From 47aaae2c42d554963fb811b68fdf28c9743598e8 Mon Sep 17 00:00:00 2001
From: Stefan Zabka <zabkaste@hu-berlin.de>
Date: Wed, 10 Jun 2020 17:10:02 +0200
Subject: Starting threadpool

---
 04_exercise/main.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 04_exercise/main.c

(limited to '04_exercise/main.c')

diff --git a/04_exercise/main.c b/04_exercise/main.c
new file mode 100644
index 0000000..cdcaa42
--- /dev/null
+++ b/04_exercise/main.c
@@ -0,0 +1,27 @@
+#include "threadpool.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+static TASK(long, fib, long);
+
+long fib(long n) {
+	if (n <= 1)
+		return n;
+	
+	fib_fut *a = fibAsync((fib_fut[]) { fibFuture(n - 1) });
+	fib_fut *b = fibAsync((fib_fut[]) { fibFuture(n - 2) });
+	
+	return fibAwait(a) + fibAwait(b);
+}
+
+int main() {
+	if (tpInit(8) != 0)
+		perror("Thread Pool initialization failed"), exit(-1);
+	atexit(&tpRelease);
+	
+	for (long i = 0; i <= 20; ++i)
+		printf("fib(%2li) = %li\n", i, fib(i));
+	
+	return 0;
+}
-- 
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