Added process control page

[project/luci.git] / libs / sys / luasrc / sys.lua

diff --git a/libs/sys/luasrc/sys.lua b/libs/sys/luasrc/sys.lua
index 7357d4c..6b6ea70 100644 (file)
--- a/libs/sys/luasrc/sys.lua
+++ b/libs/sys/luasrc/sys.lua
@@ -298,6 +298,46 @@ process = {}
 -- @return     Number containing the current pid
 process.info = posix.getpid
 
+--- Retrieve information about currently running processes.
+-- @return     Table containing process information
+function process.list()
+       local data = {}
+       local k
+       local ps = luci.util.execi("top -bn1")
+       
+       if not ps then
+               return
+       end
+       
+       while true do
+               local line = ps()
+               if not line then
+                       return
+               end
+               
+               k = luci.util.split(luci.util.trim(line), "%s+", nil, true)
+               if k[1] == "PID" then
+                       break
+               end
+       end
+       
+       for line in ps do
+               local row = {}
+               
+               line = luci.util.trim(line)
+               for i, value in ipairs(luci.util.split(line, "%s+", #k-1, true)) do
+                       row[k[i]] = value
+               end
+               
+               local pid = tonumber(row[k[1]])
+               if pid then
+                       data[pid] = row
+               end
+       end
+       
+       return data
+end
+
 --- Set the gid of a process identified by given pid.
 -- @param pid  Number containing the process id
 -- @param gid  Number containing the Unix group id
@@ -318,6 +358,13 @@ function process.setuser(pid, uid)
        return posix.setpid("u", pid, uid)
 end
 
+--- Send a signal to a process identified by given pid.
+-- @param pid  Number containing the process id
+-- @param sig  Signal to send (default: 15 [SIGTERM])
+-- @return             Boolean indicating successful operation
+-- @return             Number containing the error code if failed
+process.signal = posix.kill
+
 
 --- LuCI system utilities / user related functions.
 -- @class      module