Move Singleton out of folly/experimental into folly/

[folly.git] / folly / SingletonVault_c.h

diff --git a/folly/SingletonVault_c.h b/folly/SingletonVault_c.h
new file mode 100644 (file)
index 0000000..da3f5af
--- /dev/null
+++ b/folly/SingletonVault_c.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2015 Facebook, 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.
+ */
+
+// Plain C interface to SingletonVault. This facilitates combining programs
+// that cannot use C++ (e.g. programs written in C) with libraries that use
+// Singleton, by allowing the program to perform the required SingletonVault
+// lifecycle calls.
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void SingletonVault_t;
+
+SingletonVault_t *SingletonVault_singleton();
+void SingletonVault_registrationComplete(SingletonVault_t *vault);
+void SingletonVault_destroyInstances(SingletonVault_t *vault);
+void SingletonVault_reenableInstances(SingletonVault_t *vault);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif