Function diem_transaction_builder::stdlib::encode_set_gas_constants_script_function

pub fn encode_set_gas_constants_script_function(
    sliding_nonce: u64, 
    global_memory_per_byte_cost: u64, 
    global_memory_per_byte_write_cost: u64, 
    min_transaction_gas_units: u64, 
    large_transaction_cutoff: u64, 
    intrinsic_gas_per_byte: u64, 
    maximum_number_of_gas_units: u64, 
    min_price_per_gas_unit: u64, 
    max_price_per_gas_unit: u64, 
    max_transaction_size_in_bytes: u64, 
    gas_unit_scaling_factor: u64, 
    default_account_size: u64
) -> TransactionPayload

Summary

Updates the gas constants stored on chain and used by the VM for gas metering. This transaction can only be sent from the Diem Root account.

Technical Description

Updates the on-chain config holding the DiemVMConfig and emits a DiemConfig::NewEpochEvent to trigger a reconfiguration of the system.

Parameters

Name	Type	Description
account	signer	Signer of the sending account. Must be the Diem Root account.
sliding_nonce	u64	The sliding_nonce (see: SlidingNonce) to be used for this transaction.
global_memory_per_byte_cost	u64	The new cost to read global memory per-byte to be used for gas metering.
global_memory_per_byte_write_cost	u64	The new cost to write global memory per-byte to be used for gas metering.
min_transaction_gas_units	u64	The new flat minimum amount of gas required for any transaction.
large_transaction_cutoff	u64	The new size over which an additional charge will be assessed for each additional byte.
intrinsic_gas_per_byte	u64	The new number of units of gas that to be charged per-byte over the new large_transaction_cutoff.
maximum_number_of_gas_units	u64	The new maximum number of gas units that can be set in a transaction.
min_price_per_gas_unit	u64	The new minimum gas price that can be set for a transaction.
max_price_per_gas_unit	u64	The new maximum gas price that can be set for a transaction.
max_transaction_size_in_bytes	u64	The new maximum size of a transaction that can be processed.
gas_unit_scaling_factor	u64	The new scaling factor to use when scaling between external and internal gas units.
default_account_size	u64	The new default account size to use when assessing final costs for reads and writes to global storage.

Common Abort Conditions

Error Category	Error Reason	Description
Errors::INVALID_ARGUMENT	DiemVMConfig::EGAS_CONSTANT_INCONSISTENCY	The provided gas constants are inconsistent.
Errors::NOT_PUBLISHED	SlidingNonce::ESLIDING_NONCE	A SlidingNonce resource is not published under account.
Errors::INVALID_ARGUMENT	SlidingNonce::ENONCE_TOO_OLD	The sliding_nonce is too old and it’s impossible to determine if it’s duplicated or not.
Errors::INVALID_ARGUMENT	SlidingNonce::ENONCE_TOO_NEW	The sliding_nonce is too far in the future.
Errors::INVALID_ARGUMENT	SlidingNonce::ENONCE_ALREADY_RECORDED	The sliding_nonce has been previously recorded.
Errors::REQUIRES_ADDRESS	CoreAddresses::EDIEM_ROOT	account is not the Diem Root account.