1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "courgette/ensemble.h" 6 7 #include "base/basictypes.h" 8 #include "base/strings/string_number_conversions.h" 9 10 #include "courgette/region.h" 11 #include "courgette/simple_delta.h" 12 #include "courgette/streams.h" 13 14 namespace courgette { 15 16 Element::Element(ExecutableType kind, 17 Ensemble* ensemble, 18 const Region& region) 19 : kind_(kind), ensemble_(ensemble), region_(region) { 20 } 21 22 Element::~Element() {} 23 24 std::string Element::Name() const { 25 return ensemble_->name() + "(" 26 + base::IntToString(kind()) + "," 27 + base::Uint64ToString(offset_in_ensemble()) + "," 28 + base::Uint64ToString(region().length()) + ")"; 29 } 30 31 // Scans the Ensemble's region, sniffing out Elements. We assume that the 32 // elements do not overlap. 33 Status Ensemble::FindEmbeddedElements() { 34 35 size_t length = region_.length(); 36 const uint8* start = region_.start(); 37 38 size_t position = 0; 39 while (position < length) { 40 ExecutableType type; 41 size_t detected_length; 42 43 Status result = DetectExecutableType(start + position, 44 length - position, 45 &type, &detected_length); 46 47 if (result == C_OK) { 48 Region region(start + position, detected_length); 49 50 Element* element = new Element(type, this, region); 51 owned_elements_.push_back(element); 52 elements_.push_back(element); 53 position += region.length(); 54 } else { 55 position++; 56 } 57 } 58 return C_OK; 59 } 60 61 Ensemble::~Ensemble() { 62 for (size_t i = 0; i < owned_elements_.size(); ++i) 63 delete owned_elements_[i]; 64 } 65 66 } // namespace 67
