1 files changed, 244 insertions, 0 deletions
diff --git a/gnuradio-runtime/lib/gr_error_handler.cc b/gnuradio-runtime/lib/gr_error_handler.cc
new file mode 100644
index 0000000000..448682966e
--- /dev/null
+++ b/gnuradio-runtime/lib/gr_error_handler.cc
@@ -0,0 +1,244 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+/*
+ * This code is based on error.cc from the "Click Modular Router".
+ * Original copyright follows:
+ */
+/*
+ * error.{cc,hh} -- flexible classes for error reporting
+ * Eddie Kohler
+ *
+ * Copyright (c) 1999-2000 Massachusetts Institute of Technology
+ *
+ * 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, subject to the conditions
+ * listed in the Click LICENSE file. These conditions include: you must
+ * preserve this copyright notice, and you cannot mention the copyright
+ * holders in advertising related to the Software without their permission.
+ * The Software is provided WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED. This
+ * notice is a summary of the Click LICENSE file; the license in that file is
+ * legally binding.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gr_error_handler.h>
+#include <assert.h>
+#include <stdexcept>
+#include <unistd.h>
+
+#ifdef HAVE_IO_H
+#include <io.h>
+#endif
+
+static gr_error_handler	*s_default_handler = 0;
+static gr_error_handler *s_silent_handler = 0;
+
+bool
+gr_error_handler::has_default_handler()
+{
+  return s_default_handler != 0;
+}
+
+void
+gr_error_handler::set_default_handler(gr_error_handler *errh)
+{
+  s_default_handler = errh;
+}
+
+gr_error_handler *
+gr_error_handler::default_handler()
+{
+  assert (s_default_handler != 0);
+  return s_default_handler;
+}
+
+gr_error_handler *
+gr_error_handler::silent_handler()
+{
+  assert (s_silent_handler != 0);
+  return s_silent_handler;
+}
+
+// ----------------------------------------------------------------
+
+gr_error_handler::~gr_error_handler()
+{
+  // nop
+}
+
+void
+gr_error_handler::debug(const char *format, ...)
+{
+  va_list val;
+  va_start(val, format);
+  verror(ERR_DEBUG, format, val);
+  va_end(val);
+}
+
+void
+gr_error_handler::message(const char *format, ...)
+{
+  va_list val;
+  va_start(val, format);
+  verror(ERR_MESSAGE, format, val);
+  va_end(val);
+}
+
+void
+gr_error_handler::warning(const char *format, ...)
+{
+  va_list val;
+  va_start(val, format);
+  verror(ERR_WARNING, format, val);
+  va_end(val);
+}
+
+void
+gr_error_handler::error(const char *format, ...)
+{
+  va_list val;
+  va_start(val, format);
+  verror(ERR_ERROR, format, val);
+  va_end(val);
+}
+
+void
+gr_error_handler::fatal(const char *format, ...)
+{
+  va_list val;
+  va_start(val, format);
+  verror(ERR_FATAL, format, val);
+  va_end(val);
+}
+
+void
+gr_error_handler::verror(seriousness s, const char *format, va_list val)
+{
+  std::string text = make_text(s, format, val);
+  handle_text(s, text);
+  count_error(s);
+}
+
+void
+gr_error_handler::verror_text(seriousness s, const std::string &text)
+{
+  // text is already made
+  handle_text(s, text);
+  count_error(s);
+}
+
+std::string
+gr_error_handler::make_text(seriousness s, const char *format, va_list val)
+{
+  char text_buf[4096];
+  vsnprintf(text_buf, sizeof(text_buf), format, val);
+  text_buf[sizeof(text_buf)-1] = 0;
+  return text_buf;
+}
+
+// ----------------------------------------------------------------
+
+void
+gr_base_error_handler::count_error(seriousness s)
+{
+  if (s < ERR_WARNING)
+    /* do nothing */;
+  else if (s < ERR_ERROR)
+    d_nwarnings++;
+  else
+    d_nerrors++;
+}
+
+// ----------------------------------------------------------------
+
+gr_file_error_handler::gr_file_error_handler(FILE *file)
+  : d_file(file), d_fd(-1)
+{
+}
+
+gr_file_error_handler::gr_file_error_handler(int file_descriptor)
+{
+  d_fd = dup(file_descriptor);	// so we can fclose it
+  if (d_fd == -1){
+    perror("gr_file_error_handler:dup");
+    throw std::invalid_argument("gr_file_error_handler:dup");
+  }
+  d_file = fdopen(d_fd, "w");
+  if (d_file == 0){
+    perror("gr_file_error_handler:fdopen");
+    throw std::invalid_argument("gr_file_error_handler:fdopen");
+  }
+}
+
+gr_file_error_handler::~gr_file_error_handler()
+{
+  if (d_fd != -1){
+    fclose(d_file);
+  }
+}
+
+void
+gr_file_error_handler::handle_text(seriousness s, const std::string &text)
+{
+  if (text.length() <= 0)
+    return;
+
+  fwrite(text.data(), 1, text.length(), d_file);
+  if (text[text.length()-1] != '\n')
+    fwrite("\n", 1, 1, d_file);
+
+  if (d_fd != -1)
+    fflush(d_file);	// keep synced with any other users of fd
+}
+
+
+// ----------------------------------------------------------------
+// static error handlers
+//
+
+class gr_silent_error_handler : public gr_base_error_handler
+{
+public:
+  gr_silent_error_handler() {}
+  void handle_text(seriousness s, const std::string &str);
+};
+
+void
+gr_silent_error_handler::handle_text(seriousness s, const std::string &str)
+{
+  // nop
+}
+
+class force_init {
+public:
+  force_init()
+  {
+    s_default_handler = new gr_file_error_handler(stdout);
+    s_silent_handler = new gr_silent_error_handler();
+  }
+};
+
+static force_init	kludge;