#!/bin/python

import os, sys, time

#lines = open(sys.argv[1], 'rb').readlines()
#
## logfile format:
## <time(ms)> <key>: <value>
## example:
## 16434 read cache: 17
#
#keys = []
#fields = {}
#maximum = {}
#out = open('disk_buffer_log.dat', 'w+')
#
#last_t = 0
#for l in lines:
#	try:
#		t = int(l[0:l.find(' ')])
#		c = l[l.find(' ')+1:l.find(':')]
#		n = int(l[l.find(':')+1:-1])
#	except:
#		print l
#		continue
#
#	if last_t != t:
#		print >>out, '%d\t' % last_t,
#		for i in keys:
#			print >>out, '%d\t' % maximum[i],
#		print >>out, '\n',
#
#	if not c in keys:
#		keys.append(c)
#		fields[c] = 0
#		maximum[c] = 0
#
#	fields[c] = n
#	if n > maximum[c]: maximum[c] = n
#
#	if last_t != t:
#		last_t = t
#		maximum = fields
#
#for i in keys:
#	print i,
#print
#	
#out.close()

keys = ['check piece', 'send buffer', 'read cache', 'receive buffer', 'hash temp']

out = open('disk_buffer.gnuplot', 'wb')
print >>out, "set term png size 1200,700"
print >>out, 'set output "disk_buffer.png"'
print >>out, 'set xrange [0:*]'
print >>out, 'set xlabel "time (ms)"'
print >>out, 'set ylabel "buffers"'
print >>out, "set style data lines"
print >>out, "set key box"
print >>out, 'plot',
count = 1 + len(keys)
keys.reverse()
for k in keys:
	expr = "$%d" % count
	for i in xrange(2, count): expr += "+$%d" % i
	print >>out, ' "disk_buffer_log.dat" using 1:(%s) title "%s" with filledcurves x1,' % (expr, k),
	count -= 1
print >>out, 'x=0'
out.close()

os.system('gnuplot disk_buffer.gnuplot')