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common/rdr/Exception.h

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+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright (C) 2004 Red Hat Inc.
+ * Copyright (C) 2010 TigerVNC Team
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifndef __RDR_EXCEPTION_H__
+#define __RDR_EXCEPTION_H__
+
+#ifdef __GNUC__
+#  define __printf_attr(a, b) __attribute__((__format__ (__printf__, a, b)))
+#else
+#  define __printf_attr(a, b)
+#endif // __GNUC__
+
+namespace rdr {
+
+  struct Exception {
+    enum { len = 256 };
+    char str_[len];
+    Exception(const char *format = 0, ...) __printf_attr(2, 3);
+    virtual ~Exception() {}
+    virtual const char* str() const { return str_; }
+  };
+
+  struct SystemException : public Exception {
+    int err;
+    SystemException(const char* s, int err_);
+  }; 
+
+  struct TimedOut : public Exception {
+    TimedOut() : Exception("Timed out") {}
+  };
+ 
+  struct EndOfStream : public Exception {
+    EndOfStream() : Exception("End of stream") {}
+  };
+
+}
+
+#endif