Add XmlSearchBinding

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@15406 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/languages/mod_managed/managed/FreeSWITCH.Managed.csproj

@@ -59,6 +59,7 @@
     <Compile Include="ScriptPluginManager.cs" />
     <Compile Include="swig.cs" />
     <Compile Include="Util.cs" />
+    <Compile Include="XmlSearchBinding.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 

src/mod/languages/mod_managed/managed/Makefile

@@ -4,7 +4,7 @@ clean:
 	rm -fr FreeSWITCH.Managed.dll
 
 FreeSWITCH.Managed.dll: AssemblyInfo.cs Extensions.cs Loader.cs Log.cs ManagedSession.cs PluginInterfaces.cs PluginManager.cs ScriptPluginManager.cs swig.cs
-	gmcs -target:library -out:FreeSWITCH.Managed.dll AssemblyInfo.cs Extensions.cs Loader.cs Log.cs ManagedSession.cs PluginInterfaces.cs PluginManager.cs ScriptPluginManager.cs ChannelVariables.cs Util.cs swig.cs
+	gmcs -target:library -out:FreeSWITCH.Managed.dll AssemblyInfo.cs Extensions.cs Loader.cs Log.cs ManagedSession.cs PluginInterfaces.cs PluginManager.cs ScriptPluginManager.cs ChannelVariables.cs Util.cs swig.cs XmlSearchBinding.cs
 
 install: FreeSWITCH.Managed.dll
 	$(INSTALL) FreeSWITCH.Managed.dll $(DESTDIR)$(MODINSTDIR)

src/mod/languages/mod_managed/managed/XmlSearchBinding.cs

@@ -0,0 +1,95 @@
+/* 
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application - mod_managed
+ * Copyright (C) 2008, Michael Giagnocavo <mgg@giagnocavo.net>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application - mod_managed
+ *
+ * The Initial Developer of the Original Code is
+ * Michael Giagnocavo <mgg@giagnocavo.net>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * 
+ * Michael Giagnocavo <mgg@giagnocavo.net>
+ * 
+ * XmlSearchBinding.cs - Helpers for switch_xml_bind_search_function
+ *
+ */
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Runtime.InteropServices;
+using System.Reflection;
+using FreeSWITCH.Native;
+
+namespace FreeSWITCH {
+
+    public class SwitchXmlSearchBinding : IDisposable {
+
+        public class XmlBindingArgs {
+            public string Section { get; set; }
+            public string TagName { get; set; }
+            public string KeyName { get; set; }
+            public string KeyValue { get; set; }
+            public switch_event Parameters { get; set; }
+        }
+
+        //typedef switch_xml_t (*switch_xml_search_function_t) (const char *section,
+        //                                              const char *tag_name, const char *key_name, const char *key_value, switch_event_t *params,
+        //                                              void *user_data);
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        delegate switch_xml switch_xml_search_function_delegate(string section, string tag_name, string key_name, string key_value, switch_event param, IntPtr user_data);
+
+        readonly switch_xml_search_function_delegate del; // Prevent GC
+        readonly SWIGTYPE_p_f_p_q_const__char_p_q_const__char_p_q_const__char_p_q_const__char_p_switch_event_t_p_void__p_switch_xml function;
+
+        private SwitchXmlSearchBinding(SWIGTYPE_p_f_p_q_const__char_p_q_const__char_p_q_const__char_p_q_const__char_p_switch_event_t_p_void__p_switch_xml function,
+            switch_xml_search_function_delegate origDelegate) {
+            this.function = function;
+            this.del = origDelegate;
+        }
+        bool disposed;
+        public void Dispose() {
+            dispose();
+            GC.SuppressFinalize(this);
+        }
+        void dispose() {
+            if (disposed) return;
+            freeswitch.switch_xml_unbind_search_function_ptr(this.function);
+            disposed = true;
+        }
+        ~SwitchXmlSearchBinding() {
+            dispose();
+        }
+
+        public static IDisposable Bind(Func<XmlBindingArgs, string> f, switch_xml_section_enum_t sections) {
+            switch_xml_search_function_delegate boundFunc = (section, tag, key, keyval, param, userData) => {
+                var args = new XmlBindingArgs { Section = section, TagName = tag, KeyName = key, KeyValue = keyval, Parameters = param };
+                var xmlStr = f(args);
+                var fsxml = freeswitch.switch_xml_parse_str_dynamic(xmlStr, switch_bool_t.SWITCH_FALSE);
+                return fsxml;
+            };
+            var fp = Marshal.GetFunctionPointerForDelegate(boundFunc);
+            var swigFp = new SWIGTYPE_p_f_p_q_const__char_p_q_const__char_p_q_const__char_p_q_const__char_p_switch_event_t_p_void__p_switch_xml(fp, false);
+            var res = freeswitch.switch_xml_bind_search_function_ret(swigFp, (uint)sections, null, null);
+            if (res != switch_status_t.SWITCH_STATUS_SUCCESS) {
+                throw new InvalidOperationException("Call to switch_xml_bind_search_function_ret failed, result: " + res + ".");
+            }
+            return new SwitchXmlSearchBinding(swigFp, boundFunc);
+        }
+    }
+}