com.orientechnologies.nio

Interface MemoryLockerLinux

All Superinterfaces:

com.sun.jna.Library

public interface MemoryLockerLinux
extends com.sun.jna.Library

Author:

Artem Loginov (logart) logart2007@gmail.com

Nested Class Summary

Nested classes/interfaces inherited from interface com.sun.jna.Library

com.sun.jna.Library.Handler

Field Summary

Fields

Modifier and Type	Field and Description
static int	EAGAIN
static int	EINVAL
static int	ENOMEM
static int	ENOSYS
static int	EPERM
static MemoryLockerLinux	INSTANCE
static int	LOCK_ALL_MEMORY_DURING_APPLICATION_LIFE
static int	LOCK_CURRENT_MEMORY

Fields inherited from interface com.sun.jna.Library

OPTION_ALLOW_OBJECTS, OPTION_CALLING_CONVENTION, OPTION_CLASSLOADER, OPTION_FUNCTION_MAPPER, OPTION_INVOCATION_MAPPER, OPTION_OPEN_FLAGS, OPTION_STRING_ENCODING, OPTION_STRUCTURE_ALIGNMENT, OPTION_TYPE_MAPPER

Method Summary

Methods

Modifier and Type	Method and Description
int	mlockall(int flags) This method locks all memory under *nix operating system using kernel function mlockall. details of this function you can find on http://www.kernel.org/doc/man-pages/online/pages/man2/mlock.2.html

Field Detail

EPERM

static final int EPERM

See Also:

Constant Field Values

EAGAIN

static final int EAGAIN

See Also:

Constant Field Values

ENOMEM

static final int ENOMEM

See Also:

Constant Field Values

EINVAL

static final int EINVAL

See Also:

Constant Field Values

ENOSYS

static final int ENOSYS

See Also:

Constant Field Values

LOCK_CURRENT_MEMORY

static final int LOCK_CURRENT_MEMORY

See Also:

Constant Field Values

LOCK_ALL_MEMORY_DURING_APPLICATION_LIFE

static final int LOCK_ALL_MEMORY_DURING_APPLICATION_LIFE

See Also:

Constant Field Values

INSTANCE

static final MemoryLockerLinux INSTANCE

Method Detail

mlockall

int mlockall(int flags)

This method locks all memory under *nix operating system using kernel function mlockall. details of this function you can find on http://www.kernel.org/doc/man-pages/online/pages/man2/mlock.2.html

Parameters:

flags - determines lock memory on startup or during life of application.

Returns:

Upon successful completion, the mlockall() function returns a value of zero. Otherwise, no additional memory is locked, and the function returns a value of -1 and sets errno to indicate the error. The effect of failure of mlockall() on previously existing locks in the address space is unspecified. If it is supported by the implementation, the munlockall() function always returns a value of zero. Otherwise, the function returns a value of -1 and sets errno to indicate the error.