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typesv3.go
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typesv3.go
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package snapshot
import (
"bytes"
"encoding/binary"
"fmt"
"io"
"github.com/eoscanada/eos-go"
)
type TableIDObject struct {
Code string
Scope string
TableName string
Payer string
Count uint32 // represents the number of rows & indices for a given table
}
type ContractRow struct {
PrimKey string
Payer string
}
type KeyValueObject struct {
ContractRow
Value eos.HexBytes
}
type Index64Object struct {
ContractRow
SecondaryKey eos.Name
}
type Index128Object struct {
ContractRow
SecondaryKey eos.Uint128
}
type Index256Object struct {
ContractRow
SecondaryKey eos.Checksum256
}
type IndexDoubleObject struct {
ContractRow
SecondaryKey eos.Float64
}
type IndexLongDoubleObject struct {
ContractRow
SecondaryKey eos.Float128
}
func readContractTables(section *Section, f sectionCallbackFunc) error {
fl := section.Buffer
bufSize := section.BufferSize
bytesBuf := make([]byte, bufSize)
slurped, err := fl.Read(bytesBuf)
if err != nil {
return err
}
if slurped != int(bufSize) {
slurped2, err := fl.Read(bytesBuf[slurped:])
if err != nil {
return err
}
if slurped+slurped2 != int(bufSize) {
return fmt.Errorf("read less than section size: %d of %d", slurped+slurped2, section.BufferSize)
}
}
buf := bytes.NewBuffer(bytesBuf)
for {
head := make([]byte, 8+8+8+8+4)
readz, err := buf.Read(head)
if err == io.EOF {
break
}
if err != nil {
return fmt.Errorf("reading table id: %w", err)
}
if readz != 8+8+8+8+4 {
return fmt.Errorf("incomplete read for table_id_object: %d out of %d", readz, 8+8+8+8+4)
}
t := &TableIDObject{
Code: eos.NameToString(binary.LittleEndian.Uint64(head[0:8])),
Scope: eos.NameToString(binary.LittleEndian.Uint64(head[8:16])),
TableName: eos.NameToString(binary.LittleEndian.Uint64(head[16:24])),
Payer: eos.NameToString(binary.LittleEndian.Uint64(head[24:32])),
Count: binary.LittleEndian.Uint32(head[32:36]),
}
if err := f(t); err != nil {
return err
}
for idxType := 0; idxType < 6; idxType++ {
size, err := readUvarint(buf)
if err != nil {
return fmt.Errorf("reading index type size: %w", err)
}
for i := 0; i < int(size); i++ {
head := make([]byte, 8+8)
readz, err := buf.Read(head)
if err != nil {
return fmt.Errorf("reading key value head: %w", err)
}
if readz != 16 {
return fmt.Errorf("incomplete read for row header: %d out of 16", readz)
}
contractRow := ContractRow{
PrimKey: eos.NameToString(binary.LittleEndian.Uint64(head[0:8])),
Payer: eos.NameToString(binary.LittleEndian.Uint64(head[8:16])),
}
var row interface{}
switch idxType {
case 0: /* key_value_object */
obj := &KeyValueObject{ContractRow: contractRow}
valueSize, err := readUvarint(buf)
if err != nil {
return err
}
val := make([]byte, valueSize)
readz, err = buf.Read(val)
if err != nil {
return err
}
if readz != int(valueSize) {
return fmt.Errorf("incomplete read key_value_object: %d out of %d", readz, valueSize)
}
obj.Value = val
row = obj
case 1: /* index64_object */
obj := &Index64Object{ContractRow: contractRow}
val := make([]byte, 8)
readz, err := buf.Read(val)
if err != nil {
return err
}
if readz != 8 {
return fmt.Errorf("incomplete read index64_object: %d out of 8", readz)
}
if err := eos.UnmarshalBinary(val, &obj.SecondaryKey); err != nil {
return err
}
row = obj
case 2: /* index128_object */
obj := &Index128Object{ContractRow: contractRow}
val := make([]byte, 16)
if _, err = buf.Read(val); err != nil {
return err
}
if err := eos.UnmarshalBinary(val, &obj.SecondaryKey); err != nil {
return err
}
row = obj
case 3: /* index256_object */
obj := &Index256Object{ContractRow: contractRow}
val := make([]byte, 32)
if _, err = buf.Read(val); err != nil {
return err
}
if err := eos.UnmarshalBinary(val, &obj.SecondaryKey); err != nil {
return err
}
row = obj
case 4: /* index_double_object */
obj := &IndexDoubleObject{ContractRow: contractRow}
val := make([]byte, 8)
if _, err = buf.Read(val); err != nil {
return err
}
if err := eos.UnmarshalBinary(val, &obj.SecondaryKey); err != nil {
return err
}
row = obj
case 5: /* index_long_double_object */
obj := &IndexLongDoubleObject{ContractRow: contractRow}
val := make([]byte, 16)
if _, err = buf.Read(val); err != nil {
return err
}
if err := eos.UnmarshalBinary(val, &obj.SecondaryKey); err != nil {
return err
}
row = obj
}
if err := f(row); err != nil {
return err
}
}
}
}
return nil
}
type BlockState struct {
/// from block_header_state_common
BlockNum uint32 `json:"block_num"`
DposProposedIrreversibleBlocknum uint32 `json:"dpos_proposed_irreversible_blocknum"`
DposIrreversibleBlocknum uint32 `json:"dpos_irreversible_blocknum"`
ActiveSchedule *eos.ProducerAuthoritySchedule `json:"active_schedule"`
BlockrootMerkle *eos.MerkleRoot `json:"blockroot_merkle"`
ProducerToLastProduced []eos.PairAccountNameBlockNum `json:"producer_to_last_produced"`
ProducerToLastImpliedIrb []eos.PairAccountNameBlockNum `json:"producer_to_last_implied_irb"`
BlockSigningKey *eos.BlockSigningAuthority `json:"block_signing_key"`
ConfirmCount []uint8 `json:"confirm_count"`
// from block_header_state
BlockID eos.Checksum256 `json:"id"`
Header *eos.SignedBlockHeader `json:"header"`
PendingSchedule *ScheduleInfo `json:"pending_schedule"`
ActivatedProtocolFeatures *eos.ProtocolFeatureActivationSet `json:"activated_protocol_features"`
}
type ScheduleInfo struct {
ScheduleLIBNum uint32 `json:"schedule_lib_num"`
ScheduleHash eos.Checksum256 `json:"schedule_hash"`
Schedule *eos.ProducerAuthoritySchedule `json:"schedule"`
}
func readBlockState(section *Section, f sectionCallbackFunc) (err error) {
cnt := make([]byte, section.BufferSize)
_, err = section.Buffer.Read(cnt)
if err != nil {
return
}
var state BlockState
err = eos.UnmarshalBinary(cnt, &state)
if err != nil {
return
}
if err := f(state); err != nil {
return err
}
return nil
}
////
type AccountObject struct {
Name eos.AccountName
CreationDate eos.BlockTimestamp
RawABI []byte
}
func readAccountObjects(section *Section, f sectionCallbackFunc) error {
for i := uint64(0); i < section.RowCount; i++ {
a := AccountObject{}
cnt := make([]byte, 12)
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if err := eos.UnmarshalBinary(cnt[:8], &a.Name); err != nil {
return err
}
if err := eos.UnmarshalBinary(cnt[8:12], &a.CreationDate); err != nil {
return err
}
val, err := readByteArray(section.Buffer)
if err != nil {
return err
}
a.RawABI = val
if err := f(a); err != nil {
return err
}
}
return nil
}
////
type AccountMetadataObject struct {
Name eos.AccountName //< name should not be changed within a chainbase modifier lambda
RecvSequence eos.Uint64
AuthSequence eos.Uint64
CodeSequence eos.Uint64
ABISequence eos.Uint64
CodeHash eos.Checksum256
LastCodeUpdate eos.TimePoint
Flags uint32 // First flag means "privileged".
VMType byte
VMVersion byte
}
func readAccountMetadataObjects(section *Section, f sectionCallbackFunc) error {
for i := uint64(0); i < section.RowCount; i++ {
a := AccountMetadataObject{}
cnt := make([]byte, 86) // account_metadata_object is fixed size 86 bytes
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if err := eos.UnmarshalBinary(cnt, &a); err != nil {
return err
}
if err := f(a); err != nil {
return err
}
}
return nil
}
////
type ChainSnapshotHeader struct {
Version uint32
}
func readChainSnapshotHeader(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
var header ChainSnapshotHeader
err = eos.UnmarshalBinary(cnt, &header)
if err != nil {
return err
}
if err := f(header); err != nil {
return err
}
return nil
}
type GlobalPropertyObject struct {
ProposedScheduleBlockNum uint32 `eos:"optional"`
ProposedSchedule *eos.ProducerAuthoritySchedule
Configuration ChainConfig
ChainID eos.Checksum256
}
func readGlobalPropertyObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
var obj GlobalPropertyObject
err = eos.UnmarshalBinary(cnt, &obj)
if err != nil {
return err
}
if err := f(obj); err != nil {
return err
}
return nil
}
//
type ProtocolStateObject struct {
ActivatedProtocolFeatures []*ActivatedProtocolFeature
PreactivatedProtocolFeatures []eos.Checksum256
WhitelistedIntrinsics []string
NumSupportedKeyTypes uint32
}
type ActivatedProtocolFeature struct {
FeatureDigest eos.Checksum256
ActivationBlockNum uint32
}
func readProtocolStateObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
var obj ProtocolStateObject
err = eos.UnmarshalBinary(cnt, &obj)
if err != nil {
return err
}
if err := f(obj); err != nil {
return err
}
return nil
}
//
type DynamicGlobalPropertyObject struct {
GlobalActionSequence eos.Uint64
}
func readDynamicGlobalPropertyObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
var obj DynamicGlobalPropertyObject
err = eos.UnmarshalBinary(cnt, &obj)
if err != nil {
return err
}
if err := f(obj); err != nil {
return err
}
return nil
}
//
type AccountRAMCorrectionObject struct {
Name eos.AccountName
RAMCorrection eos.Uint64
}
func readAccountRAMCorrectionObject(section *Section, f sectionCallbackFunc) error {
for i := uint64(0); i < section.RowCount; i++ {
a := AccountRAMCorrectionObject{}
cnt := make([]byte, 16) // fixed size of account_ram_correction_object
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if err := eos.UnmarshalBinary(cnt, &a); err != nil {
return err
}
if err := f(a); err != nil {
return err
}
}
return nil
}
//
type BlockSummary struct {
BlockID eos.Checksum256
}
func readBlockSummary(section *Section, f sectionCallbackFunc) error {
for i := uint64(0); i < section.RowCount; i++ {
a := BlockSummary{}
cnt := make([]byte, 32) // fixed size of block_summary
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if err := eos.UnmarshalBinary(cnt, &a); err != nil {
return err
}
if err := f(a); err != nil {
return err
}
}
return nil
}
///
type PermissionObject struct { /* special snapshot version of the object */
Parent eos.PermissionName ///< parent permission
Owner eos.AccountName ///< the account this permission belongs to
Name eos.PermissionName ///< human-readable name for the permission
LastUpdated eos.TimePoint ///< the last time this authority was updated
LastUsed eos.TimePoint ///< when this permission was last used
Auth eos.Authority ///< authority required to execute this permission
}
func readPermissionObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
for pos := 0; pos < int(section.BufferSize); {
d := eos.NewDecoder(cnt[pos:])
var po PermissionObject
err = d.Decode(&po)
if err != nil {
return err
}
if err := f(po); err != nil {
return err
}
pos += d.LastPos()
}
// _ = ioutil.WriteFile("/tmp/test.dat", cnt, 0664)
return nil
}
///
type PermissionLinkObject struct {
/// The account which is defining its permission requirements
Account eos.AccountName
/// The contract which account requires @ref required_permission to invoke
Code eos.AccountName
/// The message type which account requires @ref required_permission to invoke
/// May be empty; if so, it sets a default @ref required_permission for all messages to @ref code
MessageType eos.ActionName
/// The permission level which @ref account requires for the specified message types
/// all of the above fields should not be changed within a chainbase modifier lambda
RequiredPermission eos.PermissionName
}
func readPermissionLinkObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
for pos := 0; pos < int(section.BufferSize); {
d := eos.NewDecoder(cnt[pos:])
var po PermissionLinkObject
err = d.Decode(&po)
if err != nil {
return err
}
if err := f(po); err != nil {
return err
}
pos += d.LastPos()
}
return nil
}
////
type ResourceLimitsObject struct {
Owner eos.AccountName //< should not be changed within a chainbase modifier lambda
NetWeight eos.Int64
CPUWeight eos.Int64
RAMBytes eos.Int64
}
func readResourceLimitsObject(section *Section, f sectionCallbackFunc) error {
for i := uint64(0); i < section.RowCount; i++ {
a := ResourceLimitsObject{}
cnt := make([]byte, 8+8+8+8) // fixed size of resource_limits_object
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if err := eos.UnmarshalBinary(cnt, &a); err != nil {
return err
}
if err := f(a); err != nil {
return err
}
}
return nil
}
////
type ResourceUsageObject struct {
Owner eos.AccountName //< owner should not be changed within a chainbase modifier lambda
NetUsage UsageAccumulator
CPUUsage UsageAccumulator
RAMUsage eos.Uint64
}
func readResourceUsageObject(section *Section, f sectionCallbackFunc) error {
for i := uint64(0); i < section.RowCount; i++ {
a := ResourceUsageObject{}
cnt := make([]byte, 8+20+20+8) // fixed size of resource_limits_object
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if err := eos.UnmarshalBinary(cnt, &a); err != nil {
return err
}
if err := f(a); err != nil {
return err
}
}
return nil
}
////
type ResourceLimitsStateObject struct {
/**
* Track the average netusage for blocks
*/
AverageBlockNetUsage UsageAccumulator
/**
* Track the average cpu usage for blocks
*/
AverageBlockCPUUsage UsageAccumulator
PendingNetUsage eos.Uint64
PendingCPUUsage eos.Uint64
TotalNetWeight eos.Uint64
TotalCPUWeight eos.Uint64
TotalRAMBytes eos.Uint64
/**
* The virtual number of bytes that would be consumed over blocksize_average_window_ms
* if all blocks were at their maximum virtual size. This is virtual because the
* real maximum block is less, this virtual number is only used for rate limiting users.
*
* It's lowest possible value is max_block_size * blocksize_average_window_ms / block_interval
* It's highest possible value is config::maximum_elastic_resource_multiplier (1000) times its lowest possible value
*
* This means that the most an account can consume during idle periods is 1000x the bandwidth
* it is gauranteed under congestion.
*
* Increases when average_block_size < target_block_size, decreases when
* average_block_size > target_block_size, with a cap at 1000x max_block_size
* and a floor at max_block_size;
**/
VirtualNetLimit eos.Uint64
/**
* Increases when average_bloc
*/
VirtualCPULimit eos.Uint64
}
type UsageAccumulator struct {
LastOrdinal uint32 ///< The ordinal of the last period which has contributed to the average
ValueEx eos.Uint64 ///< The current average pre-multiplied by Precision
Consumed eos.Uint64 ///< The last periods average + the current periods contribution so far
}
func readResourceLimitsStateObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
var obj ResourceLimitsStateObject
if err = eos.UnmarshalBinary(cnt, &obj); err != nil {
return fmt.Errorf("unmarshal binary: %w", err)
}
return f(obj)
}
////
type ResourceLimitsConfigObject struct {
CPULimitParameters ElasticLimitParameters
NetLimitParameters ElasticLimitParameters
AccountCPUUsageAverageWindow uint32
AccountNetUsageAverageWindow uint32
}
type ElasticLimitParameters struct {
Target eos.Uint64 // the desired usage
Max eos.Uint64 // the maximum usage
Periods uint32 // the number of aggregation periods that contribute to the average usage
MaxMultiplier uint32 // the multiplier by which virtual space can oversell usage when uncongested
ContractRate eos.Uint64 // the rate at which a congested resource contracts its limit
ExpandRate eos.Uint64 // the rate at which an uncongested resource expands its limits
}
func readResourceLimitsConfigObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
var obj ResourceLimitsConfigObject
if err = eos.UnmarshalBinary(cnt, &obj); err != nil {
return fmt.Errorf("unmarshal binary: %w", err)
}
return f(obj)
}
////
type CodeObject struct {
CodeHash eos.Checksum256 //< code_hash should not be changed within a chainbase modifier lambda
Code eos.HexBytes
CodeRefCount eos.Uint64
FirstBlockUsed uint32
VMType uint8 //< vm_type should not be changed within a chainbase modifier lambda
VMVersion uint8 //< vm_version should not be changed within a chainbase modifier lambda
}
func readCodeObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
readz, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if readz != len(cnt) {
return fmt.Errorf("failed reading the whole code object section: %d of %d", readz, len(cnt))
}
for pos := 0; pos < int(section.BufferSize); {
d := eos.NewDecoder(cnt[pos:])
var co CodeObject
err = d.Decode(&co)
if err != nil {
return err
}
if err := f(co); err != nil {
return err
}
pos += d.LastPos()
}
return nil
}
////
type GeneratedTransactionObject struct {
TrxID eos.Checksum256 //< trx_id should not be changed within a chainbase modifier lambda
Sender eos.AccountName //< sender should not be changed within a chainbase modifier lambda
SenderID eos.Uint128 /// ID given this transaction by the sender (should not be changed within a chainbase modifier lambda)
Payer eos.AccountName
DelayUntil eos.TimePoint /// this generated transaction will not be applied until the specified time
Expiration eos.TimePoint /// this generated transaction will not be applied after time
Published eos.TimePoint
PackedTrx eos.HexBytes
}
func readGeneratedTransactionObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
readz, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if readz != len(cnt) {
return fmt.Errorf("failed reading the whole code object section: %d of %d", readz, len(cnt))
}
for pos := 0; pos < int(section.BufferSize); {
d := eos.NewDecoder(cnt[pos:])
var gto GeneratedTransactionObject
err = d.Decode(>o)
if err != nil {
return err
}
if err := f(gto); err != nil {
return err
}
pos += d.LastPos()
}
return nil
}
////
type TransactionObject struct {
Expiration eos.TimePointSec
TrxID eos.Checksum256 //< trx_id shou
}
func readTransactionObject(section *Section, f sectionCallbackFunc) error {
cnt := make([]byte, section.BufferSize)
readz, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if readz != len(cnt) {
return fmt.Errorf("failed reading the whole code object section: %d of %d", readz, len(cnt))
}
for pos := 0; pos < int(section.BufferSize); {
d := eos.NewDecoder(cnt[pos:])
var to TransactionObject
err = d.Decode(&to)
if err != nil {
return err
}
if err := f(to); err != nil {
return err
}
pos += d.LastPos()
}
return nil
}
/// Ultra Specific
type FreeObjectUsage struct {
UserSize eos.Uint64
UserCount eos.Uint64
UltraSize eos.Uint64
UltraCount eos.Uint64
}
type AccountFreeActionsObject struct {
Name eos.AccountName
PermissionObject FreeObjectUsage
SharedKey FreeObjectUsage
PermissionLevel FreeObjectUsage
Wait FreeObjectUsage
PermissionLinkObject FreeObjectUsage
}
func readAccountFreeActionsObject(section *Section, f sectionCallbackFunc) error {
for i := uint64(0); i < section.RowCount; i++ {
a := AccountFreeActionsObject{}
cnt := make([]byte, 8+(8*4)*5) // fixed size of resource_limits_object
_, err := section.Buffer.Read(cnt)
if err != nil {
return err
}
if err := eos.UnmarshalBinary(cnt, &a); err != nil {
return err
}
if err := f(a); err != nil {
return err
}
}
return nil
}