Hello, I have implemented a custom VOL plugin for HDF5 and I noticed that every time the application exits, the file_close callback is called one more time at the end. The contents of the object passed as a parameter are unspecified and sometimes the same as the previous objects, so it is hard for me to identify this redundant function call.
For example, having the following user application: file_id = H5Fcreate(“myfile.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); status = H5Fclose(file_id); The first API call will call the file_open callback through the VOL plugin. The second API call will call the file_close callback through the VOL plugin with parameter the object specifying the file we want to close. This object contains the file name. However, I see another call of the file_close callback at the very end with an invalid object (although not NULL) and file name garbage. This causes my program to crash, since I am trying to close the underlying file which is invalid! I cannot think of a way to identify if this call is a redundant call and to ignore it. Do you have nay idea of how to deal with this redundant callback? Thanks, Dimos --- Dimokritos Stamatakis PhD student, Brandeis University --- Dimokritos Stamatakis PhD student, Brandeis University
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