From c475ccc380c7a17d088ae6fa17060d39c59ec5d1 Mon Sep 17 00:00:00 2001
From: "Kartik K. Agaram" <vc@akkartik.com>
Date: Thu, 23 Apr 2015 20:42:17 -0700
Subject: 1153 - start of scheduler implementation

This first step is just stopping run() after a fixed number of
instructions. But the scheduler layer isn't done yet.
---
 cpp/038scheduler | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 cpp/038scheduler

(limited to 'cpp/038scheduler')

diff --git a/cpp/038scheduler b/cpp/038scheduler
new file mode 100644
index 00000000..3196795c
--- /dev/null
+++ b/cpp/038scheduler
@@ -0,0 +1,19 @@
+//: Run multiple routines concurrently, without any guarantees on how the
+//: operations in each are interleaved with each other.
+
+:(before "End Globals")
+size_t Scheduling_interval = 500;
+
+//: first, add a deadline to run()
+//: todo: these changes are ugly and brittle
+:(replace{} "void run(recipe_number r)")
+void run(recipe_number r) {
+  run(routine(r), Scheduling_interval);
+}
+:(replace "void run(routine rr)")
+void run(routine rr, size_t time_slice)
+:(replace "while (!done(rr))" following "void run(routine rr, size_t time_slice)")
+size_t ninstrs = 0;
+while (!done(rr) && ninstrs < time_slice)
+:(after "Running One Instruction")
+ninstrs++;
-- 
cgit 1.4.1-2-gfad0