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1 | /**@file\r |
2 | AutogenLibOrder class.\r |
3 | \r |
4 | This class is to reorder library instance sequence according to library \r |
5 | dependence.\r |
6 | \r |
7 | Copyright (c) 2006, Intel Corporation\r |
8 | All rights reserved. This program and the accompanying materials\r |
9 | are licensed and made available under the terms and conditions of the BSD License\r |
10 | which accompanies this distribution. The full text of the license may be found at\r |
11 | http://opensource.org/licenses/bsd-license.php\r |
12 | \r |
13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
15 | \r |
16 | **/\r |
17 | package org.tianocore.build.autogen;\r |
18 | \r |
19 | import java.util.ArrayList;\r |
20 | import java.util.HashMap;\r |
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21 | import java.util.Iterator;\r |
22 | import java.util.LinkedList;\r |
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23 | import java.util.List;\r |
24 | import java.util.Map;\r |
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25 | import java.util.Stack;\r |
26 | import java.util.HashSet;\r |
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27 | \r |
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28 | import org.apache.xmlbeans.XmlObject;\r |
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29 | import org.tianocore.build.exception.AutoGenException;\r |
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30 | import org.tianocore.build.global.GlobalData;\r |
31 | import org.tianocore.build.global.SurfaceAreaQuery;\r |
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32 | import org.tianocore.build.id.ModuleIdentification;\r |
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33 | import org.tianocore.common.exception.EdkException;\r |
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34 | import org.tianocore.common.logger.EdkLog;\r |
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35 | /**\r |
36 | This class This class is to reorder library instance sequence according to\r |
37 | library dependence.\r |
38 | **/\r |
39 | public class AutogenLibOrder {\r |
40 | ///\r |
41 | /// The map of library class and its library instance.\r |
42 | ///\r |
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43 | private Map<String, ModuleIdentification> libClassProducer = new HashMap<String, ModuleIdentification>();\r |
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44 | \r |
45 | ///\r |
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46 | /// The map of library instance and its consumed Library Classes.\r |
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47 | ///\r |
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48 | private Map<ModuleIdentification, String[]> libInstanceConsumes = new HashMap<ModuleIdentification, String[]>();\r |
49 | \r |
50 | ///\r |
51 | /// The map of library instance and its implemeted Library Classes.\r |
52 | ///\r |
53 | private Map<ModuleIdentification, String[]> libInstanceProduces = new HashMap<ModuleIdentification, String[]>();\r |
54 | \r |
55 | ///\r |
56 | /// The map of library instance and its consumers.\r |
57 | ///\r |
58 | private Map<ModuleIdentification, HashSet<ModuleIdentification>> libInstanceConsumedBy = new HashMap<ModuleIdentification, HashSet<ModuleIdentification>>();\r |
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59 | \r |
60 | ///\r |
61 | /// List of library instance. It is String[3] list, String[0] is libraryName,\r |
62 | /// String[1] is libraryConstructor name, String[2] is libDestructor name.\r |
63 | ///\r |
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64 | private ModuleIdentification[] libInstanceList = null;\r |
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65 | \r |
66 | /**\r |
67 | Constructor function\r |
68 | \r |
69 | This function mainly initialize some member variable.\r |
70 | \r |
71 | @param libraryList List of the library instance.\r |
72 | @throws Exception\r |
73 | **/\r |
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74 | AutogenLibOrder(ModuleIdentification[] libraryList, String arch) throws EdkException {\r |
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75 | ModuleIdentification libInstance;\r |
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76 | String[] libClassDeclList = null;\r |
77 | String[] libClassConsmList = null;\r |
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78 | \r |
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79 | libInstanceList = libraryList;\r |
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80 | for (int i = 0; i < libraryList.length; i++) {\r |
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81 | libInstance = libraryList[i];\r |
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82 | //\r |
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83 | // Fetch the constructor & destructor.\r |
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84 | // \r |
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85 | Map<String, XmlObject> libDoc = GlobalData.getDoc(libInstance, arch);\r |
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86 | SurfaceAreaQuery saq = new SurfaceAreaQuery(libDoc);\r |
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87 | libInstance.setConstructor(saq.getLibConstructorName());\r |
88 | libInstance.setDestructor(saq.getLibDestructorName());\r |
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89 | \r |
90 | //\r |
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91 | // Create library class consume database.\r |
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92 | //\r |
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93 | libClassConsmList = saq.getLibraryClasses(CommonDefinition.ALWAYSCONSUMED, arch);\r |
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94 | if (libClassConsmList != null) {\r |
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95 | if (this.libInstanceConsumes.containsKey(libInstance)) {\r |
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96 | throw new AutoGenException(\r |
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97 | libraryList[i].getName()\r |
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98 | + "-- this library instance already exists, please check the library instance list!");\r |
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99 | } else {\r |
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100 | this.libInstanceConsumes.put(libInstance, libClassConsmList);\r |
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101 | }\r |
102 | }\r |
103 | \r |
104 | //\r |
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105 | // Create library class implementer database\r |
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106 | //\r |
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107 | libClassDeclList = saq.getLibraryClasses(CommonDefinition.ALWAYSPRODUCED, arch);\r |
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108 | if (libClassDeclList != null) {\r |
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109 | this.libInstanceProduces.put(libInstance, libClassDeclList);\r |
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110 | for (int j = 0; j < libClassDeclList.length; j++) {\r |
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111 | if (this.libClassProducer.containsKey(libClassDeclList[j])) {\r |
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112 | EdkLog.log(EdkLog.EDK_ERROR,libClassDeclList[j]\r |
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113 | + " class is already implemented by "\r |
114 | + this.libClassProducer.get(libClassDeclList[j]));\r |
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115 | throw new AutoGenException("Library Class: " + libClassDeclList\r |
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116 | + " already has a library instance!");\r |
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117 | } else {\r |
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118 | this.libClassProducer.put(libClassDeclList[j], libInstance);\r |
119 | }\r |
120 | }\r |
121 | }\r |
122 | }\r |
123 | \r |
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124 | //\r |
125 | // Create a consumed-by database \r |
126 | // \r |
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127 | for (Iterator it = libClassProducer.keySet().iterator(); it.hasNext();) {\r |
128 | String className = (String)it.next();\r |
129 | libInstance = libClassProducer.get(className);\r |
130 | libInstanceConsumedBy.put(libInstance, new HashSet<ModuleIdentification>());\r |
131 | \r |
132 | for (int k = 0; k < libraryList.length; ++k) {\r |
133 | ModuleIdentification consumer = libraryList[k];\r |
134 | String[] consumedClassList = libInstanceConsumes.get(consumer);\r |
135 | \r |
136 | for (int l = 0; l < consumedClassList.length; ++l) {\r |
137 | if (consumedClassList[l].equals(className)) {\r |
138 | libInstanceConsumedBy.get(libInstance).add(consumer);\r |
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139 | }\r |
140 | }\r |
141 | }\r |
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142 | }\r |
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143 | }\r |
144 | \r |
145 | /**\r |
146 | orderLibInstance\r |
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147 | \r |
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148 | This function reorder the library instance according the library class \r |
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149 | dependency, using DAG anaylysis algothim\r |
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150 | \r |
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151 | @return List which content the ordered library instance.\r |
152 | **/\r |
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153 | List<ModuleIdentification> orderLibInstance() throws EdkException {\r |
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154 | LinkedList<ModuleIdentification> orderList = new LinkedList<ModuleIdentification>();\r |
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155 | LinkedList<ModuleIdentification> noConsumerList = new LinkedList<ModuleIdentification>();\r |
156 | \r |
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157 | //\r |
158 | // First, add the library instance without consumers to the Q\r |
159 | // \r |
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160 | for (int i = 0; i < libInstanceList.length; ++i) {\r |
161 | if (libInstanceConsumedBy.get(libInstanceList[i]).size() == 0) {\r |
162 | noConsumerList.add(libInstanceList[i]);\r |
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163 | }\r |
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164 | }\r |
165 | \r |
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166 | while (noConsumerList.size() > 0) {\r |
167 | ModuleIdentification n = noConsumerList.poll();\r |
168 | orderList.addFirst(n);\r |
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169 | \r |
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170 | String[] consumedClassList = libInstanceConsumes.get(n);\r |
171 | for (int i = 0; i < consumedClassList.length; ++i) {\r |
172 | ModuleIdentification m = libClassProducer.get(consumedClassList[i]);\r |
173 | if (m == null) {\r |
174 | continue;\r |
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175 | }\r |
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176 | HashSet<ModuleIdentification> consumedBy = libInstanceConsumedBy.get(m);\r |
177 | consumedBy.remove(n);\r |
178 | if (consumedBy.size() == 0) {\r |
179 | noConsumerList.addLast(m);\r |
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180 | }\r |
181 | }\r |
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182 | \r |
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183 | boolean circularlyConsumed = false;\r |
184 | while (noConsumerList.size() == 0 && !circularlyConsumed) {\r |
185 | circularlyConsumed = true;\r |
186 | for (int i = 0; i < libInstanceList.length; ++i) {\r |
187 | ModuleIdentification libInstance = libInstanceList[i];\r |
188 | if (!libInstance.hasConstructor()) {\r |
189 | continue;\r |
190 | }\r |
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191 | \r |
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192 | HashSet<ModuleIdentification> consumedBy = libInstanceConsumedBy.get(libInstance);\r |
193 | if (consumedBy.size() == 0) {\r |
194 | continue;\r |
195 | }\r |
196 | \r |
197 | ModuleIdentification[] consumedByList = consumedBy.toArray(new ModuleIdentification[consumedBy.size()]);\r |
198 | for (int j = 0; j < consumedByList.length; ++j) {\r |
199 | ModuleIdentification consumer = consumedByList[j];\r |
200 | if (consumer.hasConstructor()) {\r |
201 | continue;\r |
202 | }\r |
203 | //\r |
204 | // if there's no constructor in the library instance's consumer, \r |
205 | // remove it from the consumer list\r |
206 | // \r |
207 | consumedBy.remove(consumer);\r |
208 | circularlyConsumed = false;\r |
209 | if (consumedBy.size() == 0) {\r |
210 | noConsumerList.addLast(libInstance);\r |
211 | break;\r |
212 | }\r |
213 | }\r |
214 | \r |
215 | if (noConsumerList.size() > 0) {\r |
216 | break;\r |
217 | }\r |
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218 | }\r |
219 | }\r |
220 | }\r |
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221 | \r |
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222 | //\r |
223 | // Append the remaining library instance to the end of sorted list\r |
224 | // \r |
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225 | for (int i = 0; i < libInstanceList.length; ++i) {\r |
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226 | if (libInstanceConsumedBy.get(libInstanceList[i]).size() > 0 && libInstanceList[i].hasConstructor()) {\r |
227 | EdkLog.log(EdkLog.EDK_ERROR, libInstanceList[i].getName()\r |
228 | + " with constructor has a circular dependency!");\r |
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229 | throw new AutoGenException("Circular dependency in library instances is found!");\r |
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230 | }\r |
231 | \r |
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232 | if (!orderList.contains(libInstanceList[i])) {\r |
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233 | orderList.add(libInstanceList[i]);\r |
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234 | }\r |
235 | }\r |
236 | return orderList;\r |
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237 | }\r |
238 | }\r |