thodg/libgit2/src/sha1.h

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• Hash : 7205a4d9
  Author :
  Date : 2012-10-23T19:30:04
  

  Use libcrypto's SHA-1 implementation when linking to it
  
  libcryto's SHA-1 implementation is measurably better than the one that
  ships with the library. If we link to it for HTTPS support already,
  use that implementation instead.
  
  Testing on a ~600MB of the linux repository, this reduces indexing
  time by 40% and removes the hashing from the top spot in the perf
  output.
  

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• src/sha1.h

• /*
   * Copyright (C) 2009-2012 the libgit2 contributors
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  
  #ifndef INCLUDE_sha1_h__
  #define INCLUDE_sha1_h__
  
  #ifdef OPENSSL_SHA
  # include <openssl/sha.h>
  
  #else
  typedef struct {
  	unsigned long long size;
  	unsigned int H[5];
  	unsigned int W[16];
  } blk_SHA_CTX;
  
  
  void git__blk_SHA1_Init(blk_SHA_CTX *ctx);
  void git__blk_SHA1_Update(blk_SHA_CTX *ctx, const void *dataIn, size_t len);
  void git__blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx);
  
  #define SHA_CTX		blk_SHA_CTX
  #define SHA1_Init	git__blk_SHA1_Init
  #define SHA1_Update	git__blk_SHA1_Update
  #define SHA1_Final	git__blk_SHA1_Final
  
  #endif // OPENSSL_SHA
  
  #endif
  

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