SIMPLE SOLUTIONS

EXPLAIN_EVENTFD_OR_DIE - reference manual online

Create event notify file descriptor and report errors.

Chapter
explain_eventfd_or_die(3)            Library Functions Manual           explain_eventfd_or_die(3)

NAME explain_eventfd_or_die - create event notify file descriptor and report errors
SYNOPSIS #include <libexplain/eventfd.h> int explain_eventfd_or_die(unsigned int initval, int flags); int explain_eventfd_on_error(unsigned int initval, int flags);
DESCRIPTION The explain_eventfd_or_die function is used to call the eventfd(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_eventfd(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_eventfd_on_error function is used to call the eventfd(2) system call. On fail‐ ure an explanation will be printed to stderr, obtained from the explain_eventfd(3) func‐ tion, but still returns to the caller. initval The initval, exactly as to be passed to the eventfd(2) system call. flags The flags, exactly as to be passed to the eventfd(2) system call.
RETURN VALUE The explain_eventfd_or_die function only returns on success, see eventfd(2) for more information. On failure, prints an explanation and exits, it does not return. The explain_eventfd_on_error function always returns the value return by the wrapped eventfd(2) system call.
EXAMPLE The explain_eventfd_or_die function is intended to be used in a fashion similar to the following example: int result = explain_eventfd_or_die(initval, flags);
SEE ALSO eventfd(2) create a file descriptor for event notification explain_eventfd(3) explain eventfd(2) errors exit(2) terminate the calling process
explain_eventfd_or_die(3)
This manual Reference Other manuals
explain_eventfd_or_die(3) referred by explain(3) | explain_eventfd(3)
refer to eventfd(2) | _exit(2) | explain_eventfd(3)