diff options
Diffstat (limited to 'include/git2/odb_backend.h')
| -rw-r--r-- | include/git2/odb_backend.h | 61 |
1 files changed, 55 insertions, 6 deletions
diff --git a/include/git2/odb_backend.h b/include/git2/odb_backend.h index f4620f5f4..dbc3981f6 100644 --- a/include/git2/odb_backend.h +++ b/include/git2/odb_backend.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2012 the libgit2 contributors + * Copyright (C) the libgit2 contributors. All rights reserved. * * This file is part of libgit2, distributed under the GNU GPL v2 with * a Linking Exception. For full terms see the included COPYING file. @@ -10,6 +10,7 @@ #include "common.h" #include "types.h" #include "oid.h" +#include "indexer.h" /** * @file git2/backend.h @@ -21,11 +22,24 @@ GIT_BEGIN_DECL struct git_odb_stream; +struct git_odb_writepack; -/** An instance for a custom backend */ +/** + * Function type for callbacks from git_odb_foreach. + */ +typedef int (*git_odb_foreach_cb)(const git_oid *id, void *payload); + +/** + * An instance for a custom backend + */ struct git_odb_backend { + unsigned int version; git_odb *odb; + /* read and read_prefix each return to libgit2 a buffer which + * will be freed later. The buffer should be allocated using + * the function git_odb_backend_malloc to ensure that it can + * be safely freed later. */ int (* read)( void **, size_t *, git_otype *, struct git_odb_backend *, @@ -42,13 +56,17 @@ struct git_odb_backend { void **, size_t *, git_otype *, struct git_odb_backend *, const git_oid *, - unsigned int); + size_t); int (* read_header)( size_t *, git_otype *, struct git_odb_backend *, const git_oid *); + /* The writer may assume that the object + * has already been hashed and is passed + * in the first parameter. + */ int (* write)( git_oid *, struct git_odb_backend *, @@ -71,9 +89,25 @@ struct git_odb_backend { struct git_odb_backend *, const git_oid *); + int (* refresh)(struct git_odb_backend *); + + int (* foreach)( + struct git_odb_backend *, + git_odb_foreach_cb cb, + void *payload); + + int (* writepack)( + struct git_odb_writepack **, + struct git_odb_backend *, + git_transfer_progress_callback progress_cb, + void *progress_payload); + void (* free)(struct git_odb_backend *); }; +#define GIT_ODB_BACKEND_VERSION 1 +#define GIT_ODB_BACKEND_INIT {GIT_ODB_BACKEND_VERSION} + /** Streaming mode */ enum { GIT_STREAM_RDONLY = (1 << 1), @@ -84,7 +118,7 @@ enum { /** A stream to read/write from a backend */ struct git_odb_stream { struct git_odb_backend *backend; - int mode; + unsigned 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); @@ -92,8 +126,23 @@ struct git_odb_stream { void (*free)(struct git_odb_stream *stream); }; -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, int compression_level, int do_fsync); +/** A stream to write a pack file to the ODB */ +struct git_odb_writepack { + struct git_odb_backend *backend; + + int (*add)(struct git_odb_writepack *writepack, const void *data, size_t size, git_transfer_progress *stats); + int (*commit)(struct git_odb_writepack *writepack, git_transfer_progress *stats); + void (*free)(struct git_odb_writepack *writepack); +}; + +GIT_EXTERN(void *) git_odb_backend_malloc(git_odb_backend *backend, size_t len); + +/** + * Constructors for in-box ODB backends. + */ +GIT_EXTERN(int) git_odb_backend_pack(git_odb_backend **out, const char *objects_dir); +GIT_EXTERN(int) git_odb_backend_loose(git_odb_backend **out, const char *objects_dir, int compression_level, int do_fsync); +GIT_EXTERN(int) git_odb_backend_one_pack(git_odb_backend **out, const char *index_file); GIT_END_DECL |