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// Copyright (c) 2006-2008 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/namespace contains utility functions for gathering
// information about PE (Portable Executable) headers within
// images (dll's / exe's )
#ifndef BASE_IMAGE_UTIL_H_
#define BASE_IMAGE_UTIL_H_
#include <windows.h>
#include <vector>
#include "base/basictypes.h"
namespace image_util {
// Contains both the PE section name (.text, .reloc etc) and its size.
struct ImageSectionData {
ImageSectionData (const std::string& section_name, size_t section_size)
: name (section_name),
size_in_bytes(section_size) {
}
std::string name;
size_t size_in_bytes;
};
typedef std::vector<ImageSectionData> ImageSectionsData;
// Provides image statistics for modules of a specified process, or for the
// specified process' own executable file. To use, invoke CreateImageMetrics()
// to get an instance for a specified process, then access the information via
// methods.
class ImageMetrics {
public:
// Creates an ImageMetrics instance for given process owned by
// the caller.
explicit ImageMetrics(HANDLE process);
~ImageMetrics();
// Fills a vector of ImageSectionsData containing name/size info
// for every section found in the specified dll's PE section table.
// The DLL must be loaded by the process associated with this ImageMetrics
// instance.
bool GetDllImageSectionData(const std::string& loaded_dll_name,
ImageSectionsData* section_sizes);
// Fills a vector if ImageSectionsData containing name/size info
// for every section found in the executable file of the process
// associated with this ImageMetrics instance.
bool GetProcessImageSectionData(ImageSectionsData* section_sizes);
private:
// Helper for GetDllImageSectionData and GetProcessImageSectionData
bool GetImageSectionSizes(char* qualified_path, ImageSectionsData* result);
HANDLE process_;
DISALLOW_COPY_AND_ASSIGN(ImageMetrics);
};
} // namespace image_util
#endif // BASE_IMAGE_UTIL_H_
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