boringssl/include/openssl/c++/scoped_helpers.h

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/* Copyright (c) 2016, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#ifndef OPENSSL_HEADER_CXX_SCOPED_HELPERS_H
#define OPENSSL_HEADER_CXX_SCOPED_HELPERS_H
namespace bssl {
template<typename T, typename CleanupRet, void (*init_func)(T*),
CleanupRet (*cleanup_func)(T*)>
class ScopedContext {
public:
ScopedContext() {
init_func(&ctx_);
}
~ScopedContext() {
cleanup_func(&ctx_);
}
T *get() { return &ctx_; }
const T *get() const { return &ctx_; }
void Reset() {
cleanup_func(&ctx_);
init_func(&ctx_);
}
private:
T ctx_;
};
} // namespace bssl
#endif /* OPENSSL_HEADER_CXX_SCOPED_HELPERS_H */