com.oracle.svm.core.posix.linux

Class LinuxJavaNetCloseImpl

java.lang.Object

com.oracle.svm.core.posix.PosixJavaNetClose

com.oracle.svm.core.posix.linux.LinuxJavaNetCloseImpl

public class LinuxJavaNetCloseImpl
extends PosixJavaNetClose

Translation of the mechanisms in /jdk8u-dev/jdk/src/solaris/native/java/net/linux_close.c that implements interruption of blocking operations. The mechanism is not a direct translation of the C functions, which maintain lists of pthreads, and file descriptors, etc. Rather the mechanism is implemented in Java using Java threads and Thread.interrupt. Also in this class are more traditional translations of the C functions that do blocking operations. Where the implementations are identical between platforms, the shared code lives in PosixJavaNetClose.

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.svm.core.posix.PosixJavaNetClose

PosixJavaNetClose.FdEntry, PosixJavaNetClose.ThreadEntry

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LinuxJavaNetCloseImpl()

Method Summary

Modifier and Type	Method and Description
protected int	closefd(int fd1, int fd2) { @formatter:off 171 * Close or dup2 a file descriptor ensuring that all threads blocked on 172 * the file descriptor are notified via a wakeup signal.
int	NET_Accept(int s, Socket.sockaddr addr, org.graalvm.nativeimage.c.type.CIntPointer addrlen)
int	NET_Timeout0(int s, long timeoutArg, long currentTime)

Methods inherited from class com.oracle.svm.core.posix.PosixJavaNetClose

BLOCKING_IO_RETURN_INT, endOp, getFdEntry, interruptThread, NET_Connect, NET_Dup2, NET_NonBlockingRead, NET_Poll, NET_Read, NET_ReadV, NET_RecvFrom, NET_Send, NET_SendTo, NET_SocketClose, NET_WriteV, startOp

Methods inherited from class java.lang.Object

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

Constructor Detail

LinuxJavaNetCloseImpl

protected LinuxJavaNetCloseImpl()

Method Detail

closefd

protected int closefd(int fd1,
                      int fd2)

{ @formatter:off 171 * Close or dup2 a file descriptor ensuring that all threads blocked on 172 * the file descriptor are notified via a wakeup signal. 173 * 174 * fd1 < 0 => close(fd2) 175 * fd1 >= 0 => dup2(fd1, fd2) 176 * 177 * Returns -1 with errno set if operation fails. } @formatter:on

Specified by:

closefd in class PosixJavaNetClose

NET_Accept

public int NET_Accept(int s,
                      Socket.sockaddr addr,
                      org.graalvm.nativeimage.c.type.CIntPointer addrlen)

Specified by:

NET_Accept in class PosixJavaNetClose

NET_Timeout0

public int NET_Timeout0(int s,
                        long timeoutArg,
                        long currentTime)

Specified by:

NET_Timeout0 in class PosixJavaNetClose