com.oracle.svm.core.posix

Class PosixUtils

java.lang.Object

com.oracle.svm.core.posix.PosixUtils

public class PosixUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
PosixUtils()

Method Summary

Modifier and Type	Method and Description
static void	checkStatusIs0(int status, String message)
static String	dlerror()
static org.graalvm.word.PointerBase	dlopen(String file, int mode)
static <T extends org.graalvm.word.PointerBase> T	dlsym(org.graalvm.word.PointerBase handle, String name)
static String	errorString(int errno, String defaultMsg) Return the error string for the given error number, or a default message.
static boolean	flush(FileDescriptor descriptor)
static int	getFD(FileDescriptor descriptor)
static int	getpid()
static int	getpid(Process process)
static String	lastErrorString(String defaultMsg) Return the error string for the last error, or a default message.
static IOException	newIOExceptionWithLastError(String defaultMsg)
static int	readBytes(int fd, org.graalvm.nativeimage.c.type.CCharPointer buffer, int bufferLen, int readOffset)
static boolean	readEntirely(int fd, org.graalvm.nativeimage.c.type.CCharPointer buffer, int bufferLen)
static void	setFD(FileDescriptor descriptor, int fd)
static int	waitForProcessExit(int ppid)
static boolean	writeBytes(FileDescriptor descriptor, org.graalvm.nativeimage.c.type.CCharPointer bytes, org.graalvm.word.UnsignedWord length) Low-level output of bytes already in native memory.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PosixUtils

public PosixUtils()

Method Detail

getFD

public static int getFD(FileDescriptor descriptor)

setFD

public static void setFD(FileDescriptor descriptor,
                         int fd)

lastErrorString

public static String lastErrorString(String defaultMsg)

Return the error string for the last error, or a default message.

newIOExceptionWithLastError

public static IOException newIOExceptionWithLastError(String defaultMsg)

errorString

public static String errorString(int errno,
                                 String defaultMsg)

Return the error string for the given error number, or a default message.

getpid

public static int getpid()

getpid

public static int getpid(Process process)

waitForProcessExit

public static int waitForProcessExit(int ppid)

writeBytes

public static boolean writeBytes(FileDescriptor descriptor,
                                 org.graalvm.nativeimage.c.type.CCharPointer bytes,
                                 org.graalvm.word.UnsignedWord length)

Low-level output of bytes already in native memory. This method is allocation free, so that it can be used, e.g., in low-level logging routines.

flush

public static boolean flush(FileDescriptor descriptor)

dlopen

public static org.graalvm.word.PointerBase dlopen(String file,
                                                  int mode)

dlsym

public static <T extends org.graalvm.word.PointerBase> T dlsym(org.graalvm.word.PointerBase handle,
                                                               String name)

dlerror

public static String dlerror()

checkStatusIs0

public static void checkStatusIs0(int status,
                                  String message)

readEntirely

public static boolean readEntirely(int fd,
                                   org.graalvm.nativeimage.c.type.CCharPointer buffer,
                                   int bufferLen)

readBytes

public static int readBytes(int fd,
                            org.graalvm.nativeimage.c.type.CCharPointer buffer,
                            int bufferLen,
                            int readOffset)