Method test_preload_module

test/test_other.py:14447–14500

(self, args)

    'pthread': (['-g', '-pthread', '-Wno-experimental', '-sPROXY_TO_PTHREAD', '-sEXIT_RUNTIME'],),
  })
  def test_preload_module(self, args):
    if '-pthread' in args:
      self.require_pthreads()
    # TODO(sbc): This test is copyied from test_browser.py.  Perhaps find a better way to
    # share code between them.
    create_file('library.c', r'''
      #include <stdio.h>
      int library_func() {
        return 42;
      }
    ''&#x27;)
    self.run_process([EMCC, 'library.c', '-sSIDE_MODULE', '-o', 'tmp.so'] + args)
    create_file('main.c', r''&#x27;
      #include <assert.h>
      #include <dlfcn.h>
      #include <stdio.h>
      #include <sys/stat.h>
      #include <emscripten.h>
      #include <emscripten/threading.h>

      int main() {
        // Check the file exists in the VFS
        struct stat statbuf;
        assert(stat("/library.so", &statbuf) == 0);

        // Check that it was preloaded.
        // The preloading actually only happens on the main thread where the filesystem
        // lives.  On worker threads the module object is shared via sharedModules.
        if (emscripten_is_main_runtime_thread()) {
          int found = EM_ASM_INT(
            return preloadedWasm['/library.so'] !== undefined;
          );
          assert(found);
        } else {
          int found = EM_ASM_INT(
            err('sharedModules:', sharedModules);
            return sharedModules['/library.so'] !== undefined;
          );
          assert(found);
        }
        void *lib_handle = dlopen("/library.so", RTLD_NOW);
        assert(lib_handle);
        typedef int (*voidfunc)();
        voidfunc x = (voidfunc)dlsym(lib_handle, "library_func");
        assert(x);
        assert(x() == 42);
        printf("done\n");
        return 0;
      }
    ''&#x27;)
    expected = 'done\n'
    if '-pthread' in args:
      expected = "sharedModules: { '/library.so': Module [WebAssembly.Module] {} }\ndone\n"
    self.do_runf('main.c', expected, cflags=['-sMAIN_MODULE=2', '--preload-file', 'tmp.so@library.so', '--use-preload-plugins'] + args)

  @requires_pthreads
  def test_standalone_whole_archive(self):