Created
October 19, 2016 07:25
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Rust handle oom
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| extern crate nix; | |
| use nix::sys::signal; | |
| struct Foo; | |
| impl Drop for Foo { | |
| fn drop(&mut self) { | |
| println!("drop."); | |
| } | |
| } | |
| extern fn oomhook(_: i32) { panic!("oom!") } | |
| fn main() { | |
| let foo = Foo; | |
| let sigaction = signal::SigAction::new( | |
| signal::SigHandler::Handler(oomhook), | |
| signal::SA_SIGINFO, | |
| signal::SigSet::empty(), | |
| ); | |
| unsafe { signal::sigaction(signal::SIGILL, &sigaction).ok() }; | |
| vec![0; 999999999999999]; | |
| } |
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| [I] ➜ testoom git:(master) ✗ cargo run | |
| Finished debug [unoptimized + debuginfo] target(s) in 0.0 secs | |
| Running `target/debug/testoom` | |
| fatal runtime error: out of memory | |
| thread 'main' panicked at 'oom!', src/main.rs:13 | |
| note: Run with `RUST_BACKTRACE=1` for a backtrace. | |
| drop. | |
| error: process didn't exit successfully: `target/debug/testoom` (exit code: 101) |
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