72 /** Returns a subregion of the space containing all the objects in
73 the space. */
74 public MemRegion usedRegion() {
75 return new MemRegion(bottom(), end());
76 }
77
78 /** Support for iteration over heap -- not sure how this will
79 interact with GC in reflective system, but necessary for the
80 debugging mechanism */
81 public OopHandle bottomAsOopHandle() {
82 return bottomField.getOopHandle(addr);
83 }
84
85 /** Support for iteration over heap -- not sure how this will
86 interact with GC in reflective system, but necessary for the
87 debugging mechanism */
88 public OopHandle nextOopHandle(OopHandle handle, long size) {
89 return handle.addOffsetToAsOopHandle(size);
90 }
91
92 /** returns all MemRegions where live objects are */
93 public abstract List/*<MemRegion>*/ getLiveRegions();
94
95 /** Returned value is in bytes */
96 public long capacity() { return end().minus(bottom()); }
97 /** Returned value is in bytes */
98 public abstract long used();
99 /** Returned value is in bytes */
100 public abstract long free();
101
102 /** Testers */
103 public boolean contains(Address p) {
104 return (bottom().lessThanOrEqual(p) && end().greaterThan(p));
105 }
106
107 public void print() { printOn(System.out); }
108 public void printOn(PrintStream tty) {
109 tty.print(" space capacity = ");
110 tty.print(capacity());
111 tty.print(", ");
112 tty.print((double) used() * 100.0/ capacity());
113 tty.print(" used");
114 }
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72 /** Returns a subregion of the space containing all the objects in
73 the space. */
74 public MemRegion usedRegion() {
75 return new MemRegion(bottom(), end());
76 }
77
78 /** Support for iteration over heap -- not sure how this will
79 interact with GC in reflective system, but necessary for the
80 debugging mechanism */
81 public OopHandle bottomAsOopHandle() {
82 return bottomField.getOopHandle(addr);
83 }
84
85 /** Support for iteration over heap -- not sure how this will
86 interact with GC in reflective system, but necessary for the
87 debugging mechanism */
88 public OopHandle nextOopHandle(OopHandle handle, long size) {
89 return handle.addOffsetToAsOopHandle(size);
90 }
91
92 /** Returned value is in bytes */
93 public long capacity() { return end().minus(bottom()); }
94 /** Returned value is in bytes */
95 public abstract long used();
96 /** Returned value is in bytes */
97 public abstract long free();
98
99 /** Testers */
100 public boolean contains(Address p) {
101 return (bottom().lessThanOrEqual(p) && end().greaterThan(p));
102 }
103
104 public void print() { printOn(System.out); }
105 public void printOn(PrintStream tty) {
106 tty.print(" space capacity = ");
107 tty.print(capacity());
108 tty.print(", ");
109 tty.print((double) used() * 100.0/ capacity());
110 tty.print(" used");
111 }
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