2018-09-26 09:07:53 -07:00
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//! The `system_transaction` module provides functionality for creating system transactions.
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2018-12-14 20:39:10 -08:00
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use crate::hash::Hash;
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use crate::pubkey::Pubkey;
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2019-03-21 09:03:50 -07:00
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use crate::signature::{Keypair, KeypairUtil};
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2019-04-03 08:45:57 -07:00
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use crate::system_instruction;
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2018-12-14 20:39:10 -08:00
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use crate::system_program;
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2019-03-21 09:03:50 -07:00
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use crate::transaction::Transaction;
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2018-11-16 08:04:46 -08:00
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2019-04-03 08:45:57 -07:00
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/// Create and sign new SystemInstruction::CreateAccount transaction
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pub fn create_account(
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from_keypair: &Keypair,
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to: &Pubkey,
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recent_blockhash: Hash,
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lamports: u64,
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space: u64,
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program_id: &Pubkey,
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_fee: u64,
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) -> Transaction {
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let from_pubkey = from_keypair.pubkey();
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let create_instruction =
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system_instruction::create_account(&from_pubkey, to, lamports, space, program_id);
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let instructions = vec![create_instruction];
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Transaction::new_signed_instructions(&[from_keypair], instructions, recent_blockhash)
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}
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2019-02-01 07:36:35 -08:00
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2019-04-03 08:45:57 -07:00
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/// Create and sign a transaction to create a system account
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pub fn create_user_account(
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from_keypair: &Keypair,
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to: &Pubkey,
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lamports: u64,
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recent_blockhash: Hash,
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fee: u64,
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) -> Transaction {
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let program_id = system_program::id();
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create_account(
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from_keypair,
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to,
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recent_blockhash,
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lamports,
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0,
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&program_id,
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fee,
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)
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}
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2019-03-21 09:03:50 -07:00
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2019-04-03 08:45:57 -07:00
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/// Create and sign new system_instruction::Assign transaction
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pub fn assign(
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from_keypair: &Keypair,
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recent_blockhash: Hash,
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program_id: &Pubkey,
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_fee: u64,
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) -> Transaction {
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let from_pubkey = from_keypair.pubkey();
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let assign_instruction = system_instruction::assign(&from_pubkey, program_id);
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let instructions = vec![assign_instruction];
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Transaction::new_signed_instructions(&[from_keypair], instructions, recent_blockhash)
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}
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2019-03-21 09:03:50 -07:00
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2019-04-03 08:45:57 -07:00
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/// Create and sign new system_instruction::Transfer transaction
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pub fn transfer(
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from_keypair: &Keypair,
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to: &Pubkey,
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lamports: u64,
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recent_blockhash: Hash,
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_fee: u64,
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) -> Transaction {
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let from_pubkey = from_keypair.pubkey();
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2019-04-23 12:30:42 -07:00
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let transfer_instruction = system_instruction::transfer(&from_pubkey, to, lamports);
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let instructions = vec![transfer_instruction];
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2019-04-03 08:45:57 -07:00
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Transaction::new_signed_instructions(&[from_keypair], instructions, recent_blockhash)
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2018-09-26 09:07:53 -07:00
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}
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