bench: surround main() execution with try/catch

so we have a cleaner exit on internal runtime errors.
e.g. an unknown priority level.

Author: furszy

src/bench/bench_bitcoin.cpp

@@ -118,17 +118,22 @@ int main(int argc, char** argv)
         return EXIT_SUCCESS;
     }
 
-    benchmark::Args args;
-    args.asymptote = parseAsymptote(argsman.GetArg("-asymptote", ""));
-    args.is_list_only = argsman.GetBoolArg("-list", false);
-    args.min_time = std::chrono::milliseconds(argsman.GetIntArg("-min-time", DEFAULT_MIN_TIME_MS));
-    args.output_csv = argsman.GetPathArg("-output-csv");
-    args.output_json = argsman.GetPathArg("-output-json");
-    args.regex_filter = argsman.GetArg("-filter", DEFAULT_BENCH_FILTER);
-    args.sanity_check = argsman.GetBoolArg("-sanity-check", false);
-    args.priority = parsePriorityLevel(argsman.GetArg("-priority-level", DEFAULT_PRIORITY));
+    try {
+        benchmark::Args args;
+        args.asymptote = parseAsymptote(argsman.GetArg("-asymptote", ""));
+        args.is_list_only = argsman.GetBoolArg("-list", false);
+        args.min_time = std::chrono::milliseconds(argsman.GetIntArg("-min-time", DEFAULT_MIN_TIME_MS));
+        args.output_csv = argsman.GetPathArg("-output-csv");
+        args.output_json = argsman.GetPathArg("-output-json");
+        args.regex_filter = argsman.GetArg("-filter", DEFAULT_BENCH_FILTER);
+        args.sanity_check = argsman.GetBoolArg("-sanity-check", false);
+        args.priority = parsePriorityLevel(argsman.GetArg("-priority-level", DEFAULT_PRIORITY));
 
-    benchmark::BenchRunner::RunAll(args);
+        benchmark::BenchRunner::RunAll(args);
 
-    return EXIT_SUCCESS;
+        return EXIT_SUCCESS;
+    } catch (const std::exception& e) {
+        tfm::format(std::cerr, "Error: %s\n", e.what());
+        return EXIT_FAILURE;
+    }
 }