/* src/native/vm/sun_misc_Unsafe.cpp - sun/misc/Unsafe
- Copyright (C) 2006, 2007, 2008
+ Copyright (C) 2006, 2007, 2008, 2009, 2010
CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
#include "threads/atomic.hpp"
-#include "mm/memory.h"
+#include "mm/memory.hpp"
#include "native/jni.hpp"
#include "native/llni.h"
# include "native/include/sun_misc_Unsafe.h"
#endif
+#include "vm/array.hpp"
#include "vm/jit/builtin.hpp"
#include "vm/exceptions.hpp"
#include "vm/initialize.hpp"
}
+/*
+ * Class: sun/misc/Unsafe
+ * Method: getDouble
+ * Signature: (J)D
+ */
+JNIEXPORT jdouble JNICALL Java_sun_misc_Unsafe_getDouble__J(JNIEnv *env, jobject _this, jlong address)
+{
+ double *p;
+ double value;
+
+ p = (double*) (intptr_t) address;
+
+ value = *p;
+
+ return value;
+}
+
+
+/*
+ * Class: sun/misc/Unsafe
+ * Method: putDouble
+ * Signature: (JD)V
+ */
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putDouble__JD(JNIEnv *env, jobject _this, jlong address, jdouble value)
+{
+ double* p;
+
+ p = (double*) (intptr_t) address;
+
+ *p = value;
+}
+
+
/*
* Class: sun/misc/Unsafe
* Method: objectFieldOffset
}
-#if 0
/* OpenJDK 7 */
/*
* Method: setMemory
* Signature: (Ljava/lang/Object;JJB)V
*/
-JNIEXPORT void JNICALL Java_sun_misc_Unsafe_setMemory(JNIEnv *env, jobject _this, jobject o, jlong offset, jlong bytes, jbyte value)
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_setMemory_jdk7(JNIEnv *env, jobject _this, jobject o, jlong offset, jlong bytes, jbyte value)
{
size_t length;
void *p;
* Method: copyMemory
* Signature: (Ljava/lang/Object;JLjava/lang/Object;JJ)V
*/
-JNIEXPORT void JNICALL Java_sun_misc_Unsafe_copyMemory(JNIEnv *env, jobject _this, jobject srcBase, jlong srcOffset, jobject destBase, jlong destOffset, jlong bytes)
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_copyMemory_jdk7(JNIEnv *env, jobject _this, jobject srcBase, jlong srcOffset, jobject destBase, jlong destOffset, jlong bytes)
{
size_t length;
void *src;
os::memcpy(dest, src, length);
}
-#else
+
/*
* Class: sun/misc/Unsafe
* Method: setMemory
* Signature: (JJB)V
*/
-JNIEXPORT void JNICALL Java_sun_misc_Unsafe_setMemory(JNIEnv *env, jobject _this, jlong address, jlong bytes, jbyte value)
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_setMemory_jdk6(JNIEnv *env, jobject _this, jlong address, jlong bytes, jbyte value)
{
size_t length;
void *p;
* Method: copyMemory
* Signature: (JJJ)V
*/
-JNIEXPORT void JNICALL Java_sun_misc_Unsafe_copyMemory(JNIEnv *env, jobject _this, jlong srcAddress, jlong destAddress, jlong bytes)
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_copyMemory_jdk6(JNIEnv *env, jobject _this, jlong srcAddress, jlong destAddress, jlong bytes)
{
size_t length;
void *src;
os::memcpy(dest, src, length);
}
-#endif
/*
/* check the indexes passed */
- if ((off < 0) || (len < 0) || ((off + len) > LLNI_array_size(b))) {
+ ByteArray ba(b);
+
+ if ((off < 0) || (len < 0) || ((off + len) > ba.get_length())) {
exceptions_throw_arrayindexoutofboundsexception();
return NULL;
}
/* define the class */
- c = class_define(utfname, cl, len, (uint8_t *) &(LLNI_array_direct((java_handle_bytearray_t*) b, off)),
+ uint8_t* ptr = ((uint8_t*) ba.get_raw_data_ptr()) + off;
+ c = class_define(utfname, cl, len, ptr,
(java_handle_t *) protectionDomain);
if (c == NULL)
*/
JNIEXPORT jboolean JNICALL Java_sun_misc_Unsafe_compareAndSwapObject(JNIEnv *env, jobject _this, jobject o, jlong offset, jobject expected, jobject x)
{
- volatile void **p;
+ void **p;
void *result;
/* XXX Use LLNI */
- p = (volatile void **) (((uint8_t *) o) + offset);
+ p = (void **) (((uint8_t *) o) + offset);
- result = Atomic::compare_and_swap(p, expected, x);
+ result = Atomic::compare_and_swap(p, (void *) expected, (void *) x);
+#if defined(CAS_PROVIDES_FULL_BARRIER) && CAS_PROVIDES_FULL_BARRIER
+ Atomic::instruction_barrier();
+#else
+ Atomic::memory_barrier();
+#endif
if (result == expected)
return true;
p = (uint32_t *) (((uint8_t *) o) + offset);
- result = Atomic::compare_and_swap(p, expected, x);
+ result = Atomic::compare_and_swap(p, (uint32_t) expected, (uint32_t) x);
+#if defined(CAS_PROVIDES_FULL_BARRIER) && CAS_PROVIDES_FULL_BARRIER
+ Atomic::instruction_barrier();
+#else
+ Atomic::memory_barrier();
+#endif
if (result == (uint32_t) expected)
return true;
p = (uint64_t *) (((uint8_t *) o) + offset);
- result = Atomic::compare_and_swap(p, expected, x);
+ result = Atomic::compare_and_swap(p, (uint64_t) expected, (uint64_t) x);
+#if defined(CAS_PROVIDES_FULL_BARRIER) && CAS_PROVIDES_FULL_BARRIER
+ Atomic::instruction_barrier();
+#else
+ Atomic::memory_barrier();
+#endif
if (result == (uint64_t) expected)
return true;
}
+/*
+ * Class: sun/misc/Unsafe
+ * Method: getBooleanVolatile
+ * Signature: (Ljava/lang/Object;J)Z
+ */
+JNIEXPORT jboolean JNICALL Java_sun_misc_Unsafe_getBooleanVolatile(JNIEnv* env, jobject _this, jobject o, jlong offset)
+{
+ return FieldAccess::get_volatile<int32_t>(o, offset);
+}
+
+
+/*
+ * Class: sun/misc/Unsafe
+ * Method: putBooleanVolatile
+ * Signature: (Ljava/lang/Object;JZ)V
+ */
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putBooleanVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jboolean x)
+{
+ FieldAccess::set_volatile(o, offset, x);
+}
+
+
/*
* Class: sun/misc/Unsafe
* Method: getByteVolatile
}
+/*
+ * Class: sun/misc/Unsafe
+ * Method: putByteVolatile
+ * Signature: (Ljava/lang/Object;JB)V
+ */
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putByteVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jbyte x)
+{
+ FieldAccess::set_volatile(o, offset, x);
+}
+
+
+/*
+ * Class: sun/misc/Unsafe
+ * Method: getShortVolatile
+ * Signature: (Ljava/lang/Object;J)S
+ */
+JNIEXPORT jshort JNICALL Java_sun_misc_Unsafe_getShortVolatile(JNIEnv* env, jobject _this, jobject o, jlong offset)
+{
+ return FieldAccess::get_volatile<int32_t>(o, offset);
+}
+
+
+/*
+ * Class: sun/misc/Unsafe
+ * Method: putShortVolatile
+ * Signature: (Ljava/lang/Object;JS)V
+ */
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putShortVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jshort x)
+{
+ FieldAccess::set_volatile(o, offset, x);
+}
+
+
+/*
+ * Class: sun/misc/Unsafe
+ * Method: getCharVolatile
+ * Signature: (Ljava/lang/Object;J)C
+ */
+JNIEXPORT jchar JNICALL Java_sun_misc_Unsafe_getCharVolatile(JNIEnv* env, jobject _this, jobject o, jlong offset)
+{
+ return FieldAccess::get_volatile<int32_t>(o, offset);
+}
+
+
+/*
+ * Class: sun/misc/Unsafe
+ * Method: putCharVolatile
+ * Signature: (Ljava/lang/Object;JC)V
+ */
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putCharVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jchar x)
+{
+ FieldAccess::set_volatile(o, offset, x);
+}
+
+
/*
* Class: sun/misc/Unsafe
* Method: getIntVolatile
}
+/*
+ * Class: sun/misc/Unsafe
+ * Method: putFloatVolatile
+ * Signature: (Ljava/lang/Object;JF)V
+ */
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putFloatVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jfloat x)
+{
+ FieldAccess::set_volatile(o, offset, x);
+}
+
+
/*
* Class: sun/misc/Unsafe
* Method: getDoubleVolatile
}
+/*
+ * Class: sun/misc/Unsafe
+ * Method: putDoubleVolatile
+ * Signature: (Ljava/lang/Object;JD)V
+ */
+JNIEXPORT void JNICALL Java_sun_misc_Unsafe_putDoubleVolatile (JNIEnv *env, jobject _this, jobject o, jlong offset, jdouble x)
+{
+ FieldAccess::set_volatile(o, offset, x);
+}
+
+
/*
* Class: sun/misc/Unsafe
* Method: putOrderedObject
*/
JNIEXPORT void JNICALL Java_sun_misc_Unsafe_unpark(JNIEnv *env, jobject _this, jobject thread)
{
- /* XXX IMPLEMENT ME */
+ java_handle_t *h = (java_handle_t *) thread;
+ threadobject *t;
+
+#if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
+ h = java_lang_Thread(h).get_vmThread();
+#endif
+ t = thread_get_thread(h);
+
+ threads_unpark(t);
}
*/
JNIEXPORT void JNICALL Java_sun_misc_Unsafe_park(JNIEnv *env, jobject _this, jboolean isAbsolute, jlong time)
{
- /* XXX IMPLEMENT ME */
+ threads_park(isAbsolute, time);
+}
+
+
+/*
+ * Class: sun/misc/Unsafe
+ * Method: getLoadAverage
+ * Signature: ([DI)I
+ */
+JNIEXPORT jint JNICALL Java_sun_misc_Unsafe_getLoadAverage(JNIEnv *env, jobject _this, jdoubleArray loadavg, jint nelem)
+{
+ DoubleArray da(loadavg);
+
+#define MAX_SAMPLES 3
+
+ // Check the passed number of samples.
+ if ((nelem < 0) || (nelem > da.get_length()) || nelem > MAX_SAMPLES) {
+ exceptions_throw_arrayindexoutofboundsexception();
+ return -1;
+ }
+
+ // Actually retrieve samples.
+ double values[MAX_SAMPLES];
+ int result = os::getloadavg(values, nelem);
+
+ // Save samples into the given array.
+ for (int i = 0; i < result; i++) {
+ da.set_element(i, values[i]);
+ }
+
+ return result;
}
} // extern "C"
{ (char*) "putLong", (char*) "(JJ)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putLong__JJ },
{ (char*) "getFloat", (char*) "(J)F", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getFloat__J },
{ (char*) "putFloat", (char*) "(JF)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putFloat__JF },
+ { (char*) "getDouble", (char*) "(J)D", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getDouble__J },
+ { (char*) "putDouble", (char*) "(JD)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putDouble__JD },
{ (char*) "objectFieldOffset", (char*) "(Ljava/lang/reflect/Field;)J", (void*) (uintptr_t) &Java_sun_misc_Unsafe_objectFieldOffset },
{ (char*) "allocateMemory", (char*) "(J)J", (void*) (uintptr_t) &Java_sun_misc_Unsafe_allocateMemory },
-#if 0
- // OpenJDK 7
- { (char*) "setMemory", (char*) "(Ljava/lang/Object;JJB)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_setMemory },
- { (char*) "copyMemory", (char*) "(Ljava/lang/Object;JLjava/lang/Object;JJ)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_copyMemory },
-#else
- { (char*) "setMemory", (char*) "(JJB)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_setMemory },
- { (char*) "copyMemory", (char*) "(JJJ)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_copyMemory },
-#endif
+ // next two methods: OpenJDK 7
+ { (char*) "setMemory", (char*) "(Ljava/lang/Object;JJB)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_setMemory_jdk7 },
+ { (char*) "copyMemory", (char*) "(Ljava/lang/Object;JLjava/lang/Object;JJ)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_copyMemory_jdk7 },
+ // next two methods: OpenJDK 6
+ { (char*) "setMemory", (char*) "(JJB)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_setMemory_jdk6 },
+ { (char*) "copyMemory", (char*) "(JJJ)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_copyMemory_jdk6 },
{ (char*) "freeMemory", (char*) "(J)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_freeMemory },
{ (char*) "staticFieldOffset", (char*) "(Ljava/lang/reflect/Field;)J", (void*) (uintptr_t) &Java_sun_misc_Unsafe_staticFieldOffset },
{ (char*) "staticFieldBase", (char*) "(Ljava/lang/reflect/Field;)Ljava/lang/Object;", (void*) (uintptr_t) &Java_sun_misc_Unsafe_staticFieldBase },
{ (char*) "compareAndSwapLong", (char*) "(Ljava/lang/Object;JJJ)Z", (void*) (uintptr_t) &Java_sun_misc_Unsafe_compareAndSwapLong },
{ (char*) "getObjectVolatile", (char*) "(Ljava/lang/Object;J)Ljava/lang/Object;", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getObjectVolatile },
{ (char*) "putObjectVolatile", (char*) "(Ljava/lang/Object;JLjava/lang/Object;)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putObjectVolatile },
+ { (char*) "getBooleanVolatile", (char*) "(Ljava/lang/Object;J)Z", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getBooleanVolatile },
+ { (char*) "putBooleanVolatile", (char*) "(Ljava/lang/Object;JZ)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putBooleanVolatile },
{ (char*) "getByteVolatile", (char*) "(Ljava/lang/Object;J)B", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getByteVolatile },
+ { (char*) "putByteVolatile", (char*) "(Ljava/lang/Object;JB)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putByteVolatile },
+ { (char*) "getShortVolatile", (char*) "(Ljava/lang/Object;J)S", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getShortVolatile },
+ { (char*) "putShortVolatile", (char*) "(Ljava/lang/Object;JS)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putShortVolatile },
+ { (char*) "getCharVolatile", (char*) "(Ljava/lang/Object;J)C", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getCharVolatile },
+ { (char*) "putCharVolatile", (char*) "(Ljava/lang/Object;JC)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putCharVolatile },
{ (char*) "getIntVolatile", (char*) "(Ljava/lang/Object;J)I", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getIntVolatile },
{ (char*) "putIntVolatile", (char*) "(Ljava/lang/Object;JI)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putIntVolatile },
{ (char*) "getLongVolatile", (char*) "(Ljava/lang/Object;J)J", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getLongVolatile },
{ (char*) "putLongVolatile", (char*) "(Ljava/lang/Object;JJ)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putLongVolatile },
{ (char*) "getFloatVolatile", (char*) "(Ljava/lang/Object;J)F", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getFloatVolatile },
+ { (char*) "putFloatVolatile", (char*) "(Ljava/lang/Object;JF)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putFloatVolatile },
{ (char*) "getDoubleVolatile", (char*) "(Ljava/lang/Object;J)D", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getDoubleVolatile },
+ { (char*) "putDoubleVolatile", (char*) "(Ljava/lang/Object;JD)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putDoubleVolatile },
{ (char*) "putOrderedObject", (char*) "(Ljava/lang/Object;JLjava/lang/Object;)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putOrderedObject },
{ (char*) "putOrderedInt", (char*) "(Ljava/lang/Object;JI)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putOrderedInt },
{ (char*) "putOrderedLong", (char*) "(Ljava/lang/Object;JJ)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_putOrderedLong },
{ (char*) "unpark", (char*) "(Ljava/lang/Object;)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_unpark },
{ (char*) "park", (char*) "(ZJ)V", (void*) (uintptr_t) &Java_sun_misc_Unsafe_park },
+ { (char*) "getLoadAverage", (char*) "([DI)I", (void*) (uintptr_t) &Java_sun_misc_Unsafe_getLoadAverage },
};
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