| /* |
| * 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 an open file descriptor applying an array of filters |
| * Acts just like git_odb__hashfd with the addition of filters... |
| */ |
| int git_odb__hashfd_filtered( |
| git_oid *out, git_file fd, size_t len, git_otype type, git_vector *filters); |
| |
| /* |
| * 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); |
| |
| /* |
| * Attempt to read object header or just return whole object if it could |
| * not be read. |
| */ |
| int git_odb__read_header_or_object( |
| git_odb_object **out, size_t *len_p, git_otype *type_p, |
| git_odb *db, const git_oid *id); |
| |
| #endif |