[libc-commits] [libc] [libc] at_quick_exit function implemented (PR #94317)

[via libc-commits]

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@@ -0,0 +1,52 @@
+//===-- Implementation header for exit_handler ------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_STDLIB_EXIT_HANDLER_H
+#define LLVM_LIBC_SRC_STDLIB_EXIT_HANDLER_H
+
+#include "src/__support/CPP/mutex.h" // lock_guard
+#include "src/__support/blockstore.h"
+#include "src/__support/common.h"
+#include "src/__support/fixedvector.h"
+#include "src/__support/threads/mutex.h"
+
+namespace LIBC_NAMESPACE {
+
+using AtExitCallback = void(void *);
+using StdCAtExitCallback = void(void);
+constexpr size_t CALLBACK_LIST_SIZE_FOR_TESTS = 1024;
+
+struct AtExitUnit {
+  AtExitCallback *callback = nullptr;
+  void *payload = nullptr;
+  constexpr AtExitUnit() = default;
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RoseZhang03 wrote:

add LIBC_INLINE tag in front of the two constexpr lines

https://github.com/llvm/llvm-project/pull/94317