SERVER-7778 : new parameter management system for runtime (command line later)

1 files changed, 64 insertions, 0 deletions

diff --git a/src/mongo/db/server_parameters.cpp b/src/mongo/db/server_parameters.cpp
new file mode 100644
index 00000000000..05565a79044
--- /dev/null
+++ b/src/mongo/db/server_parameters.cpp
@@ -0,0 +1,64 @@
+// server_parameters.cpp
+
+/**
+*    Copyright (C) 2012 10gen Inc.
+*
+*    This program is free software: you can redistribute it and/or  modify
+*    it under the terms of the GNU Affero General Public License, version 3,
+*    as published by the Free Software Foundation.
+*
+*    This program 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 Affero General Public License for more details.
+*
+*    You should have received a copy of the GNU Affero General Public License
+*    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "mongo/pch.h"
+
+#include "mongo/db/server_parameters.h"
+
+namespace mongo {
+
+    namespace {
+        ServerParameterSet* GLOBAL = NULL;
+    }
+
+    ServerParameter::ServerParameter( ServerParameterSet* sps, const std::string& name )
+        : _name( name ) {
+
+        if ( sps ) {
+            sps->add( this );
+        }
+    }
+
+    ServerParameter::~ServerParameter() {
+    }
+
+    ServerParameterSet* ServerParameterSet::getGlobal() {
+        if ( !GLOBAL ) {
+            GLOBAL = new ServerParameterSet();
+        }
+        return GLOBAL;
+    }
+
+    void ServerParameterSet::add( ServerParameter* sp ) {
+        ServerParameter*& x = _map[sp->name()];
+        if ( x ) abort();
+        x = sp;
+    }
+
+
+    // obviously this is a sample, not real
+    // below this is all samples and won't be in the real one
+
+    ExportedServerParameter<int> logLevelParam( ServerParameterSet::getGlobal(), "logLevel", &logLevel );
+
+    string x = "a";
+    ExportedServerParameter<string> xxx( ServerParameterSet::getGlobal(), "xxx", &x );
+
+    MONGO_EXPORT_SERVER_PARAMETER( y, string, "hh" );
+
+}