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// Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// code_modules.h: Contains all of the CodeModule objects that were loaded
// into a single process.
//
// Author: Mark Mentovai
#ifndef GOOGLE_BREAKPAD_PROCESSOR_CODE_MODULES_H__
#define GOOGLE_BREAKPAD_PROCESSOR_CODE_MODULES_H__
#include <stddef.h>
#include <vector>
#include "google_breakpad/common/breakpad_types.h"
#include "processor/linked_ptr.h"
namespace google_breakpad {
class CodeModule;
class CodeModules {
public:
virtual ~CodeModules() {}
// The number of contained CodeModule objects.
virtual unsigned int module_count() const = 0;
// Random access to modules. Returns the module whose code is present
// at the address indicated by |address|. If no module is present at this
// address, returns NULL. Ownership of the returned CodeModule is retained
// by the CodeModules object; pointers returned by this method are valid for
// comparison with pointers returned by the other Get methods.
virtual const CodeModule* GetModuleForAddress(uint64_t address) const = 0;
// Returns the module corresponding to the main executable. If there is
// no main executable, returns NULL. Ownership of the returned CodeModule
// is retained by the CodeModules object; pointers returned by this method
// are valid for comparison with pointers returned by the other Get
// methods.
virtual const CodeModule* GetMainModule() const = 0;
// Sequential access to modules. A sequence number of 0 corresponds to the
// module residing lowest in memory. If the sequence number is out of
// range, returns NULL. Ownership of the returned CodeModule is retained
// by the CodeModules object; pointers returned by this method are valid for
// comparison with pointers returned by the other Get methods.
virtual const CodeModule* GetModuleAtSequence(
unsigned int sequence) const = 0;
// Sequential access to modules. This is similar to GetModuleAtSequence,
// except no ordering requirement is enforced. A CodeModules implementation
// may return CodeModule objects from GetModuleAtIndex in any order it
// wishes, provided that the order remain the same throughout the life of
// the CodeModules object. Typically, GetModuleAtIndex would be used by
// a caller to enumerate all CodeModule objects quickly when the enumeration
// does not require any ordering. If the index argument is out of range,
// returns NULL. Ownership of the returned CodeModule is retained by
// the CodeModules object; pointers returned by this method are valid for
// comparison with pointers returned by the other Get methods.
virtual const CodeModule* GetModuleAtIndex(unsigned int index) const = 0;
// Creates a new copy of this CodeModules object, which the caller takes
// ownership of. The new object will also contain copies of the existing
// object's child CodeModule objects. The new CodeModules object may be of
// a different concrete class than the object being copied, but will behave
// identically to the copied object as far as the CodeModules and CodeModule
// interfaces are concerned, except that the order that GetModuleAtIndex
// returns objects in may differ between a copy and the original CodeModules
// object.
virtual const CodeModules* Copy() const = 0;
// Returns a vector of all modules which address ranges needed to be shrunk
// down due to address range conflicts with other modules.
virtual std::vector<linked_ptr<const CodeModule> >
GetShrunkRangeModules() const = 0;
};
} // namespace google_breakpad
#endif // GOOGLE_BREAKPAD_PROCESSOR_CODE_MODULES_H__
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