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ualarm (3)

ualarm (3) ( Solaris man: Библиотечные вызовы )

>> ualarm (3) ( FreeBSD man: Библиотечные вызовы )

ualarm (3) ( Русские man: Библиотечные вызовы )

ualarm (3) ( Linux man: Библиотечные вызовы )

ualarm (3) ( POSIX man: Библиотечные вызовы )

BSD mandoc

NAME



ualarm

 - schedule signal after specified time

LIBRARY

Lb libc

SYNOPSIS

#include <unistd.h>
useconds_t ualarm (useconds_t microseconds useconds_t interval);

DESCRIPTION

Bf -symbolic This is a simplified interface to setitimer(2). Ef

The ualarm ();
function waits a count of Fa microseconds before asserting the terminating signal SIGALRM System activity or time used in processing the call may cause a slight delay.

If the Fa interval argument is non-zero, the SIGALRM signal will be sent to the process every Fa interval microseconds after the timer expires (e.g. after Fa microseconds number of microseconds have passed).

Due to setitimer(2) restriction the maximum number of Fa microseconds and Fa interval is limited to 100000000000000 (in case this value fits in the unsigned integer).