Limit max async queue size to 250,000 entries

bench/async_bench.cpp

@@ -66,10 +66,6 @@ int main(int argc, char *argv[]) {
         if (argc > 2) threads = atoi(argv[2]);
         if (argc > 3) {
             queue_size = atoi(argv[3]);
-            if (queue_size > 500000) {
-                spdlog::error("Max queue size allowed: 500,000");
-                exit(1);
-            }
         }
 
         if (argc > 4) iters = atoi(argv[4]);
@@ -79,6 +75,13 @@ int main(int argc, char *argv[]) {
             exit(1);
         }
 
+        constexpr int max_q_size = sinks::async_sink::max_queue_size;
+        if(queue_size > max_q_size)
+        {
+            spdlog::error("Queue size too large. Max queue size is {:L}", max_q_size);
+            exit(1);
+        }
+
         auto slot_size = sizeof(details::async_log_msg);
         spdlog::info("-------------------------------------------------");
         spdlog::info("Messages     : {:L}", howmany);

include/spdlog/sinks/async_sink.h

@@ -31,7 +31,7 @@ public:
         discard_new      // Discard the log message if the queue is full
     };
 
-    enum { default_queue_size = 8192, max_queue_size = 10 * 1024 * 1024 };
+    enum { default_queue_size = 8192, max_queue_size = 250'000};
 
     struct config {
         size_t queue_size = default_queue_size;