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3261e8b6ea
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@11 4c0a9323-5329-0410-9bdc-e9ce6186880e
66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
// Copyright (C) 2006 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// memory_region.h: Access to memory regions.
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//
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// A MemoryRegion provides virtual access to a range of memory. It is an
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// abstraction allowing the actual source of memory to be independent of
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// methods which need to access a virtual memory space.
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//
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// Author: Mark Mentovai
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#ifndef PROCESSOR_MEMORY_REGION_H__
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#define PROCESSOR_MEMORY_REGION_H__
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#include "google/airbag_types.h"
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namespace google_airbag {
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class MemoryRegion {
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public:
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virtual ~MemoryRegion() {}
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// The base address of this memory region.
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virtual u_int64_t GetBase() = 0;
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// The size of this memory region.
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virtual u_int32_t GetSize() = 0;
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// Access to data of various sizes within the memory region. address
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// is a pointer to read, and it must lie within the memory region as
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// defined by its base address and size. The location pointed to by
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// value is set to the value at address. Byte-swapping is performed
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// if necessary so that the value is appropriate for the running
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// program. Returns true on success. Fails and returns false if address
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// is out of the region's bounds (after considering the width of value),
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// or for other types of errors.
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virtual bool GetMemoryAtAddress(u_int64_t address,
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u_int8_t* value) = 0;
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virtual bool GetMemoryAtAddress(u_int64_t address,
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u_int16_t* value) = 0;
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virtual bool GetMemoryAtAddress(u_int64_t address,
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u_int32_t* value) = 0;
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virtual bool GetMemoryAtAddress(u_int64_t address,
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u_int64_t* value) = 0;
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};
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} // namespace google_airbag
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#endif // PROCESSOR_MEMORY_REGION_H__
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