C++, storing temporary files.

[cgroza]

As mentioned, the tmpnam() function gives you more control as it doesn't force a delete when closed. You just use it to generate a unique name and then pass that as filename to open.

Another way would be to generate the filename as a hash of the original video url - that way the same url would always map to the same filename. There are some very simple/fast hash functions that would work for that and it would fit into a cache scheme better too. eg. if you generate the filename and it already exists then you know it's been downloaded already, or if length is not correct then you know a resume d/l is needed.

This could be exactly what I need. Thank you. I already use the youtube video ID as a unique name so I do not need a hash.

[cgroza]

Just found out that the temp folder can be obtained with P_tmpdir from stdio.h.

[BkkBonanza]

This could be exactly what I need. Thank you. I already use the youtube video ID as a unique name so I do not need a hash.

Just prefix the video id with something unique to your app. eg. groza

And if you want, when you start up remove anything, groza* if you want to be sure the tmp files are wiped.

[SledgeHammer_999]

Also if you're using a GUI toolkit like Gtk, then there are helper functions to find the Temp folder on every platform.

[cgroza]

Also if you're using a GUI toolkit like Gtk, then there are helper functions to find the Temp folder on every platform.

I am using wxWidgets. I will try to find that helper function.

[cgroza]

Just prefix the video id with something unique to your app. eg. groza

And if you want, when you start up remove anything, groza* if you want to be sure the tmp files are wiped.

Thanks for the tip.

[cgroza]

Also if you're using a GUI toolkit like Gtk, then there are helper functions to find the Temp folder on every platform.

Got it!
wxStandardPaths::GetTempDir()