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102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/**
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@file lzma.h
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This service provides dynamic access to LZMA.
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*/
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#ifndef LZMA_INCLUDED
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef MYSQL_ABI_CHECK
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#include <stdbool.h>
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#include <stdint.h>
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#include <stddef.h>
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#endif
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#ifndef MYSQL_DYNAMIC_PLUGIN
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#define provider_service_lzma provider_service_lzma_static
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#endif
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#ifndef LZMA_VERSION
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typedef enum
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{
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LZMA_OK = 0,
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LZMA_STREAM_END = 1,
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LZMA_NO_CHECK = 2,
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LZMA_UNSUPPORTED_CHECK = 3,
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LZMA_GET_CHECK = 4,
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LZMA_MEM_ERROR = 5,
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LZMA_MEMLIMIT_ERROR = 6,
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LZMA_FORMAT_ERROR = 7,
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LZMA_OPTIONS_ERROR = 8,
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LZMA_DATA_ERROR = 9,
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LZMA_BUF_ERROR = 10,
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LZMA_PROG_ERROR = 11,
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} lzma_ret;
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typedef struct
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{
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void *(*alloc)(void *opaque, size_t nmemb, size_t size);
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void (*free)(void *opaque, void *ptr);
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void *opaque;
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} lzma_allocator;
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typedef enum
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{
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LZMA_CHECK_NONE = 0,
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LZMA_CHECK_CRC32 = 1,
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LZMA_CHECK_CRC64 = 4,
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LZMA_CHECK_SHA256 = 10
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} lzma_check;
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#define lzma_stream_buffer_decode(...) provider_service_lzma->lzma_stream_buffer_decode_ptr (__VA_ARGS__)
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#define lzma_easy_buffer_encode(...) provider_service_lzma->lzma_easy_buffer_encode_ptr (__VA_ARGS__)
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#elif LZMA_VERSION < 50010030
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#define lzma_maybe_const
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#endif
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#ifndef lzma_maybe_const
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#define lzma_maybe_const const
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#endif
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#define DEFINE_lzma_stream_buffer_decode(NAME) NAME( \
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uint64_t *memlimit, \
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uint32_t flags, \
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lzma_maybe_const lzma_allocator *allocator, \
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const uint8_t *in, \
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size_t *in_pos, \
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size_t in_size, \
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uint8_t *out, \
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size_t *out_pos, \
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size_t out_size \
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)
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#define DEFINE_lzma_easy_buffer_encode(NAME) NAME( \
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uint32_t preset, \
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lzma_check check, \
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lzma_maybe_const lzma_allocator *allocator, \
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const uint8_t *in, \
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size_t in_size, \
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uint8_t *out, \
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size_t *out_pos, \
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size_t out_size \
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)
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struct provider_service_lzma_st
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{
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lzma_ret DEFINE_lzma_stream_buffer_decode((*lzma_stream_buffer_decode_ptr));
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lzma_ret DEFINE_lzma_easy_buffer_encode((*lzma_easy_buffer_encode_ptr));
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bool is_loaded;
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};
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extern struct provider_service_lzma_st *provider_service_lzma;
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#ifdef __cplusplus
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}
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#endif
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#define LZMA_INCLUDED
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#endif
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