55 lines
1.6 KiB
Rust
55 lines
1.6 KiB
Rust
use anchor_lang::prelude::*;
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use crate::error::MangoError;
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use crate::state::{Book, BookSide, Group, MangoAccount, PerpMarket};
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#[derive(Accounts)]
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pub struct PerpCancelOrder<'info> {
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pub group: AccountLoader<'info, Group>,
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#[account(
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mut,
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has_one = group,
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constraint = account.load()?.is_owner_or_delegate(owner.key()),
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)]
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pub account: AccountLoader<'info, MangoAccount>,
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pub owner: Signer<'info>,
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#[account(
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mut,
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has_one = group,
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has_one = bids,
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has_one = asks
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)]
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pub perp_market: AccountLoader<'info, PerpMarket>,
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#[account(mut)]
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pub asks: AccountLoader<'info, BookSide>,
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#[account(mut)]
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pub bids: AccountLoader<'info, BookSide>,
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}
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pub fn perp_cancel_order(ctx: Context<PerpCancelOrder>, order_id: i128) -> Result<()> {
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let mut mango_account = ctx.accounts.account.load_mut()?;
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require!(mango_account.is_bankrupt == 0, MangoError::IsBankrupt);
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let perp_market = ctx.accounts.perp_market.load_mut()?;
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let bids = ctx.accounts.bids.load_mut()?;
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let asks = ctx.accounts.asks.load_mut()?;
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let mut book = Book::new(bids, asks);
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let side = mango_account
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.perps
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.find_order_side(perp_market.perp_market_index, order_id)
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.ok_or_else(|| error!(MangoError::SomeError))?; // InvalidOrderId
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let order = book.cancel_order(order_id, side)?;
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require!(
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order.owner == ctx.accounts.account.key(),
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MangoError::SomeError // InvalidOwner
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);
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mango_account
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.perps
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.remove_order(order.owner_slot as usize, order.quantity)
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}
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