64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/* * Copyright (c) 2013, Kevin Greenan (kmgreen2@gmail.com)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY
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* THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _ALG_SIG_H
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#define _ALG_SIG_H
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typedef int (*galois_single_multiply_func)(int, int, int);
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typedef void (*galois_uninit_field_func)(int);
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struct jerasure_mult_routines {
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galois_single_multiply_func galois_single_multiply;
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galois_uninit_field_func galois_uninit_field;
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};
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#if defined(__MACOS__) || defined(__MACOSX__) || defined(__OSX__) || defined(__APPLE__)
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#define JERASURE_SONAME "libJerasure.dylib"
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#else
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#define JERASURE_SONAME "libJerasure.so"
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#endif
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typedef struct alg_sig_s
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{
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int gf_w;
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int sig_len;
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struct jerasure_mult_routines mult_routines;
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void *jerasure_sohandle;
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int *tbl1_l;
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int *tbl1_r;
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int *tbl2_l;
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int *tbl2_r;
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int *tbl3_l;
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int *tbl3_r;
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} alg_sig_t;
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alg_sig_t *init_alg_sig(int sig_len, int gf_w);
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void destroy_alg_sig(alg_sig_t* alg_sig_handle);
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int compute_alg_sig(alg_sig_t* alg_sig_handle, char *buf, int len, char *sig);
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int liberasurecode_crc32_alt(int crc, const void *buf, int size);
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#endif
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