The Tor Browser / file comparison
comparison: dom/file/AsyncHelper.h
dom/file/AsyncHelper.h
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:41e038244775 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=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 file, | |
| 5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef mozilla_dom_file_asynchelper_h__ | |
| 8 #define mozilla_dom_file_asynchelper_h__ | |
| 9 | |
| 10 #include "FileCommon.h" | |
| 11 | |
| 12 #include "nsIRequest.h" | |
| 13 #include "nsIRunnable.h" | |
| 14 | |
| 15 class nsIRequestObserver; | |
| 16 | |
| 17 BEGIN_FILE_NAMESPACE | |
| 18 | |
| 19 /** | |
| 20 * Must be subclassed. The subclass must implement DoStreamWork. | |
| 21 * Async operations that are not supported in necko (truncate, flush, etc.) | |
| 22 * should use this helper. Call AsyncWork to invoke the operation. | |
| 23 */ | |
| 24 class AsyncHelper : public nsIRunnable, | |
| 25 public nsIRequest | |
| 26 { | |
| 27 public: | |
| 28 NS_DECL_THREADSAFE_ISUPPORTS | |
| 29 NS_DECL_NSIRUNNABLE | |
| 30 NS_DECL_NSIREQUEST | |
| 31 | |
| 32 nsresult | |
| 33 AsyncWork(nsIRequestObserver* aObserver, nsISupports* aCtxt); | |
| 34 | |
| 35 protected: | |
| 36 AsyncHelper(nsISupports* aStream) | |
| 37 : mStream(aStream), | |
| 38 mStatus(NS_OK) | |
| 39 { } | |
| 40 | |
| 41 virtual ~AsyncHelper() | |
| 42 { } | |
| 43 | |
| 44 virtual nsresult | |
| 45 DoStreamWork(nsISupports* aStream) = 0; | |
| 46 | |
| 47 private: | |
| 48 nsCOMPtr<nsISupports> mStream; | |
| 49 nsCOMPtr<nsIRequestObserver> mObserver; | |
| 50 | |
| 51 nsresult mStatus; | |
| 52 }; | |
| 53 | |
| 54 END_FILE_NAMESPACE | |
| 55 | |
| 56 #endif // mozilla_dom_file_asynchelper_h__ |
