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Lines 152-168
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| 152 |
* reads and concurrent writes, write access to the tree is governed |
152 |
* reads and concurrent writes, write access to the tree is governed |
| 153 |
* by {@link WorkManager}. |
153 |
* by {@link WorkManager}. |
| 154 |
*/ |
154 |
*/ |
| 155 |
protected ElementTree tree; |
155 |
protected ElementTree tree; |
| 156 |
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156 |
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157 |
/** |
| 158 |
* Synchronize access to the treeLocked field. Only one thread at a time |
| 159 |
* can lock the tree for resource change notifications. |
| 160 |
*/ |
| 161 |
private final Object treeLockMonitor = new Object(); |
| 162 |
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| 157 |
/** |
163 |
/** |
| 158 |
* This field is used to control access to the workspace tree during |
164 |
* This field is used to control access to the workspace tree during |
| 159 |
* resource change notifications. It tracks which thread, if any, is |
165 |
* resource change notifications. It tracks which thread, if any, is |
| 160 |
* in the middle of a resource change notification. This is used to cause |
166 |
* in the middle of a resource change notification. This is used to cause |
| 161 |
* attempts to modify the workspace during notifications to fail. |
167 |
* attempts to modify the workspace during notifications to fail. |
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168 |
* |
| 169 |
* guardedBy: treeLockMonitor |
| 162 |
*/ |
170 |
*/ |
| 163 |
protected Thread treeLocked = null; |
171 |
private Thread treeLocked = null; |
| 164 |
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172 |
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| 165 |
/** |
173 |
/** |
| 166 |
* The currently installed file modification validator. |
174 |
* The currently installed file modification validator. |
| 167 |
*/ |
175 |
*/ |
| 168 |
protected IFileModificationValidator validator = null; |
176 |
protected IFileModificationValidator validator = null; |
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Lines 225-235
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| 225 |
super(); |
233 |
super(); |
| 226 |
localMetaArea = new LocalMetaArea(); |
234 |
localMetaArea = new LocalMetaArea(); |
| 227 |
tree = new ElementTree(); |
235 |
tree = new ElementTree(); |
| 228 |
/* tree should only be modified during operations */ |
236 |
/* tree should only be modified during operations */ |
| 229 |
tree.immutable(); |
237 |
tree.immutable(); |
| 230 |
treeLocked = Thread.currentThread(); |
238 |
synchronized (treeLockMonitor) { |
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239 |
treeLocked = Thread.currentThread(); |
| 240 |
} |
| 231 |
tree.setTreeData(newElement(IResource.ROOT)); |
241 |
tree.setTreeData(newElement(IResource.ROOT)); |
| 232 |
} |
242 |
} |
| 233 |
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243 |
|
| 234 |
/** |
244 |
/** |
| 235 |
* Indicates that a build is about to occur. Broadcasts the necessary |
245 |
* Indicates that a build is about to occur. Broadcasts the necessary |
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Lines 1437-1447
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| 1437 |
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1447 |
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| 1438 |
/* (non-Javadoc) |
1448 |
/* (non-Javadoc) |
| 1439 |
* @see IWorkspace#isTreeLocked() |
1449 |
* @see IWorkspace#isTreeLocked() |
| 1440 |
*/ |
1450 |
*/ |
| 1441 |
public boolean isTreeLocked() { |
1451 |
public boolean isTreeLocked() { |
| 1442 |
return treeLocked == Thread.currentThread(); |
1452 |
synchronized (treeLockMonitor) { |
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1453 |
return treeLocked == Thread.currentThread(); |
| 1454 |
} |
| 1443 |
} |
1455 |
} |
| 1444 |
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1456 |
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| 1445 |
/** |
1457 |
/** |
| 1446 |
* Link the given tree into the receiver's tree at the specified resource. |
1458 |
* Link the given tree into the receiver's tree at the specified resource. |
| 1447 |
*/ |
1459 |
*/ |
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Lines 1859-1871
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| 1859 |
buildOrder = null; |
1871 |
buildOrder = null; |
| 1860 |
description.copyFrom(newDescription); |
1872 |
description.copyFrom(newDescription); |
| 1861 |
ResourcesPlugin.getPlugin().savePluginPreferences(); |
1873 |
ResourcesPlugin.getPlugin().savePluginPreferences(); |
| 1862 |
} |
1874 |
} |
| 1863 |
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1875 |
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| 1864 |
public void setTreeLocked(boolean locked) { |
1876 |
public void setTreeLocked(boolean doLock) { |
| 1865 |
treeLocked = locked ? Thread.currentThread() : null; |
1877 |
if (doLock) { |
| 1866 |
} |
1878 |
// true: acquire the tree lock |
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|
1879 |
synchronized (treeLockMonitor) { |
| 1880 |
while (treeLocked != null && treeLocked != Thread.currentThread()) { |
| 1881 |
try { |
| 1882 |
treeLockMonitor.wait(); |
| 1883 |
} catch (InterruptedException e) { |
| 1884 |
Thread.currentThread().interrupt(); |
| 1885 |
final OperationCanceledException operationCanceledException = |
| 1886 |
new OperationCanceledException(e.getMessage()); |
| 1887 |
operationCanceledException.initCause(e); |
| 1888 |
throw operationCanceledException; |
| 1889 |
} |
| 1890 |
} |
| 1891 |
treeLocked = Thread.currentThread(); |
| 1892 |
} |
| 1893 |
} else { |
| 1894 |
// false: release the tree lock |
| 1895 |
synchronized (treeLockMonitor) { |
| 1896 |
if (treeLocked != Thread.currentThread() && treeLocked != null) { |
| 1897 |
throw new IllegalThreadStateException("tree has not been locked by me: " + Thread.currentThread() |
| 1898 |
+ ", but by: " + treeLocked); |
| 1899 |
} |
| 1900 |
treeLocked = null; |
| 1901 |
treeLockMonitor.notifyAll(); |
| 1902 |
} |
| 1903 |
} |
| 1904 |
} |
| 1867 |
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1905 |
|
| 1868 |
/** |
1906 |
/** |
| 1869 |
* @deprecated |
1907 |
* @deprecated |
| 1870 |
*/ |
1908 |
*/ |
| 1871 |
public void setWorkspaceLock(WorkspaceLock lock) { |
1909 |
public void setWorkspaceLock(WorkspaceLock lock) { |
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Lines 1957-1967
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| 1957 |
charsetManager.startup(null); |
1995 |
charsetManager.startup(null); |
| 1958 |
contentDescriptionManager = new ContentDescriptionManager(); |
1996 |
contentDescriptionManager = new ContentDescriptionManager(); |
| 1959 |
contentDescriptionManager.startup(null); |
1997 |
contentDescriptionManager.startup(null); |
| 1960 |
} finally { |
1998 |
} finally { |
| 1961 |
//unlock tree even in case of failure, otherwise shutdown will also fail |
1999 |
//unlock tree even in case of failure, otherwise shutdown will also fail |
| 1962 |
treeLocked = null; |
2000 |
synchronized (treeLockMonitor) { |
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|
2001 |
treeLocked = null; |
| 2002 |
} |
| 1963 |
} |
2003 |
} |
| 1964 |
} |
2004 |
} |
| 1965 |
|
2005 |
|
| 1966 |
/** |
2006 |
/** |
| 1967 |
* Returns a string representation of this working state's |
2007 |
* Returns a string representation of this working state's |
