int git_repository_index__weakptr(git_index **out, git_repository *repo)
{
int error = 0;
assert(out && repo);
if (repo->_index == NULL) {
git_buf index_path = GIT_BUF_INIT;
git_index *index;
if ((error = git_buf_joinpath(&index_path, repo->path_repository, GIT_INDEX_FILE)) < 0)
return error;
error = git_index_open(&index, index_path.ptr);
if (!error) {
GIT_REFCOUNT_OWN(index, repo);
index = (git_index*) git__compare_and_swap(&repo->_index, NULL, index);
if (index != NULL) {
GIT_REFCOUNT_OWN(index, NULL);
git_index_free(index);
}
error = git_index_set_caps(repo->_index, GIT_INDEXCAP_FROM_OWNER);
}
git_buf_free(&index_path);
}
*out = repo->_index;
return error;
}
int git_repository_odb__weakptr(git_odb **out, git_repository *repo)
{
int error = 0;
assert(repo && out);
if (repo->_odb == NULL) {
git_buf odb_path = GIT_BUF_INIT;
git_odb *odb;
if ((error = git_buf_joinpath(&odb_path, repo->path_repository, GIT_OBJECTS_DIR)) < 0)
return error;
error = git_odb_open(&odb, odb_path.ptr);
if (!error) {
GIT_REFCOUNT_OWN(odb, repo);
odb = (git_odb*) git__compare_and_swap(&repo->_odb, NULL, odb);
if (odb != NULL) {
GIT_REFCOUNT_OWN(odb, NULL);
git_odb_free(odb);
}
}
git_buf_free(&odb_path);
}
*out = repo->_odb;
return error;
}
static git_diff_driver_registry *git_repository_driver_registry(
git_repository *repo)
{
if (!repo->diff_drivers) {
git_diff_driver_registry *reg = git_diff_driver_registry_new();
reg = git__compare_and_swap(&repo->diff_drivers, NULL, reg);
if (reg != NULL) /* if we race, free losing allocation */
git_diff_driver_registry_free(reg);
}
if (!repo->diff_drivers)
giterr_set(GITERR_REPOSITORY, "Unable to create diff driver registry");
return repo->diff_drivers;
}
int git_repository_config__weakptr(git_config **out, git_repository *repo)
{
int error = 0;
if (repo->_config == NULL) {
git_buf global_buf = GIT_BUF_INIT;
git_buf xdg_buf = GIT_BUF_INIT;
git_buf system_buf = GIT_BUF_INIT;
git_config *config;
git_config_find_global(&global_buf);
git_config_find_xdg(&xdg_buf);
git_config_find_system(&system_buf);
/* If there is no global file, open a backend for it anyway */
if (git_buf_len(&global_buf) == 0)
git_config__global_location(&global_buf);
error = load_config(
&config, repo,
path_unless_empty(&global_buf),
path_unless_empty(&xdg_buf),
path_unless_empty(&system_buf));
if (!error) {
GIT_REFCOUNT_OWN(config, repo);
config = (git_config*) git__compare_and_swap(&repo->_config, NULL, config);
if (config != NULL) {
GIT_REFCOUNT_OWN(config, NULL);
git_config_free(config);
}
}
git_buf_free(&global_buf);
git_buf_free(&xdg_buf);
git_buf_free(&system_buf);
}
*out = repo->_config;
return error;
}
static int attr_cache_remove(git_attr_cache *cache, git_attr_file *file)
{
int error = 0;
git_attr_file_entry *entry;
if (!file)
return 0;
if ((error = attr_cache_lock(cache)) < 0)
return error;
if ((entry = attr_cache_lookup_entry(cache, file->entry->path)) != NULL)
file = git__compare_and_swap(&entry->file[file->source], file, NULL);
attr_cache_unlock(cache);
if (file) {
GIT_REFCOUNT_OWN(file, NULL);
git_attr_file__free(file);
}
return error;
}
/* insert entry or replace existing if we raced with another thread */
static int attr_cache_upsert(git_attr_cache *cache, git_attr_file *file)
{
git_attr_file_entry *entry;
git_attr_file *old;
if (attr_cache_lock(cache) < 0)
return -1;
entry = attr_cache_lookup_entry(cache, file->entry->path);
GIT_REFCOUNT_OWN(file, entry);
GIT_REFCOUNT_INC(file);
old = git__compare_and_swap(
&entry->file[file->source], entry->file[file->source], file);
if (old) {
GIT_REFCOUNT_OWN(old, NULL);
git_attr_file__free(old);
}
attr_cache_unlock(cache);
return 0;
}
int git_repository_refdb__weakptr(git_refdb **out, git_repository *repo)
{
int error = 0;
assert(out && repo);
if (repo->_refdb == NULL) {
git_refdb *refdb;
error = git_refdb_open(&refdb, repo);
if (!error) {
GIT_REFCOUNT_OWN(refdb, repo);
refdb = (git_refdb*) git__compare_and_swap(&repo->_refdb, NULL, refdb);
if (refdb != NULL) {
GIT_REFCOUNT_OWN(refdb, NULL);
git_refdb_free(refdb);
}
}
}
*out = repo->_refdb;
return error;
}
