From 25c6d26131ac830282ef78556e408f89b4c64a9e Mon Sep 17 00:00:00 2001
From: Francis Ricci <francisjricci@gmail.com>
Date: Mon, 18 Sep 2017 15:43:59 +0000
Subject: [PATCH] Revert "Use ThreadLauncher to launch TaskPool threads"

This reverts commit r313537 because it fails to link on linux buildbots

llvm-svn: 313539
---
 lldb/source/Utility/TaskPool.cpp | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/lldb/source/Utility/TaskPool.cpp b/lldb/source/Utility/TaskPool.cpp
index a210c8d6a0a0..d33f23cd861c 100644
--- a/lldb/source/Utility/TaskPool.cpp
+++ b/lldb/source/Utility/TaskPool.cpp
@@ -8,7 +8,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "lldb/Utility/TaskPool.h"
-#include "lldb/Host/ThreadLauncher.h"
 
 #include <cstdint> // for uint32_t
 #include <queue>   // for queue
@@ -24,8 +23,6 @@ public:
 private:
   TaskPoolImpl();
 
-  static lldb::thread_result_t WorkerPtr(void *pool);
-
   static void Worker(TaskPoolImpl *pool);
 
   std::queue<std::function<void()>> m_tasks;
@@ -48,7 +45,6 @@ TaskPoolImpl::TaskPoolImpl() : m_thread_count(0) {}
 
 void TaskPoolImpl::AddTask(std::function<void()> &&task_fn) {
   static const uint32_t max_threads = std::thread::hardware_concurrency();
-  const size_t min_stack_size = 8 * 1024 * 1024;
 
   std::unique_lock<std::mutex> lock(m_tasks_mutex);
   m_tasks.emplace(std::move(task_fn));
@@ -58,17 +54,10 @@ void TaskPoolImpl::AddTask(std::function<void()> &&task_fn) {
     // This prevents the thread
     // from exiting prematurely and triggering a linux libc bug
     // (https://sourceware.org/bugzilla/show_bug.cgi?id=19951).
-    lldb_private::ThreadLauncher::LaunchThread("task-pool.worker", WorkerPtr,
-                                               this, nullptr, min_stack_size)
-        .Release();
+    std::thread(Worker, this).detach();
   }
 }
 
-lldb::thread_result_t TaskPoolImpl::WorkerPtr(void *pool) {
-  Worker((TaskPoolImpl *)pool);
-  return 0;
-}
-
 void TaskPoolImpl::Worker(TaskPoolImpl *pool) {
   while (true) {
     std::unique_lock<std::mutex> lock(pool->m_tasks_mutex);