lib/freyr/process_info.rb in freyr-0.3.4 vs lib/freyr/process_info.rb in freyr-0.3.5

@@ -1,5 +1,33 @@
 module Freyr
   class ProcessInfo
-    attr_accessor :user, :pid, :cpu, :mem, :vsz, :rss, :tt, :stat, :started, :time, :cmd
+    attr_reader :pid, :rss, :vsz, :pcpu, :pmem, :ruser, :command
+    def initialize pid
+      @pid = pid
+    end
+    
+    def ps
+      return if !pid || pid.to_s.empty?
+      info = `ps p #{pid} -o pid,rss,vsz,pmem,pcpu,ruser,command`
+      match = info.match(/#{pid}\s+(\d+)\s+(\d+)\s+([\d\.]+)\s+([\d\.]+)\s+(\w+)\s+(.+)/)
+      return unless match
+      @rss = match[1].to_i
+      @vsz = match[2].to_i
+      @pmem = match[3].to_f
+      @pcpu = match[4].to_f
+      @ruser = match[5]
+      @command = match[6]
+      info
+    end
+    
+    def mem_in_mb
+      @rss/1024
+    end
+    
+    class << self
+      def [] *args
+        n = new(*args)
+        n.ps ? n : nil
+      end
+    end
   end
-end
\ No newline at end of file
+end