luci-app-nlbw: fix sporadic premature EOF when rendering JSON data

[project/luci.git] / applications / luci-app-nlbwmon / luasrc / controller / nlbw.lua

diff --git a/applications/luci-app-nlbwmon/luasrc/controller/nlbw.lua b/applications/luci-app-nlbwmon/luasrc/controller/nlbw.lua
index bb56bc6..a8c5779 100644 (file)
--- a/applications/luci-app-nlbwmon/luasrc/controller/nlbw.lua
+++ b/applications/luci-app-nlbwmon/luasrc/controller/nlbw.lua
@@ -28,16 +28,17 @@ local function exec(cmd, args, writer)
 
                while true do
                        local buffer = fdi:read(2048)
 
                while true do
                        local buffer = fdi:read(2048)

-                       local wpid, stat, code = nixio.waitpid(pid, "nohang")

 
 

-                       if writer and buffer and #buffer > 0 then
-                               writer(buffer)
+                       if not buffer or #buffer == 0 then
+                               break

                        end
 
                        end
 

-                       if wpid and stat == "exited" then
-                               break
+                       if writer then
+                               writer(buffer)

                        end
                end
                        end
                end

+
+               nixio.waitpid(pid)

        elseif pid == 0 then
                nixio.dup(fdo, nixio.stdout)
                fdi:close()
        elseif pid == 0 then
                nixio.dup(fdo, nixio.stdout)
                fdi:close()