1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "crypto/capi_util.h"
6
7 #include "base/basictypes.h"
8 #include "base/memory/singleton.h"
9 #include "base/synchronization/lock.h"
10
11 namespace {
12
13 class CAPIUtilSingleton {
14 public:
GetInstance()15 static CAPIUtilSingleton* GetInstance() {
16 return Singleton<CAPIUtilSingleton>::get();
17 }
18
19 // Returns a lock to guard calls to CryptAcquireContext with
20 // CRYPT_DELETEKEYSET or CRYPT_NEWKEYSET.
acquire_context_lock()21 base::Lock& acquire_context_lock() {
22 return acquire_context_lock_;
23 }
24
25 private:
26 friend class Singleton<CAPIUtilSingleton>;
27 friend struct DefaultSingletonTraits<CAPIUtilSingleton>;
28
CAPIUtilSingleton()29 CAPIUtilSingleton() {}
30
31 base::Lock acquire_context_lock_;
32
33 DISALLOW_COPY_AND_ASSIGN(CAPIUtilSingleton);
34 };
35
36 } // namespace
37
38 namespace crypto {
39
CryptAcquireContextLocked(HCRYPTPROV * prov,LPCWSTR container,LPCWSTR provider,DWORD prov_type,DWORD flags)40 BOOL CryptAcquireContextLocked(HCRYPTPROV* prov,
41 LPCWSTR container,
42 LPCWSTR provider,
43 DWORD prov_type,
44 DWORD flags) {
45 base::AutoLock lock(CAPIUtilSingleton::GetInstance()->acquire_context_lock());
46 return CryptAcquireContext(prov, container, provider, prov_type, flags);
47 }
48
CryptAlloc(size_t size)49 void* WINAPI CryptAlloc(size_t size) {
50 return malloc(size);
51 }
52
CryptFree(void * p)53 void WINAPI CryptFree(void* p) {
54 free(p);
55 }
56
57 } // namespace crypto
58