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The driver API for engineblock; Provides the interfaces needed to build drivers that can be loaded by engineblock core

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/*
*   Copyright 2015 jshook
*   Licensed under the Apache License, Version 2.0 (the "License");
*   you may not use this file except in compliance with the License.
*   You may obtain a copy of the License at
*
*       http://www.apache.org/licenses/LICENSE-2.0
*
*   Unless required by applicable law or agreed to in writing, software
*   distributed under the License is distributed on an "AS IS" BASIS,
*   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*   See the License for the specific language governing permissions and
*   limitations under the License.
*/
package io.engineblock.activityapi;

/**
 * An ActionDispenser is created for each Activity instance within a scenario.
 * When a thread is created, the motor and its input and action instances are resolved.
 * The ActionDispenser is responsible for choosing how the action is resolved,
 * whether that is a shared thread-safe action or an action per slot.
 */
public interface ActionDispenser {

    /**
     * Resolve (find or create) an Action instance for the slot specified.
     * The action is not required to be per-slot (per-thread), but any shared actions must be thread safe.
     * @param slot The numbered slot within the activity instance for this action.
     * @return A new or cached Action for the specified slot.
     */
    Action getAction(int slot);
}




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