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-rw-r--r--include/llvm/System/ThreadLocal.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/llvm/System/ThreadLocal.h b/include/llvm/System/ThreadLocal.h
index 39b1e64be0cd..e6edd79d6ff1 100644
--- a/include/llvm/System/ThreadLocal.h
+++ b/include/llvm/System/ThreadLocal.h
@@ -19,6 +19,8 @@
namespace llvm {
namespace sys {
+ // ThreadLocalImpl - Common base class of all ThreadLocal instantiations.
+ // YOU SHOULD NEVER USE THIS DIRECTLY.
class ThreadLocalImpl {
void* data;
public:
@@ -26,14 +28,25 @@ namespace llvm {
virtual ~ThreadLocalImpl();
void setInstance(const void* d);
const void* getInstance();
+ void removeInstance();
};
+ /// ThreadLocal - A class used to abstract thread-local storage. It holds,
+ /// for each thread, a pointer a single object of type T.
template<class T>
class ThreadLocal : public ThreadLocalImpl {
public:
ThreadLocal() : ThreadLocalImpl() { }
+
+ /// get - Fetches a pointer to the object associated with the current
+ /// thread. If no object has yet been associated, it returns NULL;
T* get() { return static_cast<T*>(getInstance()); }
+
+ // set - Associates a pointer to an object with the current thread.
void set(T* d) { setInstance(d); }
+
+ // erase - Removes the pointer associated with the current thread.
+ void erase() { removeInstance(); }
};
}
}