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#!/usr/bin/python
import select, sys, os
def readpipe(file, tmout = 0.001):
"Read available data from pipe"
ret = ''
while not select.select([file.fileno()], [], [], tmout)[0]:
pass
while select.select([file.fileno()], [], [], tmout)[0]:
ret = ret + file.read(1)
return ret.split('\n')
def dpopen(cmd):
"Open a pipe for reuse, if already opened, return pipes"
global pipes
if 'pipes' not in globals().keys(): pipes = {}
if cmd not in pipes.keys():
pipes[cmd] = os.popen3(cmd, 't', 0)
return pipes[cmd]
### Unbuffered sys.stdout
sys.stdout = os.fdopen(1, 'w', 0)
### Main entrance
if __name__ == '__main__':
try:
stdin, stdout, stderr = dpopen('/usr/lpp/mmfs/bin/mmpmon -p -s')
stdin.write('reset\n')
readpipe(stdout)
while True:
stdin.write('io_s\n')
for line in readpipe(stdout):
print line
except KeyboardInterrupt, e:
print
# vim:ts=4:sw=4
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