Merged revisions 532430 by hand from

https://svn.apache.org/repos/asf/incubator/qpid/branches/trunk/qpid/cpp

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r532430 | aconway | 2007-04-25 14:06:14 -0400 (Wed, 25 Apr 2007) | 10 lines


 * qpid/CommonOptions.h:
  - Convenience classs/functions to use boost::program_options.
  - CommonOptions class for options common to client/broker.
 * qpid/broker/Broker.h:
  - Replaced broker::Configuration with class Broker::Options,
    derived from CommonOptions.
 * qpidd.cpp: Updated options handling.
 * qpid/Exception.h: Added strError function to get std::string from errno.

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git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/branches/M2@532787 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 91 insertions, 0 deletions

diff --git a/cpp/lib/CommonOptions.h b/cpp/lib/CommonOptions.h
new file mode 100644
index 0000000000..2a4b9798cd
--- /dev/null
+++ b/cpp/lib/CommonOptions.h
@@ -0,0 +1,91 @@
+#ifndef QPID_COMMONOPTIONS_H
+#define QPID_COMMONOPTIONS_H
+
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+
+namespace qpid { 
+
+/**@Qpid extensions to boost::program_options */
+namespace program_options {
+
+using namespace boost::program_options;
+
+/** @internal Normally only constructed by optValue() */
+template <class T>
+class OptionValue : public typed_value<T> {
+  public:
+    OptionValue(T& value, const std::string& arg)
+        : typed_value<T>(&value), argName(arg) {}
+    std::string name() const { return argName; }
+  private:
+    std::string argName;
+};
+
+/**
+ * Like boost::program_options::value() with more convenient signature
+ * for updating a value by reference and nicer help formatting.
+ * 
+ *@param value displayed as default in help, updated from options.
+ * Must support ostream << operator.
+ *@param arg name for arguments  in help.
+ *
+ *@see CommonOptions.cpp for example of use.
+ */ 
+template<class T>
+value_semantic* optValue(T& value, const char* arg) {
+    std::string val(boost::lexical_cast<std::string>(value));
+    std::string argName(
+        val.empty() ? std::string(arg) :
+        (boost::format("%s (=%s) ") % arg % val).str());
+    return new OptionValue<T>(value, argName);
+}
+
+/**
+ * Like boost::program_options::bool_switch but takes reference, not pointer.
+ */
+inline value_semantic* optValue(bool& value) { return bool_switch(&value); }
+
+} // namespace program_options
+
+namespace po=program_options;   // Convenience alias.
+
+/**
+ * Common options for client and broker
+ */
+struct CommonOptions {
+    static const int DEFAULT_PORT;
+
+    CommonOptions();
+
+    bool trace;
+    int port;
+
+    /** Add  members to program_options to be updated */
+    void addTo(po::options_description&);
+};
+
+} // namespace qpid
+
+#endif  /*!QPID_COMMONOPTIONS_H*/