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

1 files changed, 41 insertions, 0 deletions

diff --git a/tests/emscripten_api_browser_infloop.cpp b/tests/emscripten_api_browser_infloop.cpp
new file mode 100644
index 00000000..0fd41922
--- /dev/null
+++ b/tests/emscripten_api_browser_infloop.cpp
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <string.h>
+#include <emscripten.h>
+
+struct Class {
+  static Class *instance;
+
+  int x;
+
+  Class() : x(0) {}
+
+  void print() {
+    char buf[18];
+    memset(buf, 0, 18); // clear stack. if we did not simulate infinite loop, this clears x and is a bug!
+    x += buf[7];
+
+    printf("waka %d\n", x++);
+
+    if (x == 7) {
+      int result = x;
+      REPORT_RESULT();
+    }
+  }
+
+  static void callback() {
+    instance->print();
+  }
+
+  void start() {
+    instance = this;
+    emscripten_set_main_loop(Class::callback, 3, 1); // important if we simulate an infinite loop here or not
+  }
+};
+
+Class *Class::instance = NULL;
+
+int main() {
+  Class().start();
+  return 1;
+}
+