Examples of java.nio.channels.SelectableChannel.configureBlocking()

Class java.nio.channels.SelectableChannel

Examples of java.nio.channels.SelectableChannel.configureBlocking()

java.nio.channels.SelectableChannel.configureBlocking()
Adjusts this channel's blocking mode.
If this channel is registered with one or more selectors then an attempt to place it into blocking mode will cause an {@link IllegalBlockingModeException} to be thrown.
This method may be invoked at any time. The new blocking mode will only affect I/O operations that are initiated after this method returns. For some implementations this may require blocking until all pending I/O operations are complete.
If this method is invoked while another invocation of this method or of the {@link #register(Selector,int) register} method is in progressthen it will first block until the other operation is complete.
@param block If true then this channel will be placed inblocking mode; if false then it will be placed non-blocking mode @return This selectable channel @throws ClosedChannelException If this channel is closed @throws IllegalBlockingModeException If block is true and this channel is registered with one or more selectors @throws IOException If an I/O error occurs


        synchronized (selectable.blockingLock()) {
            boolean oldBlocking = selectable.isBlocking();


            try {
                selectable.configureBlocking(false);


                try {
                    UnixSocketChannel socketChannel = ((UnixServerSocketChannel) selectable).accept();


                    RubyUNIXSocket sock = (RubyUNIXSocket)(Helpers.invoke(context, runtime.getClass("UNIXSocket"), "allocate"));

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                    sock.init_sock(context.runtime, socketChannel, "");


                    return sock;


                } finally {
                    selectable.configureBlocking(oldBlocking);
                }


            } catch (IOException ioe) {
                if (ioe.getMessage().equals("accept failed: Resource temporarily unavailable")) {
                    throw runtime.newErrnoEAGAINReadableError("accept");

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        SelectableChannel selectable = (SelectableChannel)channel;
        synchronized (selectable.blockingLock()) {
            boolean oldBlocking = selectable.isBlocking();
            try {
                selectable.configureBlocking(false);


                try {
                    doConnect(context, channel, addr);


                } finally {

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                try {
                    doConnect(context, channel, addr);


                } finally {
                    selectable.configureBlocking(oldBlocking);
                }


            } catch(ClosedChannelException e) {
                throw context.runtime.newErrnoECONNREFUSEDError();

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        synchronized (selectable.blockingLock()) {
            boolean oldBlocking = selectable.isBlocking();


            try {
                selectable.configureBlocking(false);


                try {
                    return doReceive(context, length);
                } finally {
                    selectable.configureBlocking(oldBlocking);

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                selectable.configureBlocking(false);


                try {
                    return doReceive(context, length);
                } finally {
                    selectable.configureBlocking(oldBlocking);
                }


            } catch(IOException e) {
                throw runtime.newIOErrorFromException(e);
            }

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            SelectableChannel selectableChannel = (SelectableChannel)descriptor.getChannel();
            synchronized (selectableChannel.blockingLock()) {
                boolean oldBlocking = selectableChannel.isBlocking();
                try {
                    if (oldBlocking != block) {
                        selectableChannel.configureBlocking(block);
                    }
                    nWritten = descriptor.write(buffer);
                } finally {
                    if (oldBlocking != block) {
                        selectableChannel.configureBlocking(oldBlocking);

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                        selectableChannel.configureBlocking(block);
                    }
                    nWritten = descriptor.write(buffer);
                } finally {
                    if (oldBlocking != block) {
                        selectableChannel.configureBlocking(oldBlocking);
                    }
                }
            }
        } else {
            nWritten = descriptor.write(buffer);

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            java.nio.channels.Selector sel = SelectorFactory.openWithRetryFrom(null, ((SelectableChannel) descriptor.getChannel()).provider());
            SelectableChannel selchan = (SelectableChannel)descriptor.getChannel();
            synchronized (selchan.blockingLock()) {
                boolean is_block = selchan.isBlocking();
                try {
                    selchan.configureBlocking(false);
                    selchan.register(sel, java.nio.channels.SelectionKey.OP_READ);
                    ready_stat = sel.selectNow();
                    sel.close();
                } catch (Throwable ex) {
                } finally {

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                        try {
                            sel.close();
                        } catch (Exception e) {
                        }
                    }
                    selchan.configureBlocking(is_block);
                }
            }
            return ready_stat;
        } else {
            return newInputStream().available();

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