thodg/got/lib/got_repository_lib.h

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• Hash : 65cf1e80
  Author :
  Date : 2018-03-16T22:33:22
  

  revert the pack file handle cache again; needs more thought

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• lib/got_repository_lib.h

• /*
   * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
   *
   * Permission to use, copy, modify, and 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.
   */
  
  struct got_delta_cache_entry {
  	off_t data_offset;
  	uint8_t *delta_buf;
  	size_t delta_len;
  };
  
  #define GOT_DELTA_CACHE_SIZE	1024
  
  struct got_delta_cache {
  	char *path_packfile;
  	struct got_delta_cache_entry deltas[GOT_DELTA_CACHE_SIZE];
  };
  
  #define GOT_PACKIDX_CACHE_SIZE	64
  
  struct got_repository {
  	char *path;
  	char *path_git_dir;
  
  	/* The pack index cache speeds up search for packed objects. */
  	struct got_packidx_v2_hdr *packidx_cache[GOT_PACKIDX_CACHE_SIZE];
  
  	/* The delta cache speeds up reconstruction of packed objects. */
  	struct got_delta_cache delta_cache[GOT_PACKIDX_CACHE_SIZE];
  };
  
  

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