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(PowerShell) Asynchronous FTP UploadDemonstrates an asynchronous FTP upload.
Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll" # This example assumes the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. $ftp = New-Object Chilkat.Ftp2 $ftp.Hostname = "ftp.myftpserver.com" $ftp.Username = "mylogin" $ftp.Password = "mypassword" # Connect and login to the FTP server. $success = $ftp.Connect() if ($success -ne $true) { $($ftp.LastErrorText) exit } # Change to the remote directory where the file will be uploaded. $success = $ftp.ChangeRemoteDir("junk") if ($success -ne $true) { $($ftp.LastErrorText) exit } $localFilepath = "qa_data/xml/hamlet.xml" $remoteFilename = "hamlet.xml" # Call the async version of the PutFile method to return a task object. # The task object is loaded, but is in the Inert state -- meaning it is # not yet scheduled to run on Chilkat's background thread pool. $task = $ftp.PutFileAsync($localFilepath,$remoteFilename) if ($ftp.LastMethodSuccess -eq $false) { $($ftp.LastErrorText) exit } # Before starting the task, tell it to keep an in-memory log of what would've been # ProgressInfo callbacks. $task.KeepProgressLog = $true # Schedule the task for running on the thread pool. This changes the task's state # from Inert to Live. $success = $task.Run() if ($success -ne $true) { $($task.LastErrorText) exit } # The application is now free to do anything else # while the file is being uploaded. # For this example, we'll simply sleep and periodically # check to see if the upload is finished, and report the progress # along the way. $curPctDone = 0 while ($task.Finished -ne $true) { if ($task.PercentDone -ne $curPctDone) { $curPctDone = $task.PercentDone $([string]$curPctDone + " percent done") } # Check the progress info log. # Emit any log entries.. while (($task.ProgressLogSize -gt 0)) { # Get the 1st entry, emit it, and then remove it.. $name = $task.ProgressInfoName(0) $value = $task.ProgressInfoValue(0) # Entries reporting the sent byte count will have the name "SendByteCount" # Entries reporting the current bytes-per-second will have the name "SendBytesPerSec" $($name + ": " + $value) $task.RemoveProgressInfo(0) } # Sleep 100 ms. $task.SleepMs(100) } # Just in case there are any remaining entries... while (($task.ProgressLogSize -gt 0)) { # Get the 1st entry, emit it, and then remove it.. $name = $task.ProgressInfoName(0) $value = $task.ProgressInfoValue(0) $($name + ": " + $value) $task.RemoveProgressInfo(0) } # A finished task could be one that was canceled, aborted, or truly finished. # If the task was "canceled", it was canceled prior to actually starting. This could # happen if the task was canceled while waiting in a thread pool queue to be scheduled by Chilkat's # background thread pool scheduler. # If the task was "aborted", it indicates that it was canceled while running in a background thread. # The ResultErrorText will likely indicate that the task was aborted. # If the task "completed", then it ran to completion, but the actual success/failure of the method # is determined by the result obtained via a GetResult* method. (A "completed" task will # have a StatusInt equal to 7. If the task finished, but was not completed, then it must've # been aborted or canceled: if ($task.StatusInt -ne 7) { $("Task did not complete.") $("task status: " + $task.Status) exit } # The PutFile method returns a boolean. Therefore, after the task is finished, # we can get the boolean result by calling GetResultBool. This is the return value had # we called PutFile synchronously. $success = $task.GetResultBool() if ($success -ne $true) { # The task's ResultErrorText contains what would have been in the LastErrorText property had # the GetFile method been called synchronously. $($task.ResultErrorText) } else { $("File uploaded asynchronously.") } $success = $ftp.Disconnect() |
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