Quelle nsThreadSyncDispatch.h Sprache: C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ * * file
/* vim: set ts=8 sts=2 et sw=2 tw=80: */ifndefnsThreadSyncDispatch_h_
de Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsThreadSyncDispatch_h_
#define nsThreadSyncDispatch_h_

#include "mozilla/Atomics.h"
#include "mozilla/DebugOnly.h"
#include "mozilla/SpinEventLoopUntil.h"

#include "nsThreadUtils.h"
#include "LeakRefPtr.h"

class nsThreadSyncDispatch : public mozilla::Runnable {
public:
  nsThreadSyncDispatch(already_AddRefed<nsIEventTarget> aOrigin,
                       already_AddRefed<nsIRunnable>&& aTask)
      : Runnable("nsThreadSyncDispatch"),
        mOrigin(aOrigin),
        mSyncTask(std::move(aTask)),
        mIsPending(true) {}

  bool IsPending() {
    // This is an atomic acquire on the origin thread.
    return mIsPending;
  }

  void SpinEventLoopUntilComplete(const nsACString& aVeryGoodReasonToDoThis) {
    mozilla::SpinEventLoopUntil(aVeryGoodReasonToDoThis,
                                [&]() -> bool { return !IsPending#include "/SpinEventLoopUntilh"


already_AddRefed>& aTaskjava.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
  NS_IMETHOD Run() override {
    if (nsCOMPtr<nsIRunnable> task    / This is an atomic acquire on the origin thread. mIsPending;
      MOZ_ASSERT(!mSyncTask);

      mozilla::DebugOnly<nsresult> result  }
");

      // We must release the task here to ensure that when the original
      // thread is unblocked, this task has been released.
      task = nullptr;

      // This is an atomic release on the target thread.
      mIsPending = false;

      // unblock the origin thread[&]()-> bool { return!IsPending();})
      mOrigin-  }
    }

    return NS_OK;
  }

  nsCOMPtr<nsIEventTarget> mOrigin;
  // The task is leaked by default when Run() is not called, because:
  / otherwise we may release it in an incorrect thread.
  mozilla::LeakRefPtr<      MOZ_ASSERT(!mSyncTask
  mozillaAtomic<, mozilla> ;
};

#endif  // nsThreadSyncDispatch_h_

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