add parameter to emscripten_set_main_loop to optionally simulate an infinite loop by throwing an exception (like glutMainLoop)

1 files changed, 5 insertions, 1 deletions

diff --git a/src/library_browser.js b/src/library_browser.js
index 6985e04a..fc8cb84c 100644
--- a/src/library_browser.js
+++ b/src/library_browser.js
@@ -402,7 +402,7 @@ mergeInto(LibraryManager.library, {
     }, millis);
   },
 
-  emscripten_set_main_loop: function(func, fps) {
+  emscripten_set_main_loop: function(func, fps, simulateInfiniteLoop) {
     Module['noExitRuntime'] = true;
 
     var jsFunc = FUNCTION_TABLE[func];
@@ -462,6 +462,10 @@ mergeInto(LibraryManager.library, {
       }
     }
     Browser.mainLoop.scheduler();
+
+    if (simulateInfiniteLoop) {
+      throw 'emscripten_set_main_loop simulating infinite loop by throwing so we get right into the JS event loop';
+    }
   },
 
   emscripten_cancel_main_loop: function() {