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199 lines
10 KiB
Java
199 lines
10 KiB
Java
/*
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* This file is part of the public ComputerCraft API - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2021. This API may be redistributed unmodified and in full only.
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* For help using the API, and posting your mods, visit the forums at computercraft.info.
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*/
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package dan200.computercraft.api.peripheral;
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import dan200.computercraft.api.ComputerCraftAPI;
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import dan200.computercraft.api.filesystem.IMount;
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import dan200.computercraft.api.filesystem.IWritableMount;
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import dan200.computercraft.api.lua.ILuaCallback;
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import dan200.computercraft.api.lua.ILuaContext;
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import dan200.computercraft.api.lua.ILuaTask;
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import dan200.computercraft.api.lua.MethodResult;
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import net.minecraft.world.World;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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import java.util.Map;
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/**
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* The interface passed to peripherals by computers or turtles, providing methods that they can call. This should not be implemented by your classes. Do not
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* interact with computers except via this interface.
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*/
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public interface IComputerAccess
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{
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/**
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* Mount a mount onto the computer's file system in a read only mode.
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*
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* @param desiredLocation The location on the computer's file system where you would like the mount to be mounted.
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* @param mount The mount object to mount on the computer.
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* @return The location on the computer's file system where you the mount mounted, or {@code null} if there was already a file in the desired location.
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* Store this value if you wish to unmount the mount later.
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* @throws NotAttachedException If the peripheral has been detached.
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* @see ComputerCraftAPI#createSaveDirMount(World, String, long)
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* @see ComputerCraftAPI#createResourceMount(String, String)
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* @see #mount(String, IMount, String)
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* @see #mountWritable(String, IWritableMount)
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* @see #unmount(String)
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* @see IMount
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*/
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@Nullable
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default String mount( @Nonnull String desiredLocation, @Nonnull IMount mount )
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{
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return mount( desiredLocation, mount, getAttachmentName() );
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}
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/**
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* Mount a mount onto the computer's file system in a read only mode.
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*
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* @param desiredLocation The location on the computer's file system where you would like the mount to be mounted.
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* @param mount The mount object to mount on the computer.
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* @param driveName A custom name to give for this mount location, as returned by {@code fs.getDrive()}.
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* @return The location on the computer's file system where you the mount mounted, or {@code null} if there was already a file in the desired location.
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* Store this value if you wish to unmount the mount later.
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* @throws NotAttachedException If the peripheral has been detached.
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* @see ComputerCraftAPI#createSaveDirMount(World, String, long)
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* @see ComputerCraftAPI#createResourceMount(String, String)
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* @see #mount(String, IMount)
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* @see #mountWritable(String, IWritableMount)
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* @see #unmount(String)
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* @see IMount
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*/
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@Nullable
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String mount( @Nonnull String desiredLocation, @Nonnull IMount mount, @Nonnull String driveName );
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/**
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* Get a string, unique to the computer, by which the computer refers to this peripheral. For directly attached peripherals this will be
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* "left","right","front","back",etc, but for peripherals attached remotely it will be different. It is good practice to supply this string when raising
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* events to the computer, so that the computer knows from which peripheral the event came.
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*
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* @return A string unique to the computer, but not globally.
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* @throws NotAttachedException If the peripheral has been detached.
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*/
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@Nonnull
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String getAttachmentName();
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/**
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* Mount a mount onto the computer's file system in a writable mode.
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*
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* @param desiredLocation The location on the computer's file system where you would like the mount to be mounted.
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* @param mount The mount object to mount on the computer.
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* @return The location on the computer's file system where you the mount mounted, or null if there was already a file in the desired location. Store
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* this value if you wish to unmount the mount later.
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* @throws NotAttachedException If the peripheral has been detached.
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* @see ComputerCraftAPI#createSaveDirMount(World, String, long)
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* @see ComputerCraftAPI#createResourceMount(String, String)
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* @see #mount(String, IMount)
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* @see #unmount(String)
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* @see IMount
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*/
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@Nullable
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default String mountWritable( @Nonnull String desiredLocation, @Nonnull IWritableMount mount )
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{
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return mountWritable( desiredLocation, mount, getAttachmentName() );
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}
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/**
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* Mount a mount onto the computer's file system in a writable mode.
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*
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* @param desiredLocation The location on the computer's file system where you would like the mount to be mounted.
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* @param mount The mount object to mount on the computer.
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* @param driveName A custom name to give for this mount location, as returned by {@code fs.getDrive()}.
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* @return The location on the computer's file system where you the mount mounted, or null if there was already a file in the desired location. Store
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* this value if you wish to unmount the mount later.
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* @throws NotAttachedException If the peripheral has been detached.
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* @see ComputerCraftAPI#createSaveDirMount(World, String, long)
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* @see ComputerCraftAPI#createResourceMount(String, String)
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* @see #mount(String, IMount)
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* @see #unmount(String)
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* @see IMount
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*/
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String mountWritable( @Nonnull String desiredLocation, @Nonnull IWritableMount mount, @Nonnull String driveName );
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/**
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* Unmounts a directory previously mounted onto the computers file system by {@link #mount(String, IMount)} or {@link #mountWritable(String,
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* IWritableMount)}.
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*
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* When a directory is unmounted, it will disappear from the computers file system, and the user will no longer be able to access it. All directories
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* mounted by a mount or mountWritable are automatically unmounted when the peripheral is attached if they have not been explicitly unmounted.
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*
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* Note that you cannot unmount another peripheral's mounts.
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*
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* @param location The desired location in the computers file system of the directory to unmount. This must be the location of a directory
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* previously mounted by {@link #mount(String, IMount)} or {@link #mountWritable(String, IWritableMount)}, as indicated by their return value.
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* @throws NotAttachedException If the peripheral has been detached.
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* @throws IllegalStateException If the mount does not exist, or was mounted by another peripheral.
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* @see #mount(String, IMount)
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* @see #mountWritable(String, IWritableMount)
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*/
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void unmount( @Nullable String location );
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/**
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* Returns the numerical ID of this computer.
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*
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* This is the same number obtained by calling {@code os.getComputerID()} or running the "id" program from lua, and is guaranteed unique. This number
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* will be positive.
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*
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* @return The identifier.
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*/
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int getID();
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/**
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* Causes an event to be raised on this computer, which the computer can respond to by calling {@code os.pullEvent()}. This can be used to notify the
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* computer when things happen in the world or to this peripheral.
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*
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* @param event A string identifying the type of event that has occurred, this will be returned as the first value from {@code os.pullEvent()}. It
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* is recommended that you you choose a name that is unique, and recognisable as originating from your peripheral. eg: If your peripheral type is
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* "button", a suitable event would be "button_pressed".
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* @param arguments In addition to a name, you may pass an array of extra arguments to the event, that will be supplied as extra return values to
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* os.pullEvent(). Objects in the array will be converted to lua data types in the same fashion as the return values of IPeripheral.callMethod().
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*
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* You may supply {@code null} to indicate that no arguments are to be supplied.
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* @throws NotAttachedException If the peripheral has been detached.
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* @see MethodResult#pullEvent(String, ILuaCallback)
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*/
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void queueEvent( @Nonnull String event, @Nullable Object... arguments );
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/**
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* Get a set of peripherals that this computer access can "see", along with their attachment name.
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*
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* This may include other peripherals on the wired network or peripherals on other sides of the computer.
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*
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* @return All reachable peripherals
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* @throws NotAttachedException If the peripheral has been detached.
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* @see #getAttachmentName()
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* @see #getAvailablePeripheral(String)
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*/
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@Nonnull
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Map<String, IPeripheral> getAvailablePeripherals();
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/**
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* Get a reachable peripheral with the given attachment name. This is a equivalent to {@link #getAvailablePeripherals()}{@code .get(name)}, though may
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* be more efficient.
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*
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* @param name The peripheral's attached name
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* @return The reachable peripheral, or {@code null} if none can be found.
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* @see #getAvailablePeripherals()
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*/
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@Nullable
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IPeripheral getAvailablePeripheral( @Nonnull String name );
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/**
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* Get a {@link IWorkMonitor} for tasks your peripheral might execute on the main (server) thread.
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*
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* This should be used to ensure your peripheral integrates with ComputerCraft's monitoring and limiting of how much server time each computer consumes.
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* You should not need to use this if you use {@link ILuaContext#issueMainThreadTask(ILuaTask)} - this is intended for mods with their own system for
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* running work on the main thread.
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*
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* Please note that the returned implementation is <em>not</em> thread-safe, and should only be used from the main thread.
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*
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* @return The work monitor for the main thread, or {@code null} if this computer does not have one.
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* @throws NotAttachedException If the peripheral has been detached.
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*/
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@Nonnull
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IWorkMonitor getMainThreadMonitor();
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}
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