1 files changed, 22 insertions, 0 deletions
diff --git a/src/library_browser.js b/src/library_browser.js
index 673f1ff4..fb2fa16b 100644
--- a/src/library_browser.js
+++ b/src/library_browser.js
@@ -402,6 +402,28 @@ mergeInto(LibraryManager.library, {
     return 0;
   },
 
+  emscripten_async_prepare_data: function(data, size, suffix, onload, onerror) {
+    var _suffix = Pointer_stringify(suffix);
+    if (!Browser.asyncPrepareDataCounter) Browser.asyncPrepareDataCounter = 0;
+    var name = 'prepare_data_' + (Browser.asyncPrepareDataCounter++) + '.' + _suffix;
+    var cname = _malloc(name.length+1);
+    writeStringToMemory(name, cname);
+    FS.createPreloadedFile(
+      '',
+      name,
+      {{{ makeHEAPView('U8', 'data', 'data + size') }}},
+      true, true,
+      function() {
+        if (onload) FUNCTION_TABLE[onload](data, cname);
+      },
+      function() {
+        if (onerror) FUNCTION_TABLE[onerror](data);
+      },
+      true // don'tCreateFile - it's already there
+    );
+    return 0;
+  },
+
   emscripten_async_run_script__deps: ['emscripten_run_script'],
   emscripten_async_run_script: function(script, millis) {
     Module['noExitRuntime'] = true;