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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ppapi/c/pp_errors.h"
      6 #include "ppapi/c/private/ppb_testing_private.h"
      7 #include "ppapi/native_client/tests/ppapi_test_lib/get_browser_interface.h"
      8 #include "ppapi/native_client/tests/ppapi_test_lib/testable_callback.h"
      9 
     10 TestableCallback::TestableCallback(PP_Instance instance, bool force_async)
     11     : have_result_(false),
     12       result_(PP_OK_COMPLETIONPENDING),
     13       force_async_(force_async),
     14       post_quit_task_(false),
     15       run_count_(0),
     16       instance_(instance) {
     17 }
     18 
     19 int32_t TestableCallback::WaitForResult() {
     20   if (!have_result_) {
     21     result_ = PP_OK_COMPLETIONPENDING;  // Reset
     22     post_quit_task_ = true;
     23 
     24     // This waits until PPBTestingDev()->QuitMessageLoop() is called
     25     // by the "Handler" which represents the actual callback code.
     26     PPBTestingPrivate()->RunMessageLoop(instance_);
     27   }
     28   have_result_ = false;
     29   return result_;
     30 }
     31 
     32 PP_CompletionCallback TestableCallback::GetCallback() {
     33   int32_t flags = force_async_ ? 0 : PP_COMPLETIONCALLBACK_FLAG_OPTIONAL;
     34   PP_CompletionCallback cc =
     35     PP_MakeCompletionCallback(&TestableCallback::Handler, this);
     36   cc.flags = flags;
     37   return cc;
     38 }
     39 
     40 // static, so we can take it's address
     41 // This is the actual callback, all it does is record
     42 // the result and wake up whoever is block on
     43 // "WaitForResult"
     44 void TestableCallback::Handler(void* user_data, int32_t result) {
     45   TestableCallback* callback = static_cast<TestableCallback*>(user_data);
     46   callback->result_ = result;
     47   callback->have_result_ = true;
     48   ++callback->run_count_;
     49   if (callback->post_quit_task_) {
     50     callback->post_quit_task_ = false;
     51     PPBTestingPrivate()->QuitMessageLoop(callback->instance_);
     52   }
     53 }
     54