[clang] [llvm] [clang][MBD] set up module build daemon infrastructure (PR #67562)

[Connor Sughrue via cfe-commits]

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@@ -0,0 +1,289 @@
+//===------- cc1modbuildd_main.cpp - Clang CC1 Module Build Daemon --------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Tooling/ModuleBuildDaemon/SocketSupport.h"
+#include "clang/Tooling/ModuleBuildDaemon/Utils.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/ThreadPool.h"
+
+#include <csignal>
+#include <cstdbool>
+#include <cstdio>
+#include <cstring>
+#include <fstream>
+#include <optional>
+#include <string>
+#include <system_error>
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <unistd.h>
+#endif
+
+using namespace llvm;
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cpsughrue wrote:

See if convenient to remove

https://github.com/llvm/llvm-project/pull/67562