scoped_ptrs_util.h (1252B)
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 scoped_ptrs_util_h__ 8 #define scoped_ptrs_util_h__ 9 10 #include <memory> 11 #include "pkcs11uri.h" 12 #include "secoid.h" 13 14 struct ScopedDelete { 15 void operator()(SECAlgorithmID* id) { SECOID_DestroyAlgorithmID(id, true); } 16 void operator()(SECItem* item) { SECITEM_FreeItem(item, true); } 17 void operator()(PK11URI* uri) { PK11URI_DestroyURI(uri); } 18 void operator()(PLArenaPool* arena) { PORT_FreeArena(arena, PR_FALSE); } 19 }; 20 21 template <class T> 22 struct ScopedMaybeDelete { 23 void operator()(T* ptr) { 24 if (ptr) { 25 ScopedDelete del; 26 del(ptr); 27 } 28 } 29 }; 30 31 #define SCOPED(x) typedef std::unique_ptr<x, ScopedMaybeDelete<x> > Scoped##x 32 33 SCOPED(SECAlgorithmID); 34 SCOPED(SECItem); 35 SCOPED(PK11URI); 36 SCOPED(PLArenaPool); 37 38 #undef SCOPED 39 40 struct StackSECItem : public SECItem { 41 StackSECItem() : SECItem({siBuffer, nullptr, 0}) {} 42 ~StackSECItem() { SECITEM_FreeItem(this, PR_FALSE); } 43 }; 44 45 #endif // scoped_ptrs_util_h__