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      1 /*
      2  * Copyright (c) 1998, 2006, 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 #ifndef JDWP_EVENTHANDLER_H
     27 #define JDWP_EVENTHANDLER_H
     28 
     29 #include "bag.h"
     30 
     31 typedef jint HandlerID;
     32 
     33 /* structure is read-only for users */
     34 typedef struct HandlerNode_ {
     35     HandlerID handlerID;
     36     EventIndex ei;
     37     jbyte suspendPolicy;
     38     jboolean permanent;
     39     int needReturnValue;
     40 } HandlerNode;
     41 
     42 typedef void (*HandlerFunction)(JNIEnv *env,
     43                                 EventInfo *evinfo,
     44                                 HandlerNode *node,
     45                                 struct bag *eventBag);
     46 
     47 /***** HandlerNode create = alloc + install *****/
     48 
     49 HandlerNode *eventHandler_alloc(jint filterCount, EventIndex ei,
     50                                 jbyte suspendPolicy);
     51 HandlerID eventHandler_allocHandlerID(void);
     52 jvmtiError eventHandler_installExternal(HandlerNode *node);
     53 HandlerNode *eventHandler_createPermanentInternal(EventIndex ei,
     54                                                   HandlerFunction func);
     55 HandlerNode *eventHandler_createInternalThreadOnly(EventIndex ei,
     56                                                    HandlerFunction func,
     57                                                    jthread thread);
     58 HandlerNode *eventHandler_createInternalBreakpoint(HandlerFunction func,
     59                                                    jthread thread,
     60                                                    jclass clazz,
     61                                                    jmethodID method,
     62                                                    jlocation location);
     63 
     64 /***** HandlerNode free *****/
     65 
     66 jvmtiError eventHandler_freeAll(EventIndex ei);
     67 jvmtiError eventHandler_freeByID(EventIndex ei, HandlerID handlerID);
     68 jvmtiError eventHandler_free(HandlerNode *node);
     69 void eventHandler_freeClassBreakpoints(jclass clazz);
     70 
     71 /***** HandlerNode manipulation *****/
     72 
     73 void eventHandler_initialize(jbyte sessionID);
     74 void eventHandler_reset(jbyte sessionID);
     75 
     76 void eventHandler_lock(void);
     77 void eventHandler_unlock(void);
     78 
     79 
     80 jclass getMethodClass(jvmtiEnv *jvmti_env, jmethodID method);
     81 
     82 #endif /* _EVENTHANDLER_H */
     83