Module gear_core::gas_metering

This module is used to instrument a Wasm module with gas metering code.

Structs

• ConstantCostRules
  A type that implements Rules so that every instruction costs the same.
• CustomConstantCostRules
  This type provides the functionality of ConstantCostRules.
• DbWeights
  Describes DB access weights.
• InstantiationWeights
  Describes the weight for instantiation of the module.
• InstructionWeights
  Describes the weight for all categories of supported wasm instructions.
• Limits
  Describes the upper limits on various metrics.
• MemoryWeights
  Describes the weight for memory interaction.
• RentWeights
  Describes the weight for renting.
• Schedule
  Definition of the cost schedule and other parameterization for the wasm vm.
• ScheduleRules
  This type provides real gas cost of instructions on pallet-gear.
• SyscallWeights
  Describes the weight for each imported function that a program is allowed to call.
• TaskWeights
  Describes weights for running tasks.
• Weight
  Represents the computational time and storage space required for an operation.

Enums

• MemoryGrowCost
  Dynamic costs for memory growth.

Traits

• Rules
  An interface that describes instruction costs.

Functions

• inject
  Transforms a given module into one that charges gas for code to be executed by proxy of an imported gas metering function.
• post_injection_handler
  Helper procedure that makes adjustments after gas metering function injected.