package rbd // #cgo LDFLAGS: -lrbd // #include // #include import "C" import ( "fmt" "unsafe" ) const ( // RBD image options. // ImageOptionFormat is the representation of RBD_IMAGE_OPTION_FORMAT from // librbd ImageOptionFormat = C.RBD_IMAGE_OPTION_FORMAT // ImageOptionFeatures is the representation of RBD_IMAGE_OPTION_FEATURES // from librbd ImageOptionFeatures = C.RBD_IMAGE_OPTION_FEATURES // ImageOptionOrder is the representation of RBD_IMAGE_OPTION_ORDER from // librbd ImageOptionOrder = C.RBD_IMAGE_OPTION_ORDER // ImageOptionStripeUnit is the representation of // RBD_IMAGE_OPTION_STRIPE_UNIT from librbd ImageOptionStripeUnit = C.RBD_IMAGE_OPTION_STRIPE_UNIT // ImageOptionStripeCount is the representation of // RBD_IMAGE_OPTION_STRIPE_COUNT from librbd ImageOptionStripeCount = C.RBD_IMAGE_OPTION_STRIPE_COUNT // ImageOptionJournalOrder is the representation of // RBD_IMAGE_OPTION_JOURNAL_ORDER from librbd ImageOptionJournalOrder = C.RBD_IMAGE_OPTION_JOURNAL_ORDER // ImageOptionJournalSplayWidth is the representation of // RBD_IMAGE_OPTION_JOURNAL_SPLAY_WIDTH from librbd ImageOptionJournalSplayWidth = C.RBD_IMAGE_OPTION_JOURNAL_SPLAY_WIDTH // ImageOptionJournalPool is the representation of // RBD_IMAGE_OPTION_JOURNAL_POOL from librbd ImageOptionJournalPool = C.RBD_IMAGE_OPTION_JOURNAL_POOL // ImageOptionFeaturesSet is the representation of // RBD_IMAGE_OPTION_FEATURES_SET from librbd ImageOptionFeaturesSet = C.RBD_IMAGE_OPTION_FEATURES_SET // ImageOptionFeaturesClear is the representation of // RBD_IMAGE_OPTION_FEATURES_CLEAR from librbd ImageOptionFeaturesClear = C.RBD_IMAGE_OPTION_FEATURES_CLEAR // ImageOptionDataPool is the representation of RBD_IMAGE_OPTION_DATA_POOL // from librbd ImageOptionDataPool = C.RBD_IMAGE_OPTION_DATA_POOL // ImageOptionFlatten is the representation of RBD_IMAGE_OPTION_FLATTEN // from librbd ImageOptionFlatten = C.RBD_IMAGE_OPTION_FLATTEN // ImageOptionCloneFormat is the representation of // RBD_IMAGE_OPTION_CLONE_FORMAT from librbd ImageOptionCloneFormat = C.RBD_IMAGE_OPTION_CLONE_FORMAT // RbdImageOptionFormat deprecated alias for ImageOptionFormat RbdImageOptionFormat = ImageOptionFormat // RbdImageOptionFeatures deprecated alias for ImageOptionFeatures RbdImageOptionFeatures = ImageOptionFeatures // RbdImageOptionOrder deprecated alias for ImageOptionOrder RbdImageOptionOrder = ImageOptionOrder // RbdImageOptionStripeUnit deprecated alias for ImageOptionStripeUnit RbdImageOptionStripeUnit = ImageOptionStripeUnit // RbdImageOptionStripeCount deprecated alias for ImageOptionStripeCount RbdImageOptionStripeCount = ImageOptionStripeCount // RbdImageOptionJournalOrder deprecated alias for ImageOptionJournalOrder RbdImageOptionJournalOrder = ImageOptionJournalOrder // RbdImageOptionJournalSplayWidth deprecated alias for RbdImageOptionJournalSplayWidth = ImageOptionJournalSplayWidth // RbdImageOptionJournalPool deprecated alias for ImageOptionJournalPool RbdImageOptionJournalPool = ImageOptionJournalPool // RbdImageOptionFeaturesSet deprecated alias for ImageOptionFeaturesSet RbdImageOptionFeaturesSet = ImageOptionFeaturesSet // RbdImageOptionFeaturesClear deprecated alias for ImageOptionFeaturesClear RbdImageOptionFeaturesClear = ImageOptionFeaturesClear // RbdImageOptionDataPool deprecated alias for ImageOptionDataPool RbdImageOptionDataPool = ImageOptionDataPool ) // ImageOptions represents a group of configurable image options. type ImageOptions struct { options C.rbd_image_options_t } // ImageOption values are unique keys for configurable options. type ImageOption C.int // revive:disable:exported Deprecated aliases // RbdImageOptions deprecated alias for ImageOptions type RbdImageOptions = ImageOptions // RbdImageOption is a deprecated alias for ImageOption type RbdImageOption = ImageOption //revive:enable:exported // NewRbdImageOptions creates a new RbdImageOptions struct. Call // RbdImageOptions.Destroy() to free the resources. // // Implements: // // void rbd_image_options_create(rbd_image_options_t* opts) func NewRbdImageOptions() *ImageOptions { rio := &ImageOptions{} C.rbd_image_options_create(&rio.options) return rio } // Destroy a RbdImageOptions struct and free the associated resources. // // Implements: // // void rbd_image_options_destroy(rbd_image_options_t opts); func (rio *ImageOptions) Destroy() { C.rbd_image_options_destroy(rio.options) } // SetString sets the value of the RbdImageOption to the given string. // // Implements: // // int rbd_image_options_set_string(rbd_image_options_t opts, int optname, // const char* optval); func (rio *ImageOptions) SetString(option ImageOption, value string) error { cValue := C.CString(value) defer C.free(unsafe.Pointer(cValue)) ret := C.rbd_image_options_set_string(rio.options, C.int(option), cValue) if ret != 0 { return fmt.Errorf("%v, could not set option %v to \"%v\"", getError(ret), option, value) } return nil } // GetString returns the string value of the RbdImageOption. // // Implements: // // int rbd_image_options_get_string(rbd_image_options_t opts, int optname, // char* optval, size_t maxlen); func (rio *ImageOptions) GetString(option ImageOption) (string, error) { value := make([]byte, 4096) ret := C.rbd_image_options_get_string(rio.options, C.int(option), (*C.char)(unsafe.Pointer(&value[0])), C.size_t(len(value))) if ret != 0 { return "", fmt.Errorf("%v, could not get option %v", getError(ret), option) } return C.GoString((*C.char)(unsafe.Pointer(&value[0]))), nil } // SetUint64 sets the value of the RbdImageOption to the given uint64. // // Implements: // // int rbd_image_options_set_uint64(rbd_image_options_t opts, int optname, // const uint64_t optval); func (rio *ImageOptions) SetUint64(option ImageOption, value uint64) error { cValue := C.uint64_t(value) ret := C.rbd_image_options_set_uint64(rio.options, C.int(option), cValue) if ret != 0 { return fmt.Errorf("%v, could not set option %v to \"%v\"", getError(ret), option, value) } return nil } // GetUint64 returns the uint64 value of the RbdImageOption. // // Implements: // // int rbd_image_options_get_uint64(rbd_image_options_t opts, int optname, // uint64_t* optval); func (rio *ImageOptions) GetUint64(option ImageOption) (uint64, error) { var cValue C.uint64_t ret := C.rbd_image_options_get_uint64(rio.options, C.int(option), &cValue) if ret != 0 { return 0, fmt.Errorf("%v, could not get option %v", getError(ret), option) } return uint64(cValue), nil } // IsSet returns a true if the RbdImageOption is set, false otherwise. // // Implements: // // int rbd_image_options_is_set(rbd_image_options_t opts, int optname, // bool* is_set); func (rio *ImageOptions) IsSet(option ImageOption) (bool, error) { var cSet C.bool ret := C.rbd_image_options_is_set(rio.options, C.int(option), &cSet) if ret != 0 { return false, fmt.Errorf("%v, could not check option %v", getError(ret), option) } return bool(cSet), nil } // Unset a given RbdImageOption. // // Implements: // // int rbd_image_options_unset(rbd_image_options_t opts, int optname) func (rio *ImageOptions) Unset(option ImageOption) error { ret := C.rbd_image_options_unset(rio.options, C.int(option)) if ret != 0 { return fmt.Errorf("%v, could not unset option %v", getError(ret), option) } return nil } // Clear all options in the RbdImageOptions. // // Implements: // // void rbd_image_options_clear(rbd_image_options_t opts) func (rio *ImageOptions) Clear() { C.rbd_image_options_clear(rio.options) } // IsEmpty returns true if there are no options set in the RbdImageOptions, // false otherwise. // // Implements: // // int rbd_image_options_is_empty(rbd_image_options_t opts) func (rio *ImageOptions) IsEmpty() bool { ret := C.rbd_image_options_is_empty(rio.options) return ret != 0 }