/** * @param page Page. */ private void deallocate(Page page) { assert page != null; mem.release(page.ptr, page.size); }
/** * Releases allocated table. */ void destruct() { lock.writeLock().lock(); try { if (tblAddr == 0) return; for (long binAddr = tblAddr, tblEnd = (tblAddr + memCap); binAddr < tblEnd; binAddr += 8) { long entryAddr = Bin.first(binAddr, mem); if (entryAddr == 0) continue; while (true) { long next = Entry.nextAddress(entryAddr, mem); mem.release(entryAddr, Entry.size(entryAddr, mem)); if (next == 0) break; else entryAddr = next; } } mem.releaseSystem(tblAddr, memCap); } finally { tblAddr = 0; lock.writeLock().unlock(); } }
/** * Releases off-heap memory allocated by {@link #putOffHeap} method. * * @param ptr Optional pointer returned by {@link #putOffHeap}. */ public void removeOffHeap(long ptr) { if (ptr != 0) release(ptr, readInt(ptr) + 5); }
/** {@inheritDoc} */ @Override public void close() { super.close(); mem.release(heads, HEADS_SIZE); }
/** * Deferred delete. */ synchronized void deferredDelete() { if (!deleted.get() || hasRefs()) return; assert refCnt.get() == 0; for (int i = 0; i < buffers.idx; i++) dir.memory().release(buffers.arr[i], BUFFER_SIZE); buffers = null; }
/** * Stores value to the specified memory location. If specified pointer is {@code 0}, then will * allocate required space. If size of allocated space is not enough to hold given values, will * reallocate memory. * * @param ptr Optional pointer to allocated memory. First 4 bytes in allocated region must contain * size of allocated chunk. * @param val Value to store. * @param type Value type. * @return Pointer. */ public long putOffHeap(long ptr, byte[] val, byte type) { int size = val.length; assert size != 0; int allocated = ptr == 0 ? 0 : readInt(ptr); if (allocated != size) { if (ptr != 0) release(ptr, allocated + 5); ptr = allocate(size + 5); writeInt(ptr, size); } writeByte(ptr + 4, type); writeBytes(ptr + 5, val); return ptr; }
/** * @throws Exception If failed. */ @Test public void testBytes() throws Exception { GridUnsafeMemory mem = new GridUnsafeMemory(64); String s = "123"; byte[] bytes = s.getBytes(); int size = bytes.length * 2; long addr = mem.allocate(size); try { mem.writeBytes(addr, bytes); byte[] read = mem.readBytes(addr, bytes.length); assert Arrays.equals(bytes, read); } finally { mem.release(addr, size); } }
/** * @param s String. * @throws Exception If failed. */ public void checkCompare(String s) throws Exception { byte[] bytes = s.getBytes(); int size = bytes.length + 8; GridUnsafeMemory mem = new GridUnsafeMemory(size); for (int i = 0; i < 8; i++) { long addr = mem.allocate(size); long ptr = addr + i; try { mem.writeBytes(ptr, bytes); assert mem.compare(ptr, bytes); byte[] read = mem.readBytes(ptr, bytes.length); assert Arrays.equals(bytes, read); } finally { mem.release(addr, size); } } }
mem.release(addr, size);
/** * */ @Test public void testDouble() { GridUnsafeMemory mem = new GridUnsafeMemory(64); int size = 32; long addr = mem.allocate(size); try { double d1 = 0.2323423; mem.writeDouble(addr, d1); assertEquals(d1, mem.readDouble(addr)); } finally { mem.release(addr, size); } }
mem.release(addr, block);
/** * */ @Test public void testFloat() { GridUnsafeMemory mem = new GridUnsafeMemory(64); int size = 32; long addr = mem.allocate(size); try { float f1 = 0.23223f; mem.writeFloat(addr, f1); assertEquals(f1, mem.readFloat(addr)); } finally { mem.release(addr, size); } }
/** * @throws Exception If failed. */ @Test public void testShort() throws Exception { GridUnsafeMemory mem = new GridUnsafeMemory(64); int size = 16; long addr = mem.allocate(size); try { short s1 = (short)56777; mem.writeShort(addr, s1); assertEquals(s1, mem.readShort(addr)); } finally { mem.release(addr, size); } }
mem.release(relAddr, relSize);
/** * @throws Exception If failed. */ @Test public void testByte() throws Exception { GridUnsafeMemory mem = new GridUnsafeMemory(64); int size = 32; long addr = mem.allocate(size); try { byte b1 = 123; mem.writeByte(addr, b1); byte b2 = mem.readByte(addr); assertEquals(b1, b2); byte b3 = 11; mem.writeByteVolatile(addr, b3); assertEquals(b3, mem.readByteVolatile(addr)); } finally { mem.release(addr, size); } }
mem.release(relAddr, relSize);
/** * @throws Exception If failed. */ @Test public void testLong() throws Exception { GridUnsafeMemory mem = new GridUnsafeMemory(64); int size = 32; long addr = mem.allocate(size); try { long l1 = 123456; mem.writeLong(addr, l1); long l2 = mem.readLong(addr); assertEquals(l1, l2); long l3 = 654321; mem.writeLongVolatile(addr, l3); long l4 = 666666; assertTrue(mem.casLong(addr, l3, l4)); assertFalse(mem.casLong(addr, l3, 0)); assertEquals(l4, mem.readLongVolatile(addr)); } finally { mem.release(addr, size); } }
/** * @throws Exception If failed. */ @Test public void testInt() throws Exception { GridUnsafeMemory mem = new GridUnsafeMemory(64); int size = 32; long addr = mem.allocate(size); try { int i1 = 123; mem.writeInt(addr, i1); int i2 = mem.readInt(addr); assertEquals(i1, i2); int i3 = 321; mem.writeIntVolatile(addr, i3); int i4 = 222; assertTrue(mem.casInt(addr, i3, i4)); assertFalse(mem.casInt(addr, i3, 0)); assertEquals(i4, mem.readIntVolatile(addr)); } finally { mem.release(addr, size); } }
mem.release(relAddr, relSize);
/** * Deferred delete. */ synchronized void deferredDelete() { if (!deleted.get() || hasRefs()) return; assert refCnt.get() == 0; for (int i = 0; i < buffers.idx; i++) dir.memory().release(buffers.arr[i], BUFFER_SIZE); buffers = null; }