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Move SLOTS_PER_SEGMENT to genesis (#4992)

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This commit is contained in:
Sagar Dhawan
2019-07-09 16:48:40 -07:00
committed by Grimes
parent 32b55e6703
commit b8e7736af2
19 changed files with 315 additions and 162 deletions
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10
sdk/src/timing.rs
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@ -13,6 +13,9 @@ pub const DEFAULT_TICKS_PER_SLOT: u64 = 4;
// 1 Epoch = 400 * 8192 ms ~= 55 minutes
pub const DEFAULT_SLOTS_PER_EPOCH: u64 = 8192;
// Storage segment configuration
pub const DEFAULT_SLOTS_PER_SEGMENT: u64 = 16;
pub const NUM_CONSECUTIVE_LEADER_SLOTS: u64 = 4;
/// The time window of recent block hash values that the bank will track the signatures
@ -61,10 +64,17 @@ pub fn timestamp() -> u64 {
duration_as_ms(&now)
}
pub fn get_segment_from_slot(slot: Slot, slots_per_segment: u64) -> Segment {
((slot + (slots_per_segment - 1)) / slots_per_segment)
}
/// Slot is a unit of time given to a leader for encoding,
/// is some some number of Ticks long. Use a u64 to count them.
pub type Slot = u64;
/// A segment is some number of slots stored by replicators
pub type Segment = u64;
/// Epoch is a unit of time a given leader schedule is honored,
/// some number of Slots. Use a u64 to count them.
pub type Epoch = u64;