src: Use user-defined literals for time (hours and minutes)

src/HttpServer.cc

@@ -100,8 +100,8 @@ template <typename Array> void append_nv(Stream *stream, const Array &nva) {
 } // namespace
 
 Config::Config()
-    : stream_read_timeout(60.), stream_write_timeout(60.), data_ptr(nullptr),
-      padding(0), num_worker(1), max_concurrent_streams(100),
+    : stream_read_timeout(1_min), stream_write_timeout(1_min),
+      data_ptr(nullptr), padding(0), num_worker(1), max_concurrent_streams(100),
       header_table_size(-1), port(0), verbose(false), daemon(false),
       verify_client(false), no_tls(false), error_gzip(false),
       early_response(false), hexdump(false), echo_upload(false) {}

src/shrpx.cc

@@ -710,8 +710,7 @@ int event_loop() {
     }
     if (auto_tls_ticket_key) {
       // Renew ticket key every 12hrs
-      ev_timer_init(&renew_ticket_key_timer, renew_ticket_key_cb, 0.,
-                    12 * 3600.);
+      ev_timer_init(&renew_ticket_key_timer, renew_ticket_key_cb, 0., 12_h);
       renew_ticket_key_timer.data = conn_handler.get();
       ev_timer_again(loop, &renew_ticket_key_timer);
 
@@ -831,16 +830,16 @@ void fill_default_config() {
   mod_config()->cert_file = nullptr;
 
   // Read timeout for HTTP2 upstream connection
-  mod_config()->http2_upstream_read_timeout = 180.;
+  mod_config()->http2_upstream_read_timeout = 3_min;
 
   // Read timeout for non-HTTP2 upstream connection
-  mod_config()->upstream_read_timeout = 180.;
+  mod_config()->upstream_read_timeout = 3_min;
 
   // Write timeout for HTTP2/non-HTTP2 upstream connection
   mod_config()->upstream_write_timeout = 30.;
 
   // Read/Write timeouts for downstream connection
-  mod_config()->downstream_read_timeout = 180.;
+  mod_config()->downstream_read_timeout = 3_min;
   mod_config()->downstream_write_timeout = 30.;
 
   // Read timeout for HTTP/2 stream
@@ -951,7 +950,7 @@ void fill_default_config() {
   mod_config()->host_unix = false;
   mod_config()->http2_downstream_connections_per_worker = 0;
   // ocsp update interval = 14400 secs = 4 hours, borrowed from h2o
-  mod_config()->ocsp_update_interval = 14400.;
+  mod_config()->ocsp_update_interval = 4_h;
   mod_config()->fetch_ocsp_response_file =
       strcopy(PKGDATADIR "/fetch-ocsp-response");
   mod_config()->no_ocsp = false;

src/template.h

@@ -145,6 +145,8 @@ template <typename T> void dlist_delete_all(DList<T> &dl) {
   }
 }
 
+// User-defined literals for K, M, and G (powers of 1024)
+
 constexpr unsigned long long operator"" _k(unsigned long long k) {
   return k * 1024;
 }
@@ -157,6 +159,12 @@ constexpr unsigned long long operator"" _g(unsigned long long g) {
   return g * 1024 * 1024 * 1024;
 }
 
+// User-defined literals for time, converted into double in seconds
+
+constexpr double operator"" _h(unsigned long long h) { return h * 60 * 60; }
+
+constexpr double operator"" _min(unsigned long long min) { return min * 60; }
+
 } // namespace nghttp2
 
 #endif // TEMPLATE_H