hudson.slaves

Class WorkspaceList

java.lang.Object

hudson.slaves.WorkspaceList

public final class WorkspaceList
extends Object

Used by Computer to keep track of workspaces that are actively in use.

Since:

1.319

Author:

Kohsuke Kawaguchi

See Also:

Computer.getWorkspaceList()

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	WorkspaceList.Entry Book keeping for workspace allocation.
static class	WorkspaceList.Lease Represents a leased workspace that needs to be returned later.

Constructor Summary

Constructors

Constructor and Description
WorkspaceList()

Method Summary

Modifier and Type	Method and Description
WorkspaceList.Lease	acquire(FilePath p) Acquires the given workspace.
WorkspaceList.Lease	acquire(FilePath p, boolean quick) See acquire(FilePath)
WorkspaceList.Lease	acquire(FilePath p, boolean quick, Object context) See acquire(FilePath,boolean)
WorkspaceList.Lease	allocate(FilePath base) Allocates a workspace by adding some variation to the given base to make it unique.
WorkspaceList.Lease	allocate(FilePath base, Object context) See allocate(FilePath)
WorkspaceList.Lease	record(FilePath p) Just record that this workspace is being used, without paying any attention to the synchronization support.
static FilePath	tempDir(FilePath ws) Locates a conventional temporary directory to be associated with a workspace.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WorkspaceList

public WorkspaceList()

Method Detail

allocate

public WorkspaceList.Lease allocate(@Nonnull
                                    FilePath base)
                             throws InterruptedException

Allocates a workspace by adding some variation to the given base to make it unique.

This method doesn't block prolonged amount of time. Whenever a desired workspace is in use, the unique variation is added.

Throws:

InterruptedException

allocate

public WorkspaceList.Lease allocate(@Nonnull
                                    FilePath base,
                                    Object context)
                             throws InterruptedException

See allocate(FilePath)

Parameters:

context - Threads that share the same context can re-acquire the same lock (which will just increment the lock count.) This allows related executors to share the same workspace.

Throws:

InterruptedException

record

public WorkspaceList.Lease record(@Nonnull
                                  FilePath p)

Just record that this workspace is being used, without paying any attention to the synchronization support.

acquire

public WorkspaceList.Lease acquire(@Nonnull
                                   FilePath p)
                            throws InterruptedException

Acquires the given workspace. If necessary, this method blocks until it's made available.

Returns:

The same FilePath as given to this method.

Throws:

InterruptedException

acquire

public WorkspaceList.Lease acquire(@Nonnull
                                   FilePath p,
                                   boolean quick)
                            throws InterruptedException

See acquire(FilePath)

Parameters:

quick - If true, indicates that the acquired workspace will be returned quickly. This makes other calls to allocate(FilePath) to wait for the release of this workspace.

Throws:

InterruptedException

acquire

public WorkspaceList.Lease acquire(@Nonnull
                                   FilePath p,
                                   boolean quick,
                                   Object context)
                            throws InterruptedException

See acquire(FilePath,boolean)

Parameters:

context - Threads that share the same context can re-acquire the same lock (which will just increment the lock count.) This allows related executors to share the same workspace.

Throws:

InterruptedException

tempDir

@CheckForNull
public static FilePath tempDir(FilePath ws)

Locates a conventional temporary directory to be associated with a workspace.

This directory is suitable for temporary files to be deleted later in the course of a build, or caches and local repositories which should persist across builds done in the same workspace. (If multiple workspaces are present for a single job built concurrently, via allocate(FilePath), each will get its own temporary directory.)

It may also be used for security-sensitive files which DirectoryBrowserSupport ought not serve, acknowledging that these will be readable by builds of other jobs done on the same node.

Each plugin using this directory is responsible for specifying sufficiently unique subdirectory/file names. FilePath.createTempFile(java.lang.String, java.lang.String) may be used for this purpose if desired.

The resulting directory may not exist; you may call FilePath.mkdirs() on it if you need it to. It may be deleted alongside the workspace itself during cleanup actions.

Parameters:

ws - a directory such as a build workspace

Returns:

a sibling directory, for example …/something@tmp for …/something, or null if FilePath.getParent() is null

Since:

1.652