How Can I Get File Is Uploaded Or Not

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Hi i have a simple question, i have window service that run in specific interval.
Now i have one issue when user upload a big file and during same time window service run and convert that file to mp4 using ffmpeg but original video is not uploaded completely. therefor converted video does not works.

So i want to convert file only after video upload finished. How can i know that video file is uploaded successfully or not ?

user uploads file using Filezilla or other ftp clients.

Thanks in Advanced..

Posted 18-Dec-15 2:20am

Member 11324668

Updated 18-Dec-15 2:38am

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ZurdoDev 18-Dec-15 8:32am

Depends on what code you are using to upload the file.

Member 11324668 18-Dec-15 8:36am

user uploads file using filezila or other ftp clients

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Jochen Arndt · Accepted Answer · 2015-12-18T03:01:00

Your FTP server should know which files are actually being uploaded.

A good implemented server would also lock the file even for reading while the upload is in progress. Then your service might detect the new file but will be not be able to open it.

If there is no read lock, there should be at least an exclusive write lock. So you can try to open the file for appending (close it immediately upon success). Failure indicates then that the file is still uploading.

The last resort is getting a list of open file handles and check if the file is in the list. But this can be difficult with C# (there is an article using C++ her at CP: Listing Used Files[^]).