Man Linux: Main Page and Category List

NAME

       explain_adjtime_or_die - smoothly tune kernel clock and report errors

SYNOPSIS

       #include <libexplain/adjtime.h>
       void explain_adjtime_or_die(const struct timeval *delta, struct timeval
       *olddelta);
       int  explain_adjtime_on_error(const  struct  timeval   *delta,   struct
       timeval *olddelta);

DESCRIPTION

       The  explain_adjtime_or_die  function  is  used  to call the adjtime(2)
       system call. On failure an  explanation  will  be  printed  to  stderr,
       obtained  from  the  explain_adjtime(3)  function, and then the process
       terminates by calling exit(EXIT_FAILURE).

       The explain_adjtime_on_error function is used to  call  the  adjtime(2)
       system  call.  On  failure  an  explanation  will be printed to stderr,
       obtained from the explain_adjtime(3) function, but still returns to the
       caller.

       delta   The  delta,  exactly  as  to be passed to the adjtime(2) system
               call.

       olddelta
               The olddelta, exactly as to be passed to the adjtime(2)  system
               call.

RETURN VALUE

       The  explain_adjtime_or_die  function  only  returns  on  success,  see
       adjtime(2) for more information. On failure, prints an explanation  and
       exits, it does not return.

       The  explain_adjtime_on_error  function always returns the value return
       by the wrapped adjtime(2) system call.

EXAMPLE

       The explain_adjtime_or_die function is intended to be used in a fashion
       similar to the following example:
              explain_adjtime_or_die(delta, olddelta);

SEE ALSO

       adjtime(2)
               smoothly tune kernel clock

       explain_adjtime(3)
               explain adjtime(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 0.19
       Copyright (C) 2009 Peter Miller

                                                     explain_adjtime_or_die(3)