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8241305: Add protocol specific factory creation methods to SocketChannel and ServerSocketChannel

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Reviewed-by: alanb, chegar, dfuchs
This commit is contained in:
Michael McMahon 2020-05-17 21:15:33 +01:00
parent 42bad03de8
commit 0f7aeed416
12 changed files with 1044 additions and 33 deletions
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43
src/java.base/share/classes/sun/nio/ch/ServerSocketChannelImpl.java
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@ -28,10 +28,12 @@ package sun.nio.ch;
import java.io.FileDescriptor;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.ProtocolFamily;
import java.net.ServerSocket;
import java.net.SocketAddress;
import java.net.SocketOption;
import java.net.SocketTimeoutException;
import java.net.StandardProtocolFamily;
import java.net.StandardSocketOptions;
import java.nio.channels.AlreadyBoundException;
import java.nio.channels.AsynchronousCloseException;
@ -62,6 +64,9 @@ class ServerSocketChannelImpl
// Used to make native close and configure calls
private static final NativeDispatcher nd = new SocketDispatcher();
// The protocol family of the socket
private final ProtocolFamily family;
// Our file descriptor
private final FileDescriptor fd;
private final int fdVal;
@ -95,10 +100,26 @@ class ServerSocketChannelImpl
// -- End of fields protected by stateLock
ServerSocketChannelImpl(SelectorProvider sp) {
this(sp, Net.isIPv6Available()
? StandardProtocolFamily.INET6
: StandardProtocolFamily.INET);
}
ServerSocketChannelImpl(SelectorProvider sp, ProtocolFamily family) {
super(sp);
this.fd = Net.serverSocket(true);
Objects.requireNonNull(family, "'family' is null");
if ((family != StandardProtocolFamily.INET) &&
(family != StandardProtocolFamily.INET6)) {
throw new UnsupportedOperationException("Protocol family not supported");
}
if (family == StandardProtocolFamily.INET6 && !Net.isIPv6Available()) {
throw new UnsupportedOperationException("IPv6 not available");
}
this.family = family;
this.fd = Net.serverSocket(family, true);
this.fdVal = IOUtil.fdVal(fd);
}
@ -106,8 +127,13 @@ class ServerSocketChannelImpl
throws IOException
{
super(sp);
this.family = Net.isIPv6Available()
? StandardProtocolFamily.INET6
: StandardProtocolFamily.INET;
this.fd = fd;
this.fdVal = IOUtil.fdVal(fd);
if (bound) {
synchronized (stateLock) {
localAddress = Net.localAddress(fd);
@ -210,14 +236,17 @@ class ServerSocketChannelImpl
ensureOpen();
if (localAddress != null)
throw new AlreadyBoundException();
InetSocketAddress isa = (local == null)
? new InetSocketAddress(0)
: Net.checkAddress(local);
InetSocketAddress isa;
if (local == null) {
isa = new InetSocketAddress(Net.anyLocalAddress(family), 0);
} else {
isa = Net.checkAddress(local, family);
}
SecurityManager sm = System.getSecurityManager();
if (sm != null)
sm.checkListen(isa.getPort());
NetHooks.beforeTcpBind(fd, isa.getAddress(), isa.getPort());
Net.bind(fd, isa.getAddress(), isa.getPort());
Net.bind(family, fd, isa.getAddress(), isa.getPort());
Net.listen(fd, backlog < 1 ? 50 : backlog);
localAddress = Net.localAddress(fd);
}
@ -358,7 +387,7 @@ class ServerSocketChannelImpl
if (sm != null) {
sm.checkAccept(isa.getAddress().getHostAddress(), isa.getPort());
}
return new SocketChannelImpl(provider(), newfd, isa);
return new SocketChannelImpl(provider(), family, newfd, isa);
} catch (Exception e) {
nd.close(newfd);
throw e;