# HG changeset patch
# User Markus Bröker <mbroeker@largo.dyndns.tv>
# Date 1239878952 -7200
# Node ID 77094ec383cf0f31f2abdbc225d6eb1e2c6e87f4
# Parent  b94d657a9acb54a0bdcd13c087b7fe596227a9af
libConsole: a java native interface example

 * getch: unbuffered character input

committer: Markus Bröker <mbroeker@largo.homelinux.org>

diff --git a/libConsole/Console.java b/libConsole/Console.java
new file mode 100644
--- /dev/null
+++ b/libConsole/Console.java
@@ -0,0 +1,6 @@
+public class Console {
+    public static native int getch ();
+    static {
+        System.loadLibrary ("Console");
+    }
+}
diff --git a/libConsole/Getch.java b/libConsole/Getch.java
new file mode 100644
--- /dev/null
+++ b/libConsole/Getch.java
@@ -0,0 +1,20 @@
+import java.io.*;
+
+public class Getch {
+    public static void main (String args[]) {
+        int c;
+
+        System.out.println ("Press q or ESCAPE to quit");
+        for (;;) {
+            c = Console.getch ();
+            switch (c) {
+            case 27:
+            case 'q':
+                System.exit (0);
+                break;
+            default:
+                System.out.printf ("KEY: %c (%d)\n", c, c);
+            }
+        }
+    };
+};
diff --git a/libConsole/Makefile b/libConsole/Makefile
new file mode 100644
--- /dev/null
+++ b/libConsole/Makefile
@@ -0,0 +1,47 @@
+CC=gcc
+JAVA=java
+JAVAH=javah
+JAVAC=javac
+LIB=lib/libConsole.so
+
+ifdef JAVA_HOME
+	JAVA_DIR="$(JAVA_HOME)"
+else
+	JAVA_DIR=/usr/lib/jvm/java-6-sun
+endif
+
+INCLUDE=-I$(JAVA_DIR)/include -I$(JAVA_DIR)/include/linux -Iinclude
+SOURCES= \
+	Getch.java \
+	Console.java
+
+OBJECTS= \
+	getch.o
+
+.SUFFIXES: .java
+
+.c.o:
+	@echo "JAVA_HOME=$(JAVA_DIR)"
+	$(CC) -c $(CFLAGS) $(INCLUDE) $< -o $@
+
+all: Getch.class $(LIB)
+
+Getch.class: $(SOURCES)
+	$(JAVAC) -d . $(SOURCES)
+	$(JAVAH) -jni -d include Console
+
+$(LIB): $(OBJECTS)
+	$(CC) -shared -Wl,-soname,libConsole.so.1,-rpath,lib $(OBJECTS) -o $@
+
+.PHONY: clean
+
+clean:
+	rm -f include/Getch.h include/Console.h *.class *~ $(LIB)
+	rm -f $(OBJECTS)
+
+debug: Getch.class lib/libConsole.so
+	LD_LIBRARY_PATH=lib $(JAVA) -cp . Getch
+
+run: Getch.class $(LIB)
+	@echo "You need to copy libConsole.(so|dll) to $(JAVA_DIR)/jre/lib/i386"
+	$(JAVA) -cp . Getch
diff --git a/libConsole/getch.c b/libConsole/getch.c
new file mode 100644
--- /dev/null
+++ b/libConsole/getch.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <jni.h>
+#include <Console.h>
+
+#ifdef WIN32
+#include <conio.h>
+
+int getch ()
+{
+    int ch = -1;
+
+    while (!kbhit ()) {
+        ch =::getch ();
+    }
+
+    return ch;
+}
+
+#else
+#include <termios.h>
+
+int getch ()
+{
+    int ch = -1, fd = 0;
+    struct termios neu, alt;
+
+    fd = fileno (stdin);
+    tcgetattr (fd, &alt);
+    neu = alt;
+    neu.c_lflag &= ~(ICANON | ECHO);
+    tcsetattr (fd, TCSANOW, &neu);
+    ch = getchar ();
+    tcsetattr (fd, TCSANOW, &alt);
+    return ch;
+}
+#endif
+
+JNIEXPORT jint JNICALL Java_Console_getch (JNIEnv * env, jclass lass)
+{
+    return getch ();
+}
diff --git a/libConsole/include/.keep b/libConsole/include/.keep
new file mode 100644
diff --git a/libConsole/lib/.keep b/libConsole/lib/.keep
new file mode 100644