diff options
Diffstat (limited to 'love2dToAPK/tools/tools/zbstudio-old-win/src/editor/singleinstance.lua')
| -rw-r--r-- | love2dToAPK/tools/tools/zbstudio-old-win/src/editor/singleinstance.lua | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/love2dToAPK/tools/tools/zbstudio-old-win/src/editor/singleinstance.lua b/love2dToAPK/tools/tools/zbstudio-old-win/src/editor/singleinstance.lua new file mode 100644 index 0000000..450cb6f --- /dev/null +++ b/love2dToAPK/tools/tools/zbstudio-old-win/src/editor/singleinstance.lua @@ -0,0 +1,98 @@ +-- Copyright 2011-15 Paul Kulchenko, ZeroBrane LLC +-- authors: Luxinia Dev (Eike Decker & Christoph Kubisch) +--------------------------------------------------------- + +local ide = ide +--[[ single instance +open an UDP port - if it fails it is either because +- IDE is running already +- an application is already blocking that port +if it fails it tries to contact the running application +- if it confirms being the IDE we let that instance open it, finish our application +- otherwise we throw an error message on the user and start like normal + +probably a pitfal: an instance is running but is not visible + (because it was finished though the UDP thing still runs) +]] + +if not ide.config.singleinstance then return end + +local socket = require "socket" +local port = ide.config.singleinstanceport +local delay = tonumber(ide.config.singleinstance) or 1000 -- in ms +local svr = socket.udp() +local success = svr:setsockname("127.0.0.1",port) -- bind on local host +local protocol = {client = {}, server = {}} + +protocol.client.greeting = "Is this you, my IDE? It's me, a new instance." +protocol.server.greeting = "Yes it is me, running as: %s" +protocol.client.requestloading = "Could you please load this file for me: %s" +protocol.server.answerok = "Sure. You may now leave." + +if success then -- ok, server was started, we are solo + --TODO: if multiple files are to be opened, each file is handled one by one - we could create a single string instead... + ide.idletimer = wx.wxTimer(wx.wxGetApp()) + ide.idletimer:Start(delay,false) + svr:settimeout(0) -- don't block + wx.wxGetApp():Connect(wx.wxEVT_TIMER, function() + if ide.exitingProgram then -- if exiting, terminate the timer loop + wx.wxGetApp():Disconnect(wx.wxEVT_TIMER) + return + end + + local msg, ip, port = svr:receivefrom() + if msg then + if msg == protocol.client.greeting then + svr:sendto(protocol.server.greeting:format(wx.wxGetUserName()),ip,port) + elseif msg:match(protocol.client.requestloading:gsub("%%s",".+$")) then -- ok we need to open something + svr:sendto(protocol.server.answerok,ip,port) + local filename = msg:match(protocol.client.requestloading:gsub("%%s","(.+)$")) + if filename then + RequestAttention() + if wx.wxDirExists(filename) then + ProjectUpdateProjectDir(filename) + elseif not ActivateFile(filename) then + DisplayOutputLn(TR("Can't open file '%s': %s"):format(filename, wx.wxSysErrorMsg())) + end + end + end + end + end) +else -- something different is running on our port + local cln = socket.udp() + cln:setpeername("127.0.0.1",port) + cln:settimeout(2) + cln:send(protocol.client.greeting) + + local msg = cln:receive() + local arg = ide.arg + if msg and msg:match(protocol.server.greeting:gsub("%%s",".+$")) then + local username = msg:match(protocol.server.greeting:gsub("%%s","(.+)$")) + if username ~= wx.wxGetUserName() then + print(("Another instance is running under user '%s' and can't be activated. This instance will continue running, which may cause interference with the debugger."):format(username)) + else + local failed = false + for index = 2, #arg do + local fileName = arg[index] + if fileName ~= "--" + -- on OSX, the command line includes -psn parameter, so ignore it + and (ide.osname ~= 'Macintosh' or not fileName:find("^-psn")) then + cln:send(protocol.client.requestloading:format(fileName)) + + local msg, err = cln:receive() + if msg ~= protocol.server.answerok then + failed = true + print(err,msg) + end + end + end + if failed then + print("The server instance failed to open the files, this instance will continue running.") + else -- done + os.exit(0) + end + end + else + print("The single instance communication has failed; there may be another instance running, which may cause interference with the debugger.") + end +end |