Examples with FastThreadLocalThread io.netty.util.concurrent.FastThreadLocalThread used on opensource projects

Example 6 with FastThreadLocalThread

use of io.netty.util.concurrent.FastThreadLocalThread in project turbo-rpc by hank-whu.

the class AttachmentThreadUtils method getOrUpdate.

/**
 * @param index
 *            通过 {@link #nextVarIndex()} 获得
 *
 * @param producer
 *            尽量使用final常量以获得更好的性能
 *
 * @return
 */
@SuppressWarnings("unchecked")
public static <T> T getOrUpdate(int index, Supplier<T> producer) {
    Thread currentThread = Thread.currentThread();
    if (currentThread instanceof FastThreadLocalThread) {
        // 很快，1.5x ThreadLocal性能
        FastThreadLocalThread fastThread = (FastThreadLocalThread) currentThread;
        InternalThreadLocalMap threadLocalMap = fastThread.threadLocalMap();
        if (threadLocalMap == null) {
            // 会自动赋值的
            threadLocalMap = InternalThreadLocalMap.get();
        }
        Object obj = threadLocalMap.indexedVariable(index);
        if (obj != InternalThreadLocalMap.UNSET) {
            return (T) obj;
        }
        obj = producer.get();
        threadLocalMap.setIndexedVariable(index, obj);
        return (T) obj;
    }
    if (currentThread instanceof AttachmentThread) {
        // 很快，1.5x ThreadLocal性能
        AttachmentThread attachmentThread = (AttachmentThread) currentThread;
        T result = attachmentThread.get(index);
        if (result != null) {
            return result;
        } else {
            return attachmentThread.getOrUpdate(index, producer);
        }
    }
    long currentThreadId = currentThread.getId();
    if (currentThreadId < 1024L * 16L) {
        // 跟直接使用ThreadLocal相同的性能
        IntToObjectArrayMap<Object> varMap = threadAttachmentMap.get((int) currentThreadId);
        if (varMap == null) {
            varMap = // 会自动赋值的
            threadAttachmentMap.getOrUpdate((int) currentThreadId, () -> new IntToObjectArrayMap<>());
        }
        Object obj = varMap.get(index);
        if (obj != null) {
            return (T) obj;
        } else {
            return (T) varMap.getOrUpdate(index, (Supplier<Object>) producer);
        }
    }
    {
        // 很慢，0.7x ThreadLocal性能
        IntToObjectArrayMap<Object> varMap = SLOW_THREAD_LOCAL_HOLDER.get();
        Object obj = varMap.get(index);
        if (obj != null) {
            return (T) obj;
        } else {
            return (T) varMap.getOrUpdate(index, (Supplier<Object>) producer);
        }
    }
}

Example 7 with FastThreadLocalThread

use of io.netty.util.concurrent.FastThreadLocalThread in project turbo-rpc by hank-whu.

the class AttachmentThreadUtils method get.

/**
 * @param index
 *            通过 {@link #nextVarIndex()} 获得
 *
 * @return
 */
@SuppressWarnings("unchecked")
public static <T> T get(int index) {
    Thread currentThread = Thread.currentThread();
    if (currentThread instanceof FastThreadLocalThread) {
        // 很快，1.5x ThreadLocal性能
        FastThreadLocalThread fastThread = (FastThreadLocalThread) currentThread;
        InternalThreadLocalMap threadLocalMap = fastThread.threadLocalMap();
        if (threadLocalMap == null) {
            // 会自动赋值的
            threadLocalMap = InternalThreadLocalMap.get();
        }
        Object obj = threadLocalMap.indexedVariable(index);
        if (obj != InternalThreadLocalMap.UNSET) {
            return (T) obj;
        } else {
            return null;
        }
    }
    if (currentThread instanceof AttachmentThread) {
        // 很快，1.5x ThreadLocal性能
        AttachmentThread attachmentThread = (AttachmentThread) currentThread;
        return attachmentThread.get(index);
    }
    long currentThreadId = currentThread.getId();
    if (currentThreadId < 1024L * 16L) {
        // 跟直接使用ThreadLocal相同的性能
        IntToObjectArrayMap<Object> varMap = threadAttachmentMap.get((int) currentThreadId);
        if (varMap == null) {
            varMap = // 会自动赋值的
            threadAttachmentMap.getOrUpdate((int) currentThreadId, () -> new IntToObjectArrayMap<>());
        }
        return (T) varMap.get(index);
    }
    {
        // 很慢，0.7x ThreadLocal性能
        IntToObjectArrayMap<Object> varMap = SLOW_THREAD_LOCAL_HOLDER.get();
        return (T) varMap.get(index);
    }
}