hudson.util.jna

Interface GNUCLibrary

All Superinterfaces:

com.sun.jna.Library

public interface GNUCLibrary
extends com.sun.jna.Library

GNU C library.

Not available on all platforms (such as Linux/PPC, IBM mainframe, etc.), so the caller should recover gracefully in case of LinkageError. See HUDSON-4820.

Consider deprecating all methods present also in POSIX (as obtained by PosixAPI.jnr()).

Author:

Kohsuke Kawaguchi

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	F_GETFD
static int	F_SETFD
static int	FD_CLOEXEC
static GNUCLibrary	LIBC

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

Modifier and Type	Method and Description
int	chdir(String dir)
int	chmod(String fileName, int i)
int	chown(String fileName, int uid, int gid)
int	close(int fd)
int	dup(int old)
int	dup2(int old, int _new)
int	execv(String path, com.sun.jna.StringArray args)
int	execvp(String file, com.sun.jna.StringArray args)
int	fcntl(int fd, int command)
int	fcntl(int fd, int command, int flags)
int	fork()
int	getdtablesize()
int	getegid()
int	geteuid()
int	getpid()
int	getppid()
org.jvnet.libpam.impl.CLibrary.passwd	getpwuid(int uid)
int	kill(int pid, int signum)
int	open(String pathname, int flags)
void	perror(String msg)
long	pread(int fd, com.sun.jna.Memory buffer, com.sun.jna.NativeLong size, com.sun.jna.NativeLong offset)
int	readlink(String filename, com.sun.jna.Memory buffer, com.sun.jna.NativeLong size) Read a symlink.
int	rename(String oldname, String newname)
int	setenv(String name, String value, int replace)
int	setsid()
String	strerror(int errno)
int	symlink(String oldname, String newname) Creates a symlink.
int	sysctl(int[] mib, int nameLen, com.sun.jna.Pointer oldp, com.sun.jna.ptr.IntByReference oldlenp, com.sun.jna.Pointer newp, com.sun.jna.ptr.IntByReference newlen)
int	sysctlbyname(String name, com.sun.jna.Pointer oldp, com.sun.jna.ptr.IntByReference oldlenp, com.sun.jna.Pointer newp, com.sun.jna.ptr.IntByReference newlen)
int	sysctlnametomib(String name, com.sun.jna.Pointer mibp, com.sun.jna.ptr.IntByReference size)
int	umask(int mask)
int	unsetenv(String name)

Field Detail

F_GETFD

static final int F_GETFD

See Also:

Constant Field Values

F_SETFD

static final int F_SETFD

See Also:

Constant Field Values

FD_CLOEXEC

static final int FD_CLOEXEC

See Also:

Constant Field Values

LIBC

static final GNUCLibrary LIBC

Method Detail

fork

int fork()

kill

int kill(int pid,
         int signum)

setsid

int setsid()

umask

int umask(int mask)

getpid

int getpid()

geteuid

int geteuid()

getegid

int getegid()

getppid

int getppid()

chdir

int chdir(String dir)

getdtablesize

int getdtablesize()

execv

int execv(String path,
          com.sun.jna.StringArray args)

execvp

int execvp(String file,
           com.sun.jna.StringArray args)

setenv

int setenv(String name,
           String value,
           int replace)

unsetenv

int unsetenv(String name)

perror

void perror(String msg)

strerror

String strerror(int errno)

getpwuid

org.jvnet.libpam.impl.CLibrary.passwd getpwuid(int uid)

fcntl

int fcntl(int fd,
          int command)

fcntl

int fcntl(int fd,
          int command,
          int flags)

chown

int chown(String fileName,
          int uid,
          int gid)

chmod

int chmod(String fileName,
          int i)

open

int open(String pathname,
         int flags)
  throws com.sun.jna.LastErrorException

Throws:

com.sun.jna.LastErrorException

dup

int dup(int old)

dup2

int dup2(int old,
         int _new)

pread

long pread(int fd,
           com.sun.jna.Memory buffer,
           com.sun.jna.NativeLong size,
           com.sun.jna.NativeLong offset)
    throws com.sun.jna.LastErrorException

Throws:

com.sun.jna.LastErrorException

close

int close(int fd)

rename

int rename(String oldname,
           String newname)

sysctlbyname

int sysctlbyname(String name,
                 com.sun.jna.Pointer oldp,
                 com.sun.jna.ptr.IntByReference oldlenp,
                 com.sun.jna.Pointer newp,
                 com.sun.jna.ptr.IntByReference newlen)

sysctl

int sysctl(int[] mib,
           int nameLen,
           com.sun.jna.Pointer oldp,
           com.sun.jna.ptr.IntByReference oldlenp,
           com.sun.jna.Pointer newp,
           com.sun.jna.ptr.IntByReference newlen)

sysctlnametomib

int sysctlnametomib(String name,
                    com.sun.jna.Pointer mibp,
                    com.sun.jna.ptr.IntByReference size)

symlink

int symlink(String oldname,
            String newname)

Creates a symlink. See http://linux.die.net/man/3/symlink

readlink

int readlink(String filename,
             com.sun.jna.Memory buffer,
             com.sun.jna.NativeLong size)

Read a symlink. The name will be copied into the specified memory, and returns the number of bytes copied. The string is not null-terminated.

Returns:

if the return value equals size, the caller needs to retry with a bigger buffer. If -1, error.