solana/validator/src/lib.rs

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2.2 KiB
Rust
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pub use solana_core::test_validator;
use {
log::*,
std::{env, process::exit, thread::JoinHandle},
};
#[cfg(unix)]
fn redirect_stderr(filename: &str) {
use std::{fs::OpenOptions, os::unix::io::AsRawFd};
match OpenOptions::new()
.write(true)
.create(true)
.append(true)
.open(filename)
{
Ok(file) => unsafe {
libc::dup2(file.as_raw_fd(), libc::STDERR_FILENO);
},
Err(err) => eprintln!("Unable to open {}: {}", filename, err),
}
}
pub fn start_logger(logfile: Option<String>) -> Option<JoinHandle<()>> {
// Default to RUST_BACKTRACE=1 for more informative validator logs
if env::var_os("RUST_BACKTRACE").is_none() {
env::set_var("RUST_BACKTRACE", "1")
}
let logger_thread = match logfile {
None => None,
Some(logfile) => {
#[cfg(unix)]
{
let signals = signal_hook::iterator::Signals::new(&[signal_hook::SIGUSR1])
.unwrap_or_else(|err| {
eprintln!("Unable to register SIGUSR1 handler: {:?}", err);
exit(1);
});
redirect_stderr(&logfile);
Some(std::thread::spawn(move || {
for signal in signals.forever() {
info!(
"received SIGUSR1 ({}), reopening log file: {:?}",
signal, logfile
);
redirect_stderr(&logfile);
}
}))
}
#[cfg(not(unix))]
{
println!("logging to a file is not supported on this platform");
()
}
}
};
solana_logger::setup_with_default(
&[
"solana=info,solana_runtime::message_processor=error", /* info logging for all solana modules */
"rpc=trace", /* json_rpc request/response logging */
]
.join(","),
);
logger_thread
}
pub fn port_validator(port: String) -> Result<(), String> {
port.parse::<u16>()
.map(|_| ())
.map_err(|e| format!("{:?}", e))
}