1explain_signalfd_or_die(3) Library Functions Manual explain_signalfd_or_die(3)
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NAME

6       explain_signalfd_or_die  - create signalable file descriptor and report
7       errors
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SYNOPSIS

10       #include <libexplain/signalfd.h>
11       int  explain_signalfd_or_die(int  fildes,  const  sigset_t  *mask,  int
12       flags);
13       int  explain_signalfd_on_error(int  fildes,  const  sigset_t *mask, int
14       flags);
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DESCRIPTION

17       The explain_signalfd_or_die function is used to  call  the  signalfd(2)
18       system  call.  On  failure  an  explanation  will be printed to stderr,
19       obtained from the explain_signalfd(3) function, and  then  the  process
20       terminates by calling exit(EXIT_FAILURE).
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22       The  explain_signalfd_on_error function is used to call the signalfd(2)
23       system call. On failure an  explanation  will  be  printed  to  stderr,
24       obtained  from  the  explain_signalfd(3) function, but still returns to
25       the caller.
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27       fildes  The fildes, exactly as to be passed to the  signalfd(2)  system
28               call.
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30       mask    The  mask,  exactly  as  to be passed to the signalfd(2) system
31               call.
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33       flags   The flags, exactly as to be passed to  the  signalfd(2)  system
34               call.
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RETURN VALUE

37       The  explain_signalfd_or_die function only returns on success, see sig‐
38       nalfd(2) for more information. On failure, prints  an  explanation  and
39       exits, it does not return.
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41       The  explain_signalfd_on_error function always returns the value return
42       by the wrapped signalfd(2) system call.
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EXAMPLE

45       The explain_signalfd_or_die function is intended to be used in a  fash‐
46       ion similar to the following example:
47              int result = explain_signalfd_or_die(fildes, mask, flags);
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SEE ALSO

50       signalfd(2)
51               create a file descriptor for accepting signals
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53       explain_signalfd(3)
54               explain signalfd(2) errors
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56       exit(2) terminate the calling process
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59       libexplain version 0.40
60       Copyright (C) 2009 Peter Miller
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64                                                    explain_signalfd_or_die(3)
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