feat add spdlog

third_party/prometheus/3rdparty/civetweb/test/websocket.lua

@@ -0,0 +1,118 @@
+timerID = "timeout"
+--timerID = "interval"
+
+function trace(text)
+    local f = io.open("websocket.trace", "a")
+    f:write(os.date() .. " - " .. text .. "\n")
+    f:close()
+end
+
+function iswebsocket()
+  return mg.lua_type == "websocket"
+  --return pcall(function()
+  --  if (string.upper(mg.request_info.http_headers.Upgrade)~="WEBSOCKET") then error("") end
+  --end)
+end
+
+trace("called with Lua type " .. tostring(mg.lua_type))
+
+if not iswebsocket() then
+  trace("no websocket")
+  mg.write("HTTP/1.0 403 Forbidden\r\n")
+  mg.write("Connection: close\r\n")
+  mg.write("\r\n")
+  mg.write("forbidden")
+  return
+end
+
+
+-- Serialize table to string
+function ser(val)
+  local t
+  if type(val) == "table" then
+    for k,v in pairs(val) do
+      if t then
+        t = t .. ", " .. ser(k) .. "=" .. ser(v)
+      else
+        t = "{" .. ser(k) .. "=" .. ser(v)
+      end
+    end
+    t = t .. "}"
+  else
+    t = tostring(val)
+  end
+  return t
+end
+
+-- table of all active connection
+allConnections = {}
+
+-- function to get a client identification string
+function who(tab)
+  local ri = allConnections[tab.client].request_info
+  return ri.remote_addr .. ":" .. ri.remote_port
+end
+
+-- Callback to accept or reject a connection
+function open(tab)
+  allConnections[tab.client] = tab
+  trace("open[" .. who(tab) .. "]: " .. ser(tab))
+  return true -- return true to accept the connection
+end
+
+-- Callback for "Websocket ready"
+function ready(tab)
+  trace("ready[" .. who(tab) .. "]: " .. ser(tab))
+  mg.write(tab.client, "text", "Websocket ready")
+  mg.write(tab.client, 1, "-->h 180");
+  mg.write(tab.client, "-->m 180");
+  senddata()
+  if timerID == "timeout" then
+    mg.set_timeout("timer()", 1)
+  elseif timerID == "interval" then
+    mg.set_interval("timer()", 1)
+  end
+  return true -- return true to keep the connection open
+end
+
+-- Callback for "Websocket received data"
+function data(tab)
+    trace("data[" .. who(tab) .. "]: " .. ser(tab))
+    senddata()
+    return true -- return true to keep the connection open
+end
+
+-- Callback for "Websocket is closing"
+function close(tab)
+    trace("close[" .. who(tab) .. "]: " .. ser(tab))
+    mg.write("text", "end")
+    allConnections[tab.client] = nil
+end
+
+function senddata()
+    local date = os.date('*t');
+    local hand = (date.hour%12)*60+date.min;
+
+    mg.write("text", string.format("%u:%02u:%02u", date.hour, date.min, date.sec));
+
+    if (hand ~= lasthand) then
+        mg.write(1, string.format("-->h %f", hand*360/(12*60)));
+        mg.write(   string.format("-->m %f", date.min*360/60));
+        lasthand = hand;
+    end
+
+    if bits and content then
+        data(bits, content)
+    end
+end
+
+function timer()
+    trace("timer")
+    senddata()
+    if timerID == "timeout" then
+        mg.set_timeout("timer()", 1)
+    else
+        return true -- return true to keep an interval timer running
+    end
+end
+