52 lines
1.6 KiB
Rust
52 lines
1.6 KiB
Rust
//! @brief Example Rust-based BPF program that tests duplicate accounts passed via accounts
|
|
|
|
extern crate solana_program;
|
|
use solana_program::{
|
|
account_info::AccountInfo, entrypoint, entrypoint::ProgramResult, msg,
|
|
program_error::ProgramError, pubkey::Pubkey,
|
|
};
|
|
|
|
entrypoint!(process_instruction);
|
|
fn process_instruction(
|
|
_program_id: &Pubkey,
|
|
accounts: &[AccountInfo],
|
|
instruction_data: &[u8],
|
|
) -> ProgramResult {
|
|
match instruction_data[0] {
|
|
1 => {
|
|
msg!("modify first account data");
|
|
accounts[2].data.borrow_mut()[0] = 1;
|
|
}
|
|
2 => {
|
|
msg!("modify first account data");
|
|
accounts[3].data.borrow_mut()[0] = 2;
|
|
}
|
|
3 => {
|
|
msg!("modify both account data");
|
|
accounts[2].data.borrow_mut()[0] += 1;
|
|
accounts[3].data.borrow_mut()[0] += 2;
|
|
}
|
|
4 => {
|
|
msg!("modify first account lamports");
|
|
**accounts[1].lamports.borrow_mut() -= 1;
|
|
**accounts[2].lamports.borrow_mut() += 1;
|
|
}
|
|
5 => {
|
|
msg!("modify first account lamports");
|
|
**accounts[1].lamports.borrow_mut() -= 2;
|
|
**accounts[3].lamports.borrow_mut() += 2;
|
|
}
|
|
6 => {
|
|
msg!("modify both account lamports");
|
|
**accounts[1].lamports.borrow_mut() -= 3;
|
|
**accounts[2].lamports.borrow_mut() += 1;
|
|
**accounts[3].lamports.borrow_mut() += 2;
|
|
}
|
|
_ => {
|
|
msg!("Unrecognized command");
|
|
return Err(ProgramError::InvalidArgument);
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|