Use Persistent::Reset.
[chromium-blink-merge.git] / ppapi / native_client / tests / ppapi_test_lib / testable_callback.h
blobb474710fb1edc16a13bd771aade13cb949aeb862
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.
5 #ifndef NATIVE_CLIENT_TESTS_PPAPI_TEST_LIB_TESTABLE_CALLBACK_H
6 #define NATIVE_CLIENT_TESTS_PPAPI_TEST_LIB_TESTABLE_CALLBACK_H
8 #include "ppapi/c/pp_completion_callback.h"
9 #include "ppapi/c/pp_instance.h"
10 #include "ppapi/c/pp_stdint.h"
12 // NOTE: if you use you TestableCallback you will need to enable
13 // testing interfaces in PPAPIBrowserTester(), e.g.
14 // "--enable-pepper-testing", c.f.
15 // tests/ppapi_browser/ppb_graphics2d/nacl.scons
17 // Example Usage:
19 // void TestProgressSimple() {
20 // TestableCallback callback(pp_instance(), true);
21 // ...
22 // rv = PPBURLLoader()->Open(loader, request, callback.GetCallback());
23 // EXPECT(rv == PP_OK_COMPLETIONPENDING);
25 // rv = callback.WaitForResult();
26 // EXPECT(rv == PP_OK);
27 // ...
28 // }
30 class TestableCallback {
31 public:
32 TestableCallback(PP_Instance instance, bool force_async);
34 // Get the callback to be passed to an asynchronous PPAPI call
35 PP_CompletionCallback GetCallback();
37 // Waits for the callback to be called and returns the
38 // result. Returns immediately if the callback was previously called
39 // and the result wasn't returned (i.e. each result value received
40 // by the callback is returned by WaitForResult() once and only
41 // once).
42 int32_t WaitForResult();
44 bool HasRun() const { return run_count_ != 0; }
46 // Make instance runnable again.
47 void Reset() {
48 run_count_ = 0;
49 have_result_ = false;
52 int32_t Result() const { return result_; }
54 private:
55 static void Handler(void* user_data, int32_t result);
57 bool have_result_; // is a result available?
58 int32_t result_; // value of the result
59 bool force_async_; // force callback to be always called
60 bool post_quit_task_; // has cleanup beem performed
61 unsigned run_count_; // number of times the callback has been called
62 PP_Instance instance_;
65 #endif // NATIVE_CLIENT_TESTS_PPAPI_TEST_LIB_TESTABLE_CALLBACK_H