SERVER-5112 Introduce runGlobalInitializers(), macros and tools for global initializer declaration.

These utilities simplify adding global (process-wide) initializers that run at the beginning of
main().

Also, run the global initializers in the main() of unittests.

1 files changed, 23 insertions, 0 deletions

diff --git a/src/mongo/base/init.cpp b/src/mongo/base/init.cpp
new file mode 100644
index 00000000000..c03e63dd786
--- /dev/null
+++ b/src/mongo/base/init.cpp
@@ -0,0 +1,23 @@
+/*    Copyright 2012 10gen Inc.
+ *
+ *    Licensed 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 "mongo/base/init.h"
+
+MONGO_INITIALIZER_GROUP(default, MONGO_NO_PREREQUISITES, MONGO_NO_DEPENDENTS)
+
+MONGO_INITIALIZER_GROUP(globalVariableConfigurationStarted, MONGO_NO_PREREQUISITES, MONGO_NO_DEPENDENTS)
+MONGO_INITIALIZER_GROUP(globalVariablesDeclared, ("globalVariableConfigurationStarted"), MONGO_NO_DEPENDENTS)
+MONGO_INITIALIZER_GROUP(globalVariablesSet, ("globalVariablesDeclared"), MONGO_NO_DEPENDENTS)
+MONGO_INITIALIZER_GROUP(globalVariablesConfigured, ("globalVariablesDeclared"), ("default"))