1 /*
   2  * Copyright (c) 1997, 2014, 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 _JAVASOFT_JVM_H_
  27 #define _JAVASOFT_JVM_H_
  28 
  29 #include <sys/stat.h>
  30 
  31 #include "jni.h"
  32 #include "jvm_md.h"
  33 
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37 
  38 /*
  39  * This file contains additional functions exported from the VM.
  40  * These functions are complementary to the standard JNI support.
  41  * There are three parts to this file:
  42  *
  43  * First, this file contains the VM-related functions needed by native
  44  * libraries in the standard Java API. For example, the java.lang.Object
  45  * class needs VM-level functions that wait for and notify monitors.
  46  *
  47  * Second, this file contains the functions and constant definitions
  48  * needed by the byte code verifier and class file format checker.
  49  * These functions allow the verifier and format checker to be written
  50  * in a VM-independent way.
  51  *
  52  * Third, this file contains various I/O and nerwork operations needed
  53  * by the standard Java I/O and network APIs.
  54  */
  55 
  56 /*
  57  * Bump the version number when either of the following happens:
  58  *
  59  * 1. There is a change in JVM_* functions.
  60  *
  61  * 2. There is a change in the contract between VM and Java classes.
  62  *    For example, if the VM relies on a new private field in Thread
  63  *    class.
  64  */
  65 
  66 #define JVM_INTERFACE_VERSION 4
  67 
  68 JNIEXPORT jint JNICALL
  69 JVM_GetInterfaceVersion(void);
  70 
  71 /*************************************************************************
  72  PART 1: Functions for Native Libraries
  73  ************************************************************************/
  74 /*
  75  * java.lang.Object
  76  */
  77 JNIEXPORT jint JNICALL
  78 JVM_IHashCode(JNIEnv *env, jobject obj);
  79 
  80 JNIEXPORT void JNICALL
  81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
  82 
  83 JNIEXPORT void JNICALL
  84 JVM_MonitorNotify(JNIEnv *env, jobject obj);
  85 
  86 JNIEXPORT void JNICALL
  87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
  88 
  89 JNIEXPORT jobject JNICALL
  90 JVM_Clone(JNIEnv *env, jobject obj);
  91 
  92 /*
  93  * java.lang.String
  94  */
  95 JNIEXPORT jstring JNICALL
  96 JVM_InternString(JNIEnv *env, jstring str);
  97 
  98 /*
  99  * java.lang.System
 100  */
 101 JNIEXPORT jlong JNICALL
 102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
 103 
 104 JNIEXPORT jlong JNICALL
 105 JVM_NanoTime(JNIEnv *env, jclass ignored);
 106 
 107 JNIEXPORT void JNICALL
 108 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
 109               jobject dst, jint dst_pos, jint length);
 110 
 111 JNIEXPORT jobject JNICALL
 112 JVM_InitProperties(JNIEnv *env, jobject p);
 113 
 114 /*
 115  * java.io.File
 116  */
 117 JNIEXPORT void JNICALL
 118 JVM_OnExit(void (*func)(void));
 119 
 120 /*
 121  * java.lang.Runtime
 122  */
 123 JNIEXPORT void JNICALL
 124 JVM_Exit(jint code);
 125 
 126 JNIEXPORT void JNICALL
 127 JVM_Halt(jint code);
 128 
 129 JNIEXPORT void JNICALL
 130 JVM_GC(void);
 131 
 132 /* Returns the number of real-time milliseconds that have elapsed since the
 133  * least-recently-inspected heap object was last inspected by the garbage
 134  * collector.
 135  *
 136  * For simple stop-the-world collectors this value is just the time
 137  * since the most recent collection.  For generational collectors it is the
 138  * time since the oldest generation was most recently collected.  Other
 139  * collectors are free to return a pessimistic estimate of the elapsed time, or
 140  * simply the time since the last full collection was performed.
 141  *
 142  * Note that in the presence of reference objects, a given object that is no
 143  * longer strongly reachable may have to be inspected multiple times before it
 144  * can be reclaimed.
 145  */
 146 JNIEXPORT jlong JNICALL
 147 JVM_MaxObjectInspectionAge(void);
 148 
 149 JNIEXPORT void JNICALL
 150 JVM_TraceInstructions(jboolean on);
 151 
 152 JNIEXPORT void JNICALL
 153 JVM_TraceMethodCalls(jboolean on);
 154 
 155 JNIEXPORT jlong JNICALL
 156 JVM_TotalMemory(void);
 157 
 158 JNIEXPORT jlong JNICALL
 159 JVM_FreeMemory(void);
 160 
 161 JNIEXPORT jlong JNICALL
 162 JVM_MaxMemory(void);
 163 
 164 JNIEXPORT jint JNICALL
 165 JVM_ActiveProcessorCount(void);
 166 
 167 JNIEXPORT void * JNICALL
 168 JVM_LoadLibrary(const char *name);
 169 
 170 JNIEXPORT void JNICALL
 171 JVM_UnloadLibrary(void * handle);
 172 
 173 JNIEXPORT void * JNICALL
 174 JVM_FindLibraryEntry(void *handle, const char *name);
 175 
 176 JNIEXPORT jboolean JNICALL
 177 JVM_IsSupportedJNIVersion(jint version);
 178 
 179 /*
 180  * java.lang.Float and java.lang.Double
 181  */
 182 JNIEXPORT jboolean JNICALL
 183 JVM_IsNaN(jdouble d);
 184 
 185 /*
 186  * java.lang.Throwable
 187  */
 188 JNIEXPORT void JNICALL
 189 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
 190 
 191 JNIEXPORT jint JNICALL
 192 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
 193 
 194 JNIEXPORT jobject JNICALL
 195 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
 196 
 197 /*
 198  * java.lang.Compiler
 199  */
 200 JNIEXPORT void JNICALL
 201 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
 202 
 203 JNIEXPORT jboolean JNICALL
 204 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
 205 
 206 JNIEXPORT jboolean JNICALL
 207 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
 208 
 209 JNIEXPORT jboolean JNICALL
 210 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
 211 
 212 JNIEXPORT jobject JNICALL
 213 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
 214 
 215 JNIEXPORT void JNICALL
 216 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
 217 
 218 JNIEXPORT void JNICALL
 219 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
 220 
 221 /*
 222  * java.lang.Thread
 223  */
 224 JNIEXPORT void JNICALL
 225 JVM_StartThread(JNIEnv *env, jobject thread);
 226 
 227 JNIEXPORT void JNICALL
 228 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
 229 
 230 JNIEXPORT jboolean JNICALL
 231 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
 232 
 233 JNIEXPORT void JNICALL
 234 JVM_SuspendThread(JNIEnv *env, jobject thread);
 235 
 236 JNIEXPORT void JNICALL
 237 JVM_ResumeThread(JNIEnv *env, jobject thread);
 238 
 239 JNIEXPORT void JNICALL
 240 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
 241 
 242 JNIEXPORT void JNICALL
 243 JVM_Yield(JNIEnv *env, jclass threadClass);
 244 
 245 JNIEXPORT void JNICALL
 246 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
 247 
 248 JNIEXPORT jobject JNICALL
 249 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
 250 
 251 JNIEXPORT jint JNICALL
 252 JVM_CountStackFrames(JNIEnv *env, jobject thread);
 253 
 254 JNIEXPORT void JNICALL
 255 JVM_Interrupt(JNIEnv *env, jobject thread);
 256 
 257 JNIEXPORT jboolean JNICALL
 258 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
 259 
 260 JNIEXPORT jboolean JNICALL
 261 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
 262 
 263 JNIEXPORT void JNICALL
 264 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
 265 
 266 JNIEXPORT jobjectArray JNICALL
 267 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
 268 
 269 JNIEXPORT void JNICALL
 270 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
 271 
 272 /* getStackTrace() and getAllStackTraces() method */
 273 JNIEXPORT jobjectArray JNICALL
 274 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
 275 
 276 /*
 277  * java.lang.SecurityManager
 278  */
 279 JNIEXPORT jclass JNICALL
 280 JVM_CurrentLoadedClass(JNIEnv *env);
 281 
 282 JNIEXPORT jobject JNICALL
 283 JVM_CurrentClassLoader(JNIEnv *env);
 284 
 285 JNIEXPORT jobjectArray JNICALL
 286 JVM_GetClassContext(JNIEnv *env);
 287 
 288 JNIEXPORT jint JNICALL
 289 JVM_ClassDepth(JNIEnv *env, jstring name);
 290 
 291 JNIEXPORT jint JNICALL
 292 JVM_ClassLoaderDepth(JNIEnv *env);
 293 
 294 /*
 295  * java.lang.Package
 296  */
 297 JNIEXPORT jstring JNICALL
 298 JVM_GetSystemPackage(JNIEnv *env, jstring name);
 299 
 300 JNIEXPORT jobjectArray JNICALL
 301 JVM_GetSystemPackages(JNIEnv *env);
 302 
 303 /*
 304  * java.io.ObjectInputStream
 305  */
 306 JNIEXPORT jobject JNICALL
 307 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
 308                       jclass initClass);
 309 
 310 JNIEXPORT jobject JNICALL
 311 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
 312                      jint length);
 313 
 314 JNIEXPORT jobject JNICALL
 315 JVM_LatestUserDefinedLoader(JNIEnv *env);
 316 
 317 /*
 318  * This function has been deprecated and should not be considered
 319  * part of the specified JVM interface.
 320  */
 321 JNIEXPORT jclass JNICALL
 322 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
 323                jstring currClassName);
 324 
 325 /*
 326  * java.lang.reflect.Array
 327  */
 328 JNIEXPORT jint JNICALL
 329 JVM_GetArrayLength(JNIEnv *env, jobject arr);
 330 
 331 JNIEXPORT jobject JNICALL
 332 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
 333 
 334 JNIEXPORT jvalue JNICALL
 335 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
 336 
 337 JNIEXPORT void JNICALL
 338 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
 339 
 340 JNIEXPORT void JNICALL
 341 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
 342                              unsigned char vCode);
 343 
 344 JNIEXPORT jobject JNICALL
 345 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
 346 
 347 JNIEXPORT jobject JNICALL
 348 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
 349 
 350 /*
 351  * java.lang.Class and java.lang.ClassLoader
 352  */
 353 
 354 #define JVM_CALLER_DEPTH -1
 355 
 356 /*
 357  * Returns the immediate caller class of the native method invoking
 358  * JVM_GetCallerClass.  The Method.invoke and other frames due to
 359  * reflection machinery are skipped.
 360  *
 361  * The depth parameter must be -1 (JVM_DEPTH). The caller is expected
 362  * to be marked with sun.reflect.CallerSensitive.  The JVM will throw
 363  * an error if it is not marked propertly.
 364  */
 365 JNIEXPORT jclass JNICALL
 366 JVM_GetCallerClass(JNIEnv *env, int depth);
 367 
 368 
 369 /*
 370  * Find primitive classes
 371  * utf: class name
 372  */
 373 JNIEXPORT jclass JNICALL
 374 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
 375 
 376 /*
 377  * Link the class
 378  */
 379 JNIEXPORT void JNICALL
 380 JVM_ResolveClass(JNIEnv *env, jclass cls);
 381 
 382 /*
 383  * Find a class from a boot class loader. Returns NULL if class not found.
 384  */
 385 JNIEXPORT jclass JNICALL
 386 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
 387 
 388 /*
 389  * Find a class from a given class loader. Throw ClassNotFoundException
 390  * or NoClassDefFoundError depending on the value of the last
 391  * argument.
 392  */
 393 JNIEXPORT jclass JNICALL
 394 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
 395                              jobject loader, jboolean throwError);
 396 
 397 /*
 398  * Find a class from a given class.
 399  */
 400 JNIEXPORT jclass JNICALL
 401 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
 402                              jclass from);
 403 
 404 /* Find a loaded class cached by the VM */
 405 JNIEXPORT jclass JNICALL
 406 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
 407 
 408 /* Define a class */
 409 JNIEXPORT jclass JNICALL
 410 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
 411                 jsize len, jobject pd);
 412 
 413 /* Define a class with a source (added in JDK1.5) */
 414 JNIEXPORT jclass JNICALL
 415 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
 416                           const jbyte *buf, jsize len, jobject pd,
 417                           const char *source);
 418 
 419 /*
 420  * Reflection support functions
 421  */
 422 
 423 JNIEXPORT jstring JNICALL
 424 JVM_GetClassName(JNIEnv *env, jclass cls);
 425 
 426 JNIEXPORT jobjectArray JNICALL
 427 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
 428 
 429 JNIEXPORT jboolean JNICALL
 430 JVM_IsInterface(JNIEnv *env, jclass cls);
 431 
 432 JNIEXPORT jobjectArray JNICALL
 433 JVM_GetClassSigners(JNIEnv *env, jclass cls);
 434 
 435 JNIEXPORT void JNICALL
 436 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
 437 
 438 JNIEXPORT jobject JNICALL
 439 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
 440 
 441 JNIEXPORT jboolean JNICALL
 442 JVM_IsArrayClass(JNIEnv *env, jclass cls);
 443 
 444 JNIEXPORT jboolean JNICALL
 445 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
 446 
 447 JNIEXPORT jint JNICALL
 448 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
 449 
 450 JNIEXPORT jobjectArray JNICALL
 451 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
 452 
 453 JNIEXPORT jclass JNICALL
 454 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
 455 
 456 /* Generics support (JDK 1.5) */
 457 JNIEXPORT jstring JNICALL
 458 JVM_GetClassSignature(JNIEnv *env, jclass cls);
 459 
 460 /* Annotations support (JDK 1.5) */
 461 JNIEXPORT jbyteArray JNICALL
 462 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
 463 
 464 /* Type use annotations support (JDK 1.8) */
 465 
 466 JNIEXPORT jbyteArray JNICALL
 467 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
 468 
 469 JNIEXPORT jbyteArray JNICALL
 470 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
 471 
 472 JNIEXPORT jbyteArray JNICALL
 473 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
 474 
 475 /*
 476  * New (JDK 1.4) reflection implementation
 477  */
 478 
 479 JNIEXPORT jobjectArray JNICALL
 480 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 481 
 482 JNIEXPORT jobjectArray JNICALL
 483 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 484 
 485 JNIEXPORT jobjectArray JNICALL
 486 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 487 
 488 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
 489    This returns the access flags for the class as specified in the
 490    class file rather than searching the InnerClasses attribute (if
 491    present) to find the source-level access flags. Only the values of
 492    the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
 493    valid. */
 494 JNIEXPORT jint JNICALL
 495 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
 496 
 497 /* The following two reflection routines are still needed due to startup time issues */
 498 /*
 499  * java.lang.reflect.Method
 500  */
 501 JNIEXPORT jobject JNICALL
 502 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
 503 
 504 /*
 505  * java.lang.reflect.Constructor
 506  */
 507 JNIEXPORT jobject JNICALL
 508 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
 509 
 510 /*
 511  * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
 512  */
 513 
 514 JNIEXPORT jobject JNICALL
 515 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
 516 
 517 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
 518 (JNIEnv *env, jobject unused, jobject jcpool);
 519 
 520 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
 521 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 522 
 523 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
 524 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 525 
 526 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
 527 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 528 
 529 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
 530 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 531 
 532 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
 533 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 534 
 535 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
 536 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 537 
 538 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
 539 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 540 
 541 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
 542 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 543 
 544 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
 545 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 546 
 547 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
 548 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 549 
 550 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
 551 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 552 
 553 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
 554 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 555 
 556 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
 557 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 558 
 559 /*
 560  * Parameter reflection
 561  */
 562 
 563 JNIEXPORT jobjectArray JNICALL
 564 JVM_GetMethodParameters(JNIEnv *env, jobject method);
 565 
 566 /*
 567  * java.security.*
 568  */
 569 
 570 JNIEXPORT jobject JNICALL
 571 JVM_DoPrivileged(JNIEnv *env, jclass cls,
 572                  jobject action, jobject context, jboolean wrapException);
 573 
 574 JNIEXPORT jobject JNICALL
 575 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
 576 
 577 JNIEXPORT jobject JNICALL
 578 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
 579 
 580 /*
 581  * Signal support, used to implement the shutdown sequence.  Every VM must
 582  * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
 583  * (^C) and the latter for external termination (kill, system shutdown, etc.).
 584  * Other platform-dependent signal values may also be supported.
 585  */
 586 
 587 JNIEXPORT void * JNICALL
 588 JVM_RegisterSignal(jint sig, void *handler);
 589 
 590 JNIEXPORT jboolean JNICALL
 591 JVM_RaiseSignal(jint sig);
 592 
 593 JNIEXPORT jint JNICALL
 594 JVM_FindSignal(const char *name);
 595 
 596 /*
 597  * Retrieve the assertion directives for the specified class.
 598  */
 599 JNIEXPORT jboolean JNICALL
 600 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
 601 
 602 /*
 603  * Retrieve the assertion directives from the VM.
 604  */
 605 JNIEXPORT jobject JNICALL
 606 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
 607 
 608 /*
 609  * java.util.concurrent.atomic.AtomicLong
 610  */
 611 JNIEXPORT jboolean JNICALL
 612 JVM_SupportsCX8(void);
 613 
 614 /*
 615  * com.sun.dtrace.jsdt support
 616  */
 617 
 618 #define JVM_TRACING_DTRACE_VERSION 1
 619 
 620 /*
 621  * Structure to pass one probe description to JVM
 622  */
 623 typedef struct {
 624     jmethodID method;
 625     jstring   function;
 626     jstring   name;
 627     void*            reserved[4];     // for future use
 628 } JVM_DTraceProbe;
 629 
 630 /**
 631  * Encapsulates the stability ratings for a DTrace provider field
 632  */
 633 typedef struct {
 634     jint nameStability;
 635     jint dataStability;
 636     jint dependencyClass;
 637 } JVM_DTraceInterfaceAttributes;
 638 
 639 /*
 640  * Structure to pass one provider description to JVM
 641  */
 642 typedef struct {
 643     jstring                       name;
 644     JVM_DTraceProbe*              probes;
 645     jint                          probe_count;
 646     JVM_DTraceInterfaceAttributes providerAttributes;
 647     JVM_DTraceInterfaceAttributes moduleAttributes;
 648     JVM_DTraceInterfaceAttributes functionAttributes;
 649     JVM_DTraceInterfaceAttributes nameAttributes;
 650     JVM_DTraceInterfaceAttributes argsAttributes;
 651     void*                         reserved[4]; // for future use
 652 } JVM_DTraceProvider;
 653 
 654 /*
 655  * Get the version number the JVM was built with
 656  */
 657 JNIEXPORT jint JNICALL
 658 JVM_DTraceGetVersion(JNIEnv* env);
 659 
 660 /*
 661  * Register new probe with given signature, return global handle
 662  *
 663  * The version passed in is the version that the library code was
 664  * built with.
 665  */
 666 JNIEXPORT jlong JNICALL
 667 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
 668   jint providers_count, JVM_DTraceProvider* providers);
 669 
 670 /*
 671  * Check JSDT probe
 672  */
 673 JNIEXPORT jboolean JNICALL
 674 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
 675 
 676 /*
 677  * Destroy custom DOF
 678  */
 679 JNIEXPORT void JNICALL
 680 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
 681 
 682 /*
 683  * Check to see if DTrace is supported by OS
 684  */
 685 JNIEXPORT jboolean JNICALL
 686 JVM_DTraceIsSupported(JNIEnv* env);
 687 
 688 /*************************************************************************
 689  PART 2: Support for the Verifier and Class File Format Checker
 690  ************************************************************************/
 691 /*
 692  * Return the class name in UTF format. The result is valid
 693  * until JVM_ReleaseUTf is called.
 694  *
 695  * The caller must treat the string as a constant and not modify it
 696  * in any way.
 697  */
 698 JNIEXPORT const char * JNICALL
 699 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
 700 
 701 /*
 702  * Returns the constant pool types in the buffer provided by "types."
 703  */
 704 JNIEXPORT void JNICALL
 705 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
 706 
 707 /*
 708  * Returns the number of Constant Pool entries.
 709  */
 710 JNIEXPORT jint JNICALL
 711 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
 712 
 713 /*
 714  * Returns the number of *declared* fields or methods.
 715  */
 716 JNIEXPORT jint JNICALL
 717 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
 718 
 719 JNIEXPORT jint JNICALL
 720 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
 721 
 722 /*
 723  * Returns the CP indexes of exceptions raised by a given method.
 724  * Places the result in the given buffer.
 725  *
 726  * The method is identified by method_index.
 727  */
 728 JNIEXPORT void JNICALL
 729 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
 730                                 unsigned short *exceptions);
 731 /*
 732  * Returns the number of exceptions raised by a given method.
 733  * The method is identified by method_index.
 734  */
 735 JNIEXPORT jint JNICALL
 736 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
 737 
 738 /*
 739  * Returns the byte code sequence of a given method.
 740  * Places the result in the given buffer.
 741  *
 742  * The method is identified by method_index.
 743  */
 744 JNIEXPORT void JNICALL
 745 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
 746                         unsigned char *code);
 747 
 748 /*
 749  * Returns the length of the byte code sequence of a given method.
 750  * The method is identified by method_index.
 751  */
 752 JNIEXPORT jint JNICALL
 753 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
 754 
 755 /*
 756  * A structure used to a capture exception table entry in a Java method.
 757  */
 758 typedef struct {
 759     jint start_pc;
 760     jint end_pc;
 761     jint handler_pc;
 762     jint catchType;
 763 } JVM_ExceptionTableEntryType;
 764 
 765 /*
 766  * Returns the exception table entry at entry_index of a given method.
 767  * Places the result in the given buffer.
 768  *
 769  * The method is identified by method_index.
 770  */
 771 JNIEXPORT void JNICALL
 772 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
 773                                    jint entry_index,
 774                                    JVM_ExceptionTableEntryType *entry);
 775 
 776 /*
 777  * Returns the length of the exception table of a given method.
 778  * The method is identified by method_index.
 779  */
 780 JNIEXPORT jint JNICALL
 781 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
 782 
 783 /*
 784  * Returns the modifiers of a given field.
 785  * The field is identified by field_index.
 786  */
 787 JNIEXPORT jint JNICALL
 788 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
 789 
 790 /*
 791  * Returns the modifiers of a given method.
 792  * The method is identified by method_index.
 793  */
 794 JNIEXPORT jint JNICALL
 795 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
 796 
 797 /*
 798  * Returns the number of local variables of a given method.
 799  * The method is identified by method_index.
 800  */
 801 JNIEXPORT jint JNICALL
 802 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
 803 
 804 /*
 805  * Returns the number of arguments (including this pointer) of a given method.
 806  * The method is identified by method_index.
 807  */
 808 JNIEXPORT jint JNICALL
 809 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
 810 
 811 /*
 812  * Returns the maximum amount of stack (in words) used by a given method.
 813  * The method is identified by method_index.
 814  */
 815 JNIEXPORT jint JNICALL
 816 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
 817 
 818 /*
 819  * Is a given method a constructor.
 820  * The method is identified by method_index.
 821  */
 822 JNIEXPORT jboolean JNICALL
 823 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
 824 
 825 /*
 826  * Is the given method generated by the VM.
 827  * The method is identified by method_index.
 828  */
 829 JNIEXPORT jboolean JNICALL
 830 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
 831 
 832 /*
 833  * Returns the name of a given method in UTF format.
 834  * The result remains valid until JVM_ReleaseUTF is called.
 835  *
 836  * The caller must treat the string as a constant and not modify it
 837  * in any way.
 838  */
 839 JNIEXPORT const char * JNICALL
 840 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
 841 
 842 /*
 843  * Returns the signature of a given method in UTF format.
 844  * The result remains valid until JVM_ReleaseUTF is called.
 845  *
 846  * The caller must treat the string as a constant and not modify it
 847  * in any way.
 848  */
 849 JNIEXPORT const char * JNICALL
 850 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
 851 
 852 /*
 853  * Returns the name of the field referred to at a given constant pool
 854  * index.
 855  *
 856  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 857  * is called.
 858  *
 859  * The caller must treat the string as a constant and not modify it
 860  * in any way.
 861  */
 862 JNIEXPORT const char * JNICALL
 863 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
 864 
 865 /*
 866  * Returns the name of the method referred to at a given constant pool
 867  * index.
 868  *
 869  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 870  * is called.
 871  *
 872  * The caller must treat the string as a constant and not modify it
 873  * in any way.
 874  */
 875 JNIEXPORT const char * JNICALL
 876 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
 877 
 878 /*
 879  * Returns the signature of the method referred to at a given constant pool
 880  * index.
 881  *
 882  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 883  * is called.
 884  *
 885  * The caller must treat the string as a constant and not modify it
 886  * in any way.
 887  */
 888 JNIEXPORT const char * JNICALL
 889 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
 890 
 891 /*
 892  * Returns the signature of the field referred to at a given constant pool
 893  * index.
 894  *
 895  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 896  * is called.
 897  *
 898  * The caller must treat the string as a constant and not modify it
 899  * in any way.
 900  */
 901 JNIEXPORT const char * JNICALL
 902 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
 903 
 904 /*
 905  * Returns the class name referred to at a given constant pool index.
 906  *
 907  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 908  * is called.
 909  *
 910  * The caller must treat the string as a constant and not modify it
 911  * in any way.
 912  */
 913 JNIEXPORT const char * JNICALL
 914 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
 915 
 916 /*
 917  * Returns the class name referred to at a given constant pool index.
 918  *
 919  * The constant pool entry must refer to a CONSTANT_Fieldref.
 920  *
 921  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 922  * is called.
 923  *
 924  * The caller must treat the string as a constant and not modify it
 925  * in any way.
 926  */
 927 JNIEXPORT const char * JNICALL
 928 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
 929 
 930 /*
 931  * Returns the class name referred to at a given constant pool index.
 932  *
 933  * The constant pool entry must refer to CONSTANT_Methodref or
 934  * CONSTANT_InterfaceMethodref.
 935  *
 936  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 937  * is called.
 938  *
 939  * The caller must treat the string as a constant and not modify it
 940  * in any way.
 941  */
 942 JNIEXPORT const char * JNICALL
 943 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
 944 
 945 /*
 946  * Returns the modifiers of a field in calledClass. The field is
 947  * referred to in class cb at constant pool entry index.
 948  *
 949  * The caller must treat the string as a constant and not modify it
 950  * in any way.
 951  *
 952  * Returns -1 if the field does not exist in calledClass.
 953  */
 954 JNIEXPORT jint JNICALL
 955 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
 956 
 957 /*
 958  * Returns the modifiers of a method in calledClass. The method is
 959  * referred to in class cb at constant pool entry index.
 960  *
 961  * Returns -1 if the method does not exist in calledClass.
 962  */
 963 JNIEXPORT jint JNICALL
 964 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
 965 
 966 /*
 967  * Releases the UTF string obtained from the VM.
 968  */
 969 JNIEXPORT void JNICALL
 970 JVM_ReleaseUTF(const char *utf);
 971 
 972 /*
 973  * Compare if two classes are in the same package.
 974  */
 975 JNIEXPORT jboolean JNICALL
 976 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
 977 
 978 /* Get classfile constants */
 979 #include "classfile_constants.h"
 980 
 981 /*
 982  * A function defined by the byte-code verifier and called by the VM.
 983  * This is not a function implemented in the VM.
 984  *
 985  * Returns JNI_FALSE if verification fails. A detailed error message
 986  * will be places in msg_buf, whose length is specified by buf_len.
 987  */
 988 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
 989                                   jclass cb,
 990                                   char * msg_buf,
 991                                   jint buf_len);
 992 
 993 
 994 /*
 995  * Support for a VM-independent class format checker.
 996  */
 997 typedef struct {
 998     unsigned long code;    /* byte code */
 999     unsigned long excs;    /* exceptions */
1000     unsigned long etab;    /* catch table */
1001     unsigned long lnum;    /* line number */
1002     unsigned long lvar;    /* local vars */
1003 } method_size_info;
1004 
1005 typedef struct {
1006     unsigned int constants;    /* constant pool */
1007     unsigned int fields;
1008     unsigned int methods;
1009     unsigned int interfaces;
1010     unsigned int fields2;      /* number of static 2-word fields */
1011     unsigned int innerclasses; /* # of records in InnerClasses attr */
1012 
1013     method_size_info clinit;   /* memory used in clinit */
1014     method_size_info main;     /* used everywhere else */
1015 } class_size_info;
1016 
1017 /*
1018  * Functions defined in libjava.so to perform string conversions.
1019  *
1020  */
1021 
1022 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1023 
1024 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1025 
1026 /* This is the function defined in libjava.so that performs class
1027  * format checks. This functions fills in size information about
1028  * the class file and returns:
1029  *
1030  *   0: good
1031  *  -1: out of memory
1032  *  -2: bad format
1033  *  -3: unsupported version
1034  *  -4: bad class name
1035  */
1036 
1037 typedef jint (*check_format_fn_t)(char *class_name,
1038                                   unsigned char *data,
1039                                   unsigned int data_size,
1040                                   class_size_info *class_size,
1041                                   char *message_buffer,
1042                                   jint buffer_length,
1043                                   jboolean measure_only,
1044                                   jboolean check_relaxed);
1045 
1046 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1047                                         JVM_ACC_FINAL | \
1048                                         JVM_ACC_SUPER | \
1049                                         JVM_ACC_INTERFACE | \
1050                                         JVM_ACC_ABSTRACT | \
1051                                         JVM_ACC_ANNOTATION | \
1052                                         JVM_ACC_ENUM | \
1053                                         JVM_ACC_SYNTHETIC)
1054 
1055 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1056                                         JVM_ACC_PRIVATE | \
1057                                         JVM_ACC_PROTECTED | \
1058                                         JVM_ACC_STATIC | \
1059                                         JVM_ACC_FINAL | \
1060                                         JVM_ACC_VOLATILE | \
1061                                         JVM_ACC_TRANSIENT | \
1062                                         JVM_ACC_ENUM | \
1063                                         JVM_ACC_SYNTHETIC)
1064 
1065 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1066                                          JVM_ACC_PRIVATE | \
1067                                          JVM_ACC_PROTECTED | \
1068                                          JVM_ACC_STATIC | \
1069                                          JVM_ACC_FINAL | \
1070                                          JVM_ACC_SYNCHRONIZED | \
1071                                          JVM_ACC_BRIDGE | \
1072                                          JVM_ACC_VARARGS | \
1073                                          JVM_ACC_NATIVE | \
1074                                          JVM_ACC_ABSTRACT | \
1075                                          JVM_ACC_STRICT | \
1076                                          JVM_ACC_SYNTHETIC)
1077 
1078 /*
1079  * This is the function defined in libjava.so to perform path
1080  * canonicalization. VM call this function before opening jar files
1081  * to load system classes.
1082  *
1083  */
1084 
1085 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1086 
1087 /*************************************************************************
1088  PART 3: I/O and Network Support
1089  ************************************************************************/
1090 
1091 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1092  * when there is any kind of error. The caller can then use the
1093  * platform specific support (e.g., errno) to get the detailed
1094  * error info.  The JVM_GetLastErrorString procedure may also be used
1095  * to obtain a descriptive error string.
1096  */
1097 #define JVM_IO_ERR  (-1)
1098 
1099 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1100  * operation has been disrupted by Thread.interrupt. There are a
1101  * number of technical difficulties related to interruptible IO that
1102  * need to be solved. For example, most existing programs do not handle
1103  * InterruptedIOExceptions specially, they simply treat those as any
1104  * IOExceptions, which typically indicate fatal errors.
1105  *
1106  * There are also two modes of operation for interruptible IO. In the
1107  * resumption mode, an interrupted IO operation is guaranteed not to
1108  * have any side-effects, and can be restarted. In the termination mode,
1109  * an interrupted IO operation corrupts the underlying IO stream, so
1110  * that the only reasonable operation on an interrupted stream is to
1111  * close that stream. The resumption mode seems to be impossible to
1112  * implement on Win32 and Solaris. Implementing the termination mode is
1113  * easier, but it's not clear that's the right semantics.
1114  *
1115  * Interruptible IO is not supported on Win32.It can be enabled/disabled
1116  * using a compile-time flag on Solaris. Third-party JVM ports do not
1117  * need to implement interruptible IO.
1118  */
1119 #define JVM_IO_INTR (-2)
1120 
1121 /* Write a string into the given buffer, in the platform's local encoding,
1122  * that describes the most recent system-level error to occur in this thread.
1123  * Return the length of the string or zero if no error occurred.
1124  */
1125 JNIEXPORT jint JNICALL
1126 JVM_GetLastErrorString(char *buf, int len);
1127 
1128 /*
1129  * Convert a pathname into native format.  This function does syntactic
1130  * cleanup, such as removing redundant separator characters.  It modifies
1131  * the given pathname string in place.
1132  */
1133 JNIEXPORT char * JNICALL
1134 JVM_NativePath(char *);
1135 
1136 /*
1137  * JVM I/O error codes
1138  */
1139 #define JVM_EEXIST       -100
1140 
1141 /*
1142  * Open a file descriptor. This function returns a negative error code
1143  * on error, and a non-negative integer that is the file descriptor on
1144  * success.
1145  */
1146 JNIEXPORT jint JNICALL
1147 JVM_Open(const char *fname, jint flags, jint mode);
1148 
1149 /*
1150  * Close a file descriptor. This function returns -1 on error, and 0
1151  * on success.
1152  *
1153  * fd        the file descriptor to close.
1154  */
1155 JNIEXPORT jint JNICALL
1156 JVM_Close(jint fd);
1157 
1158 /*
1159  * Read data from a file decriptor into a char array.
1160  *
1161  * fd        the file descriptor to read from.
1162  * buf       the buffer where to put the read data.
1163  * nbytes    the number of bytes to read.
1164  *
1165  * This function returns -1 on error, and 0 on success.
1166  */
1167 JNIEXPORT jint JNICALL
1168 JVM_Read(jint fd, char *buf, jint nbytes);
1169 
1170 /*
1171  * Write data from a char array to a file decriptor.
1172  *
1173  * fd        the file descriptor to read from.
1174  * buf       the buffer from which to fetch the data.
1175  * nbytes    the number of bytes to write.
1176  *
1177  * This function returns -1 on error, and 0 on success.
1178  */
1179 JNIEXPORT jint JNICALL
1180 JVM_Write(jint fd, char *buf, jint nbytes);
1181 
1182 /*
1183  * Returns the number of bytes available for reading from a given file
1184  * descriptor
1185  */
1186 JNIEXPORT jint JNICALL
1187 JVM_Available(jint fd, jlong *pbytes);
1188 
1189 /*
1190  * Move the file descriptor pointer from whence by offset.
1191  *
1192  * fd        the file descriptor to move.
1193  * offset    the number of bytes to move it by.
1194  * whence    the start from where to move it.
1195  *
1196  * This function returns the resulting pointer location.
1197  */
1198 JNIEXPORT jlong JNICALL
1199 JVM_Lseek(jint fd, jlong offset, jint whence);
1200 
1201 /*
1202  * Set the length of the file associated with the given descriptor to the given
1203  * length.  If the new length is longer than the current length then the file
1204  * is extended; the contents of the extended portion are not defined.  The
1205  * value of the file pointer is undefined after this procedure returns.
1206  */
1207 JNIEXPORT jint JNICALL
1208 JVM_SetLength(jint fd, jlong length);
1209 
1210 /*
1211  * Synchronize the file descriptor's in memory state with that of the
1212  * physical device.  Return of -1 is an error, 0 is OK.
1213  */
1214 JNIEXPORT jint JNICALL
1215 JVM_Sync(jint fd);
1216 
1217 /*
1218  * Networking library support
1219  */
1220 
1221 JNIEXPORT jint JNICALL
1222 JVM_InitializeSocketLibrary(void);
1223 
1224 struct sockaddr;
1225 
1226 JNIEXPORT jint JNICALL
1227 JVM_Socket(jint domain, jint type, jint protocol);
1228 
1229 JNIEXPORT jint JNICALL
1230 JVM_SocketClose(jint fd);
1231 
1232 JNIEXPORT jint JNICALL
1233 JVM_SocketShutdown(jint fd, jint howto);
1234 
1235 JNIEXPORT jint JNICALL
1236 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1237 
1238 JNIEXPORT jint JNICALL
1239 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1240 
1241 JNIEXPORT jint JNICALL
1242 JVM_Timeout(int fd, long timeout);
1243 
1244 JNIEXPORT jint JNICALL
1245 JVM_Listen(jint fd, jint count);
1246 
1247 JNIEXPORT jint JNICALL
1248 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1249 
1250 JNIEXPORT jint JNICALL
1251 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1252 
1253 JNIEXPORT jint JNICALL
1254 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1255 
1256 JNIEXPORT jint JNICALL
1257 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1258                   int flags, struct sockaddr *from, int *fromlen);
1259 
1260 JNIEXPORT jint JNICALL
1261 JVM_SendTo(jint fd, char *buf, int len,
1262                 int flags, struct sockaddr *to, int tolen);
1263 
1264 JNIEXPORT jint JNICALL
1265 JVM_SocketAvailable(jint fd, jint *result);
1266 
1267 
1268 JNIEXPORT jint JNICALL
1269 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1270 
1271 JNIEXPORT jint JNICALL
1272 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1273 
1274 JNIEXPORT jint JNICALL
1275 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1276 
1277 JNIEXPORT int JNICALL
1278 JVM_GetHostName(char* name, int namelen);
1279 
1280 /*
1281  * The standard printing functions supported by the Java VM. (Should they
1282  * be renamed to JVM_* in the future?
1283  */
1284 
1285 /*
1286  * BE CAREFUL! The following functions do not implement the
1287  * full feature set of standard C printf formats.
1288  */
1289 int
1290 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1291 
1292 int
1293 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1294 
1295 int
1296 jio_fprintf(FILE *, const char *fmt, ...);
1297 
1298 int
1299 jio_vfprintf(FILE *, const char *fmt, va_list args);
1300 
1301 
1302 JNIEXPORT void * JNICALL
1303 JVM_RawMonitorCreate(void);
1304 
1305 JNIEXPORT void JNICALL
1306 JVM_RawMonitorDestroy(void *mon);
1307 
1308 JNIEXPORT jint JNICALL
1309 JVM_RawMonitorEnter(void *mon);
1310 
1311 JNIEXPORT void JNICALL
1312 JVM_RawMonitorExit(void *mon);
1313 
1314 /*
1315  * java.lang.management support
1316  */
1317 JNIEXPORT void* JNICALL
1318 JVM_GetManagement(jint version);
1319 
1320 /*
1321  * com.sun.tools.attach.VirtualMachine support
1322  *
1323  * Initialize the agent properties with the properties maintained in the VM.
1324  */
1325 JNIEXPORT jobject JNICALL
1326 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1327 
1328 JNIEXPORT jstring JNICALL
1329 JVM_GetTemporaryDirectory(JNIEnv *env);
1330 
1331 /* Generics reflection support.
1332  *
1333  * Returns information about the given class's EnclosingMethod
1334  * attribute, if present, or null if the class had no enclosing
1335  * method.
1336  *
1337  * If non-null, the returned array contains three elements. Element 0
1338  * is the java.lang.Class of which the enclosing method is a member,
1339  * and elements 1 and 2 are the java.lang.Strings for the enclosing
1340  * method's name and descriptor, respectively.
1341  */
1342 JNIEXPORT jobjectArray JNICALL
1343 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1344 
1345 /*
1346  * Java thread state support
1347  */
1348 enum {
1349     JAVA_THREAD_STATE_NEW           = 0,
1350     JAVA_THREAD_STATE_RUNNABLE      = 1,
1351     JAVA_THREAD_STATE_BLOCKED       = 2,
1352     JAVA_THREAD_STATE_WAITING       = 3,
1353     JAVA_THREAD_STATE_TIMED_WAITING = 4,
1354     JAVA_THREAD_STATE_TERMINATED    = 5,
1355     JAVA_THREAD_STATE_COUNT         = 6
1356 };
1357 
1358 /*
1359  * Returns an array of the threadStatus values representing the
1360  * given Java thread state.  Returns NULL if the VM version is
1361  * incompatible with the JDK or doesn't support the given
1362  * Java thread state.
1363  */
1364 JNIEXPORT jintArray JNICALL
1365 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1366 
1367 /*
1368  * Returns an array of the substate names representing the
1369  * given Java thread state.  Returns NULL if the VM version is
1370  * incompatible with the JDK or the VM doesn't support
1371  * the given Java thread state.
1372  * values must be the jintArray returned from JVM_GetThreadStateValues
1373  * and javaThreadState.
1374  */
1375 JNIEXPORT jobjectArray JNICALL
1376 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1377 
1378 /* =========================================================================
1379  * The following defines a private JVM interface that the JDK can query
1380  * for the JVM version and capabilities.  sun.misc.Version defines
1381  * the methods for getting the VM version and its capabilities.
1382  *
1383  * When a new bit is added, the following should be updated to provide
1384  * access to the new capability:
1385  *    HS:   JVM_GetVersionInfo and Abstract_VM_Version class
1386  *    SDK:  Version class
1387  *
1388  * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1389  * JVM to query for the JDK version and capabilities.
1390  *
1391  * When a new bit is added, the following should be updated to provide
1392  * access to the new capability:
1393  *    HS:   JDK_Version class
1394  *    SDK:  JDK_GetVersionInfo0
1395  *
1396  * ==========================================================================
1397  */
1398 typedef struct {
1399     /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */
1400     unsigned int jvm_version;   /* Consists of major, minor, micro (n.n.n) */
1401                                 /* and build number (xx) */
1402     unsigned int update_version : 8;         /* Update release version (uu) */
1403     unsigned int special_update_version : 8; /* Special update release version (c)*/
1404     unsigned int reserved1 : 16;
1405     unsigned int reserved2;
1406 
1407     /* The following bits represents JVM supports that JDK has dependency on.
1408      * JDK can use these bits to determine which JVM version
1409      * and support it has to maintain runtime compatibility.
1410      *
1411      * When a new bit is added in a minor or update release, make sure
1412      * the new bit is also added in the main/baseline.
1413      */
1414     unsigned int is_attach_supported : 1;
1415     unsigned int : 31;
1416     unsigned int : 32;
1417     unsigned int : 32;
1418 } jvm_version_info;
1419 
1420 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1421 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1422 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1423 
1424 /* Build number is available only for RE builds.
1425  * It will be zero for internal builds.
1426  */
1427 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1428 
1429 JNIEXPORT void JNICALL
1430 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1431 
1432 typedef struct {
1433     // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1434     unsigned int jdk_version;   /* Consists of major, minor, micro (n.n.n) */
1435                                 /* and build number (xx) */
1436     unsigned int update_version : 8;         /* Update release version (uu) */
1437     unsigned int special_update_version : 8; /* Special update release version (c)*/
1438     unsigned int reserved1 : 16;
1439     unsigned int reserved2;
1440 
1441     /* The following bits represents new JDK supports that VM has dependency on.
1442      * VM implementation can use these bits to determine which JDK version
1443      * and support it has to maintain runtime compatibility.
1444      *
1445      * When a new bit is added in a minor or update release, make sure
1446      * the new bit is also added in the main/baseline.
1447      */
1448     unsigned int thread_park_blocker : 1;
1449     unsigned int post_vm_init_hook_enabled : 1;
1450     unsigned int pending_list_uses_discovered_field : 1;
1451     unsigned int : 29;
1452     unsigned int : 32;
1453     unsigned int : 32;
1454 } jdk_version_info;
1455 
1456 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1457 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1458 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1459 
1460 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1461  * It will be zero for internal builds.
1462  */
1463 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1464 
1465 /*
1466  * This is the function JDK_GetVersionInfo0 defined in libjava.so
1467  * that is dynamically looked up by JVM.
1468  */
1469 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1470 
1471 /*
1472  * This structure is used by the launcher to get the default thread
1473  * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1474  * version of 1.1.  As it is not supported otherwise, it has been removed
1475  * from jni.h
1476  */
1477 typedef struct JDK1_1InitArgs {
1478     jint version;
1479 
1480     char **properties;
1481     jint checkSource;
1482     jint nativeStackSize;
1483     jint javaStackSize;
1484     jint minHeapSize;
1485     jint maxHeapSize;
1486     jint verifyMode;
1487     char *classpath;
1488 
1489     jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1490     void (JNICALL *exit)(jint code);
1491     void (JNICALL *abort)(void);
1492 
1493     jint enableClassGC;
1494     jint enableVerboseGC;
1495     jint disableAsyncGC;
1496     jint verbose;
1497     jboolean debugging;
1498     jint debugPort;
1499 } JDK1_1InitArgs;
1500 
1501 
1502 #ifdef __cplusplus
1503 } /* extern "C" */
1504 
1505 #endif /* __cplusplus */
1506 
1507 #endif /* !_JAVASOFT_JVM_H_ */