Package com.facebook.soloader

Class BackupSoSource

java.lang.Object

com.facebook.soloader.SoSource

com.facebook.soloader.DirectorySoSource

com.facebook.soloader.UnpackingSoSource

com.facebook.soloader.BackupSoSource

All Implemented Interfaces:

AsyncInitSoSource, RecoverableSoSource

public class BackupSoSource
extends UnpackingSoSource
implements RecoverableSoSource

SoSource that extracts zipped libraries from an APK to the filesystem. This is a workaround for a known OS bug where the unpacking of non-asset zipped libraries at install time results in corrupted libraries (e.g. bad elf magic, or truncated files).

Nested Class Summary

Nested classes/interfaces inherited from class com.facebook.soloader.UnpackingSoSource

UnpackingSoSource.Dso

Field Summary

Fields inherited from class com.facebook.soloader.DirectorySoSource

ON_LD_LIBRARY_PATH, RESOLVE_DEPENDENCIES

Fields inherited from class com.facebook.soloader.SoSource

LOAD_FLAG_ALLOW_IMPLICIT_PROVISION, LOAD_FLAG_ALLOW_SOURCE_CHANGE, LOAD_FLAG_MIN_CUSTOM_FLAG, LOAD_RESULT_IMPLICITLY_PROVIDED, LOAD_RESULT_LOADED, LOAD_RESULT_NOT_FOUND, PREPARE_FLAG_ALLOW_ASYNC_INIT, PREPARE_FLAG_DISABLE_FS_SYNC_JOB, PREPARE_FLAG_FORCE_REFRESH, PREPARE_FLAG_SKIP_BACKUP_SO_SOURCE

Constructor Summary

Constructors

Constructor	Description
BackupSoSource(android.content.Context context, String name)
BackupSoSource(android.content.Context context, String name, boolean resolveDependencies)

Method Summary

Modifier and Type	Method	Description
UnpackingSoSource.Dso[]	getDsosBaseApk()
String	getName()
int	loadLibrary(String soName, int loadFlags, android.os.StrictMode.ThreadPolicy threadPolicy)	Load a shared library library into this process.
boolean	peekAndPrepareSoSource(String soName, int prepareFlags)
void	prepare(int flags)	Verify or refresh the state of the shared library store.
SoSource	recover(android.content.Context context)
String	toString()	Return the class name of the actual instance.

Methods inherited from class com.facebook.soloader.UnpackingSoSource

getLibraryPath, getSoSourceAbis, getSoStorePath, setSoSourceAbis, waitUntilInitCompleted

Methods inherited from class com.facebook.soloader.DirectorySoSource

addToLdLibraryPath, getLibraryDependencies, getSoFileByName, setExplicitDependencyResolution, unpackLibrary

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

BackupSoSource

public BackupSoSource(android.content.Context context,
 String name,
 boolean resolveDependencies)

BackupSoSource

public BackupSoSource(android.content.Context context,
 String name)

Method Details

getName

public String getName()

Overrides:

getName in class DirectorySoSource

Returns:

the name of this SoSource for logging purposes

loadLibrary

public int loadLibrary(String soName,
 int loadFlags,
 android.os.StrictMode.ThreadPolicy threadPolicy)
                throws IOException

Description copied from class: SoSource

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

Overrides:

loadLibrary in class DirectorySoSource

Parameters:

soName - Name of library to load

loadFlags - Zero or more of the LOAD_FLAG_XXX constants.

threadPolicy - Strict Mode policy

Returns:

One of the LOAD_RESULT_XXX constants.

Throws:

IOException - IOException

prepare

public void prepare(int flags)
             throws IOException

Description copied from class: UnpackingSoSource

Verify or refresh the state of the shared library store.

Overrides:

prepare in class UnpackingSoSource

Throws:

IOException

peekAndPrepareSoSource

public boolean peekAndPrepareSoSource(String soName,
 int prepareFlags)
                               throws IOException

Throws:

IOException

getDsosBaseApk

public UnpackingSoSource.Dso[] getDsosBaseApk()
                                       throws IOException

Overrides:

getDsosBaseApk in class UnpackingSoSource

Throws:

IOException

recover

public SoSource recover(android.content.Context context)

Specified by:

recover in interface RecoverableSoSource

toString

public String toString()

Description copied from class: SoSource

Return the class name of the actual instance. Useful for debugging.

Overrides:

toString in class DirectorySoSource

Returns:

the instance class name