List of allocateMemory() Examples

Examples of allocateMemory()

sun.misc.Unsafe.allocateMemory()
Allocates a new block of native memory, of the given size in bytes. The contents of the memory are uninitialized; they will generally be garbage. The resulting native pointer will never be zero, and will be aligned for all value types. Dispose of this memory by calling {@link #freeMemory}, or resize it with {@link #reallocateMemory}. @throws IllegalArgumentException if the size is negative or too largefor the native size_t type @throws OutOfMemoryError if the allocation is refused by the system @see #getByte(long) @see #putByte(long,byte)

Examples of sun.misc.Unsafe.allocateMemory()

      throws NoSuchFieldException, IllegalAccessException {
    // work around permissions issues
    Field f = Unsafe.class.getDeclaredField("theUnsafe");
    f.setAccessible(true);
    Unsafe unsafe = (Unsafe)f.get(null);
    long addr = unsafe.allocateMemory(100);


    // test of endianness
    unsafe.putLong(addr, 1);
    System.out.println(unsafe.getByte(addr));

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Examples of sun.misc.Unsafe.allocateMemory()

  @Test(groups = "fast")
  public void testSanity() throws Exception {
    Unsafe unsafe = UnsafeAccessor.get();


    int size = 1024 * 1024;
    long ptr = unsafe.allocateMemory(size);
    long writePtr = ptr;
    
    for (int i = 0; i < size; i++) {
      byte b = (byte)(i % 127);

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