Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/memory/ConcurrentMarkSweepGeneration.java @ 13705:ac5b0f31f7a2
Truffle API-change: FrameDescriptors are now stored in the RootNode in a final field instead of the CallTarget.
author | Christian Humer <christian.humer@gmail.com> |
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date | Fri, 17 Jan 2014 17:06:08 +0100 |
parents | c18cbe5936b8 |
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0 | 1 /* |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.memory; | |
26 | |
27 import java.io.*; | |
28 import java.util.*; | |
29 import sun.jvm.hotspot.debugger.*; | |
30 import sun.jvm.hotspot.runtime.*; | |
31 import sun.jvm.hotspot.types.*; | |
32 | |
33 public class ConcurrentMarkSweepGeneration extends CardGeneration { | |
34 private static AddressField cmsSpaceField; | |
35 | |
36 public ConcurrentMarkSweepGeneration(Address addr) { | |
37 super(addr); | |
38 } | |
39 | |
40 static { | |
41 VM.registerVMInitializedObserver(new Observer() { | |
42 public void update(Observable o, Object data) { | |
43 initialize(VM.getVM().getTypeDataBase()); | |
44 } | |
45 }); | |
46 } | |
47 | |
48 private static synchronized void initialize(TypeDataBase db) { | |
49 Type type = db.lookupType("ConcurrentMarkSweepGeneration"); | |
50 cmsSpaceField = type.getAddressField("_cmsSpace"); | |
51 } | |
52 | |
53 // Accessing space | |
54 public CompactibleFreeListSpace cmsSpace() { | |
55 return (CompactibleFreeListSpace) VMObjectFactory.newObject( | |
56 CompactibleFreeListSpace.class, | |
57 cmsSpaceField.getValue(addr)); | |
58 } | |
59 | |
60 public long capacity() { return cmsSpace().capacity(); } | |
61 public long used() { return cmsSpace().used(); } | |
62 public long free() { return cmsSpace().free(); } | |
63 public long contiguousAvailable() { throw new RuntimeException("not yet implemented"); } | |
64 public boolean contains(Address p) { return cmsSpace().contains(p); } | |
65 public void spaceIterate(SpaceClosure blk, boolean usedOnly) { | |
66 blk.doSpace(cmsSpace()); | |
67 } | |
68 | |
69 public Generation.Name kind() { | |
70 return Generation.Name.CONCURRENT_MARK_SWEEP; | |
71 } | |
72 | |
73 public String name() { | |
74 return "concurrent mark-sweep generation"; | |
75 } | |
76 | |
77 public void printOn(PrintStream tty) { | |
78 tty.println(name()); | |
79 cmsSpace().printOn(tty); | |
80 } | |
81 } |