_H__
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