From 461fb98a8c003fc6d19a9ea52d32319f9a40b287 Mon Sep 17 00:00:00 2001
From: redstrate <54911369+redstrate@users.noreply.github.com>
Date: Fri, 5 Feb 2021 19:50:31 -0500
Subject: [PATCH] Quit early if cannot write to thumbnail cache

---
 tools/common/src/commoneditor.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/common/src/commoneditor.cpp b/tools/common/src/commoneditor.cpp
index db6cd70..936dee7 100755
--- a/tools/common/src/commoneditor.cpp
+++ b/tools/common/src/commoneditor.cpp
@@ -1125,6 +1125,10 @@ void CommonEditor::save_thumbnail_cache() {
     GFXBuffer* thumbnailBuffer = engine->get_gfx()->create_buffer(nullptr, thumbnail_resolution * thumbnail_resolution * 4, false, GFXBufferUsage::Storage);
     
     FILE* file = fopen("thumbnail-cache", "wb");
+    if(file == nullptr) {
+        console::error(System::Core, "Failed to write thumbnail cache!");
+        return;
+    }
     
     int size = asset_thumbnails.size();
     fwrite(&size, sizeof(int), 1, file);