thodg/got/include/got_object.h

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  Commit

• Author : Stefan Sperling
  Date : 2018-01-17 21:59:05
  Hash : 6c00b545
  Message : open packed objects correctly; don't worry about their contents yet

• include/got_object.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_zstream_buf {
  	z_stream z;
  	char *inbuf;
  	size_t inlen;
  	char *outbuf;
  	size_t outlen;
  	int flags;
  #define GOT_ZSTREAM_F_HAVE_MORE 0x01
  };
  
  struct got_object_id {
  	u_int8_t sha1[SHA1_DIGEST_LENGTH];
  };
  
  struct got_blob_object {
  	FILE *f;
  	struct got_zstream_buf zb;
  	size_t hdrlen;
  	struct got_object_id id;
  };
  
  struct got_tree_entry {
  	SIMPLEQ_ENTRY(got_tree_entry) entry;
  	mode_t mode;
  	char *name;
  	struct got_object_id id;
  };
  
  struct got_tree_object {
  	int nentries;
  	SIMPLEQ_HEAD(, got_tree_entry) entries;
  };
  
  struct got_parent_id {
  	SIMPLEQ_ENTRY(got_parent_id) entry;
  	struct got_object_id id;
  };
  
  SIMPLEQ_HEAD(got_parent_id_list, got_parent_id);
  
  struct got_commit_object {
  	struct got_object_id tree_id;
  	unsigned int nparents;
  	SIMPLEQ_HEAD(, got_parent_id) parent_ids;
  	char *author;
  	char *committer;
  	char *logmsg;
  };
  
  struct got_object {
  	int type;
  #define GOT_OBJ_TYPE_COMMIT		1
  #define GOT_OBJ_TYPE_TREE		2
  #define GOT_OBJ_TYPE_BLOB		3
  #define GOT_OBJ_TYPE_TAG		4
  /* 5 is reserved */
  #define GOT_OBJ_TYPE_OFFSET_DELTA	6
  #define GOT_OBJ_TYPE_REF_DELTA		7
  
  	int flags;
  #define GOT_OBJ_FLAG_PACKED		0x01
  
  	size_t hdrlen;
  	size_t size;
  	struct got_object_id id;
  
  	char *path_packfile;
  	off_t pack_offset;
  };
  
  struct got_repository;
  
  char *got_object_id_str(struct got_object_id *, char *, size_t);
  int got_object_id_cmp(struct got_object_id *, struct got_object_id *);
  const char *got_object_get_type_tag(int);
  const struct got_error *got_object_open(struct got_object **,
      struct got_repository *, struct got_object_id *);
  void got_object_close(struct got_object *);
  const struct got_error *got_object_commit_open(struct got_commit_object **,
      struct got_repository *, struct got_object *);
  void got_object_commit_close(struct got_commit_object *);
  const struct got_error *got_object_tree_open(struct got_tree_object **,
      struct got_repository *, struct got_object *);
  void got_object_tree_close(struct got_tree_object *);
  const struct got_error *got_object_blob_open(struct got_blob_object **,
      struct got_repository *, struct got_object *, size_t);
  void got_object_blob_close(struct got_blob_object *);
  const struct got_error *got_object_blob_read_block(struct got_blob_object *,
      size_t *);