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1 /* | 1 /* |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #include "webrtc/system_wrappers/include/clock.h" | 11 #include "webrtc/system_wrappers/include/clock.h" |
12 | 12 |
13 #if defined(_WIN32) | 13 #if defined(_WIN32) |
14 // Windows needs to be included before mmsystem.h | 14 // Windows needs to be included before mmsystem.h |
15 #include "webrtc/base/win32.h" | 15 #include "webrtc/base/win32.h" |
16 #include <MMSystem.h> | 16 #include <MMSystem.h> |
17 #elif ((defined WEBRTC_LINUX) || (defined WEBRTC_MAC)) | 17 #elif ((defined WEBRTC_LINUX) || (defined WEBRTC_MAC)) |
18 #include <sys/time.h> | 18 #include <sys/time.h> |
19 #include <time.h> | 19 #include <time.h> |
20 #endif | 20 #endif |
21 | 21 |
22 #include "webrtc/base/criticalsection.h" | 22 #include "webrtc/base/criticalsection.h" |
23 #include "webrtc/base/timeutils.h" | 23 #include "webrtc/base/timeutils.h" |
24 #include "webrtc/system_wrappers/include/rw_lock_wrapper.h" | 24 #include "webrtc/system_wrappers/include/rw_lock_wrapper.h" |
25 | 25 |
26 namespace webrtc { | 26 namespace webrtc { |
27 | 27 |
28 NtpTime Clock::CurrentNtpTime() const { | |
29 uint32_t seconds; | |
30 uint32_t fractions; | |
31 CurrentNtp(seconds, fractions); | |
32 return NtpTime(seconds, fractions); | |
33 } | |
34 | |
35 class RealTimeClock : public Clock { | 28 class RealTimeClock : public Clock { |
36 // Return a timestamp in milliseconds relative to some arbitrary source; the | 29 // Return a timestamp in milliseconds relative to some arbitrary source; the |
37 // source is fixed for this clock. | 30 // source is fixed for this clock. |
38 int64_t TimeInMilliseconds() const override { | 31 int64_t TimeInMilliseconds() const override { |
39 return rtc::TimeMillis(); | 32 return rtc::TimeMillis(); |
40 } | 33 } |
41 | 34 |
42 // Return a timestamp in microseconds relative to some arbitrary source; the | 35 // Return a timestamp in microseconds relative to some arbitrary source; the |
43 // source is fixed for this clock. | 36 // source is fixed for this clock. |
44 int64_t TimeInMicroseconds() const override { | 37 int64_t TimeInMicroseconds() const override { |
45 return rtc::TimeMicros(); | 38 return rtc::TimeMicros(); |
46 } | 39 } |
47 | 40 |
48 // Retrieve an NTP absolute timestamp in seconds and fractions of a second. | 41 // Retrieve an NTP absolute timestamp. |
49 void CurrentNtp(uint32_t& seconds, uint32_t& fractions) const override { | 42 NtpTime CurrentNtpTime() const override { |
50 timeval tv = CurrentTimeVal(); | 43 timeval tv = CurrentTimeVal(); |
51 double microseconds_in_seconds; | 44 double microseconds_in_seconds; |
| 45 uint32_t seconds; |
52 Adjust(tv, &seconds, µseconds_in_seconds); | 46 Adjust(tv, &seconds, µseconds_in_seconds); |
53 fractions = static_cast<uint32_t>( | 47 uint32_t fractions = static_cast<uint32_t>( |
54 microseconds_in_seconds * kMagicNtpFractionalUnit + 0.5); | 48 microseconds_in_seconds * kMagicNtpFractionalUnit + 0.5); |
| 49 return NtpTime(seconds, fractions); |
55 } | 50 } |
56 | 51 |
57 // Retrieve an NTP absolute timestamp in milliseconds. | 52 // Retrieve an NTP absolute timestamp in milliseconds. |
58 int64_t CurrentNtpInMilliseconds() const override { | 53 int64_t CurrentNtpInMilliseconds() const override { |
59 timeval tv = CurrentTimeVal(); | 54 timeval tv = CurrentTimeVal(); |
60 uint32_t seconds; | 55 uint32_t seconds; |
61 double microseconds_in_seconds; | 56 double microseconds_in_seconds; |
62 Adjust(tv, &seconds, µseconds_in_seconds); | 57 Adjust(tv, &seconds, µseconds_in_seconds); |
63 return 1000 * static_cast<int64_t>(seconds) + | 58 return 1000 * static_cast<int64_t>(seconds) + |
64 static_cast<int64_t>(1000.0 * microseconds_in_seconds + 0.5); | 59 static_cast<int64_t>(1000.0 * microseconds_in_seconds + 0.5); |
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240 int64_t SimulatedClock::TimeInMilliseconds() const { | 235 int64_t SimulatedClock::TimeInMilliseconds() const { |
241 ReadLockScoped synchronize(*lock_); | 236 ReadLockScoped synchronize(*lock_); |
242 return (time_us_ + 500) / 1000; | 237 return (time_us_ + 500) / 1000; |
243 } | 238 } |
244 | 239 |
245 int64_t SimulatedClock::TimeInMicroseconds() const { | 240 int64_t SimulatedClock::TimeInMicroseconds() const { |
246 ReadLockScoped synchronize(*lock_); | 241 ReadLockScoped synchronize(*lock_); |
247 return time_us_; | 242 return time_us_; |
248 } | 243 } |
249 | 244 |
250 void SimulatedClock::CurrentNtp(uint32_t& seconds, uint32_t& fractions) const { | 245 NtpTime SimulatedClock::CurrentNtpTime() const { |
251 int64_t now_ms = TimeInMilliseconds(); | 246 int64_t now_ms = TimeInMilliseconds(); |
252 seconds = (now_ms / 1000) + kNtpJan1970; | 247 uint32_t seconds = (now_ms / 1000) + kNtpJan1970; |
253 fractions = | 248 uint32_t fractions = |
254 static_cast<uint32_t>((now_ms % 1000) * kMagicNtpFractionalUnit / 1000); | 249 static_cast<uint32_t>((now_ms % 1000) * kMagicNtpFractionalUnit / 1000); |
| 250 return NtpTime(seconds, fractions); |
255 } | 251 } |
256 | 252 |
257 int64_t SimulatedClock::CurrentNtpInMilliseconds() const { | 253 int64_t SimulatedClock::CurrentNtpInMilliseconds() const { |
258 return TimeInMilliseconds() + 1000 * static_cast<int64_t>(kNtpJan1970); | 254 return TimeInMilliseconds() + 1000 * static_cast<int64_t>(kNtpJan1970); |
259 } | 255 } |
260 | 256 |
261 void SimulatedClock::AdvanceTimeMilliseconds(int64_t milliseconds) { | 257 void SimulatedClock::AdvanceTimeMilliseconds(int64_t milliseconds) { |
262 AdvanceTimeMicroseconds(1000 * milliseconds); | 258 AdvanceTimeMicroseconds(1000 * milliseconds); |
263 } | 259 } |
264 | 260 |
265 void SimulatedClock::AdvanceTimeMicroseconds(int64_t microseconds) { | 261 void SimulatedClock::AdvanceTimeMicroseconds(int64_t microseconds) { |
266 WriteLockScoped synchronize(*lock_); | 262 WriteLockScoped synchronize(*lock_); |
267 time_us_ += microseconds; | 263 time_us_ += microseconds; |
268 } | 264 } |
269 | 265 |
270 }; // namespace webrtc | 266 }; // namespace webrtc |
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