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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Stderr built-in backend.
"""
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
__copyright__ = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>"
__license__ = "GPL version 2 or (at your option) any later version"
__maintainer__ = "Stefan Hajnoczi"
__email__ = "stefanha@linux.vnet.ibm.com"
from tracetool import out
PUBLIC = True
def generate_h_begin(events):
out('#include <stdio.h>',
'#include <sys/time.h>',
'#include <sys/types.h>',
'#include <unistd.h>',
'#include "trace/control.h"',
'')
def generate_h(event):
argnames = ", ".join(event.args.names())
if len(event.args) > 0:
argnames = ", " + argnames
out(' if (trace_event_get_state(%(event_id)s)) {',
' struct timeval _now;',
' gettimeofday(&_now, NULL);',
' fprintf(stderr, "%%d@%%zd.%%06zd:%(name)s " %(fmt)s "\\n",',
' getpid(),',
' (size_t)_now.tv_sec, (size_t)_now.tv_usec',
' %(argnames)s);',
' }',
event_id="TRACE_" + event.name.upper(),
name=event.name,
fmt=event.fmt.rstrip("\n"),
argnames=argnames)
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