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/CURL/CURLS preemptive threaded download
Required plugins for this example: MBS CURL Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /CURL/CURLS preemptive threaded download
This example is the version from Sat, 1st Jan 2016.
Project "CURLS preemptive threaded download.xojo_binary_project"
FileTypes
Filetype text
End FileTypes
Class Window1 Inherits Window
Control EditField1 Inherits TextArea
ControlInstance EditField1 Inherits TextArea
End Control
Control List Inherits ListBox
ControlInstance List Inherits ListBox
End Control
Control StartButton Inherits PushButton
ControlInstance StartButton Inherits PushButton
EventHandler Sub Action()
ProgressWheel1.Visible = True
Run
End EventHandler
End Control
Control StaticText1 Inherits Label
ControlInstance StaticText1 Inherits Label
End Control
Control StopButton Inherits PushButton
ControlInstance StopButton Inherits PushButton
EventHandler Sub Action()
ProgressWheel1.Visible = false
for each t as DownloadThread in Threads
t.Cancel
next
End EventHandler
End Control
Control ProgressWheel1 Inherits ProgressWheel
ControlInstance ProgressWheel1 Inherits ProgressWheel
End Control
Control Timer1 Inherits Timer
ControlInstance Timer1 Inherits Timer
EventHandler Sub Action()
for each t as DownloadThread in threads
if t.DoneMessageNew then
List.cell(t.listindex, 0) = t.DoneMessage
t.DoneMessageNew = false
elseif t.d <> nil then
dim p as Double = t.d.ProgressPercent
List.cell(t.listindex, 0) = "Download "+Format(p/100.0, "0%")
end if
next
End EventHandler
End Control
Control Label1 Inherits Label
ControlInstance Label1 Inherits Label
End Control
EventHandler Sub Close()
// if something is still running, cancel it
for each t as DownloadThread in threads
t.cancel
next
System.DebugLog CurrentMethodName+" Waiting for threads to finish..."
// now wait for all threads to end
while true
app.YieldToNextThread
for each t as DownloadThread in threads
'System.DebugLog "Thread: "+str(t.ThreadID)+" has state: "+str(t.state)
if t.State <> thread.NotRunning then
// wait longer
Continue while
end if
next
// exit loop as all threads stopped
'System.DebugLog "exit loop."
exit
wend
System.DebugLog CurrentMethodName+": All Theads finished."
'dim n as integer = 0
'for each t as DownloadThread in threads
'n = n + 1
'System.DebugLog "Thread: "+str(t.ThreadID)+" has state: "+str(t.state)
'next
'System.DebugLog str(n)+" Threads checked, "+str(UBound(Threads)+1)+" in total"
End EventHandler
Protected Sub run()
dim s as string
dim lines(-1),line as string
dim w as DownloadThread
s=EditField1.text
s=ReplaceLineEndings(s,EndOfLine)
lines=Split(s,EndOfLine)
for each line in lines
line=trim(line)
if line<>"" then
List.AddRow line
w=new DownloadThread
w.url=line
w.listindex=List.LastIndex
w.run
Threads.Append w
end if
next
End Sub
Property threads() As DownloadThread
End Class
MenuBar MenuBar1
MenuItem UntitledMenu1 = ""
MenuItem FileMenu = "&File"
MenuItem FileQuit = "Quit"
MenuItem EditMenu = "&Edit"
MenuItem EditUndo = "&Undo"
MenuItem UntitledMenu0 = "-"
MenuItem EditCut = "Cu&t"
MenuItem EditCopy = "&Copy"
MenuItem EditPaste = "&Paste"
MenuItem EditClear = "Clear"
End MenuBar
Class App Inherits Application
End Class
Class DownloadThread Inherits Thread
EventHandler Sub Run()
dim e as integer
dim s as string
dim f as FolderItem
dim b as BinaryStream
s=NthField(url,"/",CountFields(url,"/"))
f = SpecialFolder.Desktop.Child("CURL Test - "+s)
d = new CURLSMBS
d.OptionURL=url
d.YieldTime=true
d.OptionFollowLocation = true
d.OptionMaxRedirs = 3
d.OptionVerbose=true
if not d.CreateMTOutputFile(f) then
Break // failed to create output file
end if
f = SpecialFolder.Desktop.Child("CURL Debug - "+s+".txt")
if not d.CreateMTDebugOutputFile(f) then
Break // failed to create debug file
end if
e=d.PerformMT
d.CloseMTDebugOutputFile
d.CloseMTInputFile
if d.Cancel then
f.Delete
end if
DoneMessage = "Finished. "+Format(d.GetInfoSizeDownload/1024,"0")+" kilobytes"
DoneMessageNew = true
d = nil
End EventHandler
Sub Cancel()
if d<>Nil then
// if something is running, cancel it
d.Cancel = true
end if
End Sub
Property DoneMessage As string
Property DoneMessageNew As Boolean
Property d As CURLSMBS
Property listindex As integer
Property url As string
End Class
End Project
See also:
- /CURL/CURLS get and put/CURLS get and put
- /CURL/CURLS headers
- /CURL/CURLS pop3 email delete
- /CURL/CURLS post form values/CURLS post form values
- /CURL/CURLS preemptive threaded upload
- /CURL/CURLS query file size
- /CURL/CURLS resume download with speed measurement
- /CURL/CURLS text download
- /CURL/CURLS text download web 2.0
- /CURL/CURLS upload to Web App/Web Upload Receiver
The items on this page are in the following plugins: MBS CURL Plugin.