| /* 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_POOL_H | |
| #define OPENSSL_HEADER_POOL_H | |
| #include <openssl/base.h> | |
| #if defined(__cplusplus) | |
| extern "C" { | |
| #endif | |
| /* Buffers and buffer pools. | |
| * | |
| * |CRYPTO_BUFFER|s are simply reference-counted blobs. A |CRYPTO_BUFFER_POOL| | |
| * is an intern table for |CRYPTO_BUFFER|s. This allows for a single copy of a | |
| * given blob to be kept in memory and referenced from multiple places. */ | |
| /* CRYPTO_BUFFER_POOL_new returns a freshly allocated |CRYPTO_BUFFER_POOL| or | |
| * NULL on error. */ | |
| OPENSSL_EXPORT CRYPTO_BUFFER_POOL* CRYPTO_BUFFER_POOL_new(void); | |
| /* CRYPTO_BUFFER_POOL_free frees |pool|, which must be empty. */ | |
| OPENSSL_EXPORT void CRYPTO_BUFFER_POOL_free(CRYPTO_BUFFER_POOL *pool); | |
| /* CRYPTO_BUFFER_new returns a |CRYPTO_BUFFER| containing a copy of |data|, or | |
| * else NULL on error. If |pool| is not NULL then the returned value may be a | |
| * reference to a previously existing |CRYPTO_BUFFER| that contained the same | |
| * data. Otherwise, the returned, fresh |CRYPTO_BUFFER| will be added to the | |
| * pool. */ | |
| OPENSSL_EXPORT CRYPTO_BUFFER *CRYPTO_BUFFER_new(const uint8_t *data, size_t len, | |
| CRYPTO_BUFFER_POOL *pool); | |
| /* CRYPTO_BUFFER_new_from_CBS acts the same as |CRYPTO_BUFFER_new|. */ | |
| OPENSSL_EXPORT CRYPTO_BUFFER *CRYPTO_BUFFER_new_from_CBS( | |
| CBS *cbs, CRYPTO_BUFFER_POOL *pool); | |
| /* CRYPTO_BUFFER_free decrements the reference count of |buf|. If there are no | |
| * other references, or if the only remaining reference is from a pool, then | |
| * |buf| will be freed. */ | |
| OPENSSL_EXPORT void CRYPTO_BUFFER_free(CRYPTO_BUFFER *buf); | |
| /* CRYPTO_BUFFER_up_ref increments the reference count of |buf| and returns | |
| * one. */ | |
| OPENSSL_EXPORT int CRYPTO_BUFFER_up_ref(CRYPTO_BUFFER *buf); | |
| /* CRYPTO_BUFFER_data returns a pointer to the data contained in |buf|. */ | |
| OPENSSL_EXPORT const uint8_t *CRYPTO_BUFFER_data(const CRYPTO_BUFFER *buf); | |
| /* CRYPTO_BUFFER_len returns the length, in bytes, of the data contained in | |
| * |buf|. */ | |
| OPENSSL_EXPORT size_t CRYPTO_BUFFER_len(const CRYPTO_BUFFER *buf); | |
| /* CRYPTO_BUFFER_init_CBS initialises |out| to point at the data from |buf|. */ | |
| OPENSSL_EXPORT void CRYPTO_BUFFER_init_CBS(const CRYPTO_BUFFER *buf, CBS *out); | |
| #if defined(__cplusplus) | |
| } /* extern C */ | |
| extern "C++" { | |
| namespace bssl { | |
| BORINGSSL_MAKE_DELETER(CRYPTO_BUFFER_POOL, CRYPTO_BUFFER_POOL_free) | |
| BORINGSSL_MAKE_DELETER(CRYPTO_BUFFER, CRYPTO_BUFFER_free) | |
| } // namespace bssl | |
| } /* extern C++ */ | |
| #endif | |
| #endif // OPENSSL_HEADER_POOL_H |