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Unified Diff: crypto/capi_util.h

Issue 6805019: Move crypto files out of base, to a top level directory. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Fixes comments by eroman Created 9 years, 8 months ago
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Index: crypto/capi_util.h
===================================================================
--- crypto/capi_util.h (revision 0)
+++ crypto/capi_util.h (revision 0)
@@ -0,0 +1,32 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_CAPI_UTIL_H_
+#define CRYPTO_CAPI_UTIL_H_
+#pragma once
+
+#include <windows.h>
+#include <wincrypt.h>
+
+namespace crypto {
+
+// CryptAcquireContext when passed CRYPT_NEWKEYSET or CRYPT_DELETEKEYSET in
+// flags is not thread-safe. For such calls, we create a global lock to
+// synchronize it.
+//
+// From "Threading Issues with Cryptographic Service Providers",
+// <http://msdn.microsoft.com/en-us/library/aa388149(v=VS.85).aspx>:
+//
+// "The CryptAcquireContext function is generally thread safe unless
+// CRYPT_NEWKEYSET or CRYPT_DELETEKEYSET is specified in the dwFlags
+// parameter."
+BOOL CryptAcquireContextLocked(HCRYPTPROV* prov,
+ LPCWSTR container,
+ LPCWSTR provider,
+ DWORD prov_type,
+ DWORD flags);
+
+} // namespace crypto
+
+#endif // CRYPTO_CAPI_UTIL_H_
Property changes on: crypto\capi_util.h
___________________________________________________________________
Added: svn:eol-style
+ LF
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