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Best multi-threading solution?


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Since AutoIT is single threaded many people have created ways to multithread in AutoIT.

Searching the forums I found many ways to multithread.

So what is the best way to use multi-threading in an autoit script?

Is there anyway to run a function in another thread?

Or compile 2 or more scripts into a single multi-threading .exe?

Edited by DatMCEyeBall

"Just be fred, all we gotta do, just be fred."  -Vocaliod

"That is a Hadouken. A KAMEHAMEHA would have taken him 13 days and 54 episodes to form." - Roden Hoxha

@tabhooked

Clock made of cursors ♣ Desktop Widgets ♣ Water Simulation

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Firstly do you understand what "multi-threading" is? Or did your friend tell you that "mult-threading" is the shizzle!?

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Updated: 22/04/2018

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How I do it is...

1. Compile a second AutoIt file as an a3x file.

2. Use _RunAu3 (search the Forum)

3. Communicate with the file using WM_COPYDATA (see my signature.)

It's what I do for SciTE Jump, see my signature again.

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_AdapterConnections()_AlwaysRun()_AppMon()_AppMonEx()_ArrayFilter/_ArrayReduce_BinaryBin()_CheckMsgBox()_CmdLineRaw()_ContextMenu()_ConvertLHWebColor()/_ConvertSHWebColor()_DesktopDimensions()_DisplayPassword()_DotNet_Load()/_DotNet_Unload()_Fibonacci()_FileCompare()_FileCompareContents()_FileNameByHandle()_FilePrefix/SRE()_FindInFile()_GetBackgroundColor()/_SetBackgroundColor()_GetConrolID()_GetCtrlClass()_GetDirectoryFormat()_GetDriveMediaType()_GetFilename()/_GetFilenameExt()_GetHardwareID()_GetIP()_GetIP_Country()_GetOSLanguage()_GetSavedSource()_GetStringSize()_GetSystemPaths()_GetURLImage()_GIFImage()_GoogleWeather()_GUICtrlCreateGroup()_GUICtrlListBox_CreateArray()_GUICtrlListView_CreateArray()_GUICtrlListView_SaveCSV()_GUICtrlListView_SaveHTML()_GUICtrlListView_SaveTxt()_GUICtrlListView_SaveXML()_GUICtrlMenu_Recent()_GUICtrlMenu_SetItemImage()_GUICtrlTreeView_CreateArray()_GUIDisable()_GUIImageList_SetIconFromHandle()_GUIRegisterMsg()_GUISetIcon()_Icon_Clear()/_Icon_Set()_IdleTime()_InetGet()_InetGetGUI()_InetGetProgress()_IPDetails()_IsFileOlder()_IsGUID()_IsHex()_IsPalindrome()_IsRegKey()_IsStringRegExp()_IsSystemDrive()_IsUPX()_IsValidType()_IsWebColor()_Language()_Log()_MicrosoftInternetConnectivity()_MSDNDataType()_PathFull/GetRelative/Split()_PathSplitEx()_PrintFromArray()_ProgressSetMarquee()_ReDim()_RockPaperScissors()/_RockPaperScissorsLizardSpock()_ScrollingCredits_SelfDelete()_SelfRename()_SelfUpdate()_SendTo()_ShellAll()_ShellFile()_ShellFolder()_SingletonHWID()_SingletonPID()_Startup()_StringCompact()_StringIsValid()_StringRegExpMetaCharacters()_StringReplaceWholeWord()_StringStripChars()_Temperature()_TrialPeriod()_UKToUSDate()/_USToUKDate()_WinAPI_Create_CTL_CODE()_WinAPI_CreateGUID()_WMIDateStringToDate()/_DateToWMIDateString()Au3 script parsingAutoIt SearchAutoIt3 PortableAutoIt3WrapperToPragmaAutoItWinGetTitle()/AutoItWinSetTitle()CodingDirToHTML5FileInstallrFileReadLastChars()GeoIP databaseGUI - Only Close ButtonGUI ExamplesGUICtrlDeleteImage()GUICtrlGetBkColor()GUICtrlGetStyle()GUIEventsGUIGetBkColor()Int_Parse() & Int_TryParse()IsISBN()LockFile()Mapping CtrlIDsOOP in AutoItParseHeadersToSciTE()PasswordValidPasteBinPosts Per DayPreExpandProtect GlobalsQueue()Resource UpdateResourcesExSciTE JumpSettings INISHELLHOOKShunting-YardSignature CreatorStack()Stopwatch()StringAddLF()/StringStripLF()StringEOLToCRLF()VSCROLLWM_COPYDATAMore Examples...

Updated: 22/04/2018

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In SMF I work with a single command-line switched executable / script. On first start the main process is called, which than runs the program again with certain switches to create worker-instances of itself. Communication is done with a combo of WM_COPYDATA, switches in the SQLite Database and shared memory buffers... additionally I remember seeing examples using mailslots or shared mapped files. So in my opinion there is no "best" solution, all have their pros and cons. Using WM_COPYDATA you can interrupt the current function in the target script, using SQLite gives you persistent memory and using shared memory buffers you can transfer huge amounts of data very fast. Choose the type of inter-script communication which best fits the task at hand.

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The script(s) I'm working on scan your whole harddrive and save the list into a .txt file, this file gets split into memory when you search for something it then continues to look for matches using StringRegExp() and lists them in a listveiw control.

It took about ~5-6 minutes to "index" a 2TB hard drive(It has about 500GB free) and another ~1-2 minutes to search, during this time it only used 50% CPU.

So, if I have 2 threads scanning with a shared index buffer and shared GUI controls, would SQLite be the best solution?

(I seem to use solution in the wrong places, I blame VS Express!)

"Just be fred, all we gotta do, just be fred."  -Vocaliod

"That is a Hadouken. A KAMEHAMEHA would have taken him 13 days and 54 episodes to form." - Roden Hoxha

@tabhooked

Clock made of cursors ♣ Desktop Widgets ♣ Water Simulation

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  • 4 years later...
On 6/23/2013 at 12:09 AM, KaFu said:

In SMF I work with a single command-line switched executable / script. On first start the main process is called, which than runs the program again with certain switches to create worker-instances of itself. Communication is done with a combo of WM_COPYDATA, switches in the SQLite Database and shared memory buffers... additionally I remember seeing examples using mailslots or shared mapped files. So in my opinion there is no "best" solution, all have their pros and cons. Using WM_COPYDATA you can interrupt the current function in the target script, using SQLite gives you persistent memory and using shared memory buffers you can transfer huge amounts of data very fast. Choose the type of inter-script communication which best fits the task at hand.

What a beautiful idea.

Thank you KaFu

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I would be surprised if scanning harddrive multi threaded is quicker then single thread as I make the assumption (never tested it) your harddrive will be the limiting factor.

Maybe test it with findfirstfile/findnextfile and compare for NTFS with FindFirstVolumeMountPoint/FindNextVolumeMountPoint

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