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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "platform/scheduler/renderer/throttled_time_domain.h" | 5 #include "platform/scheduler/renderer/throttled_time_domain.h" |
6 | 6 |
7 namespace blink { | 7 namespace blink { |
8 namespace scheduler { | 8 namespace scheduler { |
9 | 9 |
10 ThrottledTimeDomain::ThrottledTimeDomain(TimeDomain::Observer* observer, | 10 ThrottledTimeDomain::ThrottledTimeDomain(TimeDomain::Observer* observer, |
11 const char* tracing_category) | 11 const char* tracing_category) |
12 : RealTimeDomain(observer, tracing_category) {} | 12 : RealTimeDomain(observer, tracing_category) {} |
13 | 13 |
14 ThrottledTimeDomain::~ThrottledTimeDomain() {} | 14 ThrottledTimeDomain::~ThrottledTimeDomain() {} |
15 | 15 |
16 const char* ThrottledTimeDomain::GetName() const { | 16 const char* ThrottledTimeDomain::GetName() const { |
17 return "ThrottledTimeDomain"; | 17 return "ThrottledTimeDomain"; |
18 } | 18 } |
19 | 19 |
20 void ThrottledTimeDomain::RequestWakeupAt(LazyNow* lazy_now, | 20 void ThrottledTimeDomain::RequestWakeup(base::TimeTicks now, |
21 base::TimeTicks run_time) { | 21 base::TimeDelta delay) { |
22 // We assume the owner (i.e. TaskQueueThrottler) will manage wakeups on our | 22 // We assume the owner (i.e. TaskQueueThrottler) will manage wakeups on our |
23 // behalf. | 23 // behalf. |
24 } | 24 } |
25 | 25 |
26 void ThrottledTimeDomain::CancelWakeupAt(base::TimeTicks run_time) { | |
27 // We ignore this because RequestWakeupAt is a NOP. | |
28 } | |
29 | |
30 base::Optional<base::TimeDelta> ThrottledTimeDomain::DelayTillNextTask( | 26 base::Optional<base::TimeDelta> ThrottledTimeDomain::DelayTillNextTask( |
31 LazyNow* lazy_now) { | 27 LazyNow* lazy_now) { |
32 base::TimeTicks next_run_time; | 28 base::TimeTicks next_run_time; |
33 if (!NextScheduledRunTime(&next_run_time)) | 29 if (!NextScheduledRunTime(&next_run_time)) |
34 return base::Optional<base::TimeDelta>(); | 30 return base::Optional<base::TimeDelta>(); |
35 | 31 |
36 base::TimeTicks now = lazy_now->Now(); | 32 base::TimeTicks now = lazy_now->Now(); |
37 if (now >= next_run_time) | 33 if (now >= next_run_time) |
38 return base::TimeDelta(); // Makes DoWork post an immediate continuation. | 34 return base::TimeDelta(); // Makes DoWork post an immediate continuation. |
39 | 35 |
40 // Unlike RealTimeDomain::ContinuationNeeded we don't request a wake up here, | 36 // Unlike RealTimeDomain::ContinuationNeeded we don't request a wake up here, |
41 // we assume the owner (i.e. TaskQueueThrottler) will manage wakeups on our | 37 // we assume the owner (i.e. TaskQueueThrottler) will manage wakeups on our |
42 // behalf. | 38 // behalf. |
43 return base::Optional<base::TimeDelta>(); | 39 return base::Optional<base::TimeDelta>(); |
44 } | 40 } |
45 | 41 |
46 } // namespace scheduler | 42 } // namespace scheduler |
47 } // namespace blink | 43 } // namespace blink |
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