1 files changed, 84 insertions, 0 deletions
diff --git a/src/traffic-incidents-service/org.genivi.trafficinfo.libmatthew/src/main/java/cx/ath/matthew/unix/USInputStream.java b/src/traffic-incidents-service/org.genivi.trafficinfo.libmatthew/src/main/java/cx/ath/matthew/unix/USInputStream.java
new file mode 100755
index 0000000..95a95e6
--- /dev/null
+++ b/src/traffic-incidents-service/org.genivi.trafficinfo.libmatthew/src/main/java/cx/ath/matthew/unix/USInputStream.java
@@ -0,0 +1,84 @@
+/*
+ * Java Unix Sockets Library
+ *
+ * Copyright (c) Matthew Johnson 2004
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ * 
+ * To Contact the author, please email src@matthew.ath.cx
+ *
+ */
+package cx.ath.matthew.unix;
+
+import java.io.InputStream;
+import java.io.IOException;
+
+public class USInputStream extends InputStream
+{ 
+   public static final int MSG_DONTWAIT = 0x40;
+   private native int native_recv(int sock, byte[] b, int off, int len, int flags, int timeout) throws IOException;
+   private int sock;
+   boolean closed = false;
+   private byte[] onebuf = new byte[1];
+   private UnixSocket us;
+   private boolean blocking = true;
+   private int flags = 0;
+   private int timeout = 0;
+   public USInputStream(int sock, UnixSocket us)
+   {
+      this.sock = sock;
+      this.us = us;
+   }
+   public void close() throws IOException
+   {
+      closed = true;
+      us.close();
+   }
+   public boolean markSupported() { return false; }
+   public int read() throws IOException
+   {
+      int rv = 0;
+      while (0 >= rv) rv = read(onebuf);
+      if (-1 == rv) return -1;
+      return 0 > onebuf[0] ? -onebuf[0] : onebuf[0];
+   }
+   public int read(byte[] b, int off, int len) throws IOException
+   {
+      if (closed) throw new NotConnectedException();
+      int count = native_recv(sock, b, off, len, flags, timeout);
+      /* Yes, I really want to do this. Recv returns 0 for 'connection shut down'.
+       * read() returns -1 for 'end of stream.
+       * Recv returns -1 for 'EAGAIN' (all other errors cause an exception to be raised)
+       * whereas read() returns 0 for '0 bytes read', so yes, I really want to swap them here.
+       */
+      if (0 == count) return -1;
+      else if (-1 == count) return 0;
+      else return count;
+   }
+   public boolean isClosed() { return closed; }
+   public UnixSocket getSocket() { return us; }
+   public void setBlocking(boolean enable)
+   {
+      flags = enable ? 0 : MSG_DONTWAIT;
+   }
+   public void setSoTimeout(int timeout)
+   {
+      this.timeout = timeout;
+   }
+}