18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24
25 package org.graalvm.compiler.replacements;
26
27 import java.util.ArrayList;
28 import java.util.Collections;
29 import java.util.List;
30
31 import org.graalvm.compiler.core.common.GraalOptions;
32
33 /**
34 * A counter that can (only) be {@linkplain #inc() incremented} from within a snippet for gathering
35 * snippet specific metrics.
36 */
37 public final class SnippetCounter implements Comparable<SnippetCounter> {
38 /**
39 * A group of related counters.
40 */
41 public static class Group {
42
43 public interface Factory {
44 /**
45 * If snippet counters are {@linkplain GraalOptions#SnippetCounters enabled}, creates
46 * and registers a {@link Group} with the given name. Otherwise, returns null.
47 *
48 * @param name name of the counter group
49 */
50 Group createSnippetCounterGroup(String name);
51 }
52
53 public static final Factory NullFactory = new Factory() {
54
55 @Override
56 public Group createSnippetCounterGroup(String name) {
57 return null;
113 */
114 public SnippetCounter(Group group, String name, String description) {
115 this.group = group;
116 this.name = name;
117 this.description = description;
118 if (group != null) {
119 List<SnippetCounter> counters = group.counters;
120 counters.add(this);
121 }
122 }
123
124 public Group getGroup() {
125 return group;
126 }
127
128 /**
129 * Increments the value of this counter. This method can only be used in a snippet on a
130 * compile-time constant {@link SnippetCounter} object.
131 */
132 public void inc() {
133 if (group != null) {
134 SnippetCounterNode.increment(this);
135 }
136 }
137
138 /**
139 * Increments the value of this counter. This method can only be used in a snippet on a
140 * compile-time constant {@link SnippetCounter} object.
141 */
142 public void add(int increment) {
143 if (group != null) {
144 SnippetCounterNode.add(this, increment);
145 }
146 }
147
148 /**
149 * Gets the value of this counter.
150 */
151 public long value() {
152 return value;
153 }
154
155 @Override
156 public String toString() {
157 if (group != null) {
158 return "SnippetCounter-" + group.name + ":" + name;
159 }
160 return super.toString();
161 }
162 }
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18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24
25 package org.graalvm.compiler.replacements;
26
27 import java.util.ArrayList;
28 import java.util.Collections;
29 import java.util.List;
30
31 import org.graalvm.compiler.core.common.GraalOptions;
32
33 /**
34 * A counter that can (only) be {@linkplain #inc() incremented} from within a snippet for gathering
35 * snippet specific metrics.
36 */
37 public final class SnippetCounter implements Comparable<SnippetCounter> {
38
39 public static final SnippetCounter DISABLED_COUNTER = new SnippetCounter(null, "Disabled", "Disabled");
40
41 /**
42 * A group of related counters.
43 */
44 public static class Group {
45
46 public interface Factory {
47 /**
48 * If snippet counters are {@linkplain GraalOptions#SnippetCounters enabled}, creates
49 * and registers a {@link Group} with the given name. Otherwise, returns null.
50 *
51 * @param name name of the counter group
52 */
53 Group createSnippetCounterGroup(String name);
54 }
55
56 public static final Factory NullFactory = new Factory() {
57
58 @Override
59 public Group createSnippetCounterGroup(String name) {
60 return null;
116 */
117 public SnippetCounter(Group group, String name, String description) {
118 this.group = group;
119 this.name = name;
120 this.description = description;
121 if (group != null) {
122 List<SnippetCounter> counters = group.counters;
123 counters.add(this);
124 }
125 }
126
127 public Group getGroup() {
128 return group;
129 }
130
131 /**
132 * Increments the value of this counter. This method can only be used in a snippet on a
133 * compile-time constant {@link SnippetCounter} object.
134 */
135 public void inc() {
136 if (getGroup() != null) {
137 SnippetCounterNode.increment(this);
138 }
139 }
140
141 /**
142 * Increments the value of this counter. This method can only be used in a snippet on a
143 * compile-time constant {@link SnippetCounter} object.
144 */
145 public void add(int increment) {
146 if (getGroup() != null) {
147 SnippetCounterNode.add(this, increment);
148 }
149 }
150
151 /**
152 * Gets the value of this counter.
153 */
154 public long value() {
155 return value;
156 }
157
158 @Override
159 public String toString() {
160 if (group != null) {
161 return "SnippetCounter-" + group.name + ":" + name;
162 }
163 return super.toString();
164 }
165 }
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