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check if other routine is writing a text file [message #88221]

Sun, 30 March 2014 18:14

hoiting2008
Messages: 4
Registered: March 2014

Junior Member

Hi,

I'm trying to read/write the same text file with multiple IDL prompts. The different prompts usually read/write the file at different time, but there is a tiny chance that they read/write at the same time. Is there any keywords or routines that can test if other program is using the file?

Ideally, I'd like to do something like this:

test_if_someone_writing?
yes: wait for 3 seconds and try again
no: go ahead and read/write

Thanks!

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