From 6d8526d4fe48a92012ea94b96c27a9efcdef0f5b Mon Sep 17 00:00:00 2001
From: Joseph Coffland <joseph@cauldrondevelopment.com>
Date: Tue, 27 Nov 2018 17:42:16 -0800
Subject: [PATCH] Run simulation at low process priority.

---
 CHANGELOG.md          | 1 +
 src/py/bbctrl/plan.py | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f75effb..3c74a3e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ Buildbotics CNC Controller Firmware Changelog
  - Removed tool-reversed option.  Use tool-direction-mode instead.
  - Handle zero length dwell correctly.
  - Fixed problem with cached GCode file upload when file changed on disk.
+ - Run simulation at low process priority.
 
 ## v0.4.1
  - Fix toolpath view axes bug.
diff --git a/src/py/bbctrl/plan.py b/src/py/bbctrl/plan.py
index dffaf82..d3e84a0 100755
--- a/src/py/bbctrl/plan.py
+++ b/src/py/bbctrl/plan.py
@@ -333,11 +333,14 @@ parser.add_argument('--max-time', default = 600,
                     type = int, help = 'Maximum planning time in seconds')
 parser.add_argument('--max-loop', default = 30,
                     type = int, help = 'Maximum time in loop in seconds')
+parser.add_argument('--priority', default = 1,
+                    type = int, help = 'Set "nice" process priority')
 
 args = parser.parse_args()
 
 state = json.loads(args.state)
 config = json.loads(args.config)
 
+os.nice(args.priority)
 plan = Plan(args.gcode, state, config)
 plan.run()
-- 
2.27.0