59 lines
1.7 KiB
Rust
59 lines
1.7 KiB
Rust
use anchor_lang::prelude::*;
|
|
|
|
use crate::state::*;
|
|
|
|
#[derive(Accounts)]
|
|
pub struct AccountExpand<'info> {
|
|
pub group: AccountLoader<'info, Group>,
|
|
|
|
#[account(mut, has_one = group, has_one = owner)]
|
|
pub account: AccountLoaderDynamic<'info, MangoAccount>,
|
|
|
|
pub owner: Signer<'info>,
|
|
|
|
#[account(mut)]
|
|
pub payer: Signer<'info>,
|
|
|
|
pub system_program: Program<'info, System>,
|
|
}
|
|
|
|
pub fn account_expand(ctx: Context<AccountExpand>) -> Result<()> {
|
|
let account_size = {
|
|
let account = ctx.accounts.account.load()?;
|
|
account.size()
|
|
};
|
|
|
|
require_eq!(account_size, AccountSize::Small);
|
|
|
|
let new_space = MangoAccount::space(AccountSize::Large.try_into().unwrap());
|
|
let new_rent_minimum = Rent::get()?.minimum_balance(new_space);
|
|
|
|
let realloc_account = ctx.accounts.account.as_ref();
|
|
let old_space = realloc_account.data_len();
|
|
|
|
require_gt!(new_space, old_space);
|
|
|
|
// transfer required additional rent
|
|
anchor_lang::system_program::transfer(
|
|
anchor_lang::context::CpiContext::new(
|
|
ctx.accounts.system_program.to_account_info(),
|
|
anchor_lang::system_program::Transfer {
|
|
from: ctx.accounts.payer.to_account_info(),
|
|
to: realloc_account.clone(),
|
|
},
|
|
),
|
|
new_rent_minimum
|
|
.checked_sub(realloc_account.lamports())
|
|
.unwrap(),
|
|
)?;
|
|
|
|
// realloc
|
|
realloc_account.realloc(new_space, true)?;
|
|
|
|
// expand dynamic content, e.g. to grow token positions, we need to slide serum3orders further later, and so on....
|
|
let mut account = ctx.accounts.account.load_mut()?;
|
|
account.expand_dynamic_content(AccountSize::Large.try_into().unwrap())?;
|
|
|
|
Ok(())
|
|
}
|