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author | Devtools Arcadia <arcadia-devtools@yandex-team.ru> | 2022-02-07 18:08:42 +0300 |
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committer | Devtools Arcadia <arcadia-devtools@mous.vla.yp-c.yandex.net> | 2022-02-07 18:08:42 +0300 |
commit | 1110808a9d39d4b808aef724c861a2e1a38d2a69 (patch) | |
tree | e26c9fed0de5d9873cce7e00bc214573dc2195b7 /contrib/libs/hyperscan/runtime_avx512/hs_common.h | |
download | ydb-1110808a9d39d4b808aef724c861a2e1a38d2a69.tar.gz |
intermediate changes
ref:cde9a383711a11544ce7e107a78147fb96cc4029
Diffstat (limited to 'contrib/libs/hyperscan/runtime_avx512/hs_common.h')
-rw-r--r-- | contrib/libs/hyperscan/runtime_avx512/hs_common.h | 596 |
1 files changed, 596 insertions, 0 deletions
diff --git a/contrib/libs/hyperscan/runtime_avx512/hs_common.h b/contrib/libs/hyperscan/runtime_avx512/hs_common.h new file mode 100644 index 0000000000..13bcfa7003 --- /dev/null +++ b/contrib/libs/hyperscan/runtime_avx512/hs_common.h @@ -0,0 +1,596 @@ +/* + * Copyright (c) 2015-2019, Intel Corporation + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Intel Corporation nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef HS_AVX512_COMMON_H +#define HS_AVX512_COMMON_H + +#if defined(_WIN32) +#define HS_CDECL __cdecl +#else +#define HS_CDECL +#endif +#include <stdlib.h> + +/** + * @file + * @brief The Hyperscan common API definition. + * + * Hyperscan is a high speed regular expression engine. + * + * This header contains functions available to both the Hyperscan compiler and + * runtime. + */ + +#ifdef __cplusplus +extern "C" +{ +#endif + +struct hs_database; + +/** + * A Hyperscan pattern database. + * + * Generated by one of the Hyperscan compiler functions: + * - @ref hs_compile() + * - @ref hs_compile_multi() + * - @ref hs_compile_ext_multi() + */ +typedef struct hs_database hs_database_t; + +/** + * A type for errors returned by Hyperscan functions. + */ +typedef int hs_error_t; + +/** + * Free a compiled pattern database. + * + * The free callback set by @ref hs_set_database_allocator() (or @ref + * hs_set_allocator()) will be used by this function. + * + * @param db + * A compiled pattern database. NULL may also be safely provided, in which + * case the function does nothing. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_free_database(hs_database_t *db); + +/** + * Serialize a pattern database to a stream of bytes. + * + * The allocator callback set by @ref hs_set_misc_allocator() (or @ref + * hs_set_allocator()) will be used by this function. + * + * @param db + * A compiled pattern database. + * + * @param bytes + * On success, a pointer to an array of bytes will be returned here. + * These bytes can be subsequently relocated or written to disk. The + * caller is responsible for freeing this block. + * + * @param length + * On success, the number of bytes in the generated byte array will be + * returned here. + * + * @return + * @ref HS_SUCCESS on success, @ref HS_NOMEM if the byte array cannot be + * allocated, other values may be returned if errors are detected. + */ +hs_error_t avx512_hs_serialize_database(const hs_database_t *db, char **bytes, + size_t *length); + +/** + * Reconstruct a pattern database from a stream of bytes previously generated + * by @ref hs_serialize_database(). + * + * This function will allocate sufficient space for the database using the + * allocator set with @ref hs_set_database_allocator() (or @ref + * hs_set_allocator()); to use a pre-allocated region of memory, use the @ref + * hs_deserialize_database_at() function. + * + * @param bytes + * A byte array generated by @ref hs_serialize_database() representing a + * compiled pattern database. + * + * @param length + * The length of the byte array generated by @ref hs_serialize_database(). + * This should be the same value as that returned by @ref + * hs_serialize_database(). + * + * @param db + * On success, a pointer to a newly allocated @ref hs_database_t will be + * returned here. This database can then be used for scanning, and + * eventually freed by the caller using @ref hs_free_database(). + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_deserialize_database(const char *bytes, + const size_t length, + hs_database_t **db); + +/** + * Reconstruct a pattern database from a stream of bytes previously generated + * by @ref hs_serialize_database() at a given memory location. + * + * This function (unlike @ref hs_deserialize_database()) will write the + * reconstructed database to the memory location given in the @p db parameter. + * The amount of space required at this location can be determined with the + * @ref hs_serialized_database_size() function. + * + * @param bytes + * A byte array generated by @ref hs_serialize_database() representing a + * compiled pattern database. + * + * @param length + * The length of the byte array generated by @ref hs_serialize_database(). + * This should be the same value as that returned by @ref + * hs_serialize_database(). + * + * @param db + * Pointer to an 8-byte aligned block of memory of sufficient size to hold + * the deserialized database. On success, the reconstructed database will + * be written to this location. This database can then be used for pattern + * matching. The user is responsible for freeing this memory; the @ref + * hs_free_database() call should not be used. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_deserialize_database_at(const char *bytes, + const size_t length, + hs_database_t *db); + +/** + * Provides the size of the stream state allocated by a single stream opened + * against the given database. + * + * @param database + * Pointer to a compiled (streaming mode) pattern database. + * + * @param stream_size + * On success, the size in bytes of an individual stream opened against the + * given database is placed in this parameter. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_stream_size(const hs_database_t *database, + size_t *stream_size); + +/** + * Provides the size of the given database in bytes. + * + * @param database + * Pointer to compiled pattern database. + * + * @param database_size + * On success, the size of the compiled database in bytes is placed in this + * parameter. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_database_size(const hs_database_t *database, + size_t *database_size); + +/** + * Utility function for reporting the size that would be required by a + * database if it were deserialized. + * + * This can be used to allocate a shared memory region or other "special" + * allocation prior to deserializing with the @ref hs_deserialize_database_at() + * function. + * + * @param bytes + * Pointer to a byte array generated by @ref hs_serialize_database() + * representing a compiled pattern database. + * + * @param length + * The length of the byte array generated by @ref hs_serialize_database(). + * This should be the same value as that returned by @ref + * hs_serialize_database(). + * + * @param deserialized_size + * On success, the size of the compiled database that would be generated + * by @ref hs_deserialize_database_at() is returned here. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_serialized_database_size(const char *bytes, + const size_t length, + size_t *deserialized_size); + +/** + * Utility function providing information about a database. + * + * @param database + * Pointer to a compiled database. + * + * @param info + * On success, a string containing the version and platform information for + * the supplied database is placed in the parameter. The string is + * allocated using the allocator supplied in @ref hs_set_misc_allocator() + * (or malloc() if no allocator was set) and should be freed by the caller. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_database_info(const hs_database_t *database, + char **info); + +/** + * Utility function providing information about a serialized database. + * + * @param bytes + * Pointer to a serialized database. + * + * @param length + * Length in bytes of the serialized database. + * + * @param info + * On success, a string containing the version and platform information + * for the supplied serialized database is placed in the parameter. The + * string is allocated using the allocator supplied in @ref + * hs_set_misc_allocator() (or malloc() if no allocator was set) and + * should be freed by the caller. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_serialized_database_info(const char *bytes, + size_t length, char **info); + +/** + * The type of the callback function that will be used by Hyperscan to allocate + * more memory at runtime as required, for example in @ref hs_open_stream() to + * allocate stream state. + * + * If Hyperscan is to be used in a multi-threaded, or similarly concurrent + * environment, the allocation function will need to be re-entrant, or + * similarly safe for concurrent use. + * + * @param size + * The number of bytes to allocate. + * @return + * A pointer to the region of memory allocated, or NULL on error. + */ +typedef void *(HS_CDECL *hs_alloc_t)(size_t size); + +/** + * The type of the callback function that will be used by Hyperscan to free + * memory regions previously allocated using the @ref hs_alloc_t function. + * + * @param ptr + * The region of memory to be freed. + */ +typedef void (HS_CDECL *hs_free_t)(void *ptr); + +/** + * Set the allocate and free functions used by Hyperscan for allocating + * memory at runtime for stream state, scratch space, database bytecode, + * and various other data structure returned by the Hyperscan API. + * + * The function is equivalent to calling @ref hs_set_stream_allocator(), + * @ref hs_set_scratch_allocator(), @ref hs_set_database_allocator() and + * @ref hs_set_misc_allocator() with the provided parameters. + * + * This call will override any previous allocators that have been set. + * + * Note: there is no way to change the allocator used for temporary objects + * created during the various compile calls (@ref hs_compile(), @ref + * hs_compile_multi(), @ref hs_compile_ext_multi()). + * + * @param alloc_func + * A callback function pointer that allocates memory. This function must + * return memory suitably aligned for the largest representable data type + * on this platform. + * + * @param free_func + * A callback function pointer that frees allocated memory. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_set_allocator(hs_alloc_t alloc_func, + hs_free_t free_func); + +/** + * Set the allocate and free functions used by Hyperscan for allocating memory + * for database bytecode produced by the compile calls (@ref hs_compile(), @ref + * hs_compile_multi(), @ref hs_compile_ext_multi()) and by database + * deserialization (@ref hs_deserialize_database()). + * + * If no database allocation functions are set, or if NULL is used in place of + * both parameters, then memory allocation will default to standard methods + * (such as the system malloc() and free() calls). + * + * This call will override any previous database allocators that have been set. + * + * Note: the database allocator may also be set by calling @ref + * hs_set_allocator(). + * + * Note: there is no way to change how temporary objects created during the + * various compile calls (@ref hs_compile(), @ref hs_compile_multi(), @ref + * hs_compile_ext_multi()) are allocated. + * + * @param alloc_func + * A callback function pointer that allocates memory. This function must + * return memory suitably aligned for the largest representable data type + * on this platform. + * + * @param free_func + * A callback function pointer that frees allocated memory. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_set_database_allocator(hs_alloc_t alloc_func, + hs_free_t free_func); + +/** + * Set the allocate and free functions used by Hyperscan for allocating memory + * for items returned by the Hyperscan API such as @ref hs_compile_error_t, @ref + * hs_expr_info_t and serialized databases. + * + * If no misc allocation functions are set, or if NULL is used in place of both + * parameters, then memory allocation will default to standard methods (such as + * the system malloc() and free() calls). + * + * This call will override any previous misc allocators that have been set. + * + * Note: the misc allocator may also be set by calling @ref hs_set_allocator(). + * + * @param alloc_func + * A callback function pointer that allocates memory. This function must + * return memory suitably aligned for the largest representable data type + * on this platform. + * + * @param free_func + * A callback function pointer that frees allocated memory. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_set_misc_allocator(hs_alloc_t alloc_func, + hs_free_t free_func); + +/** + * Set the allocate and free functions used by Hyperscan for allocating memory + * for scratch space by @ref hs_alloc_scratch() and @ref hs_clone_scratch(). + * + * If no scratch allocation functions are set, or if NULL is used in place of + * both parameters, then memory allocation will default to standard methods + * (such as the system malloc() and free() calls). + * + * This call will override any previous scratch allocators that have been set. + * + * Note: the scratch allocator may also be set by calling @ref + * hs_set_allocator(). + * + * @param alloc_func + * A callback function pointer that allocates memory. This function must + * return memory suitably aligned for the largest representable data type + * on this platform. + * + * @param free_func + * A callback function pointer that frees allocated memory. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_set_scratch_allocator(hs_alloc_t alloc_func, + hs_free_t free_func); + +/** + * Set the allocate and free functions used by Hyperscan for allocating memory + * for stream state by @ref hs_open_stream(). + * + * If no stream allocation functions are set, or if NULL is used in place of + * both parameters, then memory allocation will default to standard methods + * (such as the system malloc() and free() calls). + * + * This call will override any previous stream allocators that have been set. + * + * Note: the stream allocator may also be set by calling @ref + * hs_set_allocator(). + * + * @param alloc_func + * A callback function pointer that allocates memory. This function must + * return memory suitably aligned for the largest representable data type + * on this platform. + * + * @param free_func + * A callback function pointer that frees allocated memory. + * + * @return + * @ref HS_SUCCESS on success, other values on failure. + */ +hs_error_t avx512_hs_set_stream_allocator(hs_alloc_t alloc_func, + hs_free_t free_func); + +/** + * Utility function for identifying this release version. + * + * @return + * A string containing the version number of this release build and the + * date of the build. It is allocated statically, so it does not need to + * be freed by the caller. + */ +const char * avx512_hs_version(void); + +/** + * Utility function to test the current system architecture. + * + * Hyperscan requires the Supplemental Streaming SIMD Extensions 3 instruction + * set. This function can be called on any x86 platform to determine if the + * system provides the required instruction set. + * + * This function does not test for more advanced features if Hyperscan has + * been built for a more specific architecture, for example the AVX2 + * instruction set. + * + * @return + * @ref HS_SUCCESS on success, @ref HS_ARCH_ERROR if system does not + * support Hyperscan. + */ +hs_error_t avx512_hs_valid_platform(void); + +/** + * @defgroup HS_ERROR hs_error_t values + * + * @{ + */ + +/** + * The engine completed normally. + */ +#define HS_SUCCESS 0 + +/** + * A parameter passed to this function was invalid. + * + * This error is only returned in cases where the function can detect an + * invalid parameter -- it cannot be relied upon to detect (for example) + * pointers to freed memory or other invalid data. + */ +#define HS_INVALID (-1) + +/** + * A memory allocation failed. + */ +#define HS_NOMEM (-2) + +/** + * The engine was terminated by callback. + * + * This return value indicates that the target buffer was partially scanned, + * but that the callback function requested that scanning cease after a match + * was located. + */ +#define HS_SCAN_TERMINATED (-3) + +/** + * The pattern compiler failed, and the @ref hs_compile_error_t should be + * inspected for more detail. + */ +#define HS_COMPILER_ERROR (-4) + +/** + * The given database was built for a different version of Hyperscan. + */ +#define HS_DB_VERSION_ERROR (-5) + +/** + * The given database was built for a different platform (i.e., CPU type). + */ +#define HS_DB_PLATFORM_ERROR (-6) + +/** + * The given database was built for a different mode of operation. This error + * is returned when streaming calls are used with a block or vectored database + * and vice versa. + */ +#define HS_DB_MODE_ERROR (-7) + +/** + * A parameter passed to this function was not correctly aligned. + */ +#define HS_BAD_ALIGN (-8) + +/** + * The memory allocator (either malloc() or the allocator set with @ref + * hs_set_allocator()) did not correctly return memory suitably aligned for the + * largest representable data type on this platform. + */ +#define HS_BAD_ALLOC (-9) + +/** + * The scratch region was already in use. + * + * This error is returned when Hyperscan is able to detect that the scratch + * region given is already in use by another Hyperscan API call. + * + * A separate scratch region, allocated with @ref hs_alloc_scratch() or @ref + * hs_clone_scratch(), is required for every concurrent caller of the Hyperscan + * API. + * + * For example, this error might be returned when @ref hs_scan() has been + * called inside a callback delivered by a currently-executing @ref hs_scan() + * call using the same scratch region. + * + * Note: Not all concurrent uses of scratch regions may be detected. This error + * is intended as a best-effort debugging tool, not a guarantee. + */ +#define HS_SCRATCH_IN_USE (-10) + +/** + * Unsupported CPU architecture. + * + * This error is returned when Hyperscan is able to detect that the current + * system does not support the required instruction set. + * + * At a minimum, Hyperscan requires Supplemental Streaming SIMD Extensions 3 + * (SSSE3). + */ +#define HS_ARCH_ERROR (-11) + +/** + * Provided buffer was too small. + * + * This error indicates that there was insufficient space in the buffer. The + * call should be repeated with a larger provided buffer. + * + * Note: in this situation, it is normal for the amount of space required to be + * returned in the same manner as the used space would have been returned if the + * call was successful. + */ +#define HS_INSUFFICIENT_SPACE (-12) + +/** + * Unexpected internal error. + * + * This error indicates that there was unexpected matching behaviors. This + * could be related to invalid usage of stream and scratch space or invalid memory + * operations by users. + * + */ +#define HS_UNKNOWN_ERROR (-13) + +/** @} */ + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* HS_AVX512_COMMON_H */ |