40 lines
1.3 KiB
Java
40 lines
1.3 KiB
Java
/*
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* Copyright 2018 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.channel;
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/**
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* The execution context for an {@link IoHandler}.
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* All method must be called from the {@link EventLoop} thread.
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*/
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public interface IoExecutionContext {
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/**
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* Returns {@code true} if blocking for IO is allowed or if we should try to do a non-blocking request for IO to be
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* ready.
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*/
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boolean canBlock();
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/**
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* Returns the amount of time left until the scheduled task with the closest dead line should run..
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*/
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long delayNanos(long currentTimeNanos);
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/**
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* Returns the absolute point in time (relative to {@link SingleThreadEventLoop#nanoTime()}) at which the the next
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* closest scheduled task should run.
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*/
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long deadlineNanos();
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}
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