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.
5 #ifndef NET_TOOLS_QUIC_TEST_TOOLS_MOCK_EPOLL_SERVER_H_
6 #define NET_TOOLS_QUIC_TEST_TOOLS_MOCK_EPOLL_SERVER_H_
8 #include "base/logging.h"
9 #include "net/tools/epoll_server/epoll_server.h"
10 #include "testing/gmock/include/gmock/gmock.h"
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
{
21 FakeTimeEpollServer();
22 virtual ~FakeTimeEpollServer();
24 // Replaces the EpollServer NowInUsec.
25 virtual int64
NowInUsec() const OVERRIDE
;
27 void set_now_in_usec(int64 nius
) { now_in_usec_
= nius
; }
29 // Advances the virtual 'now' by advancement_usec.
30 void AdvanceBy(int64 advancement_usec
) {
31 set_now_in_usec(NowInUsec() + advancement_usec
);
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();
47 DISALLOW_COPY_AND_ASSIGN(FakeTimeEpollServer
);
50 class MockEpollServer
: public FakeTimeEpollServer
{
51 public: // type definitions
52 typedef base::hash_multimap
<int64
, struct epoll_event
> EventQueue
;
55 virtual ~MockEpollServer();
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
));
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
);
75 // As above, except calls WaitForEventsAndExecuteCallbacks.
76 void AdvanceByExactlyAndCallCallbacks(int64 advancement_usec
) {
77 AdvanceByExactly(advancement_usec
);
78 WaitForEventsAndExecuteCallbacks();
81 base::hash_set
<AlarmCB
*>::size_type
NumberOfAlarms() const {
82 return all_alarms_
.size();
85 protected: // functions
86 // These functions do nothing here, as we're not actually
87 // using the epoll_* syscalls.
88 virtual void DelFD(int fd
) const OVERRIDE
{}
89 virtual void AddFD(int fd
, int event_mask
) const OVERRIDE
{}
90 virtual void ModFD(int fd
, int event_mask
) const OVERRIDE
{}
92 // Replaces the epoll_server's epoll_wait_impl.
93 virtual int epoll_wait_impl(int epfd
,
94 struct epoll_event
* events
,
96 int timeout_in_ms
) OVERRIDE
;
97 virtual void SetNonblocking (int fd
) OVERRIDE
{}
100 EventQueue event_queue_
;
101 int64 until_in_usec_
;
103 DISALLOW_COPY_AND_ASSIGN(MockEpollServer
);
110 #endif // NET_TOOLS_QUIC_TEST_TOOLS_MOCK_EPOLL_SERVER_H_