From 80a11e8cbef249b5c2f347acd692419a0b4fd72a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Rydg=C3=A5rd?= <hrydgard@gmail.com>
Date: Mon, 12 May 2025 13:33:27 +0200
Subject: [PATCH] Add sleep_random function for debugging purposes

---
 Common/TimeUtil.cpp | 9 +++++++++
 Common/TimeUtil.h   | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/Common/TimeUtil.cpp b/Common/TimeUtil.cpp
index 1f16898d18..8522109d66 100644
--- a/Common/TimeUtil.cpp
+++ b/Common/TimeUtil.cpp
@@ -4,6 +4,7 @@
 #include <cstdint>
 
 #include "Common/TimeUtil.h"
+#include "Common/Data/Random/Rng.h"
 #include "Common/Log.h"
 
 #ifdef HAVE_LIBNX
@@ -339,3 +340,11 @@ void GetCurrentTimeFormatted(char formattedTime[13]) {
 	// Now tack on the milliseconds
 	snprintf(formattedTime, 11, "%s:%03u", tmp, milliseconds % 1000);
 }
+
+// We don't even bother synchronizing this, it's fine if threads stomp a bit.
+static GMRng g_sleepRandom;
+
+void sleep_random(double minSeconds, double maxSeconds) {
+	const double waitSeconds = minSeconds + (maxSeconds - minSeconds) * g_sleepRandom.F();
+	sleep_precise(waitSeconds);
+}
diff --git a/Common/TimeUtil.h b/Common/TimeUtil.h
index 2d33b5b954..f300cbdea5 100644
--- a/Common/TimeUtil.h
+++ b/Common/TimeUtil.h
@@ -25,6 +25,9 @@ void sleep_ms(int ms, const char *reason);
 // Precise sleep. Can consume a little bit of CPU on Windows at least.
 void sleep_precise(double seconds);
 
+// Random sleep, used for debugging.
+void sleep_random(double minSeconds, double maxSeconds);
+
 // Yield. Signals that this thread is busy-waiting but wants to allow other hyperthreads to run.
 void yield();