From dec8fd24bd240ca617140eb64e339e78b4f3d5db Mon Sep 17 00:00:00 2001
From: Matthew Chen <matthew@signal.org>
Date: Wed, 27 Oct 2021 15:37:53 -0300
Subject: [PATCH] Warn about memory usage.

---
 SignalServiceKit/src/Util/LocalDevice.swift | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/SignalServiceKit/src/Util/LocalDevice.swift b/SignalServiceKit/src/Util/LocalDevice.swift
index 841e546122..300c77d65b 100644
--- a/SignalServiceKit/src/Util/LocalDevice.swift
+++ b/SignalServiceKit/src/Util/LocalDevice.swift
@@ -47,6 +47,12 @@ public class LocalDevice: NSObject {
         guard let memoryUsageUInt64 = self.memoryUsageUInt64 else {
             return "Unknown"
         }
-        return "\(memoryUsageUInt64)"
+        let nseMemoryUsageWarn: UInt64 = 24 * 1000 * 1000
+        if CurrentAppContext().isNSE,
+           memoryUsageUInt64 > nseMemoryUsageWarn {
+            return "\(memoryUsageUInt64) ⚠️⚠️⚠️"
+        } else {
+            return "\(memoryUsageUInt64)"
+        }
     }
 }