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| 1 // Copyright (c) 2012 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 #ifndef NET_TOOLS_QUIC_TEST_TOOLS_MOCK_EPOLL_SERVER_H_ | |
| 6 #define NET_TOOLS_QUIC_TEST_TOOLS_MOCK_EPOLL_SERVER_H_ | |
| 7 | |
| 8 #include "base/logging.h" | |
| 9 #include "net/tools/epoll_server/epoll_server.h" | |
| 10 #include "testing/gmock/include/gmock/gmock.h" | |
| 11 | |
| 12 namespace net { | |
| 13 namespace tools { | |
| 14 namespace test { | |
| 15 | |
| 16 // Unlike the full MockEpollServer, this only lies about the time but lets | |
| 17 // fd events operate normally. Usefully when interacting with real backends | |
| 18 // but wanting to skip forward in time to trigger timeouts. | |
| 19 class FakeTimeEpollServer : public EpollServer { | |
| 20 public: | |
| 21 FakeTimeEpollServer(); | |
| 22 ~FakeTimeEpollServer() override; | |
| 23 | |
| 24 // Replaces the EpollServer NowInUsec. | |
| 25 int64 NowInUsec() const override; | |
| 26 | |
| 27 void set_now_in_usec(int64 nius) { now_in_usec_ = nius; } | |
| 28 | |
| 29 // Advances the virtual 'now' by advancement_usec. | |
| 30 void AdvanceBy(int64 advancement_usec) { | |
| 31 set_now_in_usec(NowInUsec() + advancement_usec); | |
| 32 } | |
| 33 | |
| 34 // Advances the virtual 'now' by advancement_usec, and | |
| 35 // calls WaitForEventAndExecteCallbacks. | |
| 36 // Note that the WaitForEventsAndExecuteCallbacks invocation | |
| 37 // may cause NowInUs to advance beyond what was specified here. | |
| 38 // If that is not desired, use the AdvanceByExactly calls. | |
| 39 void AdvanceByAndCallCallbacks(int64 advancement_usec) { | |
| 40 AdvanceBy(advancement_usec); | |
| 41 WaitForEventsAndExecuteCallbacks(); | |
| 42 } | |
| 43 | |
| 44 private: | |
| 45 int64 now_in_usec_; | |
| 46 | |
| 47 DISALLOW_COPY_AND_ASSIGN(FakeTimeEpollServer); | |
| 48 }; | |
| 49 | |
| 50 class MockEpollServer : public FakeTimeEpollServer { | |
| 51 public: // type definitions | |
| 52 typedef base::hash_multimap<int64, struct epoll_event> EventQueue; | |
| 53 | |
| 54 MockEpollServer(); | |
| 55 ~MockEpollServer() override; | |
| 56 | |
| 57 // time_in_usec is the time at which the event specified | |
| 58 // by 'ee' will be delivered. Note that it -is- possible | |
| 59 // to add an event for a time which has already been passed.. | |
| 60 // .. upon the next time that the callbacks are invoked, | |
| 61 // all events which are in the 'past' will be delivered. | |
| 62 void AddEvent(int64 time_in_usec, const struct epoll_event& ee) { | |
| 63 event_queue_.insert(std::make_pair(time_in_usec, ee)); | |
| 64 } | |
| 65 | |
| 66 // Advances the virtual 'now' by advancement_usec, | |
| 67 // and ensure that the next invocation of | |
| 68 // WaitForEventsAndExecuteCallbacks goes no farther than | |
| 69 // advancement_usec from the current time. | |
| 70 void AdvanceByExactly(int64 advancement_usec) { | |
| 71 until_in_usec_ = NowInUsec() + advancement_usec; | |
| 72 set_now_in_usec(NowInUsec() + advancement_usec); | |
| 73 } | |
| 74 | |
| 75 // As above, except calls WaitForEventsAndExecuteCallbacks. | |
| 76 void AdvanceByExactlyAndCallCallbacks(int64 advancement_usec) { | |
| 77 AdvanceByExactly(advancement_usec); | |
| 78 WaitForEventsAndExecuteCallbacks(); | |
| 79 } | |
| 80 | |
| 81 base::hash_set<AlarmCB*>::size_type NumberOfAlarms() const { | |
| 82 return all_alarms_.size(); | |
| 83 } | |
| 84 | |
| 85 protected: // functions | |
| 86 // These functions do nothing here, as we're not actually | |
| 87 // using the epoll_* syscalls. | |
| 88 void DelFD(int fd) const override {} | |
| 89 void AddFD(int fd, int event_mask) const override {} | |
| 90 void ModFD(int fd, int event_mask) const override {} | |
| 91 | |
| 92 // Replaces the epoll_server's epoll_wait_impl. | |
| 93 int epoll_wait_impl(int epfd, | |
| 94 struct epoll_event* events, | |
| 95 int max_events, | |
| 96 int timeout_in_ms) override; | |
| 97 void SetNonblocking(int fd) override {} | |
| 98 | |
| 99 private: // members | |
| 100 EventQueue event_queue_; | |
| 101 int64 until_in_usec_; | |
| 102 | |
| 103 DISALLOW_COPY_AND_ASSIGN(MockEpollServer); | |
| 104 }; | |
| 105 | |
| 106 } // namespace test | |
| 107 } // namespace tools | |
| 108 } // namespace net | |
| 109 | |
| 110 #endif // NET_TOOLS_QUIC_TEST_TOOLS_MOCK_EPOLL_SERVER_H_ | |
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