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authorBrian Carlstrom <bdc@google.com>2013-07-12 13:46:57 -0700
committerBrian Carlstrom <bdc@google.com>2013-07-12 17:49:01 -0700
commit7940e44f4517de5e2634a7e07d58d0fb26160513 (patch)
treeac90242d96229a6942f6e24ab137bc1f8f2e0025 /runtime/native/java_lang_Thread.cc
parent5cd9e3b122f276f610980cbaf0d2ad6ed4cd9088 (diff)
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Create separate Android.mk for main build targets
The runtime, compiler, dex2oat, and oatdump now are in seperate trees to prevent dependency creep. They can now be individually built without rebuilding the rest of the art projects. dalvikvm and jdwpspy were already this way. Builds in the art directory should behave as before, building everything including tests. Change-Id: Ic6b1151e5ed0f823c3dd301afd2b13eb2d8feb81
Diffstat (limited to 'runtime/native/java_lang_Thread.cc')
-rw-r--r--runtime/native/java_lang_Thread.cc186
1 files changed, 186 insertions, 0 deletions
diff --git a/runtime/native/java_lang_Thread.cc b/runtime/native/java_lang_Thread.cc
new file mode 100644
index 0000000000..8ef190aa3f
--- /dev/null
+++ b/runtime/native/java_lang_Thread.cc
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "common_throws.h"
+#include "debugger.h"
+#include "jni_internal.h"
+#include "monitor.h"
+#include "mirror/object.h"
+#include "scoped_thread_state_change.h"
+#include "ScopedUtfChars.h"
+#include "thread.h"
+#include "thread_list.h"
+
+namespace art {
+
+static jobject Thread_currentThread(JNIEnv* env, jclass) {
+ ScopedObjectAccess soa(env);
+ return soa.AddLocalReference<jobject>(soa.Self()->GetPeer());
+}
+
+static jboolean Thread_interrupted(JNIEnv* env, jclass) {
+ return static_cast<JNIEnvExt*>(env)->self->Interrupted() ? JNI_TRUE : JNI_FALSE;
+}
+
+static jboolean Thread_isInterrupted(JNIEnv* env, jobject java_thread) {
+ ScopedObjectAccess soa(env);
+ MutexLock mu(soa.Self(), *Locks::thread_list_lock_);
+ Thread* thread = Thread::FromManagedThread(soa, java_thread);
+ return (thread != NULL) ? thread->IsInterrupted() : JNI_FALSE;
+}
+
+static void Thread_nativeCreate(JNIEnv* env, jclass, jobject java_thread, jlong stack_size,
+ jboolean daemon) {
+ Thread::CreateNativeThread(env, java_thread, stack_size, daemon == JNI_TRUE);
+}
+
+static jint Thread_nativeGetStatus(JNIEnv* env, jobject java_thread, jboolean has_been_started) {
+ // Ordinals from Java's Thread.State.
+ const jint kJavaNew = 0;
+ const jint kJavaRunnable = 1;
+ const jint kJavaBlocked = 2;
+ const jint kJavaWaiting = 3;
+ const jint kJavaTimedWaiting = 4;
+ const jint kJavaTerminated = 5;
+
+ ScopedObjectAccess soa(env);
+ ThreadState internal_thread_state = (has_been_started ? kTerminated : kStarting);
+ MutexLock mu(soa.Self(), *Locks::thread_list_lock_);
+ Thread* thread = Thread::FromManagedThread(soa, java_thread);
+ if (thread != NULL) {
+ internal_thread_state = thread->GetState();
+ }
+ switch (internal_thread_state) {
+ case kTerminated: return kJavaTerminated;
+ case kRunnable: return kJavaRunnable;
+ case kTimedWaiting: return kJavaTimedWaiting;
+ case kSleeping: return kJavaTimedWaiting;
+ case kBlocked: return kJavaBlocked;
+ case kWaiting: return kJavaWaiting;
+ case kStarting: return kJavaNew;
+ case kNative: return kJavaRunnable;
+ case kWaitingForGcToComplete: return kJavaWaiting;
+ case kWaitingPerformingGc: return kJavaWaiting;
+ case kWaitingForCheckPointsToRun: return kJavaWaiting;
+ case kWaitingForDebuggerSend: return kJavaWaiting;
+ case kWaitingForDebuggerToAttach: return kJavaWaiting;
+ case kWaitingInMainDebuggerLoop: return kJavaWaiting;
+ case kWaitingForDebuggerSuspension: return kJavaWaiting;
+ case kWaitingForJniOnLoad: return kJavaWaiting;
+ case kWaitingForSignalCatcherOutput: return kJavaWaiting;
+ case kWaitingInMainSignalCatcherLoop: return kJavaWaiting;
+ case kSuspended: return kJavaRunnable;
+ // Don't add a 'default' here so the compiler can spot incompatible enum changes.
+ }
+ return -1; // Unreachable.
+}
+
+static jboolean Thread_nativeHoldsLock(JNIEnv* env, jobject java_thread, jobject java_object) {
+ ScopedObjectAccess soa(env);
+ mirror::Object* object = soa.Decode<mirror::Object*>(java_object);
+ if (object == NULL) {
+ ThrowNullPointerException(NULL, "object == null");
+ return JNI_FALSE;
+ }
+ MutexLock mu(soa.Self(), *Locks::thread_list_lock_);
+ Thread* thread = Thread::FromManagedThread(soa, java_thread);
+ return thread->HoldsLock(object);
+}
+
+static void Thread_nativeInterrupt(JNIEnv* env, jobject java_thread) {
+ ScopedObjectAccess soa(env);
+ MutexLock mu(soa.Self(), *Locks::thread_list_lock_);
+ Thread* thread = Thread::FromManagedThread(soa, java_thread);
+ if (thread != NULL) {
+ thread->Interrupt();
+ }
+}
+
+static void Thread_nativeSetName(JNIEnv* env, jobject peer, jstring java_name) {
+ ScopedUtfChars name(env, java_name);
+ {
+ ScopedObjectAccess soa(env);
+ if (soa.Decode<mirror::Object*>(peer) == soa.Self()->GetPeer()) {
+ soa.Self()->SetThreadName(name.c_str());
+ return;
+ }
+ }
+ // Suspend thread to avoid it from killing itself while we set its name. We don't just hold the
+ // thread list lock to avoid this, as setting the thread name causes mutator to lock/unlock
+ // in the DDMS send code.
+ bool timed_out;
+ Thread* thread = Thread::SuspendForDebugger(peer, true, &timed_out);
+ if (thread != NULL) {
+ {
+ ScopedObjectAccess soa(env);
+ thread->SetThreadName(name.c_str());
+ }
+ Runtime::Current()->GetThreadList()->Resume(thread, true);
+ } else if (timed_out) {
+ LOG(ERROR) << "Trying to set thread name to '" << name.c_str() << "' failed as the thread "
+ "failed to suspend within a generous timeout.";
+ }
+}
+
+/*
+ * Alter the priority of the specified thread. "new_priority" will range
+ * from Thread.MIN_PRIORITY to Thread.MAX_PRIORITY (1-10), with "normal"
+ * threads at Thread.NORM_PRIORITY (5).
+ */
+static void Thread_nativeSetPriority(JNIEnv* env, jobject java_thread, jint new_priority) {
+ ScopedObjectAccess soa(env);
+ MutexLock mu(soa.Self(), *Locks::thread_list_lock_);
+ Thread* thread = Thread::FromManagedThread(soa, java_thread);
+ if (thread != NULL) {
+ thread->SetNativePriority(new_priority);
+ }
+}
+
+static void Thread_sleep(JNIEnv* env, jclass, jobject java_lock, jlong ms, jint ns) {
+ ScopedObjectAccess soa(env);
+ mirror::Object* lock = soa.Decode<mirror::Object*>(java_lock);
+ Monitor::Wait(Thread::Current(), lock, ms, ns, true, kSleeping);
+}
+
+/*
+ * Causes the thread to temporarily pause and allow other threads to execute.
+ *
+ * The exact behavior is poorly defined. Some discussion here:
+ * http://www.cs.umd.edu/~pugh/java/memoryModel/archive/0944.html
+ */
+static void Thread_yield(JNIEnv*, jobject) {
+ sched_yield();
+}
+
+static JNINativeMethod gMethods[] = {
+ NATIVE_METHOD(Thread, currentThread, "()Ljava/lang/Thread;"),
+ NATIVE_METHOD(Thread, interrupted, "()Z"),
+ NATIVE_METHOD(Thread, isInterrupted, "()Z"),
+ NATIVE_METHOD(Thread, nativeCreate, "(Ljava/lang/Thread;JZ)V"),
+ NATIVE_METHOD(Thread, nativeGetStatus, "(Z)I"),
+ NATIVE_METHOD(Thread, nativeHoldsLock, "(Ljava/lang/Object;)Z"),
+ NATIVE_METHOD(Thread, nativeInterrupt, "()V"),
+ NATIVE_METHOD(Thread, nativeSetName, "(Ljava/lang/String;)V"),
+ NATIVE_METHOD(Thread, nativeSetPriority, "(I)V"),
+ NATIVE_METHOD(Thread, sleep, "(Ljava/lang/Object;JI)V"),
+ NATIVE_METHOD(Thread, yield, "()V"),
+};
+
+void register_java_lang_Thread(JNIEnv* env) {
+ REGISTER_NATIVE_METHODS("java/lang/Thread");
+}
+
+} // namespace art