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//===-- llvm/Support/Threading.h - Control multithreading mode --*- C++ -*-===//
// The LLVM Compiler Infrastructure
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// This file declares helper functions for running LLVM in a multi-threaded
// environment.
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.
/// 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
/// so where system support is available.
/// \param UserFn - The callback to execute.
/// \param UserData - An argument to pass to the callback function.
/// \param RequestedStackSize - If non-zero, a requested size (in bytes) for
/// the thread stack.
void llvm_execute_on_thread(void (*UserFn)(void*), void *UserData,
unsigned RequestedStackSize = 0);