[−][src]Module solana_sdk::clock

Provides information about the network's clock which is made up of ticks, slots, segments, etc...

Constants

DEFAULT_SLOTS_PER_EPOCH
DEFAULT_SLOTS_PER_SEGMENT
DEFAULT_SLOTS_PER_TURN
DEFAULT_TICKS_PER_SECOND
DEFAULT_TICKS_PER_SLOT
MAX_HASH_AGE_IN_SECONDS	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.
MAX_PROCESSING_AGE
MAX_RECENT_BLOCKHASHES
MAX_TRANSACTION_FORWARDING_DELAY	More delay is expected if CUDA is not enabled (as signature verification takes longer)
MAX_TRANSACTION_FORWARDING_DELAY_GPU	This is maximum time consumed in forwarding a transaction from one node to next, before it can be processed in the target node
NUM_CONSECUTIVE_LEADER_SLOTS

get_complete_segment_from_slot	Given a slot returns the latest complete segment, if no segment could possibly be complete for a given slot it returns `None` (i.e if `slot < slots_per_segment`)
get_segment_from_slot	Converts a slot to a storage segment. Does not indicate that a segment is complete.

Epoch	Epoch is a unit of time a given leader schedule is honored, some number of Slots.
Segment	A segment is some number of slots stored by archivers
Slot	Slot is a unit of time given to a leader for encoding, is some some number of Ticks long.