def info(self,*args):
cmdline = '%s info %s'%(self.rrd_bin,string_quote_join(args))
outstr = subprocessSupport.iexe_cmd(cmdline).split('\n')
outarr = {}
for line in outstr:
linearr = line.split('=')
outarr[linearr[0]] = linearr[1]
return outarr
def dump(self,*args):
"""
Run rrd_tool dump
Input is usually just the file name.
Output is a list of lines, as returned from rrdtool.
"""
cmdline = '%s dump %s' % (self.rrd_bin, string_quote_join(args))
outstr = subprocessSupport.iexe_cmd(cmdline).split('\n')
return outstr
def iexe_cmd(cmd, stdin_data=None, child_env=None):
"""
Fork a process and execute cmd - rewritten to use select to avoid filling
up stderr and stdout queues.
@type cmd: string
@param cmd: Sting containing the entire command including all arguments
@type stdin_data: string
@param stdin_data: Data that will be fed to the command via stdin
@type env: dict
@param env: Environment to be set before execution
"""
stdoutdata = ""
try:
stdoutdata = subprocessSupport.iexe_cmd(cmd, stdin_data=stdin_data,
child_env=child_env)
except Exception, ex:
raise ExeError, "Unexpected Error running '%s'. Details: %s" % (cmd, ex)
def graph(self,*args):
cmdline = '%s graph %s'%(self.rrd_bin, string_quote_join(args))
outstr = subprocessSupport.iexe_cmd(cmdline)
return
def __init__(self):
self.rrd_bin = (subprocessSupport.iexe_cmd("which rrdtool").split('\n')[0]).strip()