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Diffstat (limited to 'llvm/lib/Support/ThreadPool.cpp')
-rw-r--r--llvm/lib/Support/ThreadPool.cpp23
1 files changed, 9 insertions, 14 deletions
diff --git a/llvm/lib/Support/ThreadPool.cpp b/llvm/lib/Support/ThreadPool.cpp
index 40982d7..5aa5815 100644
--- a/llvm/lib/Support/ThreadPool.cpp
+++ b/llvm/lib/Support/ThreadPool.cpp
@@ -20,16 +20,15 @@ using namespace llvm;
#if LLVM_ENABLE_THREADS
-// Default to hardware_concurrency
-ThreadPool::ThreadPool() : ThreadPool(hardware_concurrency()) {}
-
-ThreadPool::ThreadPool(unsigned ThreadCount)
- : ActiveThreads(0), EnableFlag(true) {
+ThreadPool::ThreadPool(ThreadPoolStrategy S)
+ : ActiveThreads(0), EnableFlag(true),
+ ThreadCount(S.compute_thread_count()) {
// Create ThreadCount threads that will loop forever, wait on QueueCondition
// for tasks to be queued or the Pool to be destroyed.
Threads.reserve(ThreadCount);
for (unsigned ThreadID = 0; ThreadID < ThreadCount; ++ThreadID) {
- Threads.emplace_back([&] {
+ Threads.emplace_back([S, ThreadID, this] {
+ S.apply_thread_strategy(ThreadID);
while (true) {
PackagedTaskTy Task;
{
@@ -108,12 +107,10 @@ ThreadPool::~ThreadPool() {
#else // LLVM_ENABLE_THREADS Disabled
-ThreadPool::ThreadPool() : ThreadPool(0) {}
-
// No threads are launched, issue a warning if ThreadCount is not 0
-ThreadPool::ThreadPool(unsigned ThreadCount)
- : ActiveThreads(0) {
- if (ThreadCount) {
+ThreadPool::ThreadPool(ThreadPoolStrategy S)
+ : ActiveThreads(0), ThreadCount(S.compute_thread_count()) {
+ if (ThreadCount != 1) {
errs() << "Warning: request a ThreadPool with " << ThreadCount
<< " threads, but LLVM_ENABLE_THREADS has been turned off\n";
}
@@ -138,8 +135,6 @@ std::shared_future<void> ThreadPool::asyncImpl(TaskTy Task) {
return Future;
}
-ThreadPool::~ThreadPool() {
- wait();
-}
+ThreadPool::~ThreadPool() { wait(); }
#endif