0121953a10
Rather than manually register the stack deleters separately, instantiate them automatically from DEFINE_STACK_OF and BORINGSSL_MAKE_DELETER. The StackTraits bridge in DEFINE_STACK_OF will additionally be used for other C++ STACK_OF conveniences. Bug: 132 Change-Id: I95d6c15b2219b34c7a8ce06dd8012d073dc19c27 Reviewed-on: https://boringssl-review.googlesource.com/18465 Reviewed-by: David Benjamin <davidben@google.com> Commit-Queue: David Benjamin <davidben@google.com> CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
/* Copyright (c) 2016, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#ifndef OPENSSL_HEADER_POOL_H
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#define OPENSSL_HEADER_POOL_H
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#include <openssl/base.h>
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#include <openssl/stack.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* Buffers and buffer pools.
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*
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* |CRYPTO_BUFFER|s are simply reference-counted blobs. A |CRYPTO_BUFFER_POOL|
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* is an intern table for |CRYPTO_BUFFER|s. This allows for a single copy of a
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* given blob to be kept in memory and referenced from multiple places. */
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DEFINE_STACK_OF(CRYPTO_BUFFER)
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/* CRYPTO_BUFFER_POOL_new returns a freshly allocated |CRYPTO_BUFFER_POOL| or
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* NULL on error. */
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OPENSSL_EXPORT CRYPTO_BUFFER_POOL* CRYPTO_BUFFER_POOL_new(void);
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/* CRYPTO_BUFFER_POOL_free frees |pool|, which must be empty. */
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OPENSSL_EXPORT void CRYPTO_BUFFER_POOL_free(CRYPTO_BUFFER_POOL *pool);
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/* CRYPTO_BUFFER_new returns a |CRYPTO_BUFFER| containing a copy of |data|, or
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* else NULL on error. If |pool| is not NULL then the returned value may be a
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* reference to a previously existing |CRYPTO_BUFFER| that contained the same
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* data. Otherwise, the returned, fresh |CRYPTO_BUFFER| will be added to the
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* pool. */
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OPENSSL_EXPORT CRYPTO_BUFFER *CRYPTO_BUFFER_new(const uint8_t *data, size_t len,
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CRYPTO_BUFFER_POOL *pool);
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/* CRYPTO_BUFFER_new_from_CBS acts the same as |CRYPTO_BUFFER_new|. */
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OPENSSL_EXPORT CRYPTO_BUFFER *CRYPTO_BUFFER_new_from_CBS(
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CBS *cbs, CRYPTO_BUFFER_POOL *pool);
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/* CRYPTO_BUFFER_free decrements the reference count of |buf|. If there are no
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* other references, or if the only remaining reference is from a pool, then
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* |buf| will be freed. */
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OPENSSL_EXPORT void CRYPTO_BUFFER_free(CRYPTO_BUFFER *buf);
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/* CRYPTO_BUFFER_up_ref increments the reference count of |buf| and returns
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* one. */
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OPENSSL_EXPORT int CRYPTO_BUFFER_up_ref(CRYPTO_BUFFER *buf);
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/* CRYPTO_BUFFER_data returns a pointer to the data contained in |buf|. */
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OPENSSL_EXPORT const uint8_t *CRYPTO_BUFFER_data(const CRYPTO_BUFFER *buf);
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/* CRYPTO_BUFFER_len returns the length, in bytes, of the data contained in
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* |buf|. */
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OPENSSL_EXPORT size_t CRYPTO_BUFFER_len(const CRYPTO_BUFFER *buf);
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/* CRYPTO_BUFFER_init_CBS initialises |out| to point at the data from |buf|. */
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OPENSSL_EXPORT void CRYPTO_BUFFER_init_CBS(const CRYPTO_BUFFER *buf, CBS *out);
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#if defined(__cplusplus)
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} /* extern C */
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extern "C++" {
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namespace bssl {
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BORINGSSL_MAKE_DELETER(CRYPTO_BUFFER_POOL, CRYPTO_BUFFER_POOL_free)
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BORINGSSL_MAKE_DELETER(CRYPTO_BUFFER, CRYPTO_BUFFER_free)
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} // namespace bssl
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} /* extern C++ */
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#endif
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#endif // OPENSSL_HEADER_POOL_H
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