misc

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/src/plugins/vmstat.py b/src/plugins/vmstat.py
new file mode 100644
index 0000000..7b522e6
--- /dev/null
+++ b/src/plugins/vmstat.py
@@ -0,0 +1,62 @@
+# -*- python -*-
+'''
+xpybar – xmobar replacement written in python
+Copyright © 2014  Mattias Andrée (maandree@member.fsf.org)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+'''
+
+from util import *
+
+
+class VMStat:
+    '''
+    Various virtual memory statistics
+    '''
+    
+    
+    def __init__(self):
+        '''
+        Constructor
+        '''
+        vmstat = None
+        with open('/proc/vmstat', 'rb') as file:
+            vmstat = file.read()
+        vmstat = vmstat.decode('utf-8', 'replace')
+        vmstat = map(lambda x : x.split(' '), filter(lambda x : not x == '', vmstat.split('\n')))
+        
+        self.__info = {}
+        for field, value in vmstat:
+            self.__info[field] = int(value)
+    
+    
+    def __contains__(self, key):
+        '''
+        Get whether or not a key is available
+        
+        @param   key:str  The key
+        @return  :bool    The availability
+        '''
+        return key in self.__info
+    
+    
+    def __getitem__(self, key):
+        '''
+        Lookup a field from '/proc/vmstat'
+        
+        @param   key:str  The field name
+        @return  :int     The value of the field
+        '''
+        return self.__info[key]
+