nsStreamLoader.h (1654B)
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 #ifndef nsStreamLoader_h__ 7 #define nsStreamLoader_h__ 8 9 #include "nsIThreadRetargetableStreamListener.h" 10 #include "nsIStreamLoader.h" 11 #include "nsCOMPtr.h" 12 #include "mozilla/Atomics.h" 13 #include "mozilla/Vector.h" 14 15 class nsIRequest; 16 17 namespace mozilla { 18 namespace net { 19 20 class nsStreamLoader final : public nsIStreamLoader { 21 public: 22 NS_DECL_THREADSAFE_ISUPPORTS 23 NS_DECL_NSISTREAMLOADER 24 NS_DECL_NSIREQUESTOBSERVER 25 NS_DECL_NSISTREAMLISTENER 26 NS_DECL_NSITHREADRETARGETABLESTREAMLISTENER 27 28 nsStreamLoader(); 29 30 static nsresult Create(REFNSIID aIID, void** aResult); 31 32 protected: 33 ~nsStreamLoader() = default; 34 35 static nsresult WriteSegmentFun(nsIInputStream*, void*, const char*, uint32_t, 36 uint32_t, uint32_t*); 37 38 // Utility method to free mData, if present, and update other state to 39 // reflect that no data has been allocated. 40 void ReleaseData(); 41 42 nsCOMPtr<nsIStreamLoaderObserver> mObserver; 43 nsCOMPtr<nsISupports> mContext; // the observer's context 44 nsCOMPtr<nsIRequest> mRequest; 45 nsCOMPtr<nsIRequestObserver> mRequestObserver; 46 47 mozilla::Atomic<uint32_t, mozilla::MemoryOrdering::Relaxed> mBytesRead; 48 49 // Buffer to accumulate incoming data. We preallocate if contentSize is 50 // available. 51 mozilla::Vector<uint8_t, 0> mData; 52 }; 53 54 } // namespace net 55 } // namespace mozilla 56 57 #endif // nsStreamLoader_h__