percli_program/instructions/
trade.rs

1use anchor_lang::prelude::*;
2
3use crate::error::{from_risk_error, PercolatorError};
4use crate::state::{engine_from_account_data, MARKET_ACCOUNT_SIZE};
5
6#[derive(Accounts)]
7pub struct Trade<'info> {
8    /// Either both traders sign, or a matcher authority signs on their behalf.
9    pub signer: Signer<'info>,
10
11    /// CHECK: Validated via owner, discriminator, and size.
12    #[account(
13        mut,
14        owner = crate::ID @ PercolatorError::AccountNotFound,
15        constraint = market.data_len() == MARKET_ACCOUNT_SIZE @ PercolatorError::AccountNotFound,
16    )]
17    pub market: UncheckedAccount<'info>,
18}
19
20pub fn handler(
21    ctx: Context<Trade>,
22    account_a: u16,
23    account_b: u16,
24    size_q: i128,
25    exec_price: u64,
26    funding_rate: i64,
27) -> Result<()> {
28    require!(account_a != account_b, PercolatorError::InvalidMatchingEngine);
29
30    let market = &ctx.accounts.market;
31    let mut data = market.try_borrow_mut_data()?;
32
33    require!(&data[0..8] == b"percmrkt", PercolatorError::AccountNotFound);
34
35    let engine = engine_from_account_data(&mut data);
36    let oracle_price = engine.last_oracle_price;
37    let clock = Clock::get()?;
38
39    engine
40        .execute_trade_not_atomic(
41            account_a,
42            account_b,
43            oracle_price,
44            clock.slot,
45            size_q,
46            exec_price,
47            funding_rate,
48        )
49        .map_err(from_risk_error)?;
50
51    Ok(())
52}
percli_program/instructions/trade.rs

percli_program/instructions/
trade.rs
