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usr/share/systemtap/tapset/dyninst/_[ Not.Writable ]

File://usr/share/systemtap/tapset/dyninst/timestamp_gtod.stp

// timestamp tapset -- gettimeofday variants
// Copyright (C) 2012 Red Hat, Inc.
//
// This file is part of systemtap, and is free software.  You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.

// NB: functionally equivalent to linux/timestamp_gtod.stp

%{
#include <sys/time.h>
%}

function gettimeofday_ns:long () {
  return gettimeofday_us() * 1000; // XXX available resolution isn't this high!
}

function gettimeofday_us:long () %{ /* pure */ /* unprivileged */
  struct timeval tv;
  if (gettimeofday(&tv, NULL) == 0)
    STAP_RETVALUE = (uint64_t)tv.tv_sec * 1000000 + tv.tv_usec;
%}

function gettimeofday_ms:long () {
  return gettimeofday_us() / 1000;
}

function gettimeofday_s:long () {
  return gettimeofday_us() / 1000000;
}

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Regist : 09-12-2024	Expired : 01-12-2027