]> git.proxmox.com Git - mirror_edk2.git/blame_incremental - Tools/Java/Source/GenBuild/org/tianocore/build/autogen/AutogenLibOrder.java
Fixed one dead loop issue in the autogenlib.
[mirror_edk2.git] / Tools / Java / Source / GenBuild / org / tianocore / build / autogen / AutogenLibOrder.java
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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
17package org.tianocore.build.autogen;\r
18\r
19import java.util.ArrayList;\r
20import java.util.HashMap;\r
21import java.util.Iterator;\r
22import java.util.LinkedList;\r
23import java.util.List;\r
24import java.util.Map;\r
25import java.util.Stack;\r
26import java.util.HashSet;\r
27\r
28import org.apache.xmlbeans.XmlObject;\r
29import org.tianocore.build.exception.AutoGenException;\r
30import org.tianocore.build.global.GlobalData;\r
31import org.tianocore.build.global.SurfaceAreaQuery;\r
32import org.tianocore.build.id.ModuleIdentification;\r
33import org.tianocore.common.exception.EdkException;\r
34import org.tianocore.common.logger.EdkLog;\r
35/**\r
36 This class This class is to reorder library instance sequence according to\r
37 library dependence.\r
38**/\r
39public class AutogenLibOrder {\r
40 ///\r
41 /// The map of library class and its library instance.\r
42 ///\r
43 private Map<String, ModuleIdentification> libClassProducer = new HashMap<String, ModuleIdentification>();\r
44\r
45 ///\r
46 /// The map of library instance and its consumed Library Classes.\r
47 ///\r
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
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
64 private ModuleIdentification[] libInstanceList = null;\r
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
74 AutogenLibOrder(ModuleIdentification[] libraryList, String arch) throws EdkException {\r
75 ModuleIdentification libInstance;\r
76 String[] libClassDeclList = null;\r
77 String[] libClassConsmList = null;\r
78\r
79 libInstanceList = libraryList;\r
80 for (int i = 0; i < libraryList.length; i++) {\r
81 libInstance = libraryList[i];\r
82 //\r
83 // Fetch the constructor & destructor.\r
84 //\r
85 Map<String, XmlObject> libDoc = GlobalData.getDoc(libInstance, arch);\r
86 SurfaceAreaQuery saq = new SurfaceAreaQuery(libDoc);\r
87 libInstance.setConstructor(saq.getLibConstructorName());\r
88 libInstance.setDestructor(saq.getLibDestructorName());\r
89\r
90 //\r
91 // Create library class consume database.\r
92 //\r
93 libClassConsmList = saq.getLibraryClasses(CommonDefinition.ALWAYSCONSUMED, arch);\r
94 if (libClassConsmList != null) {\r
95 if (this.libInstanceConsumes.containsKey(libInstance)) {\r
96 throw new AutoGenException(\r
97 libraryList[i].getName()\r
98 + "-- this library instance already exists, please check the library instance list!");\r
99 } else {\r
100 this.libInstanceConsumes.put(libInstance, libClassConsmList);\r
101 }\r
102 }\r
103\r
104 //\r
105 // Create library class implementer database\r
106 //\r
107 libClassDeclList = saq.getLibraryClasses(CommonDefinition.ALWAYSPRODUCED, arch);\r
108 if (libClassDeclList != null) {\r
109 this.libInstanceProduces.put(libInstance, libClassDeclList);\r
110 for (int j = 0; j < libClassDeclList.length; j++) {\r
111 if (this.libClassProducer.containsKey(libClassDeclList[j])) {\r
112 EdkLog.log(EdkLog.EDK_ERROR,libClassDeclList[j]\r
113 + " class is already implemented by "\r
114 + this.libClassProducer.get(libClassDeclList[j]));\r
115 throw new AutoGenException("Library Class: " + libClassDeclList\r
116 + " already has a library instance!");\r
117 } else {\r
118 this.libClassProducer.put(libClassDeclList[j], libInstance);\r
119 }\r
120 }\r
121 }\r
122 }\r
123\r
124 //\r
125 // Create a consumed-by database\r
126 //\r
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
139 }\r
140 }\r
141 }\r
142 }\r
143 }\r
144\r
145 /**\r
146 orderLibInstance\r
147\r
148 This function reorder the library instance according the library class\r
149 dependency, using DAG anaylysis algothim\r
150\r
151 @return List which content the ordered library instance.\r
152 **/\r
153 List<ModuleIdentification> orderLibInstance() throws EdkException {\r
154 LinkedList<ModuleIdentification> orderList = new LinkedList<ModuleIdentification>();\r
155 LinkedList<ModuleIdentification> noConsumerList = new LinkedList<ModuleIdentification>();\r
156\r
157 //\r
158 // First, add the library instance without consumers to the Q\r
159 //\r
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
163 }\r
164 }\r
165\r
166 while (noConsumerList.size() > 0) {\r
167 ModuleIdentification n = noConsumerList.poll();\r
168 orderList.addFirst(n);\r
169\r
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
175 }\r
176 HashSet<ModuleIdentification> consumedBy = libInstanceConsumedBy.get(m);\r
177 if (consumedBy.size() == 0) {\r
178 continue;\r
179 }\r
180\r
181 consumedBy.remove(n);\r
182 if (consumedBy.size() == 0) {\r
183 noConsumerList.addLast(m);\r
184 }\r
185 }\r
186\r
187 boolean circularlyConsumed = false;\r
188 while (noConsumerList.size() == 0 && !circularlyConsumed) {\r
189 circularlyConsumed = true;\r
190 for (int i = 0; i < libInstanceList.length; ++i) {\r
191 ModuleIdentification libInstance = libInstanceList[i];\r
192 if (!libInstance.hasConstructor()) {\r
193 continue;\r
194 }\r
195\r
196 HashSet<ModuleIdentification> consumedBy = libInstanceConsumedBy.get(libInstance);\r
197 if (consumedBy.size() == 0) {\r
198 continue;\r
199 }\r
200\r
201 ModuleIdentification[] consumedByList = consumedBy.toArray(new ModuleIdentification[consumedBy.size()]);\r
202 for (int j = 0; j < consumedByList.length; ++j) {\r
203 ModuleIdentification consumer = consumedByList[j];\r
204 if (consumer.hasConstructor()) {\r
205 continue;\r
206 }\r
207\r
208 //\r
209 // if there's no constructor in the library instance's consumer,\r
210 // remove it from the consumer list\r
211 //\r
212 consumedBy.remove(consumer);\r
213 circularlyConsumed = false;\r
214 if (consumedBy.size() == 0) {\r
215 noConsumerList.addLast(libInstance);\r
216 break;\r
217 }\r
218 }\r
219\r
220 if (noConsumerList.size() > 0) {\r
221 break;\r
222 }\r
223 }\r
224\r
225 if (noConsumerList.size() == 0 && !circularlyConsumed) {\r
226 break;\r
227 }\r
228 }\r
229 }\r
230\r
231 //\r
232 // Append the remaining library instance to the end of sorted list\r
233 //\r
234 for (int i = 0; i < libInstanceList.length; ++i) {\r
235 if (libInstanceConsumedBy.get(libInstanceList[i]).size() > 0 && libInstanceList[i].hasConstructor()) {\r
236 EdkLog.log(EdkLog.EDK_ERROR, libInstanceList[i].getName()\r
237 + " with constructor has a circular dependency!");\r
238 throw new AutoGenException("Circular dependency in library instances is found!");\r
239 }\r
240\r
241 if (!orderList.contains(libInstanceList[i])) {\r
242 orderList.add(libInstanceList[i]);\r
243 }\r
244 }\r
245 return orderList;\r
246 }\r
247}\r