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resource_limits.go
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resource_limits.go
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package chain
import (
"github.com/eosspark/eos-go/chain/types"
. "github.com/eosspark/eos-go/chain/types/generated_containers"
"github.com/eosspark/eos-go/common"
"github.com/eosspark/eos-go/common/eos_math"
"github.com/eosspark/eos-go/database"
"github.com/eosspark/eos-go/entity"
. "github.com/eosspark/eos-go/exception"
. "github.com/eosspark/eos-go/exception/try"
"github.com/eosspark/eos-go/log"
)
type ResourceLimitsManager struct {
db database.DataBase `json:"db"`
}
func newResourceLimitsManager(control *Controller) *ResourceLimitsManager {
rcInstance := ResourceLimitsManager{}
rcInstance.db = control.DB
return &rcInstance
}
func (r *ResourceLimitsManager) InitializeDatabase() {
config := entity.NewResourceLimitsConfigObject()
err := r.db.Insert(&config)
if err != nil {
log.Error("InitializeDatabase is error: %s", err)
}
state := entity.DefaultResourceLimitsStateObject
state.VirtualCpuLimit = config.CpuLimitParameters.Max
state.VirtualNetLimit = config.NetLimitParameters.Max
err = r.db.Insert(&state)
if err != nil {
log.Error("InitializeDatabase is error: %s", err)
}
}
func (r *ResourceLimitsManager) InitializeAccount(account common.AccountName) {
bl := entity.NewResourceLimitsObject()
bl.Owner = account
err := r.db.Insert(&bl)
if err != nil {
log.Error("InitializeAccount is error: %s", err)
}
bu := entity.ResourceUsageObject{}
bu.Owner = account
err = r.db.Insert(&bu)
if err != nil {
log.Error("InitializeAccount is error: %s", err)
}
}
func (r *ResourceLimitsManager) SetBlockParameters(cpuLimitParameters types.ElasticLimitParameters, netLimitParameters types.ElasticLimitParameters) {
cpuLimitParameters.Validate()
netLimitParameters.Validate()
config := entity.DefaultResourceLimitsConfigObject
err := r.db.Find("id", config, &config)
if err != nil {
log.Error("SetBlockParameters is error: %s", err)
}
err = r.db.Modify(&config, func(c *entity.ResourceLimitsConfigObject) {
c.CpuLimitParameters = cpuLimitParameters
c.NetLimitParameters = netLimitParameters
})
if err != nil {
log.Error("SetBlockParameters is error: %s", err)
}
}
func (r *ResourceLimitsManager) UpdateAccountUsage(account *AccountNameSet, timeSlot uint32) { //待定
config := entity.DefaultResourceLimitsConfigObject
err := r.db.Find("id", config, &config)
if err != nil {
log.Error("UpdateAccountUsage is error: %s", err)
}
usage := entity.ResourceUsageObject{}
itr := account.Iterator()
for itr.Next() {
usage.Owner = itr.Value()
err := r.db.Find("byOwner", usage, &usage)
if err != nil {
log.Error("UpdateAccountUsage is error: %s", err)
}
err = r.db.Modify(&usage, func(bu *entity.ResourceUsageObject) {
bu.NetUsage.Add(0, timeSlot, config.AccountNetUsageAverageWindow)
bu.CpuUsage.Add(0, timeSlot, config.AccountCpuUsageAverageWindow)
})
if err != nil {
log.Error("UpdateAccountUsage is error: %s", err)
}
}
/*for _, a := range account.Data {
usage.Owner = *a.(*common.AccountName)
err := r.db.Find("byOwner", usage, &usage)
if err != nil {
log.Error("UpdateAccountUsage is error: %s", err)
}
err = r.db.Modify(&usage, func(bu *entity.ResourceUsageObject) {
bu.NetUsage.Add(0, timeSlot, config.AccountNetUsageAverageWindow)
bu.CpuUsage.Add(0, timeSlot, config.AccountCpuUsageAverageWindow)
})
if err != nil {
log.Error("UpdateAccountUsage is error: %s", err)
}
}*/
}
func (r *ResourceLimitsManager) AddTransactionUsage(account *AccountNameSet, cpuUsage uint64, netUsage uint64, timeSlot uint32) {
state := entity.DefaultResourceLimitsStateObject
err := r.db.Find("id", state, &state)
if err != nil {
log.Error("AddTransactionUsage is error: %s", err)
}
config := entity.DefaultResourceLimitsConfigObject
err = r.db.Find("id", config, &config)
if err != nil {
log.Error("AddTransactionUsage is error: %s", err)
}
itr := account.Iterator()
//for _, a := range account.Data {
for itr.Next() {
usage := entity.ResourceUsageObject{}
usage.Owner = itr.Value()
err := r.db.Find("byOwner", usage, &usage)
if err != nil {
log.Error("AddTransactionUsage is error: %s", err)
}
var unUsed, netWeight, cpuWeight int64
r.GetAccountLimits(itr.Value(), &unUsed, &netWeight, &cpuWeight)
err = r.db.Modify(&usage, func(bu *entity.ResourceUsageObject) {
bu.CpuUsage.Add(cpuUsage, timeSlot, config.AccountCpuUsageAverageWindow)
bu.NetUsage.Add(netUsage, timeSlot, config.AccountNetUsageAverageWindow)
})
if err != nil {
log.Error("AddTransactionUsage is error: %s", err)
}
if cpuWeight >= 0 && state.TotalCpuWeight > 0 {
windowSize := uint64(config.AccountCpuUsageAverageWindow)
virtualNetworkCapacityInWindow := eos_math.MulUint64(state.VirtualCpuLimit, windowSize)
cpuUsedInWindow := eos_math.MulUint64(usage.CpuUsage.ValueEx, windowSize)
cpuUsedInWindow, _ = cpuUsedInWindow.Div(eos_math.Uint128{Low: uint64(common.DefaultConfig.RateLimitingPrecision)})
userWeight := eos_math.Uint128{Low: uint64(cpuWeight)}
allUserWeight := eos_math.Uint128{Low: state.TotalCpuWeight}
maxUserUseInWindow := virtualNetworkCapacityInWindow.Mul(userWeight)
maxUserUseInWindow, _ = maxUserUseInWindow.Div(allUserWeight)
EosAssert(cpuUsedInWindow.Compare(maxUserUseInWindow) < 1, &TxCpuUsageExceeded{},
"authorizing account %s has insufficient cpu resources for this transaction,\n cpu_used_in_window: %s,\n max_user_use_in_window: %s",
(itr.Value()), cpuUsedInWindow, maxUserUseInWindow)
}
if netWeight >= 0 && state.TotalNetWeight > 0 {
windowSize := uint64(config.AccountNetUsageAverageWindow)
virtualNetworkCapacityInWindow := eos_math.MulUint64(state.VirtualNetLimit, windowSize)
netUsedInWindow := eos_math.MulUint64(usage.NetUsage.ValueEx, windowSize)
netUsedInWindow, _ = netUsedInWindow.Div(eos_math.Uint128{Low: uint64(common.DefaultConfig.RateLimitingPrecision)})
userWeight := eos_math.Uint128{Low: uint64(netWeight)}
allUserWeight := eos_math.Uint128{Low: state.TotalNetWeight}
maxUserUseInWindow := virtualNetworkCapacityInWindow.Mul(userWeight)
maxUserUseInWindow, _ = maxUserUseInWindow.Div(allUserWeight)
EosAssert(netUsedInWindow.Compare(maxUserUseInWindow) < 1, &TxNetUsageExceeded{},
"authorizing account %s has insufficient net resources for this transaction,\n net_used_in_window: %s,\n max_user_use_in_window: %s",
(itr.Value()), netUsedInWindow, maxUserUseInWindow)
}
}
err = r.db.Modify(&state, func(rls *entity.ResourceLimitsStateObject) {
rls.PendingCpuUsage += cpuUsage
rls.PendingNetUsage += netUsage
})
if err != nil {
log.Error("AddTransactionUsage is error: %s", err)
}
EosAssert(state.PendingCpuUsage <= config.CpuLimitParameters.Max, &BlockResourceExhausted{}, "Block has insufficient cpu resources")
EosAssert(state.PendingNetUsage <= config.NetLimitParameters.Max, &BlockResourceExhausted{}, "Block has insufficient net resources")
}
func (r *ResourceLimitsManager) AddPendingRamUsage(account common.AccountName, ramDelta int64) {
if ramDelta == 0 {
return
}
usage := entity.ResourceUsageObject{}
usage.Owner = account
err := r.db.Find("byOwner", usage, &usage)
if err != nil {
log.Error("AddPendingRamUsage is error: %s", err)
}
EosAssert(ramDelta <= 0 || eos_math.MaxUint64-usage.RamUsage >= uint64(ramDelta), &TransactionException{},
"Ram usage delta would overflow UINT64_MAX")
EosAssert(ramDelta >= 0 || usage.RamUsage >= uint64(-ramDelta), &TransactionException{},
"Ram usage delta would underflow UINT64_MAX")
err = r.db.Modify(&usage, func(u *entity.ResourceUsageObject) {
u.RamUsage += uint64(ramDelta)
})
if err != nil {
log.Error("AddPendingRamUsage is error: %s", err)
}
}
func (r *ResourceLimitsManager) VerifyAccountRamUsage(account common.AccountName) {
var ramBytes, netWeight, cpuWeight int64
r.GetAccountLimits(account, &ramBytes, &netWeight, &cpuWeight)
usage := entity.ResourceUsageObject{}
usage.Owner = account
err := r.db.Find("byOwner", usage, &usage)
if err != nil {
log.Error("VerifyAccountRamUsage is error: %s", err)
}
if ramBytes >= 0 {
EosAssert(usage.RamUsage <= uint64(ramBytes), &RamUsageExceeded{},
"account %s has insufficient ram; needs %d bytes has %d bytes", account, usage.RamUsage, ramBytes)
}
}
func (r *ResourceLimitsManager) GetAccountRamUsage(account common.AccountName) int64 {
usage := entity.ResourceUsageObject{}
usage.Owner = account
err := r.db.Find("byOwner", usage, &usage)
if err != nil {
log.Error("GetAccountRamUsage is error: %s", err)
}
return int64(usage.RamUsage)
}
func (r *ResourceLimitsManager) SetAccountLimits(account common.AccountName, ramBytes int64, netWeight int64, cpuWeight int64) bool {
findOrCreatePendingLimits := func() entity.ResourceLimitsObject {
pendingLimits := entity.ResourceLimitsObject{}
pendingLimits.Owner = account
pendingLimits.Pending = true
err := r.db.Find("byOwner", pendingLimits, &pendingLimits)
if err != nil {
limits := entity.ResourceLimitsObject{}
limits.Owner = account
limits.Pending = false
r.db.Find("byOwner", limits, &limits)
pendingLimits.Owner = limits.Owner
pendingLimits.RamBytes = limits.RamBytes
pendingLimits.NetWeight = limits.NetWeight
pendingLimits.CpuWeight = limits.CpuWeight
pendingLimits.Pending = true
r.db.Insert(&pendingLimits)
return pendingLimits
} else {
return pendingLimits
}
}
limits := findOrCreatePendingLimits()
decreasedLimit := false
if ramBytes >= 0 {
decreasedLimit = limits.RamBytes < 0 || ramBytes < limits.RamBytes
}
err := r.db.Modify(&limits, func(pendingLimits *entity.ResourceLimitsObject) {
pendingLimits.RamBytes = ramBytes
pendingLimits.NetWeight = netWeight
pendingLimits.CpuWeight = cpuWeight
})
if err != nil {
log.Error("SetAccountLimits is error: %s", err)
}
return decreasedLimit
}
func (r *ResourceLimitsManager) GetAccountLimits(account common.AccountName, ramBytes *int64, netWeight *int64, cpuWeight *int64) {
pendingBuo := entity.ResourceLimitsObject{}
pendingBuo.Owner = account
pendingBuo.Pending = true
err := r.db.Find("byOwner", pendingBuo, &pendingBuo)
if err == nil {
*ramBytes = pendingBuo.RamBytes
*netWeight = pendingBuo.NetWeight
*cpuWeight = pendingBuo.CpuWeight
} else {
buo := entity.ResourceLimitsObject{}
buo.Owner = account
buo.Pending = false
r.db.Find("byOwner", buo, &buo)
*ramBytes = buo.RamBytes
*netWeight = buo.NetWeight
*cpuWeight = buo.CpuWeight
}
}
func (r *ResourceLimitsManager) ProcessAccountLimitUpdates() {
byOwnerIndex, err := r.db.GetIndex("byOwner", entity.ResourceLimitsObject{})
if err != nil {
log.Error("ProcessAccountLimitUpdates is error: %s", err)
}
updateStateAndValue := func(total *uint64, value *int64, pendingValue int64, debugWhich string) {
if *value > 0 {
EosAssert(*total >= uint64(*value), &RateLimitingStateInconsistent{}, "underflow when reverting old value to %s", debugWhich)
*total -= uint64(*value)
}
if pendingValue > 0 {
EosAssert(eos_math.MaxUint64-*total >= uint64(pendingValue), &RateLimitingStateInconsistent{}, "overflow when applying new value to %s", debugWhich)
*total += uint64(pendingValue)
}
*value = pendingValue
}
state := entity.DefaultResourceLimitsStateObject
err = r.db.Find("id", state, &state)
if err != nil {
log.Error("ProcessAccountLimitUpdates is error: %s", err)
}
err = r.db.Modify(&state, func(rso *entity.ResourceLimitsStateObject) {
limit := entity.ResourceLimitsObject{}
for !byOwnerIndex.Empty() {
itr, err := byOwnerIndex.LowerBound(entity.ResourceLimitsObject{Pending: true})
if err != nil || byOwnerIndex.CompareEnd(itr) {
break
}
itr.Data(&limit)
if limit.Pending != true {
break
}
actualEntry := entity.ResourceLimitsObject{}
actualEntry.Pending = false
actualEntry.Owner = limit.Owner
err = r.db.Find("byOwner", actualEntry, &actualEntry)
if err != nil {
log.Error("ProcessAccountLimitUpdates is error: %s", err)
}
err = r.db.Modify(&actualEntry, func(rlo *entity.ResourceLimitsObject) {
updateStateAndValue(&rso.TotalRamBytes, &rlo.RamBytes, limit.RamBytes, "ram_bytes")
updateStateAndValue(&rso.TotalCpuWeight, &rlo.CpuWeight, limit.CpuWeight, "cpu_weight")
updateStateAndValue(&rso.TotalNetWeight, &rlo.NetWeight, limit.NetWeight, "net_weight")
})
if err != nil {
log.Error("ProcessAccountLimitUpdates is error: %s", err)
}
err = r.db.Remove(&limit)
if err != nil {
log.Error("ProcessAccountLimitUpdates is error: %s", err)
}
itr.Release()
}
})
if err != nil {
log.Error("ProcessAccountLimitUpdates is error: %s", err)
}
}
func (r *ResourceLimitsManager) ProcessBlockUsage(blockNum uint32) {
s := entity.DefaultResourceLimitsStateObject
err := r.db.Find("id", s, &s)
if err != nil {
log.Error("ProcessBlockUsage is error: %s", err)
}
config := entity.DefaultResourceLimitsConfigObject
err = r.db.Find("id", config, &config)
if err != nil {
log.Error("ProcessBlockUsage is error: %s", err)
}
err = r.db.Modify(&s, func(state *entity.ResourceLimitsStateObject) {
state.AverageBlockCpuUsage.Add(state.PendingCpuUsage, blockNum, config.CpuLimitParameters.Periods)
state.UpdateVirtualCpuLimit(config)
state.PendingCpuUsage = 0
state.AverageBlockNetUsage.Add(state.PendingNetUsage, blockNum, config.NetLimitParameters.Periods)
state.UpdateVirtualNetLimit(config)
state.PendingNetUsage = 0
})
if err != nil {
log.Error("ProcessBlockUsage is error: %s", err)
}
}
func (r *ResourceLimitsManager) GetVirtualBlockCpuLimit() uint64 {
state := entity.DefaultResourceLimitsStateObject
err := r.db.Find("id", state, &state)
if err != nil {
log.Error("GetVirtualBlockCpuLimit is error: %s", err)
}
return state.VirtualCpuLimit
}
func (r *ResourceLimitsManager) GetVirtualBlockNetLimit() uint64 {
state := entity.DefaultResourceLimitsStateObject
err := r.db.Find("id", state, &state)
if err != nil {
log.Error("GetVirtualBlockCpuLimit is error: %s", err)
}
return state.VirtualNetLimit
}
func (r *ResourceLimitsManager) GetBlockCpuLimit() uint64 {
state := entity.DefaultResourceLimitsStateObject
err := r.db.Find("id", state, &state)
if err != nil {
log.Error("GetBlockCpuLimit is error: %s", err)
}
config := entity.DefaultResourceLimitsConfigObject
err = r.db.Find("id", config, &config)
if err != nil {
log.Error("GetBlockCpuLimit is error: %s", err)
}
return config.CpuLimitParameters.Max - state.PendingCpuUsage
}
func (r *ResourceLimitsManager) GetBlockNetLimit() uint64 {
state := entity.DefaultResourceLimitsStateObject
err := r.db.Find("id", state, &state)
if err != nil {
log.Error("GetBlockNetLimit is error: %s", err)
}
config := entity.DefaultResourceLimitsConfigObject
err = r.db.Find("id", config, &config)
if err != nil {
log.Error("GetBlockNetLimit is error: %s", err)
}
return config.NetLimitParameters.Max - state.PendingNetUsage
}
func (r *ResourceLimitsManager) GetAccountCpuLimit(name common.AccountName, elastic bool) int64 {
arl := r.GetAccountCpuLimitEx(name, elastic)
return arl.Available
}
func (r *ResourceLimitsManager) GetAccountCpuLimitEx(name common.AccountName, elastic bool) types.AccountResourceLimit {
state := entity.DefaultResourceLimitsStateObject
err := r.db.Find("id", state, &state)
if err != nil {
log.Error("GetAccountCpuLimitEx is error: %s", err)
}
config := entity.DefaultResourceLimitsConfigObject
err = r.db.Find("id", config, &config)
if err != nil {
log.Error("GetAccountCpuLimitEx is error: %s", err)
}
usage := entity.ResourceUsageObject{}
usage.Owner = name
err = r.db.Find("byOwner", usage, &usage)
if err != nil {
log.Error("GetAccountCpuLimitEx is error: %s", err)
}
var cpuWeight, x, y int64
r.GetAccountLimits(name, &x, &y, &cpuWeight)
if cpuWeight < 0 || state.TotalCpuWeight == 0 {
return types.AccountResourceLimit{-1, -1, -1}
}
arl := types.AccountResourceLimit{}
windowSize := uint64(config.AccountCpuUsageAverageWindow)
virtualCpuCapacityInWindow := eos_math.Uint128{}
if elastic {
virtualCpuCapacityInWindow = eos_math.MulUint64(state.VirtualCpuLimit, windowSize)
} else {
virtualCpuCapacityInWindow = eos_math.MulUint64(config.CpuLimitParameters.Max, windowSize)
}
userWeight := eos_math.Uint128{Low: uint64(cpuWeight)}
allUserWeight := eos_math.Uint128{Low: state.TotalCpuWeight}
maxUserUseInWindow := virtualCpuCapacityInWindow.Mul(userWeight)
maxUserUseInWindow, _ = maxUserUseInWindow.Div(allUserWeight)
cpuUsedInWindow := eos_math.MulUint64(usage.CpuUsage.ValueEx, windowSize)
cpuUsedInWindow, _ = cpuUsedInWindow.Div(eos_math.Uint128{Low: uint64(common.DefaultConfig.RateLimitingPrecision)})
if maxUserUseInWindow.Compare(cpuUsedInWindow) != 1 {
arl.Available = 0
} else {
arl.Available = types.DowngradeCast(maxUserUseInWindow.Sub(cpuUsedInWindow))
}
arl.Used = types.DowngradeCast(cpuUsedInWindow)
arl.Max = types.DowngradeCast(maxUserUseInWindow)
return arl
}
func (r *ResourceLimitsManager) GetAccountNetLimit(name common.AccountName, elastic bool) int64 {
arl := r.GetAccountNetLimitEx(name, elastic)
return arl.Available
}
func (r *ResourceLimitsManager) GetAccountNetLimitEx(name common.AccountName, elastic bool) types.AccountResourceLimit {
state := entity.DefaultResourceLimitsStateObject
err := r.db.Find("id", state, &state)
if err != nil {
log.Error("GetAccountNetLimitEx is error: %s", err)
}
config := entity.DefaultResourceLimitsConfigObject
err = r.db.Find("id", config, &config)
if err != nil {
log.Error("GetAccountNetLimitEx is error: %s", err)
}
usage := entity.ResourceUsageObject{}
usage.Owner = name
err = r.db.Find("byOwner", usage, &usage)
if err != nil {
log.Error("GetAccountNetLimitEx is error: %s", err)
}
var netWeight, x, y int64
r.GetAccountLimits(name, &x, &netWeight, &y)
if netWeight < 0 || state.TotalNetWeight == 0 {
return types.AccountResourceLimit{-1, -1, -1}
}
arl := types.AccountResourceLimit{}
windowSize := uint64(config.AccountCpuUsageAverageWindow)
virtualNetworkCapacityInWindow := eos_math.Uint128{}
if elastic {
virtualNetworkCapacityInWindow = eos_math.MulUint64(state.VirtualNetLimit, windowSize)
} else {
virtualNetworkCapacityInWindow = eos_math.MulUint64(config.NetLimitParameters.Max, windowSize)
}
userWeight := eos_math.Uint128{Low: uint64(netWeight)}
allUserWeight := eos_math.Uint128{Low: state.TotalNetWeight}
maxUserUseInWindow := virtualNetworkCapacityInWindow.Mul(userWeight)
maxUserUseInWindow, _ = maxUserUseInWindow.Div(allUserWeight)
netUsedInWindow := eos_math.MulUint64(usage.NetUsage.ValueEx, windowSize)
netUsedInWindow, _ = netUsedInWindow.Div(eos_math.Uint128{Low: uint64(common.DefaultConfig.RateLimitingPrecision)})
if maxUserUseInWindow.Compare(netUsedInWindow) != 1 {
arl.Available = 0
} else {
arl.Available = types.DowngradeCast(maxUserUseInWindow.Sub(netUsedInWindow))
}
arl.Used = types.DowngradeCast(netUsedInWindow)
arl.Max = types.DowngradeCast(maxUserUseInWindow)
return arl
}