xpcom/glue/AppData.h@6474c204b198 (annotated)
xpcom/glue/AppData.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef mozilla_AppData_h |
| michael@0 | 7 | #define mozilla_AppData_h |
| michael@0 | 8 | |
| michael@0 | 9 | #include "nsXREAppData.h" |
| michael@0 | 10 | #include "nscore.h" |
| michael@0 | 11 | #include "nsStringGlue.h" |
| michael@0 | 12 | #include "nsISupportsUtils.h" |
| michael@0 | 13 | |
| michael@0 | 14 | namespace mozilla { |
| michael@0 | 15 | |
| michael@0 | 16 | // Like nsXREAppData, but releases all strong refs/allocated memory |
| michael@0 | 17 | // in the destructor. |
| michael@0 | 18 | class NS_COM_GLUE ScopedAppData : public nsXREAppData |
| michael@0 | 19 | { |
| michael@0 | 20 | public: |
| michael@0 | 21 | ScopedAppData() { Zero(); this->size = sizeof(*this); } |
| michael@0 | 22 | |
| michael@0 | 23 | ScopedAppData(const nsXREAppData* aAppData); |
| michael@0 | 24 | |
| michael@0 | 25 | void Zero() { memset(this, 0, sizeof(*this)); } |
| michael@0 | 26 | |
| michael@0 | 27 | ~ScopedAppData(); |
| michael@0 | 28 | }; |
| michael@0 | 29 | |
| michael@0 | 30 | /** |
| michael@0 | 31 | * Given "str" is holding a string allocated with NS_Alloc, or null: |
| michael@0 | 32 | * replace the value in "str" with a new value. |
| michael@0 | 33 | * |
| michael@0 | 34 | * @param newvalue Null is permitted. The string is cloned with |
| michael@0 | 35 | * NS_strdup |
| michael@0 | 36 | */ |
| michael@0 | 37 | void SetAllocatedString(const char *&str, const char *newvalue); |
| michael@0 | 38 | |
| michael@0 | 39 | /** |
| michael@0 | 40 | * Given "str" is holding a string allocated with NS_Alloc, or null: |
| michael@0 | 41 | * replace the value in "str" with a new value. |
| michael@0 | 42 | * |
| michael@0 | 43 | * @param newvalue If "newvalue" is the empty string, "str" will be set |
| michael@0 | 44 | * to null. |
| michael@0 | 45 | */ |
| michael@0 | 46 | void SetAllocatedString(const char *&str, const nsACString &newvalue); |
| michael@0 | 47 | |
| michael@0 | 48 | template<class T> |
| michael@0 | 49 | void SetStrongPtr(T *&ptr, T* newvalue) |
| michael@0 | 50 | { |
| michael@0 | 51 | NS_IF_RELEASE(ptr); |
| michael@0 | 52 | ptr = newvalue; |
| michael@0 | 53 | NS_IF_ADDREF(ptr); |
| michael@0 | 54 | } |
| michael@0 | 55 | |
| michael@0 | 56 | } // namespace mozilla |
| michael@0 | 57 | |
| michael@0 | 58 | #endif |
