thodg/libgit2/src/odb.h

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• Hash : 282283ac
  Author :
  Date : 2012-05-04T16:46:46
  

  Fix valgrind issues There are three changes here: - correctly propogate error code from failed object lookups - make zlib inflate use our allocators - add OID to notfound error in ODB lookups

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• src/odb.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_odb_h__
  #define INCLUDE_odb_h__
  
  #include "git2/odb.h"
  #include "git2/oid.h"
  #include "git2/types.h"
  
  #include "vector.h"
  #include "cache.h"
  #include "posix.h"
  
  #define GIT_OBJECTS_DIR "objects/"
  #define GIT_OBJECT_DIR_MODE 0777
  #define GIT_OBJECT_FILE_MODE 0444
  
  /* DO NOT EXPORT */
  typedef struct {
  	void *data;			/**< Raw, decompressed object data. */
  	size_t len;			/**< Total number of bytes in data. */
  	git_otype type;		/**< Type of this object. */
  } git_rawobj;
  
  /* EXPORT */
  struct git_odb_object {
  	git_cached_obj cached;
  	git_rawobj raw;
  };
  
  /* EXPORT */
  struct git_odb {
  	git_refcount rc;
  	git_vector backends;
  	git_cache cache;
  };
  
  /*
   * Hash a git_rawobj internally.
   * The `git_rawobj` is supposed to be previously initialized
   */
  int git_odb__hashobj(git_oid *id, git_rawobj *obj);
  
  /*
   * Hash an open file descriptor.
   * This is a performance call when the contents of a fd need to be hashed,
   * but the fd is already open and we have the size of the contents.
   *
   * Saves us some `stat` calls.
   *
   * The fd is never closed, not even on error. It must be opened and closed
   * by the caller
   */
  int git_odb__hashfd(git_oid *out, git_file fd, size_t size, git_otype type);
  
  /*
   * Hash a `path`, assuming it could be a POSIX symlink: if the path is a symlink,
   * then the raw contents of the symlink will be hashed. Otherwise, this will
   * fallback to `git_odb__hashfd`.
   *
   * The hash type for this call is always `GIT_OBJ_BLOB` because symlinks may only
   * point to blobs.
   */
  int git_odb__hashlink(git_oid *out, const char *path);
  
  /*
   * Generate a GIT_ENOTFOUND error for the ODB.
   */
  int git_odb__error_notfound(const char *message, const git_oid *oid);
  
  /*
   * Generate a GIT_EAMBIGUOUS error for the ODB.
   */
  int git_odb__error_ambiguous(const char *message);
  
  #endif
  

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