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# -*- coding: utf-8 -*-
# Description: logging for netdata python.d modules
import sys
from time import time, strftime
DEBUG_FLAG = False
PROGRAM = ""
LOG_COUNTER = 2
LOG_INTERVAL = 5
NEXT_CHECK = 0
WRITE = sys.stderr.write
FLUSH = sys.stderr.flush
def log_msg(msg_type, *args):
"""
Print message on stderr.
:param msg_type: str
"""
global LOG_COUNTER
if not DEBUG_FLAG:
LOG_COUNTER -= 1
now = time()
if LOG_COUNTER >= 0:
timestamp = strftime('%y-%m-%d %X')
msg = "%s: %s %s: %s" % (timestamp, PROGRAM, str(msg_type), " ".join(args))
WRITE(msg + "\n")
FLUSH()
global NEXT_CHECK
if NEXT_CHECK <= now:
NEXT_CHECK = now - (now % LOG_INTERVAL) + LOG_INTERVAL
if LOG_COUNTER < 0:
timestamp = strftime('%y-%m-%d %X')
msg = "%s: Prevented %s log messages from displaying" % (timestamp, str(0 - LOG_COUNTER))
WRITE(msg + "\n")
FLUSH()
def debug(*args):
"""
Print debug message on stderr.
"""
if not DEBUG_FLAG:
return
log_msg("DEBUG", *args)
def error(*args):
"""
Print message on stderr.
"""
log_msg("ERROR", *args)
def info(*args):
"""
Print message on stderr.
"""
log_msg("INFO", *args)
def fatal(*args):
"""
Print message on stderr and exit.
"""
log_msg("FATAL", *args)
# using sys.stdout causes IOError: Broken Pipe
print('DISABLE')
# sys.stdout.write('DISABLE\n')
sys.exit(1)
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