mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 16:33:37 +01:00
e7f14dfdb8
from LLVM forever: grep -lR "llvm/System" * | grep -v .svn | xargs sed -ie 's#llvm/System#llvm/Support#g' llvm-svn: 120314
60 lines
2.4 KiB
C++
60 lines
2.4 KiB
C++
//===-- 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// TThis file defines llvm_start_multithreaded() and friends.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_SYSTEM_THREADING_H
|
|
#define LLVM_SYSTEM_THREADING_H
|
|
|
|
namespace llvm {
|
|
/// llvm_start_multithreaded - Allocate and initialize structures needed to
|
|
/// make LLVM safe for multithreading. The return value indicates whether
|
|
/// multithreaded initialization succeeded. LLVM will still be operational
|
|
/// on "failed" return, and will still be safe for hosting threading
|
|
/// applications in the JIT, but will not be safe for concurrent calls to the
|
|
/// LLVM APIs.
|
|
/// THIS MUST EXECUTE IN ISOLATION FROM ALL OTHER LLVM API CALLS.
|
|
bool llvm_start_multithreaded();
|
|
|
|
/// llvm_stop_multithreaded - Deallocate structures necessary to make LLVM
|
|
/// safe for multithreading.
|
|
/// THIS MUST EXECUTE IN ISOLATION FROM ALL OTHER LLVM API CALLS.
|
|
void llvm_stop_multithreaded();
|
|
|
|
/// llvm_is_multithreaded - Check whether LLVM is executing in thread-safe
|
|
/// mode or not.
|
|
bool llvm_is_multithreaded();
|
|
|
|
/// acquire_global_lock - Acquire the global lock. This is a no-op if called
|
|
/// before llvm_start_multithreaded().
|
|
void llvm_acquire_global_lock();
|
|
|
|
/// release_global_lock - Release the global lock. This is a no-op if called
|
|
/// before llvm_start_multithreaded().
|
|
void llvm_release_global_lock();
|
|
|
|
/// llvm_execute_on_thread - Execute the given \arg UserFn on a separate
|
|
/// thread, passing it the provided \arg 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);
|
|
}
|
|
|
|
#endif
|