Decrelment keepalive counter in emscripten_clear_timeout

This change also cleans up the emscripten tests relating to the event
loop.  The browser tests were only being run in `PROXY_TO_PTHREAD` mode
for some reason even though these tests should pass on the main thread.

In test_other the `PROXY_TO_PTHREAD` flags were being passed as args
(rather then emcc_args).  Likely a copy/paste bug.

Author: sbc100

src/lib/libeventloop.js

@@ -21,6 +21,13 @@ LibraryJSEventLoop = {
     }, timeout);
   },
 
+  $safeClearTimeout: (id) => {
+    // TODO: Track outstanding timeout IDs so that we can avoid calling
+    // runtimeKeepalivePop trice for the same timeout.
+    {{{ runtimeKeepalivePop() }}}
+    clearTimeout(id);
+  },
+
   // Just like setImmediate but returns an i32 that can be passed back
   // to wasm rather than a JS object.
   $setImmediateWrapped: (func) => {
@@ -119,13 +126,7 @@ LibraryJSEventLoop = {
   emscripten_set_timeout: (cb, msecs, userData) =>
     safeSetTimeout(() => {{{ makeDynCall('vp', 'cb') }}}(userData), msecs),
 
-#if AUDIO_WORKLET
-  // Use a wrapper function here since simply aliasing `clearTimeout` would
-  // cause the module to fail to load in the audio worklet context.
-  emscripten_clear_timeout: (id) => clearTimeout(id),
-#else
-  emscripten_clear_timeout: 'clearTimeout',
-#endif
+  emscripten_clear_timeout: '$safeClearTimeout',
 
   emscripten_set_timeout_loop__deps: ['$callUserCallback', 'emscripten_get_now'],
   emscripten_set_timeout_loop: (cb, msecs, userData) => {

src/lib/libsdl.js

@@ -3579,9 +3579,10 @@ var LibrarySDL = {
       () => {{{ makeDynCall('iip', 'callback') }}}(interval, param),
       interval),
 
+  SDL_RemoveTimer__deps: ['$safeClearTimeout'],
   SDL_RemoveTimer__proxy: 'sync',
   SDL_RemoveTimer: (id) => {
-    clearTimeout(id);
+    safeClearTimeout(id);
     return true;
   },
 

test/emscripten_performance_now.c

@@ -12,9 +12,7 @@ void test(void *userData) {
   double now3 = emscripten_date_now();
   assert(now3 >= dateNow + 100);
 
-#ifdef REPORT_RESULT
-  REPORT_RESULT(0);
-#endif
+  exit(0);
 }
 
 int main() {
@@ -30,4 +28,5 @@ int main() {
 #else
   emscripten_set_timeout(test, 200, 0);
 #endif
+  return 99;
 }

test/emscripten_set_interval.c

@@ -7,6 +7,7 @@
 int funcExecuted = 0;
 
 void testDone(void *userData) {
+  printf("testDone\n");
   assert((long)userData == 2);
   assert(funcExecuted == 10);
   exit(0);
@@ -15,6 +16,7 @@ void testDone(void *userData) {
 long intervalId = 0;
 
 void tick(void *userData) {
+  printf("tick: %d\n", funcExecuted);
   assert((long)userData == 1);
   ++funcExecuted;
   if (funcExecuted == 10) {
@@ -28,6 +30,5 @@ void tick(void *userData) {
 
 int main() {
   intervalId = emscripten_set_interval(tick, 100, (void*)1);
-  emscripten_exit_with_live_runtime();
   return 99;
 }

test/emscripten_set_timeout.c

@@ -1,34 +1,35 @@
 #include <emscripten/emscripten.h>
 #include <emscripten/html5.h>
-#include <emscripten/em_asm.h>
 #include <assert.h>
 #include <stdlib.h>
+#include <stdio.h>
 
 int func1Executed = 0;
 int func2Executed = 0;
 
 void func1(void *userData);
 
 void func2(void *userData) {
+  printf("func2: %d\n", func2Executed);
   assert((long)userData == 2);
   ++func2Executed;
 
-  if (func2Executed == 1)
-  {
+  if (func2Executed == 1) {
     // Test canceling a setTimeout: register a callback but then cancel it immediately
     long id = emscripten_set_timeout(func1, 10, (void*)2);
     emscripten_clear_timeout(id);
 
     emscripten_set_timeout(func2, 100, (void*)2);
   }
-  if (func2Executed == 2)
-  {
+
+  if (func2Executed == 2) {
     assert(func1Executed == 1);
     exit(0);
   }
 }
 
 void func1(void *userData) {
+  printf("func1\n");
   assert((long)userData == 1);
   ++func1Executed;
 
@@ -39,6 +40,5 @@ void func1(void *userData) {
 
 int main() {
   emscripten_set_timeout(func1, 100, (void*)1);
-  emscripten_exit_with_live_runtime();
   return 99;
 }

test/emscripten_set_timeout_loop.c

@@ -1,32 +1,34 @@
 #include <emscripten/emscripten.h>
 #include <emscripten/html5.h>
-#include <emscripten/em_asm.h>
 #include <assert.h>
 #include <stdlib.h>
+#include <stdio.h>
 
 double previousSetTimeouTime = 0;
 int funcExecuted = 0;
 
 void testDone(void *userData) {
+  printf("testDone\n");
   assert((long)userData == 2);
   assert(funcExecuted == 10);
+  emscripten_runtime_keepalive_pop();
   exit(0);
 }
 
 bool tick(double time, void *userData) {
+  printf("tick: %d\n", funcExecuted);
   assert(time >= previousSetTimeouTime);
   previousSetTimeouTime = time;
   assert((long)userData == 1);
   ++funcExecuted;
-  if (funcExecuted == 10)
-  {
+  if (funcExecuted == 10) {
     emscripten_set_timeout(testDone, 300, (void*)2);
   }
   return funcExecuted < 10;
 }
 
 int main() {
   emscripten_set_timeout_loop(tick, 100, (void*)1);
-  emscripten_exit_with_live_runtime();
+  emscripten_runtime_keepalive_push();
   return 99;
 }

test/other/codesize/test_codesize_hello_O0.gzsize

@@ -1 +1 @@
-7984
+7989

test/other/codesize/test_codesize_hello_O0.jssize

@@ -1 +1 @@
-21327
+21344

test/other/codesize/test_codesize_minimal_O0.gzsize

@@ -1 +1 @@
-6330
+6336

test/other/codesize/test_codesize_minimal_O0.jssize

@@ -1 +1 @@
-16673
+16690