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annotate src/share/vm/prims/jvmtiEventController.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_PRIMS_JVMTIEVENTCONTROLLER_HPP |
| 26 #define SHARE_VM_PRIMS_JVMTIEVENTCONTROLLER_HPP | |
| 27 | |
| 28 #include "jvmtifiles/jvmti.h" | |
| 29 #include "memory/allocation.hpp" | |
| 30 #include "memory/allocation.inline.hpp" | |
| 31 #include "utilities/globalDefinitions.hpp" | |
| 0 | 32 |
| 33 // forward declaration | |
| 34 class JvmtiEventControllerPrivate; | |
| 35 class JvmtiEventController; | |
| 36 class JvmtiEnvThreadState; | |
| 37 class JvmtiFramePop; | |
| 38 class JvmtiEnvBase; | |
| 39 | |
| 40 | |
| 41 // Extension event support | |
| 42 // | |
| 43 // jvmtiExtEvent is the extensions equivalent of jvmtiEvent | |
| 44 // jvmtiExtCallbacks is the extensions equivalent of jvmtiEventCallbacks | |
| 45 | |
| 46 // Extension events start JVMTI_MIN_EVENT_TYPE_VAL-1 and work towards 0. | |
| 47 typedef enum { | |
| 48 EXT_EVENT_CLASS_UNLOAD = JVMTI_MIN_EVENT_TYPE_VAL-1, | |
| 49 EXT_MIN_EVENT_TYPE_VAL = EXT_EVENT_CLASS_UNLOAD, | |
| 50 EXT_MAX_EVENT_TYPE_VAL = EXT_EVENT_CLASS_UNLOAD | |
| 51 } jvmtiExtEvent; | |
| 52 | |
| 53 typedef struct { | |
| 54 jvmtiExtensionEvent ClassUnload; | |
| 55 } jvmtiExtEventCallbacks; | |
| 56 | |
| 57 | |
| 58 // The complete range of events is EXT_MIN_EVENT_TYPE_VAL to | |
| 59 // JVMTI_MAX_EVENT_TYPE_VAL (inclusive and contiguous). | |
| 60 const int TOTAL_MIN_EVENT_TYPE_VAL = EXT_MIN_EVENT_TYPE_VAL; | |
| 61 const int TOTAL_MAX_EVENT_TYPE_VAL = JVMTI_MAX_EVENT_TYPE_VAL; | |
| 62 | |
| 63 | |
| 64 /////////////////////////////////////////////////////////////// | |
| 65 // | |
| 66 // JvmtiEventEnabled | |
| 67 // | |
| 68 // Utility class | |
| 69 // | |
| 70 // A boolean array indexed by event_type, used as an internal | |
| 71 // data structure to track what JVMTI event types are enabled. | |
| 72 // Used for user set enabling and disabling (globally and on a | |
| 73 // per thread basis), and for computed merges across environments, | |
| 74 // threads and the VM as a whole. | |
| 75 // | |
| 76 // for inlines see jvmtiEventController_inline.hpp | |
| 77 // | |
| 78 | |
| 79 class JvmtiEventEnabled VALUE_OBJ_CLASS_SPEC { | |
| 80 private: | |
| 81 friend class JvmtiEventControllerPrivate; | |
| 82 jlong _enabled_bits; | |
| 83 #ifndef PRODUCT | |
| 84 enum { | |
| 85 JEE_INIT_GUARD = 0xEAD0 | |
| 86 } _init_guard; | |
| 87 #endif | |
| 88 static jlong bit_for(jvmtiEvent event_type); | |
| 89 jlong get_bits(); | |
| 90 void set_bits(jlong bits); | |
| 91 public: | |
| 92 JvmtiEventEnabled(); | |
| 93 void clear(); | |
| 94 bool is_enabled(jvmtiEvent event_type); | |
| 95 void set_enabled(jvmtiEvent event_type, bool enabled); | |
| 96 }; | |
| 97 | |
| 98 | |
| 99 /////////////////////////////////////////////////////////////// | |
| 100 // | |
| 101 // JvmtiEnvThreadEventEnable | |
| 102 // | |
| 103 // JvmtiEventController data specific to a particular environment and thread. | |
| 104 // | |
| 105 // for inlines see jvmtiEventController_inline.hpp | |
| 106 // | |
| 107 | |
| 108 class JvmtiEnvThreadEventEnable VALUE_OBJ_CLASS_SPEC { | |
| 109 private: | |
| 110 friend class JvmtiEventControllerPrivate; | |
| 111 JvmtiEventEnabled _event_user_enabled; | |
| 112 JvmtiEventEnabled _event_enabled; | |
| 113 | |
| 114 public: | |
| 115 JvmtiEnvThreadEventEnable(); | |
| 116 ~JvmtiEnvThreadEventEnable(); | |
| 117 bool is_enabled(jvmtiEvent event_type); | |
| 118 void set_user_enabled(jvmtiEvent event_type, bool enabled); | |
| 119 }; | |
| 120 | |
| 121 | |
| 122 /////////////////////////////////////////////////////////////// | |
| 123 // | |
| 124 // JvmtiThreadEventEnable | |
| 125 // | |
| 126 // JvmtiEventController data specific to a particular thread. | |
| 127 // | |
| 128 // for inlines see jvmtiEventController_inline.hpp | |
| 129 // | |
| 130 | |
| 131 class JvmtiThreadEventEnable VALUE_OBJ_CLASS_SPEC { | |
| 132 private: | |
| 133 friend class JvmtiEventControllerPrivate; | |
| 134 JvmtiEventEnabled _event_enabled; | |
| 135 | |
| 136 public: | |
| 137 JvmtiThreadEventEnable(); | |
| 138 ~JvmtiThreadEventEnable(); | |
| 139 bool is_enabled(jvmtiEvent event_type); | |
| 140 }; | |
| 141 | |
| 142 | |
| 143 /////////////////////////////////////////////////////////////// | |
| 144 // | |
| 145 // JvmtiEnvEventEnable | |
| 146 // | |
| 147 // JvmtiEventController data specific to a particular environment. | |
| 148 // | |
| 149 // for inlines see jvmtiEventController_inline.hpp | |
| 150 // | |
| 151 | |
| 152 class JvmtiEnvEventEnable VALUE_OBJ_CLASS_SPEC { | |
| 153 private: | |
| 154 friend class JvmtiEventControllerPrivate; | |
| 155 | |
| 156 // user set global event enablement indexed by jvmtiEvent | |
| 157 JvmtiEventEnabled _event_user_enabled; | |
| 158 | |
| 159 // this flag indicates the presence (true) or absence (false) of event callbacks | |
| 160 // it is indexed by jvmtiEvent | |
| 161 JvmtiEventEnabled _event_callback_enabled; | |
| 162 | |
| 163 // indexed by jvmtiEvent true if enabled globally or on any thread. | |
| 164 // True only if there is a callback for it. | |
| 165 JvmtiEventEnabled _event_enabled; | |
| 166 | |
| 167 public: | |
| 168 JvmtiEnvEventEnable(); | |
| 169 ~JvmtiEnvEventEnable(); | |
| 170 bool is_enabled(jvmtiEvent event_type); | |
| 171 void set_user_enabled(jvmtiEvent event_type, bool enabled); | |
| 172 }; | |
| 173 | |
| 174 | |
| 175 /////////////////////////////////////////////////////////////// | |
| 176 // | |
| 177 // JvmtiEventController | |
| 178 // | |
| 179 // The class is the access point for all actions that change | |
| 180 // which events are active, this include: | |
| 181 // enabling and disabling events | |
| 182 // changing the callbacks/eventhook (they may be null) | |
| 183 // setting and clearing field watchpoints | |
| 184 // setting frame pops | |
| 185 // encountering frame pops | |
| 186 // | |
| 187 // for inlines see jvmtiEventController_inline.hpp | |
| 188 // | |
| 189 | |
| 190 class JvmtiEventController : AllStatic { | |
| 191 private: | |
| 192 friend class JvmtiEventControllerPrivate; | |
| 193 | |
| 194 // for all environments, global array indexed by jvmtiEvent | |
| 195 static JvmtiEventEnabled _universal_global_event_enabled; | |
| 196 | |
| 197 public: | |
| 198 static bool is_enabled(jvmtiEvent event_type); | |
| 199 | |
| 200 // events that can ONLY be enabled/disabled globally (can't toggle on individual threads). | |
| 201 static bool is_global_event(jvmtiEvent event_type); | |
| 202 | |
| 203 // is the event_type valid? | |
| 204 // to do: check against valid event array | |
| 205 static bool is_valid_event_type(jvmtiEvent event_type) { | |
| 206 return ((int)event_type >= TOTAL_MIN_EVENT_TYPE_VAL) | |
| 207 && ((int)event_type <= TOTAL_MAX_EVENT_TYPE_VAL); | |
| 208 } | |
| 209 | |
| 210 // Use (thread == NULL) to enable/disable an event globally. | |
| 211 // Use (thread != NULL) to enable/disable an event for a particular thread. | |
| 212 // thread is ignored for events that can only be specified globally | |
| 213 static void set_user_enabled(JvmtiEnvBase *env, JavaThread *thread, | |
| 214 jvmtiEvent event_type, bool enabled); | |
| 215 | |
| 216 // Setting callbacks changes computed enablement and must be done | |
| 217 // at a safepoint otherwise a NULL callback could be attempted | |
| 218 static void set_event_callbacks(JvmtiEnvBase *env, | |
| 219 const jvmtiEventCallbacks* callbacks, | |
| 220 jint size_of_callbacks); | |
| 221 | |
| 222 // Sets the callback function for a single extension event and enables | |
| 223 // (or disables it). | |
| 224 static void set_extension_event_callback(JvmtiEnvBase* env, | |
| 225 jint extension_event_index, | |
| 226 jvmtiExtensionEvent callback); | |
| 227 | |
| 228 static void set_frame_pop(JvmtiEnvThreadState *env_thread, JvmtiFramePop fpop); | |
| 229 static void clear_frame_pop(JvmtiEnvThreadState *env_thread, JvmtiFramePop fpop); | |
| 230 static void clear_to_frame_pop(JvmtiEnvThreadState *env_thread, JvmtiFramePop fpop); | |
| 231 | |
| 232 static void change_field_watch(jvmtiEvent event_type, bool added); | |
| 233 | |
| 234 static void thread_started(JavaThread *thread); | |
| 235 static void thread_ended(JavaThread *thread); | |
| 236 | |
| 237 static void env_initialize(JvmtiEnvBase *env); | |
| 238 static void env_dispose(JvmtiEnvBase *env); | |
| 239 | |
| 240 static void vm_start(); | |
| 241 static void vm_init(); | |
| 242 static void vm_death(); | |
| 243 }; | |
| 244 | |
| 1972 | 245 #endif // SHARE_VM_PRIMS_JVMTIEVENTCONTROLLER_HPP |