From 80f56f53d06d847cf9b08d5ef33d4f42f408b1c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kjist=C3=B3f?= <mrtoth@strongds.hu>
Date: Mon, 2 May 2016 17:38:08 +0200
Subject: [PATCH] added new test, and refactored old into a method, planned
 others

---
 main.cpp | 59 +++++++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 48 insertions(+), 11 deletions(-)

diff --git a/main.cpp b/main.cpp
index 7ca01d8..214184e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -48,6 +48,11 @@
 /* for the tests */
 #include <boost/multiprecision/cpp_int.hpp>
 #include <boost/type_index.hpp>
+//#include <boost/asio/io_service.hpp>
+//#include <boost/bind.hpp>
+//#include <boost/thread/thread.hpp>
+
+
 
 class thread_pool
 {
@@ -220,27 +225,59 @@ boost::multiprecision::cpp_int mp_factorial(unsigned long long int number)
     return num;
 }
 
-int main(void)
+void simpleTask()
+{
+    std::this_thread::sleep_for(std::chrono::milliseconds(1));
+}
+
+void function_vs_packaged_task_test(thread_pool &tp, const unsigned short TIMES = 10000)
 {
-    using std::cout;
-    using std::cin;
-    using std::endl;
     namespace ch = std::chrono;
     namespace mp = boost::multiprecision;
 
-    thread_pool tp(4);
 
-    auto fu1 = tp.add_task(mp_factorial, 6);
-    std::packaged_task<mp::cpp_int()> pt(std::bind(mp_factorial, 5));
+    auto fstart = ch::high_resolution_clock::now();
+    for (int j = 0; j < TIMES; ++j)
+    {
+        tp.add_task(simpleTask);
+    }
+    auto fdur = ch::high_resolution_clock::now() - fstart;
+
+    auto pt = std::packaged_task<void()>(simpleTask);
+    auto pstart = ch::high_resolution_clock::now();
+    for (int j = 0; j < TIMES; ++j)
+    {
+        tp.add_task(pt);
+    }
+    auto pdur = ch::high_resolution_clock::now() - pstart;
+
+    std::cout << "Function: " << ch::duration_cast<ch::microseconds>(fdur).count() <<
+    std::endl << "Packaged task: " << ch::duration_cast<ch::microseconds>(pdur).count() << std::endl;
+}
+
+void factorial_test(thread_pool& tp, unsigned long long number)
+{
+    std::packaged_task<boost::multiprecision::cpp_int()> pt(std::bind(mp_factorial, number-1));
     tp.add_task(pt);
-
+    auto fu1 = tp.add_task(mp_factorial, number);
     auto fu2 = pt.get_future();
 
-    cout << fu1.get() << " " << fu2.get() << endl;
+    std::cout << "Results for n & n-1: " << fu1.get() << " " << fu2.get() << std::endl;
+    std::cout << "With " << tp.get_thread_num() << " threads" << std::endl;
+    std::cout << "Type of future: " << boost::typeindex::type_id_with_cvr<decltype(fu1)>().pretty_name() << std::endl;
+}
 
-    cout << tp.get_thread_num() << endl;
+void boost_vs_me_test(thread_pool& tp)
+{ /* TODO */ }
+
+
+int main(void)
+{
+    thread_pool tp(4);
+
+    factorial_test(tp, 6);
+    function_vs_packaged_task_test(tp, 10000);
 
-    cout << "Type of fu1: " << boost::typeindex::type_id_with_cvr<decltype(fu1)>().pretty_name() << endl;
 
     return 0;
 }