event_config.gno

  1package core
  2
  3import "gno.land/r/onbloc/ibc/union/access"
  4
  5const (
  6	defaultMaxEventAttrValueLen = 4096
  7	defaultMaxEventAttrPairs    = 50
  8)
  9
 10var eventConfig = DefaultEventConfig()
 11
 12// EventConfig controls host event attribute splitting and sizing.
 13type EventConfig struct {
 14	// SplitEventAttrs controls whether large event attributes are emitted as
 15	// indexed columns and whether split-dependent size checks are enforced.
 16	SplitEventAttrs bool
 17
 18	// MaxEventAttrValueLen is the maximum value length of each split event
 19	// attribute column.
 20	MaxEventAttrValueLen uint
 21
 22	// MaxEventAttrPairs is the shared key/value attr-pair budget for one host
 23	// event: both the max packet_data columns allowed when packet_data size
 24	// checks are enforced solo, and the combined pair budget IsValidEventSize
 25	// checks across packet_data plus whatever else lands in the same event
 26	// (ack, relayerMsg, marketMakerMsg). Mirrors chain.Emit's own
 27	// MaxEventPairs ceiling (64), kept comfortably under it to leave room for
 28	// the event's other fixed attrs.
 29	MaxEventAttrPairs uint
 30}
 31
 32// NewEventConfig constructs an EventConfig value. SetEventConfig validates the
 33// value before storing it.
 34func NewEventConfig(splitEventAttrs bool, maxEventAttrValueLen uint, maxEventAttrPairs uint) EventConfig {
 35	return EventConfig{
 36		SplitEventAttrs:      splitEventAttrs,
 37		MaxEventAttrValueLen: maxEventAttrValueLen,
 38		MaxEventAttrPairs:    maxEventAttrPairs,
 39	}
 40}
 41
 42// DefaultEventConfig returns the default host event attribute policy.
 43func DefaultEventConfig() EventConfig {
 44	return EventConfig{
 45		SplitEventAttrs:      true,
 46		MaxEventAttrValueLen: defaultMaxEventAttrValueLen,
 47		MaxEventAttrPairs:    defaultMaxEventAttrPairs,
 48	}
 49}
 50
 51// GetEventConfig returns the current host event attribute policy.
 52func GetEventConfig() EventConfig {
 53	return eventConfig
 54}
 55
 56// SetEventConfig updates the host event attribute policy.
 57// The caller must be authorized for SelectorSetEventConfig.
 58func SetEventConfig(cur realm, config EventConfig) {
 59	access.AssertCanCall(0, cur, SelectorSetEventConfig)
 60
 61	setEventConfig(config)
 62}
 63
 64// SetSplitEventAttrs updates whether large event attributes are split.
 65// The caller must be authorized for SelectorSetEventConfig.
 66func SetSplitEventAttrs(cur realm, splitEventAttrs bool) {
 67	access.AssertCanCall(0, cur, SelectorSetEventConfig)
 68
 69	config := GetEventConfig()
 70	config.SplitEventAttrs = splitEventAttrs
 71	setEventConfig(config)
 72}
 73
 74// SetMaxEventAttrValueLen updates the maximum value length for each split
 75// event attribute column.
 76// The caller must be authorized for SelectorSetEventConfig.
 77func SetMaxEventAttrValueLen(cur realm, maxEventAttrValueLen uint) {
 78	access.AssertCanCall(0, cur, SelectorSetEventConfig)
 79
 80	config := GetEventConfig()
 81	config.MaxEventAttrValueLen = maxEventAttrValueLen
 82	setEventConfig(config)
 83}
 84
 85// SetMaxEventAttrPairs updates the shared event attr-pair budget.
 86// The caller must be authorized for SelectorSetEventConfig.
 87func SetMaxEventAttrPairs(cur realm, maxEventAttrPairs uint) {
 88	access.AssertCanCall(0, cur, SelectorSetEventConfig)
 89
 90	config := GetEventConfig()
 91	config.MaxEventAttrPairs = maxEventAttrPairs
 92	setEventConfig(config)
 93}
 94
 95func setEventConfig(config EventConfig) {
 96	assertValidEventConfig(config)
 97	eventConfig = config
 98}
 99
100func assertValidEventConfig(config EventConfig) {
101	if config.MaxEventAttrValueLen == 0 {
102		panic("max event attr value len must be positive")
103	}
104	if config.MaxEventAttrPairs == 0 {
105		panic("max event attr pairs must be positive")
106	}
107}