Mon, 15 Oct 2018 14:58:52 +0100
Merge
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_PRIMS_JVMTIEVENTCONTROLLER_HPP |
stefank@2314 | 26 | #define SHARE_VM_PRIMS_JVMTIEVENTCONTROLLER_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "jvmtifiles/jvmti.h" |
stefank@2314 | 29 | #include "memory/allocation.hpp" |
stefank@2314 | 30 | #include "memory/allocation.inline.hpp" |
stefank@2314 | 31 | #include "utilities/globalDefinitions.hpp" |
duke@435 | 32 | |
duke@435 | 33 | // forward declaration |
duke@435 | 34 | class JvmtiEventControllerPrivate; |
duke@435 | 35 | class JvmtiEventController; |
duke@435 | 36 | class JvmtiEnvThreadState; |
duke@435 | 37 | class JvmtiFramePop; |
duke@435 | 38 | class JvmtiEnvBase; |
duke@435 | 39 | |
duke@435 | 40 | |
duke@435 | 41 | // Extension event support |
duke@435 | 42 | // |
duke@435 | 43 | // jvmtiExtEvent is the extensions equivalent of jvmtiEvent |
duke@435 | 44 | // jvmtiExtCallbacks is the extensions equivalent of jvmtiEventCallbacks |
duke@435 | 45 | |
duke@435 | 46 | // Extension events start JVMTI_MIN_EVENT_TYPE_VAL-1 and work towards 0. |
duke@435 | 47 | typedef enum { |
duke@435 | 48 | EXT_EVENT_CLASS_UNLOAD = JVMTI_MIN_EVENT_TYPE_VAL-1, |
duke@435 | 49 | EXT_MIN_EVENT_TYPE_VAL = EXT_EVENT_CLASS_UNLOAD, |
duke@435 | 50 | EXT_MAX_EVENT_TYPE_VAL = EXT_EVENT_CLASS_UNLOAD |
duke@435 | 51 | } jvmtiExtEvent; |
duke@435 | 52 | |
duke@435 | 53 | typedef struct { |
duke@435 | 54 | jvmtiExtensionEvent ClassUnload; |
duke@435 | 55 | } jvmtiExtEventCallbacks; |
duke@435 | 56 | |
duke@435 | 57 | |
duke@435 | 58 | // The complete range of events is EXT_MIN_EVENT_TYPE_VAL to |
duke@435 | 59 | // JVMTI_MAX_EVENT_TYPE_VAL (inclusive and contiguous). |
duke@435 | 60 | const int TOTAL_MIN_EVENT_TYPE_VAL = EXT_MIN_EVENT_TYPE_VAL; |
duke@435 | 61 | const int TOTAL_MAX_EVENT_TYPE_VAL = JVMTI_MAX_EVENT_TYPE_VAL; |
duke@435 | 62 | |
duke@435 | 63 | |
duke@435 | 64 | /////////////////////////////////////////////////////////////// |
duke@435 | 65 | // |
duke@435 | 66 | // JvmtiEventEnabled |
duke@435 | 67 | // |
duke@435 | 68 | // Utility class |
duke@435 | 69 | // |
duke@435 | 70 | // A boolean array indexed by event_type, used as an internal |
duke@435 | 71 | // data structure to track what JVMTI event types are enabled. |
duke@435 | 72 | // Used for user set enabling and disabling (globally and on a |
duke@435 | 73 | // per thread basis), and for computed merges across environments, |
duke@435 | 74 | // threads and the VM as a whole. |
duke@435 | 75 | // |
duke@435 | 76 | // for inlines see jvmtiEventController_inline.hpp |
duke@435 | 77 | // |
duke@435 | 78 | |
duke@435 | 79 | class JvmtiEventEnabled VALUE_OBJ_CLASS_SPEC { |
duke@435 | 80 | private: |
duke@435 | 81 | friend class JvmtiEventControllerPrivate; |
duke@435 | 82 | jlong _enabled_bits; |
duke@435 | 83 | #ifndef PRODUCT |
duke@435 | 84 | enum { |
duke@435 | 85 | JEE_INIT_GUARD = 0xEAD0 |
duke@435 | 86 | } _init_guard; |
duke@435 | 87 | #endif |
duke@435 | 88 | static jlong bit_for(jvmtiEvent event_type); |
duke@435 | 89 | jlong get_bits(); |
duke@435 | 90 | void set_bits(jlong bits); |
duke@435 | 91 | public: |
duke@435 | 92 | JvmtiEventEnabled(); |
duke@435 | 93 | void clear(); |
duke@435 | 94 | bool is_enabled(jvmtiEvent event_type); |
duke@435 | 95 | void set_enabled(jvmtiEvent event_type, bool enabled); |
duke@435 | 96 | }; |
duke@435 | 97 | |
duke@435 | 98 | |
duke@435 | 99 | /////////////////////////////////////////////////////////////// |
duke@435 | 100 | // |
duke@435 | 101 | // JvmtiEnvThreadEventEnable |
duke@435 | 102 | // |
duke@435 | 103 | // JvmtiEventController data specific to a particular environment and thread. |
duke@435 | 104 | // |
duke@435 | 105 | // for inlines see jvmtiEventController_inline.hpp |
duke@435 | 106 | // |
duke@435 | 107 | |
duke@435 | 108 | class JvmtiEnvThreadEventEnable VALUE_OBJ_CLASS_SPEC { |
duke@435 | 109 | private: |
duke@435 | 110 | friend class JvmtiEventControllerPrivate; |
duke@435 | 111 | JvmtiEventEnabled _event_user_enabled; |
duke@435 | 112 | JvmtiEventEnabled _event_enabled; |
duke@435 | 113 | |
duke@435 | 114 | public: |
duke@435 | 115 | JvmtiEnvThreadEventEnable(); |
duke@435 | 116 | ~JvmtiEnvThreadEventEnable(); |
duke@435 | 117 | bool is_enabled(jvmtiEvent event_type); |
duke@435 | 118 | void set_user_enabled(jvmtiEvent event_type, bool enabled); |
duke@435 | 119 | }; |
duke@435 | 120 | |
duke@435 | 121 | |
duke@435 | 122 | /////////////////////////////////////////////////////////////// |
duke@435 | 123 | // |
duke@435 | 124 | // JvmtiThreadEventEnable |
duke@435 | 125 | // |
duke@435 | 126 | // JvmtiEventController data specific to a particular thread. |
duke@435 | 127 | // |
duke@435 | 128 | // for inlines see jvmtiEventController_inline.hpp |
duke@435 | 129 | // |
duke@435 | 130 | |
duke@435 | 131 | class JvmtiThreadEventEnable VALUE_OBJ_CLASS_SPEC { |
duke@435 | 132 | private: |
duke@435 | 133 | friend class JvmtiEventControllerPrivate; |
duke@435 | 134 | JvmtiEventEnabled _event_enabled; |
duke@435 | 135 | |
duke@435 | 136 | public: |
duke@435 | 137 | JvmtiThreadEventEnable(); |
duke@435 | 138 | ~JvmtiThreadEventEnable(); |
duke@435 | 139 | bool is_enabled(jvmtiEvent event_type); |
duke@435 | 140 | }; |
duke@435 | 141 | |
duke@435 | 142 | |
duke@435 | 143 | /////////////////////////////////////////////////////////////// |
duke@435 | 144 | // |
duke@435 | 145 | // JvmtiEnvEventEnable |
duke@435 | 146 | // |
duke@435 | 147 | // JvmtiEventController data specific to a particular environment. |
duke@435 | 148 | // |
duke@435 | 149 | // for inlines see jvmtiEventController_inline.hpp |
duke@435 | 150 | // |
duke@435 | 151 | |
duke@435 | 152 | class JvmtiEnvEventEnable VALUE_OBJ_CLASS_SPEC { |
duke@435 | 153 | private: |
duke@435 | 154 | friend class JvmtiEventControllerPrivate; |
duke@435 | 155 | |
duke@435 | 156 | // user set global event enablement indexed by jvmtiEvent |
duke@435 | 157 | JvmtiEventEnabled _event_user_enabled; |
duke@435 | 158 | |
duke@435 | 159 | // this flag indicates the presence (true) or absence (false) of event callbacks |
duke@435 | 160 | // it is indexed by jvmtiEvent |
duke@435 | 161 | JvmtiEventEnabled _event_callback_enabled; |
duke@435 | 162 | |
duke@435 | 163 | // indexed by jvmtiEvent true if enabled globally or on any thread. |
duke@435 | 164 | // True only if there is a callback for it. |
duke@435 | 165 | JvmtiEventEnabled _event_enabled; |
duke@435 | 166 | |
duke@435 | 167 | public: |
duke@435 | 168 | JvmtiEnvEventEnable(); |
duke@435 | 169 | ~JvmtiEnvEventEnable(); |
duke@435 | 170 | bool is_enabled(jvmtiEvent event_type); |
duke@435 | 171 | void set_user_enabled(jvmtiEvent event_type, bool enabled); |
duke@435 | 172 | }; |
duke@435 | 173 | |
duke@435 | 174 | |
duke@435 | 175 | /////////////////////////////////////////////////////////////// |
duke@435 | 176 | // |
duke@435 | 177 | // JvmtiEventController |
duke@435 | 178 | // |
duke@435 | 179 | // The class is the access point for all actions that change |
duke@435 | 180 | // which events are active, this include: |
duke@435 | 181 | // enabling and disabling events |
duke@435 | 182 | // changing the callbacks/eventhook (they may be null) |
duke@435 | 183 | // setting and clearing field watchpoints |
duke@435 | 184 | // setting frame pops |
duke@435 | 185 | // encountering frame pops |
duke@435 | 186 | // |
duke@435 | 187 | // for inlines see jvmtiEventController_inline.hpp |
duke@435 | 188 | // |
duke@435 | 189 | |
duke@435 | 190 | class JvmtiEventController : AllStatic { |
duke@435 | 191 | private: |
duke@435 | 192 | friend class JvmtiEventControllerPrivate; |
duke@435 | 193 | |
duke@435 | 194 | // for all environments, global array indexed by jvmtiEvent |
duke@435 | 195 | static JvmtiEventEnabled _universal_global_event_enabled; |
duke@435 | 196 | |
duke@435 | 197 | public: |
duke@435 | 198 | static bool is_enabled(jvmtiEvent event_type); |
duke@435 | 199 | |
duke@435 | 200 | // events that can ONLY be enabled/disabled globally (can't toggle on individual threads). |
duke@435 | 201 | static bool is_global_event(jvmtiEvent event_type); |
duke@435 | 202 | |
duke@435 | 203 | // is the event_type valid? |
duke@435 | 204 | // to do: check against valid event array |
duke@435 | 205 | static bool is_valid_event_type(jvmtiEvent event_type) { |
duke@435 | 206 | return ((int)event_type >= TOTAL_MIN_EVENT_TYPE_VAL) |
duke@435 | 207 | && ((int)event_type <= TOTAL_MAX_EVENT_TYPE_VAL); |
duke@435 | 208 | } |
duke@435 | 209 | |
duke@435 | 210 | // Use (thread == NULL) to enable/disable an event globally. |
duke@435 | 211 | // Use (thread != NULL) to enable/disable an event for a particular thread. |
duke@435 | 212 | // thread is ignored for events that can only be specified globally |
duke@435 | 213 | static void set_user_enabled(JvmtiEnvBase *env, JavaThread *thread, |
duke@435 | 214 | jvmtiEvent event_type, bool enabled); |
duke@435 | 215 | |
duke@435 | 216 | // Setting callbacks changes computed enablement and must be done |
duke@435 | 217 | // at a safepoint otherwise a NULL callback could be attempted |
duke@435 | 218 | static void set_event_callbacks(JvmtiEnvBase *env, |
duke@435 | 219 | const jvmtiEventCallbacks* callbacks, |
duke@435 | 220 | jint size_of_callbacks); |
duke@435 | 221 | |
duke@435 | 222 | // Sets the callback function for a single extension event and enables |
duke@435 | 223 | // (or disables it). |
duke@435 | 224 | static void set_extension_event_callback(JvmtiEnvBase* env, |
duke@435 | 225 | jint extension_event_index, |
duke@435 | 226 | jvmtiExtensionEvent callback); |
duke@435 | 227 | |
duke@435 | 228 | static void set_frame_pop(JvmtiEnvThreadState *env_thread, JvmtiFramePop fpop); |
duke@435 | 229 | static void clear_frame_pop(JvmtiEnvThreadState *env_thread, JvmtiFramePop fpop); |
duke@435 | 230 | static void clear_to_frame_pop(JvmtiEnvThreadState *env_thread, JvmtiFramePop fpop); |
duke@435 | 231 | |
duke@435 | 232 | static void change_field_watch(jvmtiEvent event_type, bool added); |
duke@435 | 233 | |
duke@435 | 234 | static void thread_started(JavaThread *thread); |
duke@435 | 235 | static void thread_ended(JavaThread *thread); |
duke@435 | 236 | |
duke@435 | 237 | static void env_initialize(JvmtiEnvBase *env); |
duke@435 | 238 | static void env_dispose(JvmtiEnvBase *env); |
duke@435 | 239 | |
duke@435 | 240 | static void vm_start(); |
duke@435 | 241 | static void vm_init(); |
duke@435 | 242 | static void vm_death(); |
duke@435 | 243 | }; |
duke@435 | 244 | |
stefank@2314 | 245 | #endif // SHARE_VM_PRIMS_JVMTIEVENTCONTROLLER_HPP |