Added duration in profiler output

docs/index.html

@@ -39,6 +39,7 @@
     <div id="code-info" class="editor-info"></div>
   </div>
 </div>
+<div id="overlay"></div>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.4.2/ace.js"></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
 <script src="index.js"></script>

docs/index.js

@@ -72,7 +72,6 @@ function parse() {
 
   const optimazationMode = $('#opt-mode').val();
   const packrat = $('#packrat').prop('checked');
-  const autoRefresh = $('#auto-refresh').prop('checked');
 
   $grammarInfo.html('');
   $grammarValidation.hide();
@@ -87,7 +86,19 @@ function parse() {
   }
 
   const mode = optimazationMode == 'all';
+
+  $('#overlay').css({
+    'z-index': '1',
+    'display': 'block',
+    'background-color': 'rgba(0, 0, 0, 0.1)'
+  });
+  window.setTimeout(() => {
     const data = JSON.parse(Module.lint(grammarText, codeText, mode, packrat));
+      $('#overlay').css({
+        'z-index': '-1',
+        'display': 'none',
+        'background-color': 'rgba(1, 1, 1, 1.0)'
+      });
 
     if (data.grammar_valid) {
       $grammarValidation.removeClass('validation-invalid').show();
@@ -114,6 +125,7 @@ function parse() {
       const html = generateErrorListHTML(data.grammar);
       $grammarInfo.html(html);
     }
+  }, 0);
 }
 
 // Event handing for text editiing
@@ -190,6 +202,8 @@ $('#main').css({
 var Module = {
   onRuntimeInitialized: function() {
     // Initial parse
+    if ($('#auto-refresh').prop('checked')) {
       parse();
     }
+  }
 };

docs/style.css

@@ -13,6 +13,7 @@ body {
 #main {
   flex: 1;
   display: none;
+  z-index: 0;
 }
 .editor-container {
   flex: 1;
@@ -90,3 +91,11 @@ body {
 .show-toggle {
   margin-right: 6px;
 }
+#overlay {
+  position: absolute;
+  width: 100vw;
+  height: 100vh;
+  cursor: wait;
+  display: none;
+  z-index: -1;
+}

peglib.h

@@ -4563,6 +4563,7 @@ inline void enable_profiling(parser &parser, std::ostream &os) {
     std::vector<Item> items;
     std::map<std::string, size_t> index;
     size_t total = 0;
+    std::chrono::steady_clock::time_point start;
   };
 
   parser.enable_trace(
@@ -4593,8 +4594,14 @@ inline void enable_profiling(parser &parser, std::ostream &os) {
           }
 
           if (index == 0) {
-            char buff[BUFSIZ];
+            auto end = std::chrono::steady_clock::now();
+            auto µs = std::chrono::duration_cast<std::chrono::microseconds>(
+                          end - stats.start)
+                          .count();
+            auto s = µs / 1000000.0;
+            os << "duration: " << s << "s (" << µs << "µs)" << std::endl << std::endl;
 
+            char buff[BUFSIZ];
             size_t total_success = 0;
             size_t total_fail = 0;
             for (auto &[name, success, fail] : stats.items) {
@@ -4614,7 +4621,8 @@ inline void enable_profiling(parser &parser, std::ostream &os) {
             sprintf(buff, "%4s  %10s  %5s  %10.2f  %10.2f  %s", "", "", "",
                     total_success * 100.0 / grand_total,
                     total_fail * 100.0 / grand_total, "% success/fail");
-            os << buff << std::endl;
+            os << buff << std::endl << std::endl;
+            ;
 
             size_t id = 0;
             for (auto &[name, success, fail] : stats.items) {
@@ -4628,7 +4636,11 @@ inline void enable_profiling(parser &parser, std::ostream &os) {
           }
         }
       },
-      [&](auto &trace_data) { trace_data = new Stats{}; },
+      [&](auto &trace_data) {
+        auto stats = new Stats{};
+        stats->start = std::chrono::steady_clock::now();
+        trace_data = stats;
+      },
       [&](auto &trace_data) {
         auto stats = std::any_cast<Stats *>(trace_data);
         delete stats;