#ifndef LLVM_SUPPORT_THREADING_H
#define LLVM_SUPPORT_THREADING_H
-#if !defined(__MINGW__)
-#include <mutex>
-#endif
-
namespace llvm {
/// Returns true if LLVM is compiled with support for multi-threading, and
/// false otherwise.
bool llvm_is_multithreaded();
/// llvm_execute_on_thread - Execute the given \p UserFn on a separate
- /// thread, passing it the provided \p UserData.
+ /// thread, passing it the provided \p UserData and waits for thread
+ /// completion.
///
/// This function does not guarantee that the code will actually be executed
/// on a separate thread or honoring the requested stack size, but tries to do
/// the thread stack.
void llvm_execute_on_thread(void (*UserFn)(void*), void *UserData,
unsigned RequestedStackSize = 0);
-
-/// \brief Execute the function specified as a template parameter once.
-///
-/// Calls \p UserFn once ever. The call uniqueness is based on the address of
-/// the function passed in via the template arguement. This means no matter how
-/// many times you call llvm_call_once<foo>() in the same or different
-/// locations, foo will only be called once.
-///
-/// Typical usage:
-/// \code
-/// void foo() {...};
-/// ...
-/// llvm_call_once<foo>();
-/// \endcode
-///
-/// \param UserFn Function to call once.
-template <void (*UserFn)(void)> void llvm_call_once() {
-#if !defined(__MINGW__)
- static std::once_flag flag;
- std::call_once(flag, UserFn);
-#else
- struct InitOnceWrapper {
- InitOnceWrapper() { UserFn(); }
- };
- static InitOnceWrapper InitOnceVar;
-#endif
-}
}
#endif