Module solana_program::clock [−][src]
Expand description
Provides information about the network’s clock which is made up of ticks, slots, etc…
Structs
Clock represents network time. Members of Clock start from 0 upon network boot. The best way to map Clock to wallclock time is to use current Slot, as Epochs vary in duration (they start short and grow as the network progresses).
Constants
The time window of recent block hash values that the bank will track the signatures
of over. Once the bank discards a block hash, it will reject any transactions that use
that recent_blockhash in a transaction. Lowering this value reduces memory consumption,
but requires clients to update its recent_blockhash more frequently. Raising the value
lengthens the time a client must wait to be certain a missing transaction will
not be processed by the network.
More delay is expected if CUDA is not enabled (as signature verification takes longer)
This is maximum time consumed in forwarding a transaction from one node to next, before it can be processed in the target node
Type Definitions
Uniquely distinguishes every version of a slot, even if the slot number is the same, i.e. duplicate slots
Epoch is a unit of time a given leader schedule is honored, some number of Slots.
Slot is a unit of time given to a leader for encoding, is some some number of Ticks long.
SlotCount is the number of slots in a epoch
SlotIndex is an index to the slots of a epoch
UnixTimestamp is an approximate measure of real-world time, expressed as Unix time (ie. seconds since the Unix epoch)