36 lines
1.1 KiB
Markdown
36 lines
1.1 KiB
Markdown
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# Unix signal sending and handling for Racket
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A small example:
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```racket
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(require unix-signals)
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(capture-signal! 'SIGUSR1)
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(capture-signal! 'SIGUSR2)
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(let loop ()
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(define signum (read-signal))
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(printf "Received signal ~v (name ~v)\n" signum (lookup-signal-name signum))
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(loop))
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```
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Be warned: Don't try to capture `SIGSEGV`, `SIGBUS` or other signals
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that Racket already treats specially.
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## Licence
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Copyright (c) 2016 [Tony Garnock-Jones](https://github.com/tonyg)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program (see the files "lgpl.txt" and
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"gpl.txt"). If not, see <http://www.gnu.org/licenses/>.
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