abort-signal

SIGABRT signal handler and raiser for ZZ

Installation

Add this to your zz.toml file:

[dependencies]
abort_signal = "*"

[repos]
abort_signal = "git+ssh://[email protected]/zzmodules/abort-signal.git"

Usage

using abort_signal

API

abort_was_caught = abort_signal::abort(error)

Raises the abort signal (SIGABRT). If a abort signal callback function was set, then the raised signal will be caught by it. The default behaviour will be that of the native abort() function when the SIGABRT handler is raises. If the SIGABRT signal is caught by another function not set by this module, then it will be caught there. This function will return true if the SIGABRT signal was raised and caught successfully. Check the error if the caller of this function gets a false return value.

using abort_signal::{ abort }
using err

fn main() -> int {
  new+4096 mut error = err::make();
  if abort(&error) {
    // failed to raise an abort signal
    error.elog();
  }
}

abort_signal::set_abort_callback(callback)

Sets the abort signal (SIGABRT) callback handler function.

using abort_signal::{ abort, set_abort_callback }
using err

fn onabort() {
  // gracefully abort
}

fn main() -> int {
  new+4096 mut error = err::make();

  set_abort_callback(onabort);

  if abort(&error) {
    // failed to raise an abort signal
    error.elog();
  }

  return 0;
}

abort_signal::remove_abort_callback()

Removes the abort signal (SIGABRT) callback handler function.

abort_signal::remove_abort_callback();

License

MIT