1 files changed, 113 insertions, 0 deletions
diff --git a/plugins/org.eclipse.tcf.debug.ui/src/org/eclipse/tcf/internal/debug/ui/launch/setup/AbstractRemoteShell.java b/plugins/org.eclipse.tcf.debug.ui/src/org/eclipse/tcf/internal/debug/ui/launch/setup/AbstractRemoteShell.java
new file mode 100644
index 000000000..066ab0630
--- /dev/null
+++ b/plugins/org.eclipse.tcf.debug.ui/src/org/eclipse/tcf/internal/debug/ui/launch/setup/AbstractRemoteShell.java
@@ -0,0 +1,113 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2010 Wind River Systems, Inc. and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Wind River Systems - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.tm.internal.tcf.debug.ui.launch.setup;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.PrintWriter;
+
+abstract class AbstractRemoteShell implements IRemoteShell {
+
+    protected boolean debug;
+    protected BufferedReader inp;
+    protected PrintWriter out;
+
+    public void setDebug(boolean debug) {
+        this.debug = debug;
+    }
+
+    public synchronized void write(String s) {
+        out.write(s);
+    }
+
+    public synchronized void expect(String s) throws IOException {
+        expect(new String[]{ s });
+    }
+
+    public synchronized int expect(String s[]) throws IOException {
+        out.flush();
+        int[] pos = new int[s.length];
+        for (int i = 0; i < pos.length; i++) pos[i] = 0;
+        StringBuffer buf = new StringBuffer();
+        try {
+            for (;;) {
+                int ch = inp.read();
+                if (ch < 0) throw new IOException("Unexpected EOF");
+                if (ch == '\r') continue;
+                if (debug) System.out.write(ch);
+                for (int i = 0; i < pos.length; i++) {
+                    String p = s[i];
+                    if (ch == p.charAt(pos[i])) {
+                        pos[i]++;
+                        if (pos[i] == p.length()) return i;
+                    }
+                    else {
+                        int nps = pos[i];
+                        while (nps > 0) {
+                            if (ch == p.charAt(nps - 1)) {
+                                int j = nps - 2;
+                                int k = pos[i] - 1;
+                                while (j >= 0 && p.charAt(j) == p.charAt(k)) {
+                                    j--;
+                                    k--;
+                                }
+                                if (j < 0) break;
+                            }
+                            nps--;
+                        }
+                        pos[i] = nps;
+                    }
+                }
+                buf.append((char)ch);
+                if (ch == '\n') buf.setLength(0);
+            }
+        }
+        catch (IOException x) {
+            if (buf.length() == 0) throw x;
+            IOException y = new IOException("I/O error, last text received: " + buf);
+            y.initCause(x);
+            throw y;
+        }
+        finally {
+            if (debug) System.out.flush();
+        }
+    }
+
+    public synchronized String waitPrompt() throws IOException {
+        StringBuffer res = new StringBuffer();
+        StringBuffer buf = new StringBuffer();
+        out.flush();
+        try {
+            for (;;) {
+                int ch = inp.read();
+                if (ch < 0) throw new IOException("Unexpected EOF");
+                if (ch == '\r') continue;
+                if (debug) System.out.write(ch);
+                buf.append((char)ch);
+                if (buf.length() == PROMPT.length() && buf.toString().equals(PROMPT)) break;
+                if (ch == '\n') {
+                    res.append(buf);
+                    buf.setLength(0);
+                }
+            }
+            return res.toString();
+        }
+        catch (IOException x) {
+            if (buf.length() == 0) throw x;
+            IOException y = new IOException("I/O error, last text received: " + buf);
+            y.initCause(x);
+            throw y;
+        }
+        finally {
+            if (debug) System.out.flush();
+        }
+    }
+}