101 lines
2.6 KiB
Rust
101 lines
2.6 KiB
Rust
//! @brief Solana Rust-based BPF program logging
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#![cfg(feature = "program")]
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use crate::{account_info::AccountInfo, pubkey::Pubkey};
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/// Prints a string
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/// There are two forms and are fast
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/// 1. Single string
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/// 2. 5 integers
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#[macro_export]
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macro_rules! info {
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($msg:expr) => {
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$crate::log::sol_log($msg)
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};
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($arg1:expr, $arg2:expr, $arg3:expr, $arg4:expr, $arg5:expr) => {
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$crate::log::sol_log_64(
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$arg1 as u64,
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$arg2 as u64,
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$arg3 as u64,
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$arg4 as u64,
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$arg5 as u64,
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)
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}; // `format!()` is not supported yet, Issue #3099
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// `format!()` incurs a very large runtime overhead so it should be used with care
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// ($($arg:tt)*) => ($crate::log::sol_log(&format!($($arg)*)));
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}
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/// Prints a string to stdout
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///
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/// @param message - Message to print
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#[inline]
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pub fn sol_log(message: &str) {
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unsafe {
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sol_log_(message.as_ptr(), message.len() as u64);
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}
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}
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extern "C" {
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fn sol_log_(message: *const u8, len: u64);
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}
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/// Prints 64 bit values represented as hexadecimal to stdout
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///
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/// @param argx - integer arguments to print
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#[inline]
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pub fn sol_log_64(arg1: u64, arg2: u64, arg3: u64, arg4: u64, arg5: u64) {
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unsafe {
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sol_log_64_(arg1, arg2, arg3, arg4, arg5);
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}
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}
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extern "C" {
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fn sol_log_64_(arg1: u64, arg2: u64, arg3: u64, arg4: u64, arg5: u64);
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}
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/// Prints the hexadecimal representation of a slice
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///
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/// @param slice - The array to print
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#[allow(dead_code)]
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pub fn sol_log_slice(slice: &[u8]) {
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for (i, s) in slice.iter().enumerate() {
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info!(0, 0, 0, i, *s);
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}
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}
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/// Prints a pubkey
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pub trait Log {
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fn log(&self);
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}
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impl Log for Pubkey {
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fn log(&self) {
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for (i, k) in self.to_bytes().iter().enumerate() {
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info!(0, 0, 0, i, *k);
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}
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}
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}
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/// Prints the hexadecimal representation of the program's input parameters
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///
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/// @param ka - A pointer to an array of `AccountInfo` to print
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/// @param data - A pointer to the instruction data to print
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#[allow(dead_code)]
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pub fn sol_log_params(accounts: &[AccountInfo], data: &[u8]) {
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for (i, account) in accounts.iter().enumerate() {
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info!("AccountInfo");
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info!(0, 0, 0, 0, i);
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info!("- Is signer");
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info!(0, 0, 0, 0, account.is_signer);
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info!("- Key");
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account.key.log();
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info!("- Lamports");
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info!(0, 0, 0, 0, account.lamports());
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info!("- Account data length");
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info!(0, 0, 0, 0, account.data_len());
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info!("- Owner");
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account.owner.log();
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}
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info!("Instruction data");
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sol_log_slice(data);
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}
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