1 /*
2 * Copyright (c) 1994, 2023, 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 #include "jni.h"
27 #include "jvm.h"
28
29 #include "java_lang_Thread.h"
30
31 #define THD "Ljava/lang/Thread;"
32 #define OBJ "Ljava/lang/Object;"
33 #define STE "Ljava/lang/StackTraceElement;"
34 #define STR "Ljava/lang/String;"
35
36 #define ARRAY_LENGTH(a) (sizeof(a)/sizeof(a[0]))
37
38 static JNINativeMethod methods[] = {
39 {"start0", "()V", (void *)&JVM_StartThread},
40 {"setPriority0", "(I)V", (void *)&JVM_SetThreadPriority},
41 {"yield0", "()V", (void *)&JVM_Yield},
42 {"sleepNanos0", "(J)V", (void *)&JVM_SleepNanos},
43 {"currentCarrierThread", "()" THD, (void *)&JVM_CurrentCarrierThread},
44 {"currentThread", "()" THD, (void *)&JVM_CurrentThread},
45 {"setCurrentThread", "(" THD ")V", (void *)&JVM_SetCurrentThread},
46 {"interrupt0", "()V", (void *)&JVM_Interrupt},
47 {"holdsLock", "(" OBJ ")Z", (void *)&JVM_HoldsLock},
48 {"getThreads", "()[" THD, (void *)&JVM_GetAllThreads},
49 {"dumpThreads", "([" THD ")[[" STE, (void *)&JVM_DumpThreads},
50 {"getStackTrace0", "()" OBJ, (void *)&JVM_GetStackTrace},
51 {"setNativeName", "(" STR ")V", (void *)&JVM_SetNativeThreadName},
52 {"scopedValueCache", "()[" OBJ, (void *)&JVM_ScopedValueCache},
53 {"setScopedValueCache", "([" OBJ ")V",(void *)&JVM_SetScopedValueCache},
54 {"getNextThreadIdOffset", "()J", (void *)&JVM_GetNextThreadIdOffset},
55 {"findScopedValueBindings", "()" OBJ, (void *)&JVM_FindScopedValueBindings},
56 {"ensureMaterializedForStackWalk",
57 "(" OBJ ")V", (void*)&JVM_EnsureMaterializedForStackWalk_func},
58 };
59
60 #undef THD
61 #undef OBJ
62 #undef STE
63 #undef STR
64
65 JNIEXPORT void JNICALL
66 Java_java_lang_Thread_registerNatives(JNIEnv *env, jclass cls)
67 {
68 (*env)->RegisterNatives(env, cls, methods, ARRAY_LENGTH(methods));
69 }
70
71 JNIEXPORT void JNICALL
72 Java_java_lang_Thread_clearInterruptEvent(JNIEnv *env, jclass cls)
73 {
74 #if defined(_WIN32)
75 // Need to reset the interrupt event used by Process.waitFor
76 ResetEvent((HANDLE) JVM_GetThreadInterruptEvent());
77 #endif
78 }