J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2005 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include "util.h" |
| 27 | #include "ObjectReferenceImpl.h" |
| 28 | #include "commonRef.h" |
| 29 | #include "inStream.h" |
| 30 | #include "outStream.h" |
| 31 | |
| 32 | static jboolean |
| 33 | referenceType(PacketInputStream *in, PacketOutputStream *out) |
| 34 | { |
| 35 | JNIEnv *env; |
| 36 | jobject object; |
| 37 | |
| 38 | env = getEnv(); |
| 39 | |
| 40 | object = inStream_readObjectRef(env, in); |
| 41 | if (inStream_error(in)) { |
| 42 | return JNI_TRUE; |
| 43 | } |
| 44 | |
| 45 | WITH_LOCAL_REFS(env, 1) { |
| 46 | |
| 47 | jbyte tag; |
| 48 | jclass clazz; |
| 49 | |
| 50 | clazz = JNI_FUNC_PTR(env,GetObjectClass)(env, object); |
| 51 | tag = referenceTypeTag(clazz); |
| 52 | |
| 53 | (void)outStream_writeByte(out, tag); |
| 54 | (void)outStream_writeObjectRef(env, out, clazz); |
| 55 | |
| 56 | } END_WITH_LOCAL_REFS(env); |
| 57 | |
| 58 | return JNI_TRUE; |
| 59 | } |
| 60 | |
| 61 | static jboolean |
| 62 | getValues(PacketInputStream *in, PacketOutputStream *out) |
| 63 | { |
| 64 | sharedGetFieldValues(in, out, JNI_FALSE); |
| 65 | return JNI_TRUE; |
| 66 | } |
| 67 | |
| 68 | |
| 69 | static jvmtiError |
| 70 | readFieldValue(JNIEnv *env, PacketInputStream *in, jclass clazz, |
| 71 | jobject object, jfieldID field, char *signature) |
| 72 | { |
| 73 | jvalue value; |
| 74 | jvmtiError error; |
| 75 | |
| 76 | switch (signature[0]) { |
| 77 | case JDWP_TAG(ARRAY): |
| 78 | case JDWP_TAG(OBJECT): |
| 79 | value.l = inStream_readObjectRef(env, in); |
| 80 | JNI_FUNC_PTR(env,SetObjectField)(env, object, field, value.l); |
| 81 | break; |
| 82 | |
| 83 | case JDWP_TAG(BYTE): |
| 84 | value.b = inStream_readByte(in); |
| 85 | JNI_FUNC_PTR(env,SetByteField)(env, object, field, value.b); |
| 86 | break; |
| 87 | |
| 88 | case JDWP_TAG(CHAR): |
| 89 | value.c = inStream_readChar(in); |
| 90 | JNI_FUNC_PTR(env,SetCharField)(env, object, field, value.c); |
| 91 | break; |
| 92 | |
| 93 | case JDWP_TAG(FLOAT): |
| 94 | value.f = inStream_readFloat(in); |
| 95 | JNI_FUNC_PTR(env,SetFloatField)(env, object, field, value.f); |
| 96 | break; |
| 97 | |
| 98 | case JDWP_TAG(DOUBLE): |
| 99 | value.d = inStream_readDouble(in); |
| 100 | JNI_FUNC_PTR(env,SetDoubleField)(env, object, field, value.d); |
| 101 | break; |
| 102 | |
| 103 | case JDWP_TAG(INT): |
| 104 | value.i = inStream_readInt(in); |
| 105 | JNI_FUNC_PTR(env,SetIntField)(env, object, field, value.i); |
| 106 | break; |
| 107 | |
| 108 | case JDWP_TAG(LONG): |
| 109 | value.j = inStream_readLong(in); |
| 110 | JNI_FUNC_PTR(env,SetLongField)(env, object, field, value.j); |
| 111 | break; |
| 112 | |
| 113 | case JDWP_TAG(SHORT): |
| 114 | value.s = inStream_readShort(in); |
| 115 | JNI_FUNC_PTR(env,SetShortField)(env, object, field, value.s); |
| 116 | break; |
| 117 | |
| 118 | case JDWP_TAG(BOOLEAN): |
| 119 | value.z = inStream_readBoolean(in); |
| 120 | JNI_FUNC_PTR(env,SetBooleanField)(env, object, field, value.z); |
| 121 | break; |
| 122 | } |
| 123 | |
| 124 | error = JVMTI_ERROR_NONE; |
| 125 | if (JNI_FUNC_PTR(env,ExceptionOccurred)(env)) { |
| 126 | error = AGENT_ERROR_JNI_EXCEPTION; |
| 127 | } |
| 128 | |
| 129 | return error; |
| 130 | } |
| 131 | |
| 132 | static jboolean |
| 133 | setValues(PacketInputStream *in, PacketOutputStream *out) |
| 134 | { |
| 135 | JNIEnv *env; |
| 136 | jint count; |
| 137 | jvmtiError error; |
| 138 | jobject object; |
| 139 | |
| 140 | env = getEnv(); |
| 141 | |
| 142 | object = inStream_readObjectRef(env, in); |
| 143 | if (inStream_error(in)) { |
| 144 | return JNI_TRUE; |
| 145 | } |
| 146 | count = inStream_readInt(in); |
| 147 | if (inStream_error(in)) { |
| 148 | return JNI_TRUE; |
| 149 | } |
| 150 | |
| 151 | error = JVMTI_ERROR_NONE; |
| 152 | |
| 153 | WITH_LOCAL_REFS(env, count + 1) { |
| 154 | |
| 155 | jclass clazz; |
| 156 | |
| 157 | clazz = JNI_FUNC_PTR(env,GetObjectClass)(env, object); |
| 158 | |
| 159 | if (clazz != NULL ) { |
| 160 | |
| 161 | int i; |
| 162 | |
| 163 | for (i = 0; (i < count) && !inStream_error(in); i++) { |
| 164 | |
| 165 | jfieldID field; |
| 166 | char *signature = NULL; |
| 167 | |
| 168 | field = inStream_readFieldID(in); |
| 169 | if (inStream_error(in)) |
| 170 | break; |
| 171 | |
| 172 | error = fieldSignature(clazz, field, NULL, &signature, NULL); |
| 173 | if (error != JVMTI_ERROR_NONE) { |
| 174 | break; |
| 175 | } |
| 176 | |
| 177 | error = readFieldValue(env, in, clazz, object, field, signature); |
| 178 | jvmtiDeallocate(signature); |
| 179 | |
| 180 | if (error != JVMTI_ERROR_NONE) { |
| 181 | break; |
| 182 | } |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | if (error != JVMTI_ERROR_NONE) { |
| 187 | outStream_setError(out, map2jdwpError(error)); |
| 188 | } |
| 189 | |
| 190 | } END_WITH_LOCAL_REFS(env); |
| 191 | |
| 192 | return JNI_TRUE; |
| 193 | } |
| 194 | |
| 195 | static jboolean |
| 196 | monitorInfo(PacketInputStream *in, PacketOutputStream *out) |
| 197 | { |
| 198 | JNIEnv *env; |
| 199 | jobject object; |
| 200 | |
| 201 | env = getEnv(); |
| 202 | |
| 203 | object = inStream_readObjectRef(env, in); |
| 204 | if (inStream_error(in)) { |
| 205 | return JNI_TRUE; |
| 206 | } |
| 207 | |
| 208 | WITH_LOCAL_REFS(env, 1) { |
| 209 | |
| 210 | jvmtiError error; |
| 211 | jvmtiMonitorUsage info; |
| 212 | |
| 213 | (void)memset(&info, 0, sizeof(info)); |
| 214 | error = JVMTI_FUNC_PTR(gdata->jvmti,GetObjectMonitorUsage) |
| 215 | (gdata->jvmti, object, &info); |
| 216 | if (error != JVMTI_ERROR_NONE) { |
| 217 | outStream_setError(out, map2jdwpError(error)); |
| 218 | } else { |
| 219 | int i; |
| 220 | (void)outStream_writeObjectRef(env, out, info.owner); |
| 221 | (void)outStream_writeInt(out, info.entry_count); |
| 222 | (void)outStream_writeInt(out, info.waiter_count); |
| 223 | for (i = 0; i < info.waiter_count; i++) { |
| 224 | (void)outStream_writeObjectRef(env, out, info.waiters[i]); |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | if (info.waiters != NULL ) |
| 229 | jvmtiDeallocate(info.waiters); |
| 230 | |
| 231 | } END_WITH_LOCAL_REFS(env); |
| 232 | |
| 233 | return JNI_TRUE; |
| 234 | } |
| 235 | |
| 236 | static jboolean |
| 237 | invokeInstance(PacketInputStream *in, PacketOutputStream *out) |
| 238 | { |
| 239 | return sharedInvoke(in, out); |
| 240 | } |
| 241 | |
| 242 | static jboolean |
| 243 | disableCollection(PacketInputStream *in, PacketOutputStream *out) |
| 244 | { |
| 245 | jlong id; |
| 246 | jvmtiError error; |
| 247 | |
| 248 | id = inStream_readObjectID(in); |
| 249 | if (inStream_error(in)) { |
| 250 | return JNI_TRUE; |
| 251 | } |
| 252 | |
| 253 | error = commonRef_pin(id); |
| 254 | if (error != JVMTI_ERROR_NONE) { |
| 255 | outStream_setError(out, map2jdwpError(error)); |
| 256 | } |
| 257 | |
| 258 | return JNI_TRUE; |
| 259 | } |
| 260 | |
| 261 | static jboolean |
| 262 | enableCollection(PacketInputStream *in, PacketOutputStream *out) |
| 263 | { |
| 264 | jvmtiError error; |
| 265 | jlong id; |
| 266 | |
| 267 | id = inStream_readObjectID(in); |
| 268 | if (inStream_error(in)) { |
| 269 | return JNI_TRUE; |
| 270 | } |
| 271 | |
| 272 | error = commonRef_unpin(id); |
| 273 | if (error != JVMTI_ERROR_NONE) { |
| 274 | outStream_setError(out, map2jdwpError(error)); |
| 275 | } |
| 276 | |
| 277 | return JNI_TRUE; |
| 278 | } |
| 279 | |
| 280 | static jboolean |
| 281 | isCollected(PacketInputStream *in, PacketOutputStream *out) |
| 282 | { |
| 283 | jobject ref; |
| 284 | jlong id; |
| 285 | JNIEnv *env; |
| 286 | |
| 287 | env = getEnv(); |
| 288 | id = inStream_readObjectID(in); |
| 289 | if (inStream_error(in)) { |
| 290 | return JNI_TRUE; |
| 291 | } |
| 292 | |
| 293 | if (id == NULL_OBJECT_ID) { |
| 294 | outStream_setError(out, JDWP_ERROR(INVALID_OBJECT)); |
| 295 | return JNI_TRUE; |
| 296 | } |
| 297 | |
| 298 | ref = commonRef_idToRef(env, id); |
| 299 | (void)outStream_writeBoolean(out, (jboolean)(ref == NULL)); |
| 300 | |
| 301 | commonRef_idToRef_delete(env, ref); |
| 302 | |
| 303 | return JNI_TRUE; |
| 304 | } |
| 305 | |
| 306 | |
| 307 | static jboolean |
| 308 | referringObjects(PacketInputStream *in, PacketOutputStream *out) |
| 309 | { |
| 310 | jobject object; |
| 311 | jint maxReferrers; |
| 312 | JNIEnv *env; |
| 313 | |
| 314 | env = getEnv(); |
| 315 | |
| 316 | if (gdata->vmDead) { |
| 317 | outStream_setError(out, JDWP_ERROR(VM_DEAD)); |
| 318 | return JNI_TRUE; |
| 319 | } |
| 320 | |
| 321 | object = inStream_readObjectRef(env,in); |
| 322 | if (inStream_error(in)) { |
| 323 | return JNI_TRUE; |
| 324 | } |
| 325 | |
| 326 | maxReferrers = inStream_readInt(in); |
| 327 | if (inStream_error(in)) { |
| 328 | return JNI_TRUE; |
| 329 | } |
| 330 | |
| 331 | WITH_LOCAL_REFS(env, 1) { |
| 332 | jvmtiError error; |
| 333 | ObjectBatch referrerBatch; |
| 334 | |
| 335 | error = objectReferrers(object, &referrerBatch, maxReferrers); |
| 336 | if (error != JVMTI_ERROR_NONE) { |
| 337 | outStream_setError(out, map2jdwpError(error)); |
| 338 | } else { |
| 339 | int kk; |
| 340 | |
| 341 | (void)outStream_writeInt(out, referrerBatch.count); |
| 342 | for (kk = 0; kk < referrerBatch.count; kk++) { |
| 343 | jobject ref; |
| 344 | |
| 345 | ref = referrerBatch.objects[kk]; |
| 346 | (void)outStream_writeByte(out, specificTypeKey(env, ref)); |
| 347 | (void)outStream_writeObjectRef(env, out, ref); |
| 348 | } |
| 349 | jvmtiDeallocate(referrerBatch.objects); |
| 350 | } |
| 351 | } END_WITH_LOCAL_REFS(env); |
| 352 | return JNI_TRUE; |
| 353 | } |
| 354 | |
| 355 | void *ObjectReference_Cmds[] = { (void *)10 |
| 356 | ,(void *)referenceType |
| 357 | ,(void *)getValues |
| 358 | ,(void *)setValues |
| 359 | ,(void *)NULL /* no longer used */ |
| 360 | ,(void *)monitorInfo |
| 361 | ,(void *)invokeInstance |
| 362 | ,(void *)disableCollection |
| 363 | ,(void *)enableCollection |
| 364 | ,(void *)isCollected |
| 365 | ,(void *)referringObjects |
| 366 | }; |