CODEWITHSUNDEEP
signalsd
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Reputation: 4020

How can I handle or detect a system signal in D?

D's (rather sparse) official documentation doesn't have anything about handling system signals on *nx or Windows.

The system module only has Endian and OS, syserror is deprecated / only for Windows errortext, and signals is about message-passing, not system signals.

Is there a way (in pure D) to install a signal handler, to capture and allow me to react to certain signals at runtime, or, at least a way to detect that a signal was recieved and an exception I can catch?

i.e, in Python, a simple example is:

import signal
signal.signal(signal.SIGSEGV, myFunctionToHandleSEGV)
# ...

Upvotes: 3

Views: 165

Answers (1)

Adam D. Ruppe
Adam D. Ruppe

Reputation: 25595

It is the same as in C, just with an import instead of an include. Find a C example that looks interesting to you, then change #include<signal.h> to import core.stdc.signal; if you are using just the standard C signal function, or import core.sys.posix.signal; if you are using Posix functions like sigaction, then remember to mark your callback (if you use one) with extern(C) (and in recent versions of D, @nogc nothrow too), and then the rest of the code should compile as D the same way as in C.

Upvotes: 5

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