lib/python/Components/Harddisk.py

   1 import os
   2
   3 def tryOpen(filename):
   4         try:
   5                 procFile = open(filename)
   6         except IOError:
   7                 return ""
   8         return procFile
   9
  10 class Harddisk:
  11         def __init__(self, index):
  12                 self.index = index
  13
  14                 host = self.index / 4
  15                 bus = (self.index & 2)
  16                 target = (self.index & 1)
  17
  18                 #perhaps this is easier?
  19                 self.prochdx = "/proc/ide/hd" + ("a","b","c","d","e","f","g","h")[index] + "/"
  20                 self.devidex = "/dev/ide/host" + str(host) + "/bus" + str(bus) + "/target" + str(target) + "/lun0/"
  21
  22         def capacity(self):
  23                 procfile = tryOpen(self.prochdx + "capacity")
  24
  25                 if procfile == "":
  26                         return -1
  27
  28                 line = procfile.readline()
  29                 procfile.close()
  30
  31                 try:
  32                         cap = int(line)
  33                 except:
  34                         return -1
  35
  36                 return cap
  37
  38         def model(self):
  39                 procfile = tryOpen(self.prochdx + "model")
  40
  41                 if procfile == "":
  42                         return ""
  43
  44                 line = procfile.readline()
  45                 procfile.close()
  46
  47                 return line
  48
  49         def free(self):
  50                 procfile = tryOpen("/proc/mounts")
  51
  52                 if procfile == "":
  53                         return -1
  54
  55                 free = -1
  56                 while 1:
  57                         line = procfile.readline()
  58                         if line == "":
  59                                 break
  60                         if line.startswith(self.devidex):
  61                                 parts = line.strip().split(" ")
  62                                 try:
  63                                         stat = os.statvfs(parts[1])
  64                                 except OSError:
  65                                         continue
  66                                 free = stat.f_bfree/1000 * stat.f_bsize/1000
  67                                 break
  68                 procfile.close()
  69                 return free