com.facebook.soloader

Class SoSource

java.lang.Object

com.facebook.soloader.SoSource

Direct Known Subclasses:

DirectorySoSource, NoopSoSource

public abstract class SoSource
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	LOAD_FLAG_ALLOW_IMPLICIT_PROVISION Allow loadLibrary to implicitly provide the library instead of actually loading it.
static int	LOAD_RESULT_IMPLICITLY_PROVIDED This SoSource did not load the library, but verified that the system loader will load it if some other library depends on it.
static int	LOAD_RESULT_LOADED This SoSource loaded the given library.
static int	LOAD_RESULT_NOT_FOUND This SoSource doesn't know how to provide the given library.

Constructor Summary

Constructors

Constructor and Description
SoSource()

Method Summary

Methods

Modifier and Type	Method and Description
abstract int	loadLibrary(java.lang.String soName, int LoadFlags) Load a shared library library into this process.
abstract java.io.File	unpackLibrary(java.lang.String soName) Ensure that a shared library exists on disk somewhere.

Methods inherited from class java.lang.Object

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

Field Detail

LOAD_RESULT_NOT_FOUND

public static final int LOAD_RESULT_NOT_FOUND

This SoSource doesn't know how to provide the given library.

See Also:

Constant Field Values

LOAD_RESULT_LOADED

public static final int LOAD_RESULT_LOADED

This SoSource loaded the given library.

See Also:

Constant Field Values

LOAD_RESULT_IMPLICITLY_PROVIDED

public static final int LOAD_RESULT_IMPLICITLY_PROVIDED

This SoSource did not load the library, but verified that the system loader will load it if some other library depends on it. Returned only if LOAD_FLAG_ALLOW_IMPLICIT_PROVISION is provided to loadLibrary.

See Also:

Constant Field Values

LOAD_FLAG_ALLOW_IMPLICIT_PROVISION

public static final int LOAD_FLAG_ALLOW_IMPLICIT_PROVISION

Allow loadLibrary to implicitly provide the library instead of actually loading it.

See Also:

Constant Field Values

Constructor Detail

SoSource

public SoSource()

Method Detail

loadLibrary

public abstract int loadLibrary(java.lang.String soName,
              int LoadFlags)
                         throws java.io.IOException

Load a shared library library into this process. This routine is independent of loadLibrary(java.lang.String, int).

Parameters:

soName - Name of library to load

loadFlags - Zero or more of the LOAD_FLAG_XXX constants.

Returns:

One of the LOAD_RESULT_XXX constants.

Throws:

java.io.IOException

unpackLibrary

public abstract java.io.File unpackLibrary(java.lang.String soName)
                                    throws java.io.IOException

Ensure that a shared library exists on disk somewhere. This routine is independent of loadLibrary(java.lang.String, int).

Parameters:

soName - Name of library to load

Returns:

File if library found; null if not.

Throws:

java.io.IOException