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improvements to jui, use nonblocking i/o in stdout thread

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This commit is contained in:
krakjoe 2013-11-30 00:16:24 +00:00
parent 53eb91d05e
commit af3d792c78
2 changed files with 87 additions and 46 deletions
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133
tutorials/java/src/phpdbg/ui/DebugSocket.java
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@ -4,7 +4,17 @@ package phpdbg.ui;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
import static java.nio.channels.SelectionKey.OP_READ;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.nio.channels.spi.SelectorProvider;
import java.util.Iterator;
import java.util.Set;
import phpdbg.ui.JConsole.MessageType;
/*
@ -17,7 +27,9 @@ import phpdbg.ui.JConsole.MessageType;
* Manage input and output data
* @author krakjoe
*/
public class DebugSocket extends Socket implements Runnable {
public class DebugSocket implements Runnable {
private final String host;
private final Integer port;
private final Boolean reader;
private final JConsole main;
private final Thread thread;
@ -26,8 +38,8 @@ public class DebugSocket extends Socket implements Runnable {
private volatile Boolean started;
public DebugSocket(final String host, final Integer port, final JConsole main, Boolean reader) throws IOException {
super(host, port);
this.host = host;
this.port = port;
this.main = main;
this.reader = reader;
this.quit = false;
@ -38,6 +50,7 @@ public class DebugSocket extends Socket implements Runnable {
public void start() {
synchronized(this) {
if (!started) {
quit = false;
started = true;
thread.start();
}
@ -60,59 +73,87 @@ public class DebugSocket extends Socket implements Runnable {
}
}
synchronized(this) {
do {
if (reader) {
if (reader) {
/* The reader thread part will wait() until there is input */
Socket socket = new Socket(this.host, this.port);
try {
do {
String command;
OutputStream output = getOutputStream();
wait();
command = main.getInputField().getText();
/* send command to stdin socket */
if (command != null) {
if (main.isEchoing()) {
main.getOutputField().appendANSI("remote> ");
main.getOutputField().appendANSI(command);
main.getOutputField().appendANSI("\n");
OutputStream output = socket.getOutputStream();
synchronized(this) {
wait();
if (!quit) {
command = main.getInputField().getText();
/* send command to stdin socket */
if (command != null) {
if (main.isEchoing()) {
main.getOutputField().appendANSI("remote> ");
main.getOutputField().appendANSI(command);
main.getOutputField().appendANSI("\n");
}
output.write(
command.getBytes());
output.write("\n".getBytes());
output.flush();
}
main.getInputField().setText(null);
}
output.write(
command.getBytes());
output.write("\n".getBytes());
output.flush();
}
main.getInputField().setText(null);
} else {
InputStream input = getInputStream();
/* get data from stdout socket */
byte[] bytes = new byte[1];
do {
if (input.available() == 0) {
wait(400);
continue;
}
if (input.read(bytes, 0, 1) > -1) {
main.getOutputField()
.appendANSI(new String(bytes));
}
} while (!quit);
} while (!quit);
} catch (IOException ex) {
if (!quit) {
main.messageBox(ex.getMessage(), MessageType.ERROR);
}
} while(!quit);
}
} else {
/*
* The writer thread will use non-blocking i/o consuming
* resources only when there is data to read
*/
Selector selector = Selector.open();
SocketChannel channel = SocketChannel.open();
channel.connect(
new InetSocketAddress(this.host, this.port));
channel.configureBlocking(false);
channel.register(selector, OP_READ);
while (!quit) {
selector.select();
Iterator<SelectionKey> iter = selector.selectedKeys().iterator();
while (iter.hasNext()) {
if (!quit) {
SocketChannel ready = (SocketChannel) (iter.next().channel());
ByteBuffer bytes = ByteBuffer.allocate(128);
if (ready != null) {
if (ready.read(bytes) != -1) {
bytes.flip();
main.getOutputField()
.appendANSI(new String(bytes.array()));
}
}
iter.remove();
}
}
}
}
} catch (IOException | InterruptedException ex) {
if (!quit) {
main.messageBox(ex.getMessage(), MessageType.ERROR);
}
} finally {
try {
close();
} catch (IOException ex) { /* naughty me */ } finally {
synchronized(main) {
if (main.isConnected()) {
main.setConnected(false);
}
}
synchronized(main) {
if (main.isConnected()) {
main.setConnected(false);
}
}
}
}