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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 #import "base/message_loop/message_pump_mac.h" | 5 #import "base/message_loop/message_pump_mac.h" |
6 | 6 |
7 #import <Foundation/Foundation.h> | 7 #import <Foundation/Foundation.h> |
8 | 8 |
9 #include <dlfcn.h> | |
Mark Mentovai
2014/06/03 13:15:22
This belongs in the C system header section (with
| |
9 #include <limits> | 10 #include <limits> |
10 #include <stack> | 11 #include <stack> |
11 | 12 |
12 #include "base/format_macros.h" | 13 #include "base/format_macros.h" |
13 #include "base/logging.h" | 14 #include "base/logging.h" |
14 #include "base/mac/scoped_cftyperef.h" | 15 #include "base/mac/scoped_cftyperef.h" |
15 #include "base/metrics/histogram.h" | 16 #include "base/metrics/histogram.h" |
17 #include "base/message_loop/timer_slack.h" | |
Mark Mentovai
2014/06/03 13:15:22
Sort: message < metrics.
| |
16 #include "base/run_loop.h" | 18 #include "base/run_loop.h" |
17 #include "base/strings/stringprintf.h" | 19 #include "base/strings/stringprintf.h" |
18 #include "base/time/time.h" | 20 #include "base/time/time.h" |
19 | 21 |
20 #if !defined(OS_IOS) | 22 #if !defined(OS_IOS) |
21 #import <AppKit/AppKit.h> | 23 #import <AppKit/AppKit.h> |
22 #endif // !defined(OS_IOS) | 24 #endif // !defined(OS_IOS) |
23 | 25 |
24 namespace { | 26 namespace { |
25 | 27 |
26 void NoOp(void* info) { | 28 void NoOp(void* info) { |
27 } | 29 } |
28 | 30 |
29 const CFTimeInterval kCFTimeIntervalMax = | 31 const CFTimeInterval kCFTimeIntervalMax = |
30 std::numeric_limits<CFTimeInterval>::max(); | 32 std::numeric_limits<CFTimeInterval>::max(); |
31 | 33 |
32 #if !defined(OS_IOS) | 34 #if !defined(OS_IOS) |
33 // Set to true if MessagePumpMac::Create() is called before NSApp is | 35 // Set to true if MessagePumpMac::Create() is called before NSApp is |
34 // initialized. Only accessed from the main thread. | 36 // initialized. Only accessed from the main thread. |
35 bool g_not_using_cr_app = false; | 37 bool g_not_using_cr_app = false; |
36 #endif | 38 #endif |
37 | 39 |
40 // Call through to CFRunLoopTimerSetTolerance(), which is only available on | |
41 // OS X 10.9. | |
42 void SetTimerTolerance(CFRunLoopTimerRef timer, CFTimeInterval tolerance) { | |
43 typedef void (*CFRunLoopTimerSetTolerancePtr)(CFRunLoopTimerRef timer, | |
44 CFTimeInterval tolerance); | |
45 | |
46 static CFRunLoopTimerSetTolerancePtr settimertolerance_function_ptr; | |
47 | |
48 static dispatch_once_t get_timer_tolerance_function_ptr_once; | |
49 dispatch_once(&get_timer_tolerance_function_ptr_once, ^{ | |
50 settimertolerance_function_ptr = | |
51 reinterpret_cast<CFRunLoopTimerSetTolerancePtr>( | |
52 dlsym(RTLD_DEFAULT, "CFRunLoopTimerSetTolerance")); | |
Mark Mentovai
2014/06/03 13:15:22
Don’t use RTLD_DEFAULT, use a handle to CoreFounda
| |
53 }); | |
54 | |
55 if (settimertolerance_function_ptr) | |
56 settimertolerance_function_ptr(timer, tolerance); | |
57 } | |
58 | |
38 } // namespace | 59 } // namespace |
39 | 60 |
40 namespace base { | 61 namespace base { |
41 | 62 |
42 // A scoper for autorelease pools created from message pump run loops. | 63 // A scoper for autorelease pools created from message pump run loops. |
43 // Avoids dirtying up the ScopedNSAutoreleasePool interface for the rare | 64 // Avoids dirtying up the ScopedNSAutoreleasePool interface for the rare |
44 // case where an autorelease pool needs to be passed in. | 65 // case where an autorelease pool needs to be passed in. |
45 class MessagePumpScopedAutoreleasePool { | 66 class MessagePumpScopedAutoreleasePool { |
46 public: | 67 public: |
47 explicit MessagePumpScopedAutoreleasePool(MessagePumpCFRunLoopBase* pump) : | 68 explicit MessagePumpScopedAutoreleasePool(MessagePumpCFRunLoopBase* pump) : |
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275 std::stack<TimeTicks> loop_wait_times_; | 296 std::stack<TimeTicks> loop_wait_times_; |
276 std::stack<TimeTicks> work_source_times_; | 297 std::stack<TimeTicks> work_source_times_; |
277 | 298 |
278 DISALLOW_COPY_AND_ASSIGN(MessagePumpInstrumentation); | 299 DISALLOW_COPY_AND_ASSIGN(MessagePumpInstrumentation); |
279 }; | 300 }; |
280 | 301 |
281 // Must be called on the run loop thread. | 302 // Must be called on the run loop thread. |
282 MessagePumpCFRunLoopBase::MessagePumpCFRunLoopBase() | 303 MessagePumpCFRunLoopBase::MessagePumpCFRunLoopBase() |
283 : delegate_(NULL), | 304 : delegate_(NULL), |
284 delayed_work_fire_time_(kCFTimeIntervalMax), | 305 delayed_work_fire_time_(kCFTimeIntervalMax), |
306 timer_slack_(base::TIMER_SLACK_NONE), | |
285 nesting_level_(0), | 307 nesting_level_(0), |
286 run_nesting_level_(0), | 308 run_nesting_level_(0), |
287 deepest_nesting_level_(0), | 309 deepest_nesting_level_(0), |
288 delegateless_work_(false), | 310 delegateless_work_(false), |
289 delegateless_idle_work_(false) { | 311 delegateless_idle_work_(false) { |
290 run_loop_ = CFRunLoopGetCurrent(); | 312 run_loop_ = CFRunLoopGetCurrent(); |
291 CFRetain(run_loop_); | 313 CFRetain(run_loop_); |
292 | 314 |
293 // Set a repeating timer with a preposterous firing time and interval. The | 315 // Set a repeating timer with a preposterous firing time and interval. The |
294 // timer will effectively never fire as-is. The firing time will be adjusted | 316 // timer will effectively never fire as-is. The firing time will be adjusted |
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431 CFRunLoopSourceSignal(work_source_); | 453 CFRunLoopSourceSignal(work_source_); |
432 CFRunLoopWakeUp(run_loop_); | 454 CFRunLoopWakeUp(run_loop_); |
433 } | 455 } |
434 | 456 |
435 // Must be called on the run loop thread. | 457 // Must be called on the run loop thread. |
436 void MessagePumpCFRunLoopBase::ScheduleDelayedWork( | 458 void MessagePumpCFRunLoopBase::ScheduleDelayedWork( |
437 const TimeTicks& delayed_work_time) { | 459 const TimeTicks& delayed_work_time) { |
438 TimeDelta delta = delayed_work_time - TimeTicks::Now(); | 460 TimeDelta delta = delayed_work_time - TimeTicks::Now(); |
439 delayed_work_fire_time_ = CFAbsoluteTimeGetCurrent() + delta.InSecondsF(); | 461 delayed_work_fire_time_ = CFAbsoluteTimeGetCurrent() + delta.InSecondsF(); |
440 CFRunLoopTimerSetNextFireDate(delayed_work_timer_, delayed_work_fire_time_); | 462 CFRunLoopTimerSetNextFireDate(delayed_work_timer_, delayed_work_fire_time_); |
463 if (timer_slack_ == TIMER_SLACK_MAXIMUM) { | |
464 SetTimerTolerance(delayed_work_timer_, delta.InSecondsF() * 0.5); | |
465 } else { | |
466 SetTimerTolerance(delayed_work_timer_, 0); | |
467 } | |
468 } | |
469 | |
470 void MessagePumpCFRunLoopBase::SetTimerSlack(TimerSlack timer_slack) { | |
471 timer_slack_ = timer_slack; | |
441 } | 472 } |
442 | 473 |
443 // Called from the run loop. | 474 // Called from the run loop. |
444 // static | 475 // static |
445 void MessagePumpCFRunLoopBase::RunDelayedWorkTimer(CFRunLoopTimerRef timer, | 476 void MessagePumpCFRunLoopBase::RunDelayedWorkTimer(CFRunLoopTimerRef timer, |
446 void* info) { | 477 void* info) { |
447 MessagePumpCFRunLoopBase* self = static_cast<MessagePumpCFRunLoopBase*>(info); | 478 MessagePumpCFRunLoopBase* self = static_cast<MessagePumpCFRunLoopBase*>(info); |
448 | 479 |
449 // The timer won't fire again until it's reset. | 480 // The timer won't fire again until it's reset. |
450 self->delayed_work_fire_time_ = kCFTimeIntervalMax; | 481 self->delayed_work_fire_time_ = kCFTimeIntervalMax; |
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954 [NSApplication sharedApplication]; | 985 [NSApplication sharedApplication]; |
955 g_not_using_cr_app = true; | 986 g_not_using_cr_app = true; |
956 return new MessagePumpNSApplication; | 987 return new MessagePumpNSApplication; |
957 #endif | 988 #endif |
958 } | 989 } |
959 | 990 |
960 return new MessagePumpNSRunLoop; | 991 return new MessagePumpNSRunLoop; |
961 } | 992 } |
962 | 993 |
963 } // namespace base | 994 } // namespace base |
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