1/*
2 * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#include <jni.h>
27#include "management.h"
28#include "sun_management_MemoryPoolImpl.h"
29
30JNIEXPORT jobject JNICALL
31Java_sun_management_MemoryPoolImpl_getMemoryManagers0
32  (JNIEnv *env, jobject pool)
33{
34    jobject mgrs = jmm_interface->GetMemoryManagers(env, pool);
35    if (mgrs == NULL) {
36        // Throw internal error since this implementation expects the
37        // pool will never become invalid.
38        JNU_ThrowInternalError(env, "Memory Pool not found");
39    }
40    return mgrs;
41}
42
43JNIEXPORT jobject JNICALL
44Java_sun_management_MemoryPoolImpl_getUsage0
45  (JNIEnv *env, jobject pool)
46{
47    jobject usage = jmm_interface->GetMemoryPoolUsage(env, pool);
48    if (usage == NULL) {
49        // Throw internal error since this implementation expects the
50        // pool will never become invalid.
51        JNU_ThrowInternalError(env, "Memory Pool not found");
52    }
53    return usage;
54}
55
56JNIEXPORT jobject JNICALL
57Java_sun_management_MemoryPoolImpl_getPeakUsage0
58  (JNIEnv *env, jobject pool)
59{
60    jobject usage = jmm_interface->GetPeakMemoryPoolUsage(env, pool);
61    if (usage == NULL) {
62        // Throw internal error since this implementation expects the
63        // pool will never become invalid.
64        JNU_ThrowInternalError(env, "Memory Pool not found");
65    }
66    return usage;
67}
68
69JNIEXPORT void JNICALL
70Java_sun_management_MemoryPoolImpl_setUsageThreshold0
71  (JNIEnv *env, jobject pool, jlong current, jlong newThreshold)
72{
73    // Set both high and low threshold to the same threshold
74    if (newThreshold > current) {
75        // high threshold has to be set first so that high >= low
76        jmm_interface->SetPoolThreshold(env, pool,
77                                        JMM_USAGE_THRESHOLD_HIGH, newThreshold);
78        jmm_interface->SetPoolThreshold(env, pool,
79                                        JMM_USAGE_THRESHOLD_LOW, newThreshold);
80    } else {
81        // low threshold has to be set first so that high >= low
82        jmm_interface->SetPoolThreshold(env, pool,
83                                        JMM_USAGE_THRESHOLD_LOW, newThreshold);
84        jmm_interface->SetPoolThreshold(env, pool,
85                                        JMM_USAGE_THRESHOLD_HIGH, newThreshold);
86    }
87}
88
89JNIEXPORT void JNICALL
90Java_sun_management_MemoryPoolImpl_setCollectionThreshold0
91  (JNIEnv *env, jobject pool, jlong current, jlong newThreshold)
92{
93    // Set both high and low threshold to the same threshold
94    if (newThreshold > current) {
95        // high threshold has to be set first so that high >= low
96        jmm_interface->SetPoolThreshold(env, pool,
97                                        JMM_COLLECTION_USAGE_THRESHOLD_HIGH,
98                                        newThreshold);
99        jmm_interface->SetPoolThreshold(env, pool,
100                                        JMM_COLLECTION_USAGE_THRESHOLD_LOW,
101                                        newThreshold);
102    } else {
103        // low threshold has to be set first so that high >= low
104        jmm_interface->SetPoolThreshold(env, pool,
105                                        JMM_COLLECTION_USAGE_THRESHOLD_LOW,
106                                        newThreshold);
107        jmm_interface->SetPoolThreshold(env, pool,
108                                        JMM_COLLECTION_USAGE_THRESHOLD_HIGH,
109                                        newThreshold);
110    }
111}
112
113JNIEXPORT void JNICALL
114Java_sun_management_MemoryPoolImpl_resetPeakUsage0
115  (JNIEnv *env, jobject pool)
116{
117    jvalue value;
118    value.l = pool;
119    jmm_interface->ResetStatistic(env, value, JMM_STAT_PEAK_POOL_USAGE);
120}
121
122JNIEXPORT void JNICALL
123Java_sun_management_MemoryPoolImpl_setPoolUsageSensor
124  (JNIEnv *env, jobject pool, jobject sensor)
125{
126    jmm_interface->SetPoolSensor(env, pool,
127                                 JMM_USAGE_THRESHOLD_HIGH, sensor);
128}
129
130JNIEXPORT void JNICALL
131Java_sun_management_MemoryPoolImpl_setPoolCollectionSensor
132  (JNIEnv *env, jobject pool, jobject sensor)
133{
134    jmm_interface->SetPoolSensor(env, pool,
135                                 JMM_COLLECTION_USAGE_THRESHOLD_HIGH, sensor);
136}
137
138JNIEXPORT jobject JNICALL
139Java_sun_management_MemoryPoolImpl_getCollectionUsage0
140  (JNIEnv *env, jobject pool)
141{
142    return jmm_interface->GetPoolCollectionUsage(env, pool);
143}
144