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Unified Diff: mojo/edk/system/wait_set_dispatcher_unittest.cc

Issue 2744943002: Mojo: Move waiting APIs to public library (Closed)
Patch Set: . Created 3 years, 9 months ago
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Index: mojo/edk/system/wait_set_dispatcher_unittest.cc
diff --git a/mojo/edk/system/wait_set_dispatcher_unittest.cc b/mojo/edk/system/wait_set_dispatcher_unittest.cc
deleted file mode 100644
index 42ac86548d6ff96f6c5f12310c14e481c397cd1e..0000000000000000000000000000000000000000
--- a/mojo/edk/system/wait_set_dispatcher_unittest.cc
+++ /dev/null
@@ -1,493 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "mojo/edk/system/wait_set_dispatcher.h"
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <algorithm>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "mojo/edk/embedder/embedder_internal.h"
-#include "mojo/edk/system/core.h"
-#include "mojo/edk/system/message_for_transit.h"
-#include "mojo/edk/system/message_pipe_dispatcher.h"
-#include "mojo/edk/system/request_context.h"
-#include "mojo/edk/system/test_utils.h"
-#include "mojo/edk/system/waiter.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace mojo {
-namespace edk {
-namespace {
-
-class WaitSetDispatcherTest : public ::testing::Test {
- public:
- WaitSetDispatcherTest() {}
- ~WaitSetDispatcherTest() override {}
-
- void SetUp() override {
- CreateMessagePipe(&dispatcher0_, &dispatcher1_);
- }
-
- void TearDown() override {
- for (auto& d : dispatchers_to_close_)
- d->Close();
- }
-
- MojoResult GetOneReadyDispatcher(
- const scoped_refptr<WaitSetDispatcher>& wait_set,
- scoped_refptr<Dispatcher>* ready_dispatcher,
- uintptr_t* context) {
- uint32_t count = 1;
- MojoResult dispatcher_result = MOJO_RESULT_UNKNOWN;
- DispatcherVector dispatchers;
- MojoResult result = wait_set->GetReadyDispatchers(
- &count, &dispatchers, &dispatcher_result, context);
- if (result == MOJO_RESULT_OK) {
- CHECK_EQ(1u, dispatchers.size());
- *ready_dispatcher = dispatchers[0];
- return dispatcher_result;
- }
- return result;
- }
-
- void CreateMessagePipe(scoped_refptr<MessagePipeDispatcher>* d0,
- scoped_refptr<MessagePipeDispatcher>* d1) {
- MojoHandle h0, h1;
- EXPECT_EQ(MOJO_RESULT_OK, MojoCreateMessagePipe(nullptr, &h0, &h1));
-
- Core* core = mojo::edk::internal::g_core;
- *d0 = scoped_refptr<MessagePipeDispatcher>(
- static_cast<MessagePipeDispatcher*>(core->GetDispatcher(h0).get()));
- *d1 = scoped_refptr<MessagePipeDispatcher>(
- static_cast<MessagePipeDispatcher*>(core->GetDispatcher(h1).get()));
- pipe_id_generator_++;
-
- dispatchers_to_close_.push_back(*d0);
- dispatchers_to_close_.push_back(*d1);
- }
-
- void CloseOnShutdown(const scoped_refptr<Dispatcher>& dispatcher) {
- dispatchers_to_close_.push_back(dispatcher);
- }
-
- void WriteMessage(MessagePipeDispatcher* dispatcher,
- const void* bytes,
- size_t num_bytes) {
- Core* core = mojo::edk::internal::g_core;
- MojoMessageHandle msg;
- ASSERT_EQ(MOJO_RESULT_OK,
- core->AllocMessage(static_cast<uint32_t>(num_bytes), nullptr, 0,
- MOJO_ALLOC_MESSAGE_FLAG_NONE, &msg));
- void* buffer;
- ASSERT_EQ(MOJO_RESULT_OK, core->GetMessageBuffer(msg, &buffer));
- memcpy(buffer, bytes, num_bytes);
-
- std::unique_ptr<MessageForTransit> message(
- reinterpret_cast<MessageForTransit*>(msg));
- ASSERT_EQ(MOJO_RESULT_OK,
- dispatcher->WriteMessage(std::move(message),
- MOJO_WRITE_MESSAGE_FLAG_NONE));
- }
-
- void ReadMessage(MessagePipeDispatcher* dispatcher,
- void* bytes,
- uint32_t* num_bytes) {
- std::unique_ptr<MessageForTransit> message;
- ASSERT_EQ(MOJO_RESULT_OK,
- dispatcher->ReadMessage(&message, num_bytes, nullptr, 0,
- MOJO_READ_MESSAGE_FLAG_NONE, false));
- memcpy(bytes, message->bytes(), *num_bytes);
- }
-
- protected:
- scoped_refptr<MessagePipeDispatcher> dispatcher0_;
- scoped_refptr<MessagePipeDispatcher> dispatcher1_;
-
- private:
- // We keep an active RequestContext for the duration of each test. It's unused
- // since these tests don't rely on the MojoWatch API.
- const RequestContext request_context_;
-
- static uint64_t pipe_id_generator_;
- DispatcherVector dispatchers_to_close_;
-
- DISALLOW_COPY_AND_ASSIGN(WaitSetDispatcherTest);
-};
-
-// static
-uint64_t WaitSetDispatcherTest::pipe_id_generator_ = 1;
-
-TEST_F(WaitSetDispatcherTest, Basic) {
- scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher();
- CloseOnShutdown(wait_set);
- ASSERT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(dispatcher0_,
- MOJO_HANDLE_SIGNAL_READABLE, 1));
- ASSERT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(dispatcher1_,
- MOJO_HANDLE_SIGNAL_WRITABLE, 2));
-
- Waiter w;
- uintptr_t context = 0;
- w.Init();
- HandleSignalsState hss;
- // |dispatcher1_| should already be writable.
- EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss));
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals);
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals);
-
- scoped_refptr<Dispatcher> woken_dispatcher;
- EXPECT_EQ(MOJO_RESULT_OK,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context));
- EXPECT_EQ(dispatcher1_, woken_dispatcher);
- EXPECT_EQ(2u, context);
- // If a ready dispatcher isn't removed, it will continue to be returned.
- EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss));
- woken_dispatcher = nullptr;
- context = 0;
- EXPECT_EQ(MOJO_RESULT_OK,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context));
- EXPECT_EQ(dispatcher1_, woken_dispatcher);
- EXPECT_EQ(2u, context);
- ASSERT_EQ(MOJO_RESULT_OK, wait_set->RemoveWaitingDispatcher(dispatcher1_));
-
- // No ready dispatcher.
- hss = HandleSignalsState();
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss));
- EXPECT_FALSE(hss.satisfies(MOJO_HANDLE_SIGNAL_READABLE));
- EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED, w.Wait(0, nullptr));
- EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr));
-
- // Write to |dispatcher1_|, which should make |dispatcher0_| readable.
- char buffer[] = "abcd";
- w.Init();
- WriteMessage(dispatcher1_.get(), buffer, sizeof(buffer));
- EXPECT_EQ(MOJO_RESULT_OK, w.Wait(MOJO_DEADLINE_INDEFINITE, nullptr));
- woken_dispatcher = nullptr;
- context = 0;
- EXPECT_EQ(MOJO_RESULT_OK,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context));
- EXPECT_EQ(dispatcher0_, woken_dispatcher);
- EXPECT_EQ(1u, context);
-
- // Again, if a ready dispatcher isn't removed, it will continue to be
- // returned.
- woken_dispatcher = nullptr;
- EXPECT_EQ(MOJO_RESULT_OK,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr));
- EXPECT_EQ(dispatcher0_, woken_dispatcher);
-
- wait_set->RemoveAwakable(&w, nullptr);
-}
-
-TEST_F(WaitSetDispatcherTest, HandleWithoutRemoving) {
- scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher();
- CloseOnShutdown(wait_set);
- ASSERT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(dispatcher0_,
- MOJO_HANDLE_SIGNAL_READABLE, 1));
-
- Waiter w;
- uintptr_t context = 0;
- w.Init();
- HandleSignalsState hss;
- // No ready dispatcher.
- hss = HandleSignalsState();
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss));
- EXPECT_FALSE(hss.satisfies(MOJO_HANDLE_SIGNAL_READABLE));
- EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED, w.Wait(0, nullptr));
- scoped_refptr<Dispatcher> woken_dispatcher;
- EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr));
-
- // The tested behaviour below should be repeatable.
- for (size_t i = 0; i < 3; i++) {
- // Write to |dispatcher1_|, which should make |dispatcher0_| readable.
- char buffer[] = "abcd";
- w.Init();
- WriteMessage(dispatcher1_.get(), buffer, sizeof(buffer));
- EXPECT_EQ(MOJO_RESULT_OK, w.Wait(MOJO_DEADLINE_INDEFINITE, nullptr));
- woken_dispatcher = nullptr;
- context = 0;
- EXPECT_EQ(MOJO_RESULT_OK,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context));
- EXPECT_EQ(dispatcher0_, woken_dispatcher);
- EXPECT_EQ(1u, context);
-
- // Read from |dispatcher0_| which should change it's state to non-readable.
- char read_buffer[sizeof(buffer) + 5];
- uint32_t num_bytes = sizeof(read_buffer);
- ReadMessage(dispatcher0_.get(), read_buffer, &num_bytes);
- EXPECT_EQ(sizeof(buffer), num_bytes);
-
- // No dispatchers are ready.
- w.Init();
- woken_dispatcher = nullptr;
- context = 0;
- EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context));
- EXPECT_FALSE(woken_dispatcher);
- EXPECT_EQ(0u, context);
- EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED, w.Wait(0, nullptr));
- }
-
- wait_set->RemoveAwakable(&w, nullptr);
-}
-
-TEST_F(WaitSetDispatcherTest, MultipleReady) {
- scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher();
- CloseOnShutdown(wait_set);
-
- scoped_refptr<MessagePipeDispatcher> mp1_dispatcher0;
- scoped_refptr<MessagePipeDispatcher> mp1_dispatcher1;
- CreateMessagePipe(&mp1_dispatcher0, &mp1_dispatcher1);
-
- ASSERT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(dispatcher0_,
- MOJO_HANDLE_SIGNAL_READABLE, 0));
- ASSERT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(dispatcher1_,
- MOJO_HANDLE_SIGNAL_WRITABLE, 0));
- ASSERT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(mp1_dispatcher0,
- MOJO_HANDLE_SIGNAL_WRITABLE, 0));
- ASSERT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(mp1_dispatcher1,
- MOJO_HANDLE_SIGNAL_WRITABLE, 0));
-
- Waiter w;
- w.Init();
- HandleSignalsState hss;
- // The three writable dispatchers should be ready.
- EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss));
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals);
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals);
-
- scoped_refptr<Dispatcher> woken_dispatcher;
- EXPECT_EQ(MOJO_RESULT_OK,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr));
- // Don't know which dispatcher was returned, just that it was one of the
- // writable ones.
- EXPECT_TRUE(woken_dispatcher == dispatcher1_ ||
- woken_dispatcher == mp1_dispatcher0 ||
- woken_dispatcher == mp1_dispatcher1);
-
- DispatcherVector dispatchers_vector;
- uint32_t count = 4;
- MojoResult results[4];
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->GetReadyDispatchers(&count,
- &dispatchers_vector,
- results,
- nullptr));
- EXPECT_EQ(3u, count);
- std::sort(dispatchers_vector.begin(), dispatchers_vector.end());
- DispatcherVector expected_dispatchers;
- expected_dispatchers.push_back(dispatcher1_);
- expected_dispatchers.push_back(mp1_dispatcher0);
- expected_dispatchers.push_back(mp1_dispatcher1);
- std::sort(expected_dispatchers.begin(), expected_dispatchers.end());
- EXPECT_EQ(expected_dispatchers, dispatchers_vector);
-
- // If a ready dispatcher isn't removed, it will continue to be returned.
- EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss));
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals);
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals);
- count = 4;
- dispatchers_vector.clear();
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->GetReadyDispatchers(&count,
- &dispatchers_vector,
- results,
- nullptr));
- EXPECT_EQ(3u, count);
- std::sort(dispatchers_vector.begin(), dispatchers_vector.end());
- EXPECT_EQ(expected_dispatchers, dispatchers_vector);
-
- // Remove one. It shouldn't be returned any longer.
- ASSERT_EQ(MOJO_RESULT_OK,
- wait_set->RemoveWaitingDispatcher(expected_dispatchers.back()));
- expected_dispatchers.pop_back();
- EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss));
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals);
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals);
- count = 4;
- dispatchers_vector.clear();
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->GetReadyDispatchers(&count,
- &dispatchers_vector,
- results,
- nullptr));
- EXPECT_EQ(2u, count);
- std::sort(dispatchers_vector.begin(), dispatchers_vector.end());
- EXPECT_EQ(expected_dispatchers, dispatchers_vector);
-
- // Write to |dispatcher1_|, which should make |dispatcher0_| readable.
- char buffer[] = "abcd";
- w.Init();
- WriteMessage(dispatcher1_.get(), buffer, sizeof(buffer));
- {
- Waiter mp_w;
- mp_w.Init();
- // Wait for |dispatcher0_| to be readable.
- if (dispatcher0_->AddAwakable(&mp_w, MOJO_HANDLE_SIGNAL_READABLE, 0,
- nullptr) == MOJO_RESULT_OK) {
- EXPECT_EQ(MOJO_RESULT_OK, mp_w.Wait(MOJO_DEADLINE_INDEFINITE, 0));
- dispatcher0_->RemoveAwakable(&mp_w, nullptr);
- }
- }
- expected_dispatchers.push_back(dispatcher0_);
- std::sort(expected_dispatchers.begin(), expected_dispatchers.end());
- EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss));
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals);
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals);
- count = 4;
- dispatchers_vector.clear();
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->GetReadyDispatchers(&count,
- &dispatchers_vector,
- results,
- nullptr));
- EXPECT_EQ(3u, count);
- std::sort(dispatchers_vector.begin(), dispatchers_vector.end());
- EXPECT_EQ(expected_dispatchers, dispatchers_vector);
-}
-
-TEST_F(WaitSetDispatcherTest, InvalidParams) {
- scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher();
-
- // Can't add a wait set to itself.
- EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
- wait_set->AddWaitingDispatcher(wait_set,
- MOJO_HANDLE_SIGNAL_READABLE, 0));
-
- // Can't add twice.
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(dispatcher0_,
- MOJO_HANDLE_SIGNAL_READABLE, 0));
- EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS,
- wait_set->AddWaitingDispatcher(dispatcher0_,
- MOJO_HANDLE_SIGNAL_READABLE, 0));
-
- // Remove a dispatcher that wasn't added.
- EXPECT_EQ(MOJO_RESULT_NOT_FOUND,
- wait_set->RemoveWaitingDispatcher(dispatcher1_));
-
- // Add to a closed wait set.
- wait_set->Close();
- EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
- wait_set->AddWaitingDispatcher(dispatcher0_,
- MOJO_HANDLE_SIGNAL_READABLE, 0));
-}
-
-TEST_F(WaitSetDispatcherTest, NotSatisfiable) {
- scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher();
- CloseOnShutdown(wait_set);
-
- // Wait sets can only satisfy MOJO_HANDLE_SIGNAL_READABLE.
- Waiter w;
- w.Init();
- HandleSignalsState hss;
- EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_WRITABLE, 0, &hss));
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_NONE, hss.satisfied_signals);
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals);
-
- hss = HandleSignalsState();
- EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_PEER_CLOSED, 0, &hss));
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_NONE, hss.satisfied_signals);
- EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals);
-}
-
-TEST_F(WaitSetDispatcherTest, ClosedDispatchers) {
- scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher();
- CloseOnShutdown(wait_set);
-
- Waiter w;
- w.Init();
- HandleSignalsState hss;
- // A dispatcher that was added and then closed will be cancelled.
- ASSERT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(dispatcher0_,
- MOJO_HANDLE_SIGNAL_READABLE, 0));
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss));
- dispatcher0_->Close();
- EXPECT_EQ(MOJO_RESULT_OK, w.Wait(MOJO_DEADLINE_INDEFINITE, nullptr));
- EXPECT_TRUE(
- wait_set->GetHandleSignalsState().satisfies(MOJO_HANDLE_SIGNAL_READABLE));
- scoped_refptr<Dispatcher> woken_dispatcher;
- EXPECT_EQ(MOJO_RESULT_CANCELLED,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr));
- EXPECT_EQ(dispatcher0_, woken_dispatcher);
-
- // Dispatcher will be implicitly removed because it may be impossible to
- // remove explicitly.
- woken_dispatcher = nullptr;
- EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr));
- EXPECT_EQ(MOJO_RESULT_NOT_FOUND,
- wait_set->RemoveWaitingDispatcher(dispatcher0_));
-
- // A dispatcher that's not satisfiable should give an error.
- w.Init();
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(dispatcher1_,
- MOJO_HANDLE_SIGNAL_READABLE, 0));
- EXPECT_EQ(MOJO_RESULT_OK, w.Wait(MOJO_DEADLINE_INDEFINITE, nullptr));
- EXPECT_TRUE(
- wait_set->GetHandleSignalsState().satisfies(MOJO_HANDLE_SIGNAL_READABLE));
- EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr));
- EXPECT_EQ(dispatcher1_, woken_dispatcher);
-
- wait_set->RemoveAwakable(&w, nullptr);
-}
-
-TEST_F(WaitSetDispatcherTest, NestedSets) {
- scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher();
- CloseOnShutdown(wait_set);
- scoped_refptr<WaitSetDispatcher> nested_wait_set = new WaitSetDispatcher();
- CloseOnShutdown(nested_wait_set);
-
- Waiter w;
- w.Init();
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->AddWaitingDispatcher(nested_wait_set,
- MOJO_HANDLE_SIGNAL_READABLE, 0));
- EXPECT_EQ(MOJO_RESULT_OK,
- wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, nullptr));
- EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED, w.Wait(0, nullptr));
-
- // Writable signal is immediately satisfied by the message pipe.
- w.Init();
- EXPECT_EQ(MOJO_RESULT_OK,
- nested_wait_set->AddWaitingDispatcher(
- dispatcher0_, MOJO_HANDLE_SIGNAL_WRITABLE, 0));
- EXPECT_EQ(MOJO_RESULT_OK, w.Wait(0, nullptr));
- scoped_refptr<Dispatcher> woken_dispatcher;
- EXPECT_EQ(MOJO_RESULT_OK,
- GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr));
- EXPECT_EQ(nested_wait_set, woken_dispatcher);
-
- wait_set->RemoveAwakable(&w, nullptr);
-}
-
-} // namespace
-} // namespace edk
-} // namespace mojo
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