refdb.h

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Author : Edward Thomson
Date : 2026-06-13 17:01:04
Hash : e32cb67d
Message : docs: specify out params
include/git2/refdb.h
/*
 * 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.
 */
#ifndef INCLUDE_git_refdb_h__
#define INCLUDE_git_refdb_h__

#include "common.h"
#include "types.h"
#include "oid.h"
#include "refs.h"

/**
 * @file git2/refdb.h
 * @brief A database for references (branches and tags)
 * @defgroup git_refdb A database for references (branches and tags)
 * @ingroup Git
 * @{
 */
GIT_BEGIN_DECL

/** The type of the refdb as determined by "extensions.refStorage". */
typedef enum {
	GIT_REFDB_FILES = 1, /**< Files backend using loose and packed refs. */
	GIT_REFDB_REFTABLE = 2 /**< Reftable backend. */
} git_refdb_t;

/**
 * Create a new reference database with no backends.
 *
 * Before the Ref DB can be used for read/writing, a custom database
 * backend must be manually set using `git_refdb_set_backend()`
 *
 * @param[out] out location to store the database pointer, if opened.
 *             Set to NULL if the open failed.
 * @param repo the repository
 * @return 0 or an error code
 */
GIT_EXTERN(int) git_refdb_new(git_refdb **out, git_repository *repo);

/**
 * Create a new reference database and automatically add
 * the default backends:
 *
 *  - git_refdb_dir: read and write loose and packed refs
 *      from disk, assuming the repository dir as the folder
 *
 * @param[out] out location to store the database pointer, if opened.
 *             Set to NULL if the open failed.
 * @param repo the repository
 * @return 0 or an error code
 */
GIT_EXTERN(int) git_refdb_open(git_refdb **out, git_repository *repo);

/**
 * Suggests that the given refdb compress or optimize its references.
 * This mechanism is implementation specific.  For on-disk reference
 * databases, for example, this may pack all loose references.
 *
 * @param refdb The reference database to optimize.
 * @return 0 or an error code.
 */
GIT_EXTERN(int) git_refdb_compress(git_refdb *refdb);

/**
 * Close an open reference database.
 *
 * @param refdb reference database pointer or NULL
 */
GIT_EXTERN(void) git_refdb_free(git_refdb *refdb);

/** @} */
GIT_END_DECL

#endif
kc3-lang/libgit2/include/git2/refdb.h

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