From a8ce516a6471ab1bd961fca61766dbe3fb2cc2f1 Mon Sep 17 00:00:00 2001
From: Knut Ahlers <knut@ahlers.me>
Date: Fri, 26 Feb 2021 23:16:40 +0100
Subject: [PATCH] Prevent system crash by too fast executions

Signed-off-by: Knut Ahlers <knut@ahlers.me>
---
 cmd/streamdeck/display_exec.go        | 9 ++++++++-
 cmd/streamdeck/display_pulsevolume.go | 8 +++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/cmd/streamdeck/display_exec.go b/cmd/streamdeck/display_exec.go
index ac83f26..21440e1 100644
--- a/cmd/streamdeck/display_exec.go
+++ b/cmd/streamdeck/display_exec.go
@@ -114,7 +114,14 @@ func (d displayElementExec) Display(ctx context.Context, idx int, attributes att
 }
 
 func (d displayElementExec) NeedsLoop(attributes attributeCollection) bool {
-	return attributes.Interval > 0
+	if attributes.Interval > 0 && attributes.Interval < 100*time.Millisecond {
+		log.WithFields(log.Fields{
+			"tpye":     "exec",
+			"interval": attributes.Interval,
+		}).Warn("Ignoring interval below 100ms")
+	}
+
+	return attributes.Interval > 100*time.Millisecond
 }
 
 func (d *displayElementExec) StartLoopDisplay(ctx context.Context, idx int, attributes attributeCollection) error {
diff --git a/cmd/streamdeck/display_pulsevolume.go b/cmd/streamdeck/display_pulsevolume.go
index c551e3d..8ce8f5f 100644
--- a/cmd/streamdeck/display_pulsevolume.go
+++ b/cmd/streamdeck/display_pulsevolume.go
@@ -118,8 +118,14 @@ func (d displayElementPulseVolume) NeedsLoop(attributes attributeCollection) boo
 
 func (d *displayElementPulseVolume) StartLoopDisplay(ctx context.Context, idx int, attributes attributeCollection) error {
 	interval := time.Second
-	if attributes.Interval > 0 {
+	if attributes.Interval > 100*time.Millisecond {
 		interval = attributes.Interval
+	} else if attributes.Interval > 0 {
+		log.WithFields(log.Fields{
+			"tpye":     "pulsevolume",
+			"idx":      idx,
+			"interval": attributes.Interval,
+		}).Warn("Ignoring interval below 100ms")
 	}
 
 	go func() {