thodg/libgit2/src/filebuf.h

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• Hash : c103d7b4
  Author :
  Date : 2011-09-29T15:49:28
  

  odb: Pass compression settings to filebuf

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• src/filebuf.h

• /*
   * Copyright (C) 2009-2011 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_filebuf_h__
  #define INCLUDE_filebuf_h__
  
  #include "fileops.h"
  #include "hash.h"
  #include "git2/zlib.h"
  
  #ifdef GIT_THREADS
  #	define GIT_FILEBUF_THREADS
  #endif
  
  #define GIT_FILEBUF_HASH_CONTENTS		(1 << 0)
  #define GIT_FILEBUF_APPEND				(1 << 2)
  #define GIT_FILEBUF_FORCE				(1 << 3)
  #define GIT_FILEBUF_TEMPORARY			(1 << 4)
  #define GIT_FILEBUF_DEFLATE_SHIFT		(5)
  
  #define GIT_FILELOCK_EXTENSION ".lock\0"
  #define GIT_FILELOCK_EXTLENGTH 6
  
  struct git_filebuf {
  	char *path_original;
  	char *path_lock;
  
  	int (*write)(struct git_filebuf *file, void *source, size_t len);
  
  	git_hash_ctx *digest;
  
  	unsigned char *buffer;
  	unsigned char *z_buf;
  
  	z_stream zs;
  	int flush_mode;
  
  	size_t buf_size, buf_pos;
  	git_file fd;
  };
  
  typedef struct git_filebuf git_filebuf;
  
  int git_filebuf_write(git_filebuf *lock, const void *buff, size_t len);
  int git_filebuf_reserve(git_filebuf *file, void **buff, size_t len);
  int git_filebuf_printf(git_filebuf *file, const char *format, ...) GIT_FORMAT_PRINTF(2, 3);
  
  int git_filebuf_open(git_filebuf *lock, const char *path, int flags);
  int git_filebuf_commit(git_filebuf *lock);
  int git_filebuf_commit_at(git_filebuf *lock, const char *path);
  void git_filebuf_cleanup(git_filebuf *lock);
  int git_filebuf_hash(git_oid *oid, git_filebuf *file);
  
  #endif
  

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