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 and 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(java.lang.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 Detail

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 java.lang.UnsatisfiedLinkError,
                 java.lang.RuntimeException

Throws:

java.lang.UnsatisfiedLinkError

java.lang.RuntimeException

callMunlockall

int callMunlockall()
            throws java.lang.UnsatisfiedLinkError,
                   java.lang.RuntimeException

Throws:

java.lang.UnsatisfiedLinkError

java.lang.RuntimeException

callFcntl

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

Throws:

java.lang.UnsatisfiedLinkError

java.lang.RuntimeException

callPosixFadvise

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

Throws:

java.lang.UnsatisfiedLinkError

java.lang.RuntimeException

callOpen

int callOpen(java.lang.String path,
             int flags)
      throws java.lang.UnsatisfiedLinkError,
             java.lang.RuntimeException

Throws:

java.lang.UnsatisfiedLinkError

java.lang.RuntimeException

callFsync

int callFsync(int fd)
       throws java.lang.UnsatisfiedLinkError,
              java.lang.RuntimeException

Throws:

java.lang.UnsatisfiedLinkError

java.lang.RuntimeException

callClose

int callClose(int fd)
       throws java.lang.UnsatisfiedLinkError,
              java.lang.RuntimeException

Throws:

java.lang.UnsatisfiedLinkError

java.lang.RuntimeException

callStrerror

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

Throws:

java.lang.UnsatisfiedLinkError

java.lang.RuntimeException

callGetpid

long callGetpid()
         throws java.lang.UnsatisfiedLinkError,
                java.lang.RuntimeException

Throws:

java.lang.UnsatisfiedLinkError

java.lang.RuntimeException