Default //负载对象有一个特殊的实现 PartialEq/Eq/PartialOrd/Ord/Hash 序列和迭代器 (Sequences and Iterators) Iterator IntoIterator //实现了 DoubleEndedIterator 特性的迭代器不仅可以从前向后遍历,还可以从后向前遍历。 DoubleEndedIterator //实现了 ExactSizeIterator 特性的迭代器必须实现 len 方法,返回迭代器...
use signal_hook::consts::SIGALRM; use nix::sys::signal::{self, Signal}; use nix::unistd::{alarm, Pid}; /// alarm will be called from `execute_shell(timeout: u32)` /// after function collects user input it calls `alarm::set(timeout)` ...
在rust中使用linux的信号机制，我们需要引入一个nix库。nix库的crate地址为： https://crates.io/crates/nix .在Cargo.toml中导入：在rs文件开头写入：1.在创建sig_action的函数内，我们的第一个参数 signal::SigHandler::Handler(signal_handler) ，这其中的signal_handler就是我们自定义的、信号触发后...
Handler结构体主要有以下几个作用: 注册和反注册异常信号处理程序:Handler结构体通过实现SignalHandler trait,可以将自身注册为异常信号处理程序,使得当栈溢出异常发生时能够执行相应的代码逻辑。 备份和恢复信号处理器:Handler结构体保存了之前的异常信号处理器,以便在处理栈溢出之后,将信号处理器恢复为之前的状态。这样可以...
use std::os::unix::signal::{Signal, SigAction, SA_SIGINFO, SA_RESTART}; use std::sync::atomic::{AtomicBool, Ordering}; use std::sync::Arc; use std::thread; use std::time::Duration; fn main() { let exit_flag = Arc::new(AtomicBool::new(false)); let exit_flag_clone = exit...
(unix)] let mut sigterm = signal(SignalKind::terminate).expect("Failed to bind SIGTERM handler"); let signal = async { tokio::select! { _ = signal::ctrl_c => , #[cfg(unix)] _ = sigterm.recv => , } println!("Received termination signal, shutting down..."); }; tokio::select...
This PR install the signal stack handler to more signals (SIGILL, SIGTRAP, SIGABRT, SIGFPE, SIGBUS, SIGQUIT). Noticed in #137138 that we didn't print anything for SIGILL, so I though we could just handle more signals. r? @workingjubilee since you last touched it Collaborator rustbot comm...
/// Signal handler installed for SIGSEGV extern "C" fn print_stack_trace(_: libc::c_int) { Member Author RalfJung commented Mar 31, 2024 FWIW I was wrong about which Windows target does not have #[thread_local] -- it's 32bit MSVC, not GNU. This is to work around #95429. ...
在单线程时代,编写信号处理程序就是一件棘手的事情,更何况多线程时代,由于Signal会打断正在运行的线程,包括Signal handler也会被其后的信号打断!所以Signal展现了明显的异步和并发特性,所以要求Linux Signal Handler中只可以call '异步信号安全函数, 具体而言就是:可重入函数和信号不可中断函数(即原子性), 所以Signal H...
{ let sig_action = signal::SigAction::new( signal::SigHandler::SigAction(handle), signal::SaFlags::empty(), signal::SigSet::empty()); signal::sigaction(signal::SIGSEGV, &sig_action) }; } fn main() { if install_signal_handler() == false { std::process::exit(1) } thread::sleep...