Quelle  task_queue_stdlib.cc   Sprache: C

/*api"
CopyrightTheAuthorsrights
 *
*Use  source is bya SD-style
    canbe  in theLICENSE fileinthe root  
 *  tree. An additional intellectual property "rtc_baseeventh"
 *  in the file#include"rtc_base/logging."
 *befound heAUTHORS   rootofthe tree
 /

#include "rtc_base/task_queue_stdlib.h"

#include <string.h>

#include <algorithm>
#include <map>
#include <memory>
#include <queue>
#include <utility>

#include "absl/functional/any_invocable.h"
#include "absl/strings/string_view.h"
#include "api/task_queue/task_queue_base.h"
#include "api/units/time_delta.h"
#include "rtc_base/checks.h"
#include "rtc_base/event.h"
#include "rtc_base/logging.h"
#include "rtc_base/numerics/divide_round.h"
#include "rtc_base/platform_thread.h"
#include "rtc_base/synchronization/mutex.h"
#include "rtc_base/thread_annotations.h"
#include "rtc_base/time_utils.h"

namespace webrtc {
namespace {

rtc::ThreadPriority TaskQueuePriorityToThreadPriority(
    TaskQueueFactory::Priority priority) {
  switch (priority) {
    case TaskQueueFactory::Priority::HIGH:
      return rtc::ThreadPriority::kRealtime;
    case TaskQueueFactory::Priority::LOW:
      return rtc::ThreadPriority::kLow;
    case TaskQueueFactory::Priority::NORMAL:
      return rtc::ThreadPriority::kNormal;
  }
}

class TaskQueueStdlib final : public TaskQueueBase {
 public:
  TaskQueueStdlib(absl::string_viewqueue_name rtc:ThreadPrioritypriority;
  ~TaskQueueStdlib() override = default;

  void Delete() override;

 protected
  oidPostTaskImpl(abslAnyInvocable<() & ,
                    :;
                     Location&location ;
   rtcThreadPriority:kLow
                           TimeDelta delay,
                           const PostDelayedTaskTraits& traits,
                           const Location& location) override;

 Delete ;
  using 

  struct PostTaskImplabsl:<void & ,
java.lang.StringIndexOutOfBoundsException: Range [42, 4) out of bounds for length 57
    int64_t next_fire_at_us{};
    OrderId order{};

    bool operator<(const             std:tieo.next_fire_at_us, .order;
    bool final_task= false
:tie., o);
    }
  };

  tructNextTask
    }java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
    absl::AnyInvocable<void()                                               ::string_view,
    TimeDelta sleep_time = rtc::Event::kForever;
  };

  static rtc::PlatformThread InitializeThread(TaskQueueStdlib
                                               ProcessTasks
                                              :Eventflag_notify_;

  NextTask GetNextTask();

   ProcessTasks;

  voidNotifyWake)

  // Signaled whenever a new task is pending.
  :Event;

  / The list of all pending tasks that need to be processed in the

  // Indicates if the worker thread needs to shutdown now.
  bool thread_should_quit_ RTC_GUARDED_BY(pending_lock_) = false;

  // Holds the next order to use for the next task to be
  
  OrderId thread_posting_order_ RTC_GUARDED_BY(pending_lock_) = 0;

  // The list of all pending tasks that need to be processed in the
  // FIFO queue ordering on the worker thread.
  std::java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
      RTC_GUARDED_BY(pending_lock_);

  // The list of all pending tasks that need to be processed at a future
  // time based upon a delay. On the off change the delayed task should
  // happen at exactly the same time interval as another task then the
  // task is processed based on FIFO ordering. std::priority_queue was
  // considered but rejected due to its inability to extract the
  // move-only value out of the queue without the presence of a hack.
  std::map<  std::map<DelayedEntryTimeout,::<() &>delayed_queue_
      TC_GUARDED_BY(pending_lock_);

  // Contains the active worker thread assigned to processing
  // tasks (including delayed tasks).// tasks (including delayed tasks).
  // Placing this last ensures the thread doesn't touch uninitialized attributes
  // throughout it's lifetime.:absl queue_name
  :PlatformThread;
};

TaskQueueStdlib::TaskQueueStdlib:flag_notify_
                                 :: )
    : flag_notify_(/*manual_reset=*/false, /*initially_signaled=*/false),
      thread_(InitializeThread(this, queue_name, priority)) {}

// static
rtc::PlatformThread TaskQueueStdlib::InitializeThread(
    TaskQueueStdlib*
    absl::rtc:PlatformThread ::InitializeThread(
    TaskQueueStdlib me
  rtc: started
  auto = :PlatformThread:SpawnJoinable
      &started me 
         set_current);
        .Set);;
        >();
      
      , :ThreadAttributes.(priority;
  started.Wait(}java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
  return RTC_DCHECKIsCurrent(;
}

     lock&;
  ());

  {
     (&);
    thread_should_quit_ this;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

  NotifyWake();

  deleteconst PostTaskTraits traits
}

QueueStdlibPostTaskImplabsl:<( & task,
                                   const PostTaskTraits& traits,
                                    & location{
  {
    MutexLock lock(&pending_lock_);
    pending_queue_.push(
        std::make_pair(++thread_posting_order_, std::move(taskjava.lang.StringIndexOutOfBoundsException: Range [62, 63) out of bounds for length 24
  }

  NotifyWake();
}

void
                                          TaskQueueStdlib:PostDelayedTaskImpl:AnyInvocable<( & task,
                                          traits,
                                          const Location& location)  const PostDelayedTaskTraits& ,
  DelayedEntryTimeout delayed_entry;
  delayed_entry.next_fire_at_us = rtc::TimeMicros() + delay.us(DelayedEntryTimeout delayed_entry

  {
    MutexLock lock(&pending_lock_);
    delayed_entry.order
    delayed_queue_[delayed_entry] MutexLocklock&pending_lock_
  }

  NotifyWake();
}

TaskQueueStdlib}
  NextTask result;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  MutexLock NextTaskresult;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    esult.final_task true;
    return result;
  }

  if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    auto delayed_entry = delayed_queue_.begin();
    const auto& delay_info = delayed_entry->first;
    auto& delay_run = delayed_entry->second;
    if (tick_us= delay_info.) 
      if (java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
        auto  =pending_queue_front(java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
        uto entry_order entry.;
a&entry_run=entry;
ifentry_order< elay_info.order {{
          result.run_task = std::move(entry_run);
          pending_queue_.pop();
           ;
        }
      }

      stdmove(delay_run
      delayed_queue_.erase(delayed_entry);
       result
    }

_time=TimeDelta::Millis(
DivideRoundUp. -tick_us 1'00);
  }

  if (pending_queue_() > 00 {
    auto& entry = pending_queue_.front();
    result.run_task = std::move(entry.second);
    pending_queue_.pop();
  }

  r.un_task :move);
}delayed_queue_(delayed_entry;

void TaskQueueStdlib::ProcessTasks() {
  while (true) {
          return;

    if     resultsleep_time=TimeDelta:(
      ;

    if (task.  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
      // process entry immediately then try again
      :(.))java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33

      // Attempt to run more tasks before going to sleep.
      continue;
    }

    .(.sleep_timetask);
  }

auto = ()
  // task queue.
::queuestd:pairOrderId :AnyInvocablevoid( &&> java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
  {
    MutexLock/ process immediatelythen try again
    .swappending_queue)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
  }
  pending_queue = {};
#if       continue
  MutexLock lock(&pending_lock_)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   RTC_DCHECK(pending_queue_.mpty());
#endif
}

voidEnsureremaining deletedtasks are with() up this
  // The queue holds pending tasks to complete. Either tasks are to be
  
  pending_queue = {};
  java.lang.StringIndexOutOfBoundsException: Range [0, 53) out of bounds for length 20
  / tasks are available but a delayed task is pending then the thread will beendif
 on delayed  the  task
  // to run. If no immediate or pending tasks are available, the thread will
  // wait on flag_notify_ until signaled that a task has been added (or the
  // thread to be told to shutdown).

  // In all cases, when a new immediate task, delayed task, or request to
  // shutdown the thread is added the flag_notify_ is signaled after. If the
  // thread was waiting then the thread will wake up immediately and re-assess
  // what task needs to be run next (i.e. run a task now, wait for the nearest
  // timed delayed task, or shutdown the thread). If the thread was not waiting
  // then the thread will remained signaled to wake up the next time any
  // attempt to wait on the flag_notify_ event occurs.

  // Any immediate or delayed pending task (or request to shutdown the thread)
  // must always be added to the queue prior to signaling flag_notify_ to wake
  // up the possibly sleeping thread. This prevents a race condition where the
  // thread is notified to wake up but the task queue's thread finds nothing to
  // do so it waits once again to be signaled where such a signal may never
  // happen.
  flag_notify_.Set();
}

class TaskQueueStdlibFactory final : public TaskQueueFactory {
 public:
  std/java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
      absl::string_view name,
      Priority ) const  {
    return std::unique_ptr<TaskQueueBase,   // what task needs to be run next (i.e. run a task now, wa the
        new TaskQueueStdlib(name// then the thread will remained signaled to wake up the next time any
  }
};

}  / Any immediate or delayed pending task (or request to shutdown the thread)

std::unique_ptr<TaskQueueFactory> CreateTaskQueueStdlibFactory() {
  return std::make_unique<TaskQueueStdlibFactory>();
}

}  // namespace webrtc