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# Copyright 2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
import os
import platform
import subprocess
from portage import _unicode_decode
def get_vm_info():
vm_info = {}
if platform.system() == 'Linux':
try:
proc = subprocess.Popen(["free"],
stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
except OSError:
pass
else:
output = _unicode_decode(proc.communicate()[0])
if proc.wait() == os.EX_OK:
for line in output.splitlines():
line = line.split()
if len(line) < 2:
continue
if line[0] == "Mem:":
try:
vm_info["ram.total"] = int(line[1]) * 1024
except ValueError:
pass
if len(line) > 3:
try:
vm_info["ram.free"] = int(line[3]) * 1024
except ValueError:
pass
elif line[0] == "Swap:":
try:
vm_info["swap.total"] = int(line[1]) * 1024
except ValueError:
pass
if len(line) > 3:
try:
vm_info["swap.free"] = int(line[3]) * 1024
except ValueError:
pass
else:
try:
proc = subprocess.Popen(["sysctl", "-a"],
stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
except OSError:
pass
else:
output = _unicode_decode(proc.communicate()[0])
if proc.wait() == os.EX_OK:
for line in output.splitlines():
line = line.split(":", 1)
if len(line) != 2:
continue
line[1] = line[1].strip()
if line[0] == "hw.physmem":
try:
vm_info["ram.total"] = int(line[1])
except ValueError:
pass
elif line[0] == "vm.swap_total":
try:
vm_info["swap.total"] = int(line[1])
except ValueError:
pass
elif line[0] == "Free Memory Pages":
if line[1][-1] == "K":
try:
vm_info["ram.free"] = int(line[1][:-1]) * 1024
except ValueError:
pass
return vm_info
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