summaryrefslogtreecommitdiff
path: root/release_23/include/llvm/Support/ManagedStatic.h
diff options
context:
space:
mode:
Diffstat (limited to 'release_23/include/llvm/Support/ManagedStatic.h')
-rw-r--r--release_23/include/llvm/Support/ManagedStatic.h96
1 files changed, 0 insertions, 96 deletions
diff --git a/release_23/include/llvm/Support/ManagedStatic.h b/release_23/include/llvm/Support/ManagedStatic.h
deleted file mode 100644
index 28b25dbb623b..000000000000
--- a/release_23/include/llvm/Support/ManagedStatic.h
+++ /dev/null
@@ -1,96 +0,0 @@
-//===-- llvm/Support/ManagedStatic.h - Static Global wrapper ----*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the ManagedStatic class and the llvm_shutdown() function.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_SUPPORT_MANAGED_STATIC_H
-#define LLVM_SUPPORT_MANAGED_STATIC_H
-
-namespace llvm {
-
-/// object_deleter - Helper method for ManagedStatic.
-///
-template<class C>
-void object_deleter(void *Ptr) {
- delete (C*)Ptr;
-}
-
-/// ManagedStaticBase - Common base class for ManagedStatic instances.
-class ManagedStaticBase {
-protected:
- // This should only be used as a static variable, which guarantees that this
- // will be zero initialized.
- mutable void *Ptr;
- mutable void (*DeleterFn)(void*);
- mutable const ManagedStaticBase *Next;
-
- void RegisterManagedStatic(void *ObjPtr, void (*deleter)(void*)) const;
-public:
- /// isConstructed - Return true if this object has not been created yet.
- bool isConstructed() const { return Ptr != 0; }
-
- void destroy() const;
-};
-
-/// ManagedStatic - This transparently changes the behavior of global statics to
-/// be lazily constructed on demand (good for reducing startup times of dynamic
-/// libraries that link in LLVM components) and for making destruction be
-/// explicit through the llvm_shutdown() function call.
-///
-template<class C>
-class ManagedStatic : public ManagedStaticBase {
-public:
-
- // Accessors.
- C &operator*() {
- if (!Ptr) LazyInit();
- return *static_cast<C*>(Ptr);
- }
- C *operator->() {
- if (!Ptr) LazyInit();
- return static_cast<C*>(Ptr);
- }
- const C &operator*() const {
- if (!Ptr) LazyInit();
- return *static_cast<C*>(Ptr);
- }
- const C *operator->() const {
- if (!Ptr) LazyInit();
- return static_cast<C*>(Ptr);
- }
-
-public:
- void LazyInit() const {
- RegisterManagedStatic(new C(), object_deleter<C>);
- }
-};
-
-template<void (*CleanupFn)(void*)>
-class ManagedCleanup : public ManagedStaticBase {
-public:
- void Register() { RegisterManagedStatic(0, CleanupFn); }
-};
-
-
-/// llvm_shutdown - Deallocate and destroy all ManagedStatic variables.
-void llvm_shutdown();
-
-
-/// llvm_shutdown_obj - This is a simple helper class that calls
-/// llvm_shutdown() when it is destroyed.
-struct llvm_shutdown_obj {
- llvm_shutdown_obj() {}
- ~llvm_shutdown_obj() { llvm_shutdown(); }
-};
-
-}
-
-#endif