/** * Not reentrant lock acquisition operation (ie {@link #tryAcquire()}). * It tries to acquire the lock until will succeed (ie {@link AcquireResult#Done}), got interrupted (ie {@link AcquireResult#Exit}) * or exceed {@code tryAcquireTimeoutMillis}. * After each failed attempt is performed a {@link Pauser#idle} call. * If the specified timeout is <=0 then it behaves as {@link #tryAcquire(ExitCondition, Pauser)}. */ default AcquireResult tryAcquire(long tryAcquireTimeoutMillis, Pauser pauser, ExitCondition exitCondition) { if (tryAcquireTimeoutMillis < 0) { return tryAcquire(exitCondition, pauser); } final long timeoutInNanosecond = TimeUnit.MILLISECONDS.toNanos(tryAcquireTimeoutMillis); final long startAcquire = System.nanoTime(); while (exitCondition.keepRunning()) { if (tryAcquire()) { return AcquireResult.Done; } else if (System.nanoTime() - startAcquire >= timeoutInNanosecond) { return AcquireResult.Timeout; } else { pauser.idle(); //check before doing anything if time is expired if (System.nanoTime() - startAcquire >= timeoutInNanosecond) { return AcquireResult.Timeout; } } } return AcquireResult.Exit; }
/** * Not reentrant lock acquisition operation (ie {@link #tryAcquire()}). * It tries to acquire the lock until will succeed (ie {@link AcquireResult#Done})or got interrupted (ie {@link AcquireResult#Exit}). * After each failed attempt is performed a {@link Pauser#idle} call. */ default AcquireResult tryAcquire(ExitCondition exitCondition, Pauser pauser) { while (exitCondition.keepRunning()) { if (tryAcquire()) { return AcquireResult.Done; } else { pauser.idle(); } } return AcquireResult.Exit; }