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// File switching tapset
// Copyright (C) 2015 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.

/**
 * sfunction switch_file - switch to the next output file
 *
 * Description: This function sends a signal to the stapio process,
 * commanding it to rotate to the next output file when output is
 * sent to file(s).
 */
function switch_file() {
  if (stp_pid() != 0) {
    system(sprintf("kill -USR2 %d", stp_pid()))
  }
}