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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 /*
     17  * Handle registration of events, and debugger event notification.
     18  */
     19 #ifndef ART_RUNTIME_JDWP_JDWP_EVENT_H_
     20 #define ART_RUNTIME_JDWP_JDWP_EVENT_H_
     21 
     22 #include "jdwp/jdwp.h"
     23 #include "jdwp/jdwp_constants.h"
     24 #include "jdwp/jdwp_expand_buf.h"
     25 
     26 namespace art {
     27 
     28 namespace JDWP {
     29 
     30 /*
     31  * Event modifiers.  A JdwpEvent may have zero or more of these.
     32  */
     33 union JdwpEventMod {
     34   JdwpModKind modKind;
     35   struct {
     36     JdwpModKind modKind;
     37     int         count;
     38   } count;
     39   struct {
     40     JdwpModKind modKind;
     41     uint32_t          exprId;
     42   } conditional;
     43   struct {
     44     JdwpModKind modKind;
     45     ObjectId    threadId;
     46   } threadOnly;
     47   struct {
     48     JdwpModKind modKind;
     49     RefTypeId   refTypeId;
     50   } classOnly;
     51   struct {
     52     JdwpModKind modKind;
     53     char*       classPattern;
     54   } classMatch;
     55   struct {
     56     JdwpModKind modKind;
     57     char*       classPattern;
     58   } classExclude;
     59   struct {
     60     JdwpModKind modKind;
     61     JdwpLocation loc;
     62   } locationOnly;
     63   struct {
     64     JdwpModKind modKind;
     65     uint8_t          caught;
     66     uint8_t          uncaught;
     67     RefTypeId   refTypeId;
     68   } exceptionOnly;
     69   struct {
     70     JdwpModKind modKind;
     71     RefTypeId   refTypeId;
     72     FieldId     fieldId;
     73   } fieldOnly;
     74   struct {
     75     JdwpModKind modKind;
     76     ObjectId    threadId;
     77     int         size;           /* JdwpStepSize */
     78     int         depth;          /* JdwpStepDepth */
     79   } step;
     80   struct {
     81     JdwpModKind modKind;
     82     ObjectId    objectId;
     83   } instanceOnly;
     84 };
     85 
     86 /*
     87  * One of these for every registered event.
     88  *
     89  * We over-allocate the struct to hold the modifiers.
     90  */
     91 struct JdwpEvent {
     92   JdwpEvent* prev;           /* linked list */
     93   JdwpEvent* next;
     94 
     95   JdwpEventKind eventKind;      /* what kind of event is this? */
     96   JdwpSuspendPolicy suspend_policy;  /* suspend all, none, or self? */
     97   int modCount;       /* #of entries in mods[] */
     98   uint32_t requestId;      /* serial#, reported to debugger */
     99 
    100   JdwpEventMod mods[1];        /* MUST be last field in struct */
    101 };
    102 
    103 /*
    104  * Allocate an event structure with enough space.
    105  */
    106 JdwpEvent* EventAlloc(int numMods);
    107 void EventFree(JdwpEvent* pEvent);
    108 
    109 }  // namespace JDWP
    110 
    111 }  // namespace art
    112 
    113 #endif  // ART_RUNTIME_JDWP_JDWP_EVENT_H_
    114