X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altoslib%2FAltosLink.java;h=6d510563c5d32622bfbc3cfb854da885c21b4f27;hp=a39204ac3ba26e8892f6c79658625ca7f036067a;hb=3fe5c2f9fc01258d45c20070e9874d76bc6c8c07;hpb=9dcb4e2ab60ecf0cc7371c1b1a620be952fa8776

diff --git a/altoslib/AltosLink.java b/altoslib/AltosLink.java
index a39204ac..6d510563 100644
--- a/altoslib/AltosLink.java
+++ b/altoslib/AltosLink.java
@@ -17,13 +17,16 @@
 
 package org.altusmetrum.AltosLib;
 
-import java.lang.*;
 import java.io.*;
 import java.util.concurrent.*;
 import java.util.*;
-import java.text.*;
 
-public abstract class AltosLink {
+public abstract class AltosLink implements Runnable {
+
+	public final static int ERROR = -1;
+	public final static int TIMEOUT = -2;
+
+	public abstract int getchar();
 	public abstract void print(String data);
 	public abstract void close();
 
@@ -60,16 +63,116 @@ public abstract class AltosLink {
 		return null;
 	}
 
-	public String get_reply(int timeout) throws InterruptedException {
+	public String get_reply() throws InterruptedException {
+		return get_reply(5000);
+	}
+
+		
+	public abstract boolean can_cancel_reply();
+	public abstract boolean show_reply_timeout();
+	public abstract void hide_reply_timeout();
+
+	public boolean	reply_abort;
+	public int	in_reply;
+
+	boolean		reply_timeout_shown = false;
+
+	private boolean check_reply_timeout() {
+		if (!reply_timeout_shown)
+			reply_timeout_shown = show_reply_timeout();
+		return reply_abort;
+	}
+
+	private void cleanup_reply_timeout() {
+		if (reply_timeout_shown) {
+			reply_timeout_shown = false;
+			hide_reply_timeout();
+		}
+	}
+
+
+	public void run () {
+		int c;
+		byte[] line_bytes = null;
+		int line_count = 0;
+
 		try {
-			return get_reply_no_dialog(timeout);
-		} catch (TimeoutException te) {
-			return null;
+			for (;;) {
+				c = getchar();
+				if (Thread.interrupted()) {
+					if (debug)
+						System.out.printf("INTERRUPTED\n");
+					break;
+				}
+				if (c == ERROR) {
+					if (debug)
+						System.out.printf("ERROR\n");
+					add_telem (new AltosLine());
+					add_reply (new AltosLine());
+					break;
+				}
+				if (c == TIMEOUT) {
+					if (debug)
+						System.out.printf("TIMEOUT\n");
+					continue;
+				}
+				if (c == '\r')
+					continue;
+				synchronized(this) {
+					if (c == '\n') {
+						if (line_count != 0) {
+							add_bytes(line_bytes, line_count);
+							line_count = 0;
+						}
+					} else {
+						if (line_bytes == null) {
+							line_bytes = new byte[256];
+						} else if (line_count == line_bytes.length) {
+							byte[] new_line_bytes = new byte[line_count * 2];
+							System.arraycopy(line_bytes, 0, new_line_bytes, 0, line_count);
+							line_bytes = new_line_bytes;
+						}
+						line_bytes[line_count] = (byte) c;
+						line_count++;
+					}
+				}
+			}
+		} catch (InterruptedException e) {
 		}
 	}
 
-	public String get_reply() throws InterruptedException {
-		return get_reply(5000);
+	public String get_reply(int timeout) throws InterruptedException {
+		boolean	can_cancel = can_cancel_reply();
+		String	reply = null;
+
+		if (!can_cancel && remote)
+			System.out.printf("Uh-oh, reading remote serial device from swing thread\n");
+
+		if (remote && can_cancel)
+			timeout = 500;
+		try {
+			++in_reply;
+
+			flush_output();
+
+			reply_abort = false;
+			reply_timeout_shown = false;
+			for (;;) {
+				AltosLine line = reply_queue.poll(timeout, TimeUnit.MILLISECONDS);
+				if (line != null) {
+					cleanup_reply_timeout();
+					reply = line.line;
+					break;
+				}
+				if (!remote || !can_cancel || check_reply_timeout()) {
+					reply = null;
+					break;
+				}
+			}
+		} finally {
+			--in_reply;
+		}
+		return reply;
 	}
 
 	public void add_telem(AltosLine line) throws InterruptedException {
@@ -83,6 +186,14 @@ public abstract class AltosLink {
 		reply_queue.put (line);
 	}
 
+	public void abort_reply() {
+		try {
+			add_telem (new AltosLine());
+			add_reply (new AltosLine());
+		} catch (InterruptedException e) {
+		}
+	}
+
 	public void add_string(String line) throws InterruptedException {
 		if (line.startsWith("TELEM") || line.startsWith("VERSION") || line.startsWith("CRC")) {
 			add_telem(new AltosLine(line));
@@ -124,7 +235,10 @@ public abstract class AltosLink {
 
 
 	public void flush_input() throws InterruptedException {
-		flush_input(100);
+		if (remote)
+			flush_input(500);
+		else
+			flush_input(100);
 	}