Function process_close

programs/asset/program/src/processor/close.rs:17–48

Closes an uninitialized asset buffer account. ### Accounts: 0. `[writable, signer]` buffer 1. `[writable]` recipient

(program_id: &Pubkey, ctx: Context<Close>)

///   0. `[writable, signer]` buffer
///   1. `[writable]` recipient
pub fn process_close(program_id: &Pubkey, ctx: Context<Close>) -> ProgramResult {
    // account validation

    require!(
        ctx.accounts.buffer.is_signer(),
        ProgramError::MissingRequiredSignature,
        "buffer"
    );

    require!(
        ctx.accounts.buffer.owner() == program_id,
        ProgramError::IllegalOwner,
        "buffer"
    );

    let data = ctx.accounts.buffer.try_borrow_data()?;

    if !data.is_empty() {
        // make sure that the asset is uninitialized
        require!(
            data[0] == Discriminator::Uninitialized.into(),
            AssetError::AlreadyInitialized,
            "buffer"
        );
    }

    drop(data);

    // close the buffer account

    close_program_account(ctx.accounts.buffer, ctx.accounts.recipient)
}