Package org.apache.cassandra.utils

Interface NativeLibraryWrapper

All Known Implementing Classes:

NativeLibraryDarwin, NativeLibraryLinux

public interface NativeLibraryWrapper

An interface to implement for using OS specific native methods.

See Also:

• NativeLibrary

Method Summary

Modifier and Type	Method	Description
int	callClose(int fd)
int	callFcntl(int fd, int command, long flags)
int	callFsync(int fd)
long	callGetpid()
int	callMlockall(int flags)
int	callMunlockall()
int	callOpen(String path, int flags)
int	callPosixFadvise(int fd, long offset, int len, int flag)
com.sun.jna.Pointer	callStrerror(int errnum)
boolean	isAvailable()	Checks if the library has been successfully linked.

Method Details

isAvailable

boolean isAvailable()

Checks if the library has been successfully linked.

Returns:

true if the library has been successfully linked, false otherwise.

callMlockall

int callMlockall(int flags)
          throws UnsatisfiedLinkError,
RuntimeException

Throws:

UnsatisfiedLinkError

RuntimeException

callMunlockall

int callMunlockall()
            throws UnsatisfiedLinkError,
RuntimeException

Throws:

UnsatisfiedLinkError

RuntimeException

callFcntl

int callFcntl(int fd,
 int command,
 long flags)
       throws UnsatisfiedLinkError,
RuntimeException

Throws:

UnsatisfiedLinkError

RuntimeException

callPosixFadvise

int callPosixFadvise(int fd,
 long offset,
 int len,
 int flag)
              throws UnsatisfiedLinkError,
RuntimeException

Throws:

UnsatisfiedLinkError

RuntimeException

callOpen

int callOpen(String path,
 int flags)
      throws UnsatisfiedLinkError,
RuntimeException

Throws:

UnsatisfiedLinkError

RuntimeException

callFsync

int callFsync(int fd)
       throws UnsatisfiedLinkError,
RuntimeException

Throws:

UnsatisfiedLinkError

RuntimeException

callClose

int callClose(int fd)
       throws UnsatisfiedLinkError,
RuntimeException

Throws:

UnsatisfiedLinkError

RuntimeException

callStrerror

com.sun.jna.Pointer callStrerror(int errnum)
                          throws UnsatisfiedLinkError,
RuntimeException

Throws:

UnsatisfiedLinkError

RuntimeException

callGetpid

long callGetpid()
         throws UnsatisfiedLinkError,
RuntimeException

Throws:

UnsatisfiedLinkError

RuntimeException