package org.multiverse.stms.gamma.transactionalobjects;
import org.multiverse.api.LockMode;
import org.multiverse.api.Txn;
import org.multiverse.api.exceptions.LockedException;
import org.multiverse.api.functions.DoubleFunction;
import org.multiverse.api.predicates.DoublePredicate;
import org.multiverse.api.references.TxnDouble;
import org.multiverse.stms.gamma.GammaStm;
import org.multiverse.stms.gamma.Listeners;
import org.multiverse.stms.gamma.transactions.GammaTxn;
import static org.multiverse.api.GlobalStmInstance.getGlobalStmInstance;
import static org.multiverse.stms.gamma.GammaStmUtils.*;
import static org.multiverse.stms.gamma.ThreadLocalGammaObjectPool.getThreadLocalGammaObjectPool;
@SuppressWarnings({"OverlyComplexClass"})
public class GammaTxnDouble extends BaseGammaTxnRef implements TxnDouble {
public GammaTxnDouble(double value) {
this((GammaStm) getGlobalStmInstance(), value);
}
public GammaTxnDouble(final GammaTxn tx) {
this(tx, 0);
}
public GammaTxnDouble(final GammaTxn tx, final double value) {
super(tx.getConfig().stm, TYPE_DOUBLE);
arriveAndLock(1, LOCKMODE_EXCLUSIVE);
Tranlocal tranlocal = openForConstruction(tx);
tranlocal.long_value = doubleAsLong(value);
}
public GammaTxnDouble(final GammaStm stm) {
this(stm, 0);
}
public GammaTxnDouble(final GammaStm stm, final double value) {
super(stm, TYPE_DOUBLE);
this.long_value = doubleAsLong(value);
//noinspection PointlessArithmeticExpression
this.version = VERSION_UNCOMMITTED + 1;
}
@Override
public final double get() {
return get(getRequiredThreadLocalGammaTxn());
}
@Override
public final double get(final Txn tx) {
return get(asGammaTxn(tx));
}
public final double get(final GammaTxn tx) {
return longAsDouble(openForRead(tx, LOCKMODE_NONE).long_value);
}
@Override
public final double getAndLock(final LockMode lockMode) {
return getAndLock(getRequiredThreadLocalGammaTxn(), lockMode);
}
@Override
public final double getAndLock(final Txn tx, final LockMode lockMode) {
return getAndLock(asGammaTxn(tx), lockMode);
}
public final double getAndLock(final GammaTxn tx, final LockMode lockMode) {
return longAsDouble(getLong(tx, lockMode));
}
@Override
public final double set(final double value) {
return set(getRequiredThreadLocalGammaTxn(), value);
}
@Override
public final double set(final Txn tx, final double value) {
return set(asGammaTxn(tx), value);
}
public final double set(final GammaTxn tx, final double value) {
openForWrite(tx, LOCKMODE_NONE).long_value = doubleAsLong(value);
return value;
}
@Override
public final double setAndLock(final double value, final LockMode lockMode) {
return setAndLock(getRequiredThreadLocalGammaTxn(), doubleAsLong(value), lockMode);
}
@Override
public final double setAndLock(final Txn tx, final double value, final LockMode lockMode) {
return setAndLock(asGammaTxn(tx), value, lockMode);
}
public final double setAndLock(final GammaTxn tx, final double value, final LockMode lockMode) {
return longAsDouble(setLong(tx, lockMode, doubleAsLong(value), false));
}
@Override
public final double getAndSet(final double value) {
return getAndSet(getRequiredThreadLocalGammaTxn(), value);
}
@Override
public final double getAndSet(final Txn tx, final double value) {
return getAndSet(asGammaTxn(tx), value);
}
public final double getAndSet(final GammaTxn tx, final double value) {
Tranlocal tranlocal = openForWrite(tx, LOCKMODE_NONE);
double oldValue = longAsDouble(tranlocal.long_value);
tranlocal.long_value = doubleAsLong(value);
return oldValue;
}
@Override
public final double getAndSetAndLock(final double value, final LockMode lockMode) {
return getAndSetAndLock(getRequiredThreadLocalGammaTxn(), value, lockMode);
}
@Override
public final double getAndSetAndLock(final Txn tx, final double value, final LockMode lockMode) {
return getAndSetAndLock(asGammaTxn(tx), value, lockMode);
}
public final double getAndSetAndLock(final GammaTxn tx, final double value, final LockMode lockMode) {
return longAsDouble(setLong(tx, lockMode, doubleAsLong(value), true));
}
@Override
public final double atomicGet() {
return longAsDouble(atomicGetLong());
}
@Override
public final double atomicWeakGet() {
return longAsDouble(long_value);
}
@Override
public final double atomicSet(final double newValue) {
return longAsDouble(atomicSetLong(doubleAsLong(newValue), false));
}
@Override
public final double atomicGetAndSet(final double newValue) {
return longAsDouble(atomicSetLong(doubleAsLong(newValue), true));
}
@Override
public final void commute(final DoubleFunction function) {
commute(getRequiredThreadLocalGammaTxn(), function);
}
@Override
public final void commute(final Txn tx, final DoubleFunction function) {
commute(asGammaTxn(tx), function);
}
public final void commute(final GammaTxn tx, final DoubleFunction function) {
openForCommute(tx, function);
}
@Override
public final double atomicAlterAndGet(final DoubleFunction function) {
return atomicAlter(function, false);
}
@Override
public final double atomicGetAndAlter(final DoubleFunction function) {
return atomicAlter(function, true);
}
private double atomicAlter(final DoubleFunction function, final boolean returnOld) {
if (function == null) {
throw new NullPointerException("Function can't be null");
}
final int arriveStatus = arriveAndExclusiveLockOrBackoff();
if (arriveStatus == FAILURE) {
throw new LockedException();
}
final double oldValue = longAsDouble(long_value);
double newValue;
boolean abort = true;
try {
newValue = function.call(oldValue);
abort = false;
} finally {
if (abort) {
departAfterFailureAndUnlock();
}
}
if (oldValue == newValue) {
if ((arriveStatus & MASK_UNREGISTERED) != 0) {
unlockByUnregistered();
} else {
departAfterReadingAndUnlock();
}
return oldValue;
}
if ((arriveStatus & MASK_CONFLICT) != 0) {
stm.globalConflictCounter.signalConflict();
}
long_value = doubleAsLong(newValue);
//noinspection NonAtomicOperationOnVolatileField
version++;
final Listeners listeners = ___removeListenersAfterWrite();
departAfterUpdateAndUnlock();
if (listeners != null) {
listeners.openAll(getThreadLocalGammaObjectPool());
}
return returnOld ? oldValue : newValue;
}
@Override
public final double alterAndGet(final DoubleFunction function) {
return alterAndGet(getRequiredThreadLocalGammaTxn(), function);
}
@Override
public final double alterAndGet(final Txn tx, final DoubleFunction function) {
return alterAndGet(asGammaTxn(tx), function);
}
public final double alterAndGet(final GammaTxn tx, final DoubleFunction function) {
return alter(tx, function, false);
}
@Override
public final double getAndAlter(final DoubleFunction function) {
return getAndAlter(getRequiredThreadLocalGammaTxn(), function);
}
@Override
public final double getAndAlter(final Txn tx, final DoubleFunction function) {
return getAndAlter(asGammaTxn(tx), function);
}
public final double getAndAlter(final GammaTxn tx, final DoubleFunction function) {
return alter(tx, function, true);
}
public final double alter(final GammaTxn tx, final DoubleFunction function, boolean returnOld) {
if (tx == null) {
throw new NullPointerException();
}
if (function == null) {
tx.abort();
throw new NullPointerException("Function can't be null");
}
final Tranlocal write = openForWrite(tx, LOCKMODE_NONE);
boolean abort = true;
try {
double oldValue = longAsDouble(write.long_value);
write.long_value = doubleAsLong(function.call(oldValue));
abort = false;
return returnOld ? oldValue : longAsDouble(write.long_value);
} finally {
if (abort) {
tx.abort();
}
}
}
@Override
public final boolean atomicCompareAndSet(final double expectedValue, final double newValue) {
return atomicCompareAndSetLong(doubleAsLong(expectedValue), doubleAsLong(newValue));
}
@Override
public final double getAndIncrement(final double amount) {
return getAndIncrement(getRequiredThreadLocalGammaTxn(), amount);
}
@Override
public final double getAndIncrement(final Txn tx, final double amount) {
return getAndIncrement(asGammaTxn(tx), amount);
}
public final double getAndIncrement(final GammaTxn tx, final double amount) {
Tranlocal tranlocal = openForWrite(tx, LOCKMODE_NONE);
double oldValue = longAsDouble(tranlocal.long_value);
tranlocal.long_value = doubleAsLong(oldValue + amount);
return oldValue;
}
@Override
public final double atomicGetAndIncrement(final double amount) {
return atomicIncrement(amount, true);
}
@Override
public final double atomicIncrementAndGet(final double amount) {
return atomicIncrement(amount, false);
}
private double atomicIncrement(final double amount, boolean returnOld) {
final int arriveStatus = arriveAndExclusiveLockOrBackoff();
if (arriveStatus == FAILURE) {
throw new LockedException();
}
final double oldValue = longAsDouble(long_value);
if (amount == 0) {
if ((arriveStatus & MASK_UNREGISTERED) != 0) {
unlockByUnregistered();
} else {
departAfterReadingAndUnlock();
}
return oldValue;
}
if ((arriveStatus & MASK_CONFLICT) != 0) {
stm.globalConflictCounter.signalConflict();
}
final double newValue = oldValue + amount;
long_value = doubleAsLong(newValue);
//noinspection NonAtomicOperationOnVolatileField
version++;
final Listeners listeners = ___removeListenersAfterWrite();
departAfterUpdateAndUnlock();
if (listeners != null) {
listeners.openAll(getThreadLocalGammaObjectPool());
}
return returnOld ? oldValue : newValue;
}
@Override
public final double incrementAndGet(final double amount) {
return incrementAndGet(getRequiredThreadLocalGammaTxn(), amount);
}
@Override
public final double incrementAndGet(final Txn tx, final double amount) {
return incrementAndGet(asGammaTxn(tx), amount);
}
public final double incrementAndGet(final GammaTxn tx, final double amount) {
Tranlocal tranlocal = openForWrite(tx, LOCKMODE_NONE);
double result = longAsDouble(tranlocal.long_value) + amount;
tranlocal.long_value = doubleAsLong(result);
return result;
}
@Override
public final void await(final double value) {
await(getRequiredThreadLocalGammaTxn(), value);
}
@Override
public final void await(final Txn tx, final double value) {
await(asGammaTxn(tx), value);
}
public final void await(final GammaTxn tx, final double value) {
if (longAsDouble(openForRead(tx, LOCKMODE_NONE).long_value) != value) {
tx.retry();
}
}
@Override
public final void await(final DoublePredicate predicate) {
await(getRequiredThreadLocalGammaTxn(), predicate);
}
@Override
public final void await(final Txn tx, final DoublePredicate predicate) {
await(asGammaTxn(tx), predicate);
}
public final void await(final GammaTxn tx, final DoublePredicate predicate) {
final Tranlocal tranlocal = openForRead(tx, LOCKMODE_NONE);
boolean abort = true;
try {
if (!predicate.evaluate(longAsDouble(tranlocal.long_value))) {
tx.retry();
}
abort = false;
} finally {
if (abort) {
tx.abort();
}
}
}
@Override
public final String toDebugString() {
return String.format("GammaTxnDouble{orec=%s, version=%s, value=%s, hasListeners=%s)",
___toOrecString(), version, longAsDouble(long_value), listeners != null);
}
@Override
public final String toString() {
return toString(getRequiredThreadLocalGammaTxn());
}
@Override
public final String toString(Txn tx) {
return toString(asGammaTxn(tx));
}
public final String toString(GammaTxn tx) {
return Double.toString(get(tx));
}
@Override
public final String atomicToString() {
return Double.toString(atomicGet());
}
}