本文整理汇总了Java中sun.misc.VM类的典型用法代码示例。如果您正苦于以下问题：Java VM类的具体用法？Java VM怎么用？Java VM使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
VM类属于sun.misc包，在下文中一共展示了VM类的10个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: runFinalization
import sun.misc.VM; //导入依赖的package包/类
static void runFinalization() {
if (!VM.isBooted()) {
return;
}
forkSecondaryFinalizer(new Runnable() {
private volatile boolean running;
public void run() {
if (running)
return;
final JavaLangAccess jla = SharedSecrets.getJavaLangAccess();
running = true;
for (;;) {
Finalizer f = (Finalizer)queue.poll();
if (f == null) break;
f.runFinalizer(jla);
}
}
});
}
示例2: runAllFinalizers
import sun.misc.VM; //导入依赖的package包/类
static void runAllFinalizers() {
if (!VM.isBooted()) {
return;
}
forkSecondaryFinalizer(new Runnable() {
private volatile boolean running;
public void run() {
if (running)
return;
final JavaLangAccess jla = SharedSecrets.getJavaLangAccess();
running = true;
for (;;) {
Finalizer f;
synchronized (lock) {
f = unfinalized;
if (f == null) break;
unfinalized = f.next;
}
f.runFinalizer(jla);
}}});
}
示例3: checkProxyAccess
import sun.misc.VM; //导入依赖的package包/类
private static void checkProxyAccess(Class<?> caller,
ClassLoader loader,
Class<?>... interfaces)
{
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
ClassLoader ccl = caller.getClassLoader();
if (VM.isSystemDomainLoader(loader) && !VM.isSystemDomainLoader(ccl)) {
sm.checkPermission(SecurityConstants.GET_CLASSLOADER_PERMISSION);
}
ReflectUtil.checkProxyPackageAccess(ccl, interfaces);
}
}
示例4: arraycopy
import sun.misc.VM; //导入依赖的package包/类
public static void arraycopy(Object srcTaint, Object src, int srcPosTaint, int srcPos, Object destTaint, Object dest, int destPosTaint, int destPos, int lengthTaint, int length) {
System.arraycopy(src, srcPos, dest, destPos, length);
if (VM.isBooted$$PHOSPHORTAGGED(new TaintedBooleanWithIntTag()).val && srcTaint != null && destTaint != null) {
if(((LazyArrayIntTags)srcTaint).taints == null && ((LazyArrayIntTags)destTaint).taints == null)
{
return;
}
else if(((LazyArrayIntTags)srcTaint).taints != null)
{
if(((LazyArrayIntTags)destTaint).taints == null)
((LazyArrayIntTags)destTaint).taints = new int[Array.getLength(dest)];
System.arraycopy(((LazyArrayIntTags)srcTaint).taints, srcPos, ((LazyArrayIntTags)destTaint).taints, destPos, length);
}
else
{
if(((LazyArrayIntTags)destTaint).taints == null)
((LazyArrayIntTags)destTaint).taints = new int[Array.getLength(dest)];
else {
int[] empty = new int[length];
System.arraycopy(empty, 0, ((LazyArrayIntTags)destTaint).taints, destPos, length);
}
}
}
}
示例5: DirectByteBuffer
import sun.misc.VM; //导入依赖的package包/类
DirectByteBuffer(int cap) { // package-private
super(-1, 0, cap, cap);
boolean pa = VM.isDirectMemoryPageAligned();
int ps = Bits.pageSize();
long size = Math.max(1L, (long)cap + (pa ? ps : 0));
Bits.reserveMemory(size, cap);
long base = 0;
try {
base = unsafe.allocateMemory(size);
} catch (OutOfMemoryError x) {
Bits.unreserveMemory(size, cap);
throw x;
}
unsafe.setMemory(base, size, (byte) 0);
if (pa && (base % ps != 0)) {
// Round up to page boundary
address = base + ps - (base & (ps - 1));
} else {
address = base;
}
cleaner = Cleaner.create(this, new Deallocator(base, size, cap));
att = null;
}
示例6: checkName
import sun.misc.VM; //导入依赖的package包/类
private boolean checkName(String name) {
if ((name == null) || (name.length() == 0))
return true;
if ((name.indexOf('/') != -1)
|| (!VM.allowArraySyntax() && (name.charAt(0) == '[')))
return false;
return true;
}
示例7: reserveMemory
import sun.misc.VM; //导入依赖的package包/类
static void reserveMemory(long size, int cap) {
synchronized (Bits.class) {
if (!memoryLimitSet && VM.isBooted()) {
maxMemory = VM.maxDirectMemory();
memoryLimitSet = true;
}
// -XX:MaxDirectMemorySize limits the total capacity rather than the
// actual memory usage, which will differ when buffers are page
// aligned.
if (cap <= maxMemory - totalCapacity) {
reservedMemory += size;
totalCapacity += cap;
count++;
return;
}
}
System.gc();
try {
Thread.sleep(100);
} catch (InterruptedException x) {
// Restore interrupt status
Thread.currentThread().interrupt();
}
synchronized (Bits.class) {
if (totalCapacity + cap > maxMemory)
throw new OutOfMemoryError("Direct buffer memory");
reservedMemory += size;
totalCapacity += cap;
count++;
}
}
示例8: checkName
import sun.misc.VM; //导入依赖的package包/类
static boolean checkName(String name) {
if ((name == null) || (name.length() == 0))
return true;
if ((name.indexOf('/') != -1)
|| (!VM.allowArraySyntax() && (name.charAt(0) == '[')))
return false;
return true;
}
示例9: checkName
import sun.misc.VM; //导入依赖的package包/类
private boolean checkName(String name) {
if ((name == null) || (name.length() == 0))
return true;
if ((name.indexOf('/') != -1)
|| (!VM.allowArraySyntax() && (name.charAt(0) == '[')))
return false;
return true;
}
示例10: reserveMemory
import sun.misc.VM; //导入依赖的package包/类
static void reserveMemory(long size) {
synchronized (Bits.class) {
if (!memoryLimitSet && VM.isBooted()) {
maxMemory = VM.maxDirectMemory();
memoryLimitSet = true;
}
if (size <= maxMemory - reservedMemory) {
reservedMemory += size;
return;
}
}
System.gc();
try {
Thread.sleep(100);
} catch (InterruptedException x) {
// Restore interrupt status
Thread.currentThread().interrupt();
}
synchronized (Bits.class) {
if (reservedMemory + size > maxMemory)
throw new OutOfMemoryError("Direct buffer memory");
reservedMemory += size;
}
}