TIMERFD(7) Standards, Environments, and Macros TIMERFD(7)

NAME

timerfd - Linux-compatible timer notification facility

SYNOPSIS

#include <sys/timerfd.h>

DESCRIPTION

timerfd is a Linux-borne facility for creating POSIX timers and
receiving their subsequent events via a file descriptor. The facility
itself is arguably unnecessary: portable code can either use the
timeout value present in poll(2) / port_get(3C) or -- if this is deemed
of unacceptably poor resolution -- create a POSIX timer via
timer_create(3C) and use the resulting signal to induce an EINTR to
polling threads. (For code that need not be portable, the SIGEV_PORT
signal notification allows for explicit, event-oriented timer
notification to be sent to a specified port; see signal.h(3HEAD) for
details.) This facility therefore exists only to accommodate Linux-
borne applications and binaries; it is compatible with its Linux
antecedent in both binary interface and in semantics.

SEE ALSO

timerfd_create(3C), timerfd_gettime(3C), timerfd_settime(3C)

illumos February 23, 2015 illumos