def multi_process_log(message, logname, cfgdir):
"""
<Purpose>
Logs the given message to a log. Does some trickery to make sure there
no more than 10 logs are ever there. If init hasn't been called, this
will perform the same actions.
<Arguments>
message - The message that should be written to the log.
logname - The name to be used for the logfile.
cfgdir - The directory that contains the vesseldict
<Exceptions>
Exception if there is a problem reading from cfgdir/nodeman.cfg or writing
to the circular log.
<Side Effects>
The given message might be written to the log.
<Returns>
True if the message is logged. False if the message isn't written because
there are too many logs.
"""
global servicevessel
global logfile
# If we've initialized, then log and continue...
if logfile != None and servicevessel != None:
log(message)
return True
if servicevessel == None:
servicevessel = get_servicevessel(cfgdir)
logcount = 0
servicefiles = os.listdir(cfgdir + '/' + servicevessel)
for servicefile in servicefiles:
# Count all the log files. There is always either a .old or .new for
# every log
if servicefile.endswith('.old'):
logcount = logcount + 1
elif servicefile.endswith('.new'):
if (servicefile[:-4] + ".old") not in servicefiles:
# If there is a new file but no old file, we will count it
logcount = logcount + 1
if logcount >= 10:
# If there are 10 or more logfiles already present, we don't want to create
# another. We'll ignore any race conditions with this because this should
# be a rare case.
return False
else:
# set up the circular logger, log the message, and return
logfile = loggingrepy_core.circular_logger_core(cfgdir + '/' +
servicevessel + '/' +
logname)
log(message)
return True
def multi_process_log(message, logname, cfgdir):
"""
<Purpose>
Logs the given message to a log. Does some trickery to make sure there
no more than 10 logs are ever there. If init hasn't been called, this
will perform the same actions.
<Arguments>
message - The message that should be written to the log.
logname - The name to be used for the logfile.
cfgdir - The directory that contains the vesseldict
<Exceptions>
Exception if there is a problem reading from cfgdir/nodeman.cfg or writing
to the circular log.
<Side Effects>
The given message might be written to the log.
<Returns>
True if the message is logged. False if the message isn't written because
there are too many logs.
"""
global servicevessel
global logfile
# If we've initialized, then log and continue...
if logfile != None and servicevessel != None:
log(message)
return True
if servicevessel == None:
servicevessel = get_servicevessel(cfgdir)
logcount = 0
servicefiles = os.listdir(cfgdir + '/' + servicevessel)
for servicefile in servicefiles:
# Count all the log files. There is always either a .old or .new for
# every log
if servicefile.endswith('.old'):
logcount = logcount + 1
elif servicefile.endswith('.new'):
if (servicefile[:-4] + ".old") not in servicefiles:
# If there is a new file but no old file, we will count it
logcount = logcount + 1
if logcount >= 10:
# If there are 10 or more logfiles already present, we don't want to create
# another. We'll ignore any race conditions with this because this should
# be a rare case.
return False
else:
# set up the circular logger, log the message, and return
logfile = loggingrepy_core.circular_logger_core(cfgdir + '/' + servicevessel + '/' + logname)
log(message)
return True
def init(logname, cfgdir='.', maxbuffersize=1024 * 1024):
"""
<Purpose>
Sets up the service logger to use the given logname, and the nodeman.cfg
is in the given directory.
<Arguments>
logname - The name of the log file, as well as the name of the process lock
to be used in the event of multi process locking
cfgdir - The directory containing nodeman.cfg, by default it is the current
directory
maxbuffersize - The size of the circular logging buffer.
<Exceptions>
Exception if there is a problem reading from cfgdir/nodeman.cfg
<Side Effects>
All future calls to log will log to the given logfile.
<Returns>
None
"""
global logfile
global servicevessel
servicevessel = get_servicevessel(cfgdir)
logfile = loggingrepy_core.circular_logger_core(servicevessel + '/' +
logname,
mbs=maxbuffersize)
def init(logname,cfgdir = '.', maxbuffersize=1024*1024):
"""
<Purpose>
Sets up the service logger to use the given logname, and the nodeman.cfg
is in the given directory.
<Arguments>
logname - The name of the log file, as well as the name of the process lock
to be used in the event of multi process locking
cfgdir - The directory containing nodeman.cfg, by default it is the current
directory
maxbuffersize - The size of the circular logging buffer.
<Exceptions>
Exception if there is a problem reading from cfgdir/nodeman.cfg
<Side Effects>
All future calls to log will log to the given logfile.
<Returns>
None
"""
global logfile
global servicevessel
servicevessel = get_servicevessel(cfgdir)
logfile = loggingrepy_core.circular_logger_core(servicevessel + '/' + logname, mbs = maxbuffersize)
