22 lines
848 B
Rust
22 lines
848 B
Rust
use crate::error::ErrorCode;
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use crate::prelude::error;
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use crate::Result;
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use solana_program::account_info::AccountInfo;
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use std::io::Write;
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pub fn close<'info>(info: AccountInfo<'info>, sol_destination: AccountInfo<'info>) -> Result<()> {
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// Transfer tokens from the account to the sol_destination.
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let dest_starting_lamports = sol_destination.lamports();
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**sol_destination.lamports.borrow_mut() =
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dest_starting_lamports.checked_add(info.lamports()).unwrap();
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**info.lamports.borrow_mut() = 0;
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// Mark the account discriminator as closed.
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let mut data = info.try_borrow_mut_data()?;
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let dst: &mut [u8] = &mut data;
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let mut cursor = std::io::Cursor::new(dst);
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cursor
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.write_all(&crate::__private::CLOSED_ACCOUNT_DISCRIMINATOR)
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.map_err(|_| error!(ErrorCode::AccountDidNotSerialize))
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}
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