mirror of
https://git.proxmox.com/git/libgit2
synced 2025-05-02 17:42:31 +00:00
bb742ede3d
1. The license header is technically not valid if it doesn't have a copyright signature. 2. The COPYING file has been updated with the different licenses used in the project. 3. The full GPLv2 header in each file annoys me.
101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
/*
|
|
* 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_git_odb_backend_h__
|
|
#define INCLUDE_git_odb_backend_h__
|
|
|
|
#include "common.h"
|
|
#include "types.h"
|
|
#include "oid.h"
|
|
|
|
/**
|
|
* @file git2/backend.h
|
|
* @brief Git custom backend functions
|
|
* @defgroup git_backend Git custom backend API
|
|
* @ingroup Git
|
|
* @{
|
|
*/
|
|
GIT_BEGIN_DECL
|
|
|
|
struct git_odb_stream;
|
|
|
|
/** An instance for a custom backend */
|
|
struct git_odb_backend {
|
|
git_odb *odb;
|
|
|
|
int (* read)(
|
|
void **, size_t *, git_otype *,
|
|
struct git_odb_backend *,
|
|
const git_oid *);
|
|
|
|
/* To find a unique object given a prefix
|
|
* of its oid.
|
|
* The oid given must be so that the
|
|
* remaining (GIT_OID_HEXSZ - len)*4 bits
|
|
* are 0s.
|
|
*/
|
|
int (* read_prefix)(
|
|
git_oid *,
|
|
void **, size_t *, git_otype *,
|
|
struct git_odb_backend *,
|
|
const git_oid *,
|
|
unsigned int);
|
|
|
|
int (* read_header)(
|
|
size_t *, git_otype *,
|
|
struct git_odb_backend *,
|
|
const git_oid *);
|
|
|
|
int (* write)(
|
|
git_oid *,
|
|
struct git_odb_backend *,
|
|
const void *,
|
|
size_t,
|
|
git_otype);
|
|
|
|
int (* writestream)(
|
|
struct git_odb_stream **,
|
|
struct git_odb_backend *,
|
|
size_t,
|
|
git_otype);
|
|
|
|
int (* readstream)(
|
|
struct git_odb_stream **,
|
|
struct git_odb_backend *,
|
|
const git_oid *);
|
|
|
|
int (* exists)(
|
|
struct git_odb_backend *,
|
|
const git_oid *);
|
|
|
|
void (* free)(struct git_odb_backend *);
|
|
};
|
|
|
|
/** A stream to read/write from a backend */
|
|
struct git_odb_stream {
|
|
struct git_odb_backend *backend;
|
|
int mode;
|
|
|
|
int (*read)(struct git_odb_stream *stream, char *buffer, size_t len);
|
|
int (*write)(struct git_odb_stream *stream, const char *buffer, size_t len);
|
|
int (*finalize_write)(git_oid *oid_p, struct git_odb_stream *stream);
|
|
void (*free)(struct git_odb_stream *stream);
|
|
};
|
|
|
|
/** Streaming mode */
|
|
typedef enum {
|
|
GIT_STREAM_RDONLY = (1 << 1),
|
|
GIT_STREAM_WRONLY = (1 << 2),
|
|
GIT_STREAM_RW = (GIT_STREAM_RDONLY | GIT_STREAM_WRONLY),
|
|
} git_odb_streammode;
|
|
|
|
GIT_EXTERN(int) git_odb_backend_pack(git_odb_backend **backend_out, const char *objects_dir);
|
|
GIT_EXTERN(int) git_odb_backend_loose(git_odb_backend **backend_out, const char *objects_dir);
|
|
|
|
GIT_END_DECL
|
|
|
|
#endif
|