From 4a84a1fe849e68a2e19846744f9830daf2fb49db Mon Sep 17 00:00:00 2001
From: "Stephen M. McQuay" <smcquay@fusionio.com>
Date: Fri, 25 May 2012 10:06:00 -0600
Subject: [PATCH] added sources and a quote to notes

---
 notes.rst  |  2 ++
 thread.cc  | 13 ++++++-------
 thread2.cc | 11 ++++++-----
 3 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/notes.rst b/notes.rst
index 9648bbf..5a37324 100644
--- a/notes.rst
+++ b/notes.rst
@@ -75,6 +75,7 @@ regular expressions and threading
 
 - this is where the burning starts to set in ...
 - threading works ... mostly
+    - `great quote`_
     - compiles and runs with both compilers
     - run stress
 - regex examples
@@ -83,6 +84,7 @@ regular expressions and threading
         - instructions on building this found `here`_
 
 .. _`here`: http://solarianprogrammer.com/2011/10/16/llvm-clang-libc-linux/
+.. _`great quote`: https://twitter.com/nedbat/status/194452404794691584
 
 constexpr
 =========
diff --git a/thread.cc b/thread.cc
index 2362fec..e84f2a7 100644
--- a/thread.cc
+++ b/thread.cc
@@ -1,18 +1,17 @@
+// based on: http://solarianprogrammer.com/2011/12/16/cpp-11-thread-tutorial/
 #include <iostream>
 #include <thread>
 
-//This function will be called from a thread
-
 void call_from_thread() {
-    std::cout << "Hello, World" << std::endl;
+    std::cout << "sleeping in the thread" << std::endl;
+    std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+    std::cout << "finishing in thread" << std::endl;
 }
 
 int main() {
-    //Launch a thread
     std::thread t1(call_from_thread);
-
-    //Join the thread with the main thread
+    std::cout << "printing from original thread" << std::endl;
     t1.join();
-
+    std::cout << "after join" << std::endl;
     return 0;
 }
diff --git a/thread2.cc b/thread2.cc
index 14ce632..2041624 100644
--- a/thread2.cc
+++ b/thread2.cc
@@ -1,25 +1,26 @@
+// from: http://solarianprogrammer.com/2011/12/16/cpp-11-thread-tutorial/
 #include <iostream>
 #include <thread>
 
-static const int num_threads = 10;
-
-//This function will be called from a thread
+static const int num_threads = 8;
 
 void call_from_thread(int tid) {
     std::cout << "Launched by thread " << tid << std::endl;
+    double x = 1.0;
+    for(int i = 0; i < 2E9; i++) {
+        x /= 2;
+    }
 }
 
 int main() {
     std::thread t[num_threads];
 
-    //Launch a group of threads
     for (int i = 0; i < num_threads; ++i) {
         t[i] = std::thread(call_from_thread, i);
     }
 
     std::cout << "Launched from the main\n";
 
-    //Join the threads with the main thread
     for (int i = 0; i < num_threads; ++i) {
         t[i].join();
     }