1 /*
2 * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of Oracle nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
226 {
227 menter(jvmti, vm_death_lock); {
228 if ( !vm_death_active ) {
229 get_agent(jvmti)->monitor_waited(jvmti, env, thread,
230 object, timed_out);
231 }
232 } mexit(jvmti, vm_death_lock);
233 }
234 static void JNICALL
235 object_free(jvmtiEnv* jvmti, jlong tag)
236 {
237 menter(jvmti, vm_death_lock); {
238 if ( !vm_death_active ) {
239 get_agent(jvmti)->object_free(jvmti, tag);
240 }
241 } mexit(jvmti, vm_death_lock);
242 }
243
244 /* Agent_OnLoad() is called first, we prepare for a VM_INIT event here. */
245 JNIEXPORT jint JNICALL
246 Agent_OnLoad(JavaVM *vm, char *options, void *reserved)
247 {
248 jvmtiEnv *jvmti;
249 jint rc;
250 jvmtiError err;
251 jvmtiCapabilities capabilities;
252 jvmtiEventCallbacks callbacks;
253
254 /* Get JVMTI environment */
255 rc = vm->GetEnv((void **)&jvmti, JVMTI_VERSION);
256 if (rc != JNI_OK) {
257 fatal_error("ERROR: Unable to create jvmtiEnv, GetEnv failed, error=%d\n", rc);
258 return -1;
259 }
260
261 /* Get/Add JVMTI capabilities */
262 (void)memset(&capabilities, 0, sizeof(capabilities));
263 capabilities.can_generate_monitor_events = 1;
264 capabilities.can_get_monitor_info = 1;
265 capabilities.can_tag_objects = 1;
266 capabilities.can_generate_object_free_events = 1;
271 memset(&callbacks, 0, sizeof(callbacks));
272 callbacks.VMInit = &vm_init;
273 callbacks.VMDeath = &vm_death;
274 callbacks.ThreadStart = &thread_start;
275 callbacks.ThreadEnd = &thread_end;
276 callbacks.MonitorContendedEnter = &monitor_contended_enter;
277 callbacks.MonitorContendedEntered = &monitor_contended_entered;
278 callbacks.MonitorWait = &monitor_wait;
279 callbacks.MonitorWaited = &monitor_waited;
280 callbacks.ObjectFree = &object_free;
281 err = jvmti->SetEventCallbacks(&callbacks, (jint)sizeof(callbacks));
282 check_jvmti_error(jvmti, err, "set event callbacks");
283 err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
284 JVMTI_EVENT_VM_INIT, NULL);
285 check_jvmti_error(jvmti, err, "set event notify");
286 return 0;
287 }
288
289 /* Agent_OnUnload() is called last */
290 JNIEXPORT void JNICALL
291 Agent_OnUnload(JavaVM *vm)
292 {
293 }
294
295 } /* of extern "C" */
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1 /*
2 * Copyright (c) 2004, 2015, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of Oracle nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
226 {
227 menter(jvmti, vm_death_lock); {
228 if ( !vm_death_active ) {
229 get_agent(jvmti)->monitor_waited(jvmti, env, thread,
230 object, timed_out);
231 }
232 } mexit(jvmti, vm_death_lock);
233 }
234 static void JNICALL
235 object_free(jvmtiEnv* jvmti, jlong tag)
236 {
237 menter(jvmti, vm_death_lock); {
238 if ( !vm_death_active ) {
239 get_agent(jvmti)->object_free(jvmti, tag);
240 }
241 } mexit(jvmti, vm_death_lock);
242 }
243
244 /* Agent_OnLoad() is called first, we prepare for a VM_INIT event here. */
245 JNIEXPORT jint JNICALL
246 DEF_Agent_OnLoad(JavaVM *vm, char *options, void *reserved)
247 {
248 jvmtiEnv *jvmti;
249 jint rc;
250 jvmtiError err;
251 jvmtiCapabilities capabilities;
252 jvmtiEventCallbacks callbacks;
253
254 /* Get JVMTI environment */
255 rc = vm->GetEnv((void **)&jvmti, JVMTI_VERSION);
256 if (rc != JNI_OK) {
257 fatal_error("ERROR: Unable to create jvmtiEnv, GetEnv failed, error=%d\n", rc);
258 return -1;
259 }
260
261 /* Get/Add JVMTI capabilities */
262 (void)memset(&capabilities, 0, sizeof(capabilities));
263 capabilities.can_generate_monitor_events = 1;
264 capabilities.can_get_monitor_info = 1;
265 capabilities.can_tag_objects = 1;
266 capabilities.can_generate_object_free_events = 1;
271 memset(&callbacks, 0, sizeof(callbacks));
272 callbacks.VMInit = &vm_init;
273 callbacks.VMDeath = &vm_death;
274 callbacks.ThreadStart = &thread_start;
275 callbacks.ThreadEnd = &thread_end;
276 callbacks.MonitorContendedEnter = &monitor_contended_enter;
277 callbacks.MonitorContendedEntered = &monitor_contended_entered;
278 callbacks.MonitorWait = &monitor_wait;
279 callbacks.MonitorWaited = &monitor_waited;
280 callbacks.ObjectFree = &object_free;
281 err = jvmti->SetEventCallbacks(&callbacks, (jint)sizeof(callbacks));
282 check_jvmti_error(jvmti, err, "set event callbacks");
283 err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
284 JVMTI_EVENT_VM_INIT, NULL);
285 check_jvmti_error(jvmti, err, "set event notify");
286 return 0;
287 }
288
289 /* Agent_OnUnload() is called last */
290 JNIEXPORT void JNICALL
291 DEF_Agent_OnUnload(JavaVM *vm)
292 {
293 }
294
295 } /* of extern "C" */
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