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comparison agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java @ 702:b9fba36710f2

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6699669: Hotspot server leaves synchronized block with monitor in bad state Summary: Remove usage of _highest_lock field in Thread so that is_lock_owned won't depend on the correct update of that field. Reviewed-by: never, dice, acorn
author xlu
date Mon, 06 Apr 2009 15:47:39 -0700
parents a61af66fc99e
children bd02caa94611
comparison
equal deleted inserted replaced
697:922aedc96ef5 702:b9fba36710f2
162 if (o.equals(thread.threadObjectAddress())) { 162 if (o.equals(thread.threadObjectAddress())) {
163 return thread; 163 return thread;
164 } 164 }
165 } 165 }
166 166
167 long leastDiff = 0; 167 for (JavaThread thread = first(); thread != null; thread = thread.next()) {
168 boolean leastDiffInitialized = false; 168 if (thread.isLockOwned(o))
169 JavaThread theOwner = null; 169 return thread;
170 for (JavaThread thread = first(); thread != null; thread = thread.next()) { 170 }
171 Address addr = thread.highestLock(); 171 return null;
172 if (addr == null || addr.lessThan(o)) continue;
173 long diff = addr.minus(o);
174 if (!leastDiffInitialized || diff < leastDiff) {
175 leastDiffInitialized = true;
176 leastDiff = diff;
177 theOwner = thread;
178 }
179 }
180 return theOwner;
181 } 172 }
182 173
183 public JavaThread owningThreadFromMonitor(ObjectMonitor monitor) { 174 public JavaThread owningThreadFromMonitor(ObjectMonitor monitor) {
184 return owningThreadFromMonitor(monitor.owner()); 175 return owningThreadFromMonitor(monitor.owner());
185 } 176 }