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https://github.com/logos-blockchain/lez-programs.git
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e8fe634a2c
Add RecordTick — a permissionless instruction that reads the current tick from a CurrentTickAccount and advances a PriceObservations ring buffer. Authorization is implicit: both PDAs are verified against price_source_id, so the tick can only have been written by whoever controls that price source. A sampling guard silently no-ops if less than `window_duration / OBSERVATIONS_CAPACITY`` ms have elapsed, allowing keepers to call blindly on every block. Tick-delta truncation clamps the per-observation delta to `MAX_TICK_DELTA (9 116)` before advancing tick_cumulative, with last_recorded_tick tracking the untruncated position for the next delta. Also switches ObservationEntry.tick_cumulative to use elapsed milliseconds rather than seconds. Closes #116
271 lines
5.3 KiB
JSON
271 lines
5.3 KiB
JSON
{
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"version": "0.1.0",
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"name": "twap_oracle",
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"instructions": [
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{
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"name": "create_price_observations",
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"accounts": [
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{
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"name": "price_observations",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "price_source",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "clock",
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"writable": false,
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"signer": false,
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"init": false
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}
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],
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"args": [
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{
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"name": "initial_tick",
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"type": "i32"
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},
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{
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"name": "window_duration",
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"type": "u64"
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}
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]
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},
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{
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"name": "create_oracle_price_account",
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"accounts": [
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{
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"name": "oracle_price_account",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "price_source",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "clock",
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"writable": false,
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"signer": false,
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"init": false
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}
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],
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"args": [
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{
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"name": "base_asset",
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"type": "account_id"
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},
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{
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"name": "quote_asset",
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"type": "account_id"
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},
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{
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"name": "initial_price",
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"type": "u128"
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},
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{
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"name": "window_duration",
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"type": "u64"
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}
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]
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},
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{
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"name": "create_current_tick_account",
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"accounts": [
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{
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"name": "current_tick_account",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "price_source",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "clock",
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"writable": false,
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"signer": false,
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"init": false
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}
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],
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"args": [
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{
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"name": "initial_price",
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"type": "u128"
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}
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]
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},
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{
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"name": "record_tick",
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"accounts": [
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{
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"name": "price_observations",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "current_tick_account",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "clock",
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"writable": false,
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"signer": false,
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"init": false
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}
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],
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"args": [
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{
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"name": "price_source_id",
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"type": "account_id"
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},
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{
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"name": "window_duration",
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"type": "u64"
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}
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]
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},
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{
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"name": "update_current_tick",
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"accounts": [
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{
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"name": "current_tick_account",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "price_source",
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"writable": false,
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"signer": false,
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"init": false
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},
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{
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"name": "clock",
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"writable": false,
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"signer": false,
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"init": false
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}
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],
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"args": [
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{
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"name": "price",
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"type": "u128"
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}
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]
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}
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],
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"accounts": [
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{
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"name": "PriceObservations",
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"type": {
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"kind": "struct",
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"fields": [
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{
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"name": "price_source_id",
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"type": "account_id"
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},
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{
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"name": "write_index",
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"type": "u32"
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},
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{
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"name": "total_entries",
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"type": "u64"
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},
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{
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"name": "last_recorded_tick",
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"type": "i32"
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},
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{
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"name": "entries",
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"type": {
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"vec": {
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"defined": "ObservationEntry"
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}
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}
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}
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]
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}
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},
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{
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"name": "OraclePriceAccount",
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"type": {
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"kind": "struct",
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"fields": [
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{
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"name": "base_asset",
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"type": "account_id"
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},
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{
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"name": "quote_asset",
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"type": "account_id"
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},
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{
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"name": "price",
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"type": "u128"
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},
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{
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"name": "timestamp",
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"type": "u64"
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},
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{
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"name": "source_id",
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"type": "account_id"
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},
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{
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"name": "confidence_interval",
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"type": "u128"
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}
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]
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}
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},
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{
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"name": "CurrentTickAccount",
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"type": {
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"kind": "struct",
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"fields": [
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{
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"name": "tick",
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"type": "i32"
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},
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{
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"name": "last_updated",
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"type": "u64"
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}
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]
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}
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}
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],
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"types": [
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{
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"name": "ObservationEntry",
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"kind": "struct",
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"fields": [
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{
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"name": "timestamp",
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"type": "u64"
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},
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{
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"name": "tick_cumulative",
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"type": "i64"
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}
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]
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}
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],
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"instruction_type": "twap_oracle_core::Instruction"
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}
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