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(PHP Extension) Async SFTP Progress InfoDemonstrates checking for progress info updates when running a task asynchronously. This example demonstrates an SFTP download.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // All Chilkat classes can be unlocked at once at the beginning of a program // by calling UnlockBundle. It requires a Bundle unlock code. $chilkatGlob = new CkGlobal(); $success = $chilkatGlob->UnlockBundle('Anything for 30-day trial.'); if ($success != true) { print $chilkatGlob->lastErrorText() . "\n"; exit; } $sftp = new CkSFtp(); // Set some timeouts, in milliseconds: $sftp->put_ConnectTimeoutMs(15000); $sftp->put_IdleTimeoutMs(15000); // Connect to the SSH server. // The standard SSH port = 22 // The hostname may be a hostname or IP address. $hostname = 'www.my-ssh-server.com'; $port = 22; $success = $sftp->Connect($hostname,$port); if ($success != true) { print $sftp->lastErrorText() . "\n"; exit; } // Authenticate with the SSH server. Chilkat SFTP supports // both password-based authenication as well as public-key // authentication. This example uses password authenication. $success = $sftp->AuthenticatePw('myLogin','myPassword'); if ($success != true) { print $sftp->lastErrorText() . "\n"; exit; } // After authenticating, the SFTP subsystem must be initialized: $success = $sftp->InitializeSftp(); if ($success != true) { print $sftp->lastErrorText() . "\n"; exit; } // -------------------- // Download a file // -------------------- $localFilePath = 'c:/temp/hamlet.xml'; $remoteFilePath = 'subdir1/subdir2/hamlet.xml'; // Call the async version of the DownloadFileByName 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 is a CkTask $task = $sftp->DownloadFileByNameAsync($remoteFilePath,$localFilePath); if ($sftp->get_LastMethodSuccess() == false) { print $sftp->lastErrorText() . "\n"; exit; } // Before starting the task, tell it to keep an in-memory log of what would've been // ProgressInfo callbacks. $task->put_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 != true) { print $task->lastErrorText() . "\n"; exit; } // The application is now free to do anything else // while the file is being downloaded. // For this example, we'll simply sleep and periodically // check to see if the download is finished, and report the progress // along the way. $curPctDone = 0; while ($task->get_Finished() != true) { if ($task->get_PercentDone() != $curPctDone) { $curPctDone = $task->get_PercentDone(); print $curPctDone . ' percent done' . "\n"; } // Check the progress info log. // Emit any log entries.. while (($task->get_ProgressLogSize() > 0)) { // Get the 1st entry, emit it, and then remove it.. $name = $task->progressInfoName(0); $value = $task->progressInfoValue(0); // Entries reporting the received byte count will have the name "RcvByteCount" // Entries reporting the current bytes-per-second will have the name "RcvBytesPerSec" print $name . ': ' . $value . "\n"; $task->RemoveProgressInfo(0); } // Sleep 100 ms. $task->SleepMs(100); } // Just in case there are any remaining entries... while (($task->get_ProgressLogSize() > 0)) { // Get the 1st entry, emit it, and then remove it.. $name = $task->progressInfoName(0); $value = $task->progressInfoValue(0); print $name . ': ' . $value . "\n"; $task->RemoveProgressInfo(0); } // A finished task could be one that was canceled, aborted, or truly finished. // If the task was "canceled", it was canceled prior to actually starting. This could // happen if the task was canceled while waiting in a thread pool queue to be scheduled by Chilkat's // background thread pool scheduler. // If the task was "aborted", it indicates that it was canceled while running in a background thread. // The ResultErrorText will likely indicate that the task was aborted. // If the task "completed", then it ran to completion, but the actual success/failure of the method // is determined by the result obtained via a GetResult* method. (A "completed" task will // have a StatusInt equal to 7. If the task finished, but was not completed, then it must've // been aborted or canceled: if ($task->get_StatusInt() != 7) { print 'Task did not complete.' . "\n"; print 'task status: ' . $task->status() . "\n"; exit; } // The DownloadFileByName 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 DownloadFileByName synchronously. $success = $task->GetResultBool(); if ($success != true) { // The task's ResultErrorText contains what would have been in the LastErrorText property had // the DownloadFileByName method been called synchronously. print $task->resultErrorText() . "\n"; } else { print 'File downloaded asynchronously.' . "\n"; } ?> |
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