Function yaml_lock_acquire

src/cli/config_yaml_edit.c:368–501

#endif

static int yaml_lock_acquire(const char *path, yaml_config_lock_t *lock) {
    memset(lock, 0, sizeof(*lock));
#ifdef _WIN32
    lock->handle = INVALID_HANDLE_VALUE;
#else
    lock->descriptor = -1;
#endif
    if (yaml_build_lock_path(path, &lock->path) != 0) {
        return YAML_ERROR;
    }

#ifdef _WIN32
    wchar_t *wide_path = cbm_utf8_to_wide(lock->path);
    if (!wide_path) {
        free(lock->path);
        lock->path = NULL;
        return YAML_ERROR;
    }
    if (!CreateDirectoryW(wide_path, NULL)) {
        free(wide_path);
        free(lock->path);
        lock->path = NULL;
        return YAML_ERROR;
    }
    HANDLE handle = CreateFileW(wide_path, DELETE | FILE_READ_ATTRIBUTES,
                                FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
                                FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, NULL);
    if (handle == INVALID_HANDLE_VALUE) {
        (void)RemoveDirectoryW(wide_path);
        free(wide_path);
        free(lock->path);
        lock->path = NULL;
        return YAML_ERROR;
    }
    BY_HANDLE_FILE_INFORMATION created_info;
    if (!GetFileInformationByHandle(handle, &created_info) ||
        (created_info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0 ||
        (created_info.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) != 0) {
        yaml_remove_open_lock_directory(handle);
        free(wide_path);
        free(lock->path);
        lock->path = NULL;
        return YAML_ERROR;
    }
#ifdef CBM_YAML_ENABLE_TEST_API
    if (yaml_lock_postcreate_test_hook) {
        yaml_lock_postcreate_test_hook(lock->path, yaml_lock_postcreate_test_context);
    }
#endif
    BY_HANDLE_FILE_INFORMATION info;
    if (!GetFileInformationByHandle(handle, &info) ||
        (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0 ||
        (info.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) != 0 ||
        info.dwVolumeSerialNumber != created_info.dwVolumeSerialNumber ||
        info.nFileIndexHigh != created_info.nFileIndexHigh ||
        info.nFileIndexLow != created_info.nFileIndexLow) {
        yaml_remove_open_lock_directory(handle);
        free(wide_path);