xpcom/threads/nsThreadPool.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef nsThreadPool_h__
   8 #define nsThreadPool_h__
   9
  10 #include "nsIThreadPool.h"
  11 #include "nsIRunnable.h"
  12 #include "nsCOMArray.h"
  13 #include "nsCOMPtr.h"
  14 #include "nsThreadUtils.h"
  15 #include "mozilla/Atomics.h"
  16 #include "mozilla/AlreadyAddRefed.h"
  17 #include "mozilla/CondVar.h"
  18 #include "mozilla/EventQueue.h"
  19 #include "mozilla/Mutex.h"
  20
  21 class nsIThread;
  22
  23 class nsThreadPool final : public mozilla::Runnable, public nsIThreadPool {
  24  public:
  25   NS_DECL_ISUPPORTS_INHERITED
  26   NS_DECL_NSIEVENTTARGET_FULL
  27   NS_DECL_NSITHREADPOOL
  28   NS_DECL_NSIRUNNABLE
  29
  30   nsThreadPool();
  31
  32  private:
  33   ~nsThreadPool();
  34
  35   void ShutdownThread(nsIThread* aThread);
  36   nsresult PutEvent(nsIRunnable* aEvent);
  37   nsresult PutEvent(already_AddRefed<nsIRunnable> aEvent, uint32_t aFlags);
  38
  39   nsCOMArray<nsIThread> mThreads;
  40   mozilla::Mutex mMutex;
  41   mozilla::CondVar mEventsAvailable;
  42   mozilla::EventQueue mEvents;
  43   uint32_t mThreadLimit;
  44   uint32_t mIdleThreadLimit;
  45   uint32_t mIdleThreadTimeout;
  46   uint32_t mIdleCount;
  47   uint32_t mStackSize;
  48   nsCOMPtr<nsIThreadPoolListener> mListener;
  49   bool mShutdown;
  50   bool mRegressiveMaxIdleTime;
  51   mozilla::Atomic<bool, mozilla::Relaxed> mIsAPoolThreadFree;
  52   nsCString mName;
  53   nsThreadPoolNaming mThreadNaming;
  54 };
  55
  56 #define NS_THREADPOOL_CID                            \
  57   { /* 547ec2a8-315e-4ec4-888e-6e4264fe90eb */       \
  58     0x547ec2a8, 0x315e, 0x4ec4, {                    \
  59       0x88, 0x8e, 0x6e, 0x42, 0x64, 0xfe, 0x90, 0xeb \
  60     }                                                \
  61   }
  62
  63 #endif  // nsThreadPool_h__