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Asked: 2026-05-31T02:15:35+00:00

On Linux. I want to build a buffer of files. A new file is

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On Linux.

I want to build a buffer of files. A new file is saved every 30 minutes . But the total number of files allowed are ‘n’.

so when ‘n+1’th file is created, the oldest one has to be deleted.

I found stuff like ‘dirent.h’ and ‘struct stat’ that can help access directory, list all files and get its properties.

struct stat does not however the give time of creation, but just – last modified,last accessed, time of last status changed http://pubs.opengroup.org/onlinepubs/7908799/xsh/sysstat.h.html

Please Help.

P.S: boost is not available right now.

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1 Answer

  1. Editorial Team

    On Linux there is no such thing as file creation time saved with file in file system(s) metadata. There is something close to it, but not the same: inode modification time (this is the st_ctime member of struct stat). From stat man page:

    The field st_ctime is changed by writing or by setting inode
    information (i.e., owner, group group,link count, mode, etc.).

    As long as you do not modify these properties and you do not write (more than zero bytes) to a file(s) – the st_ctime is your “file creation time”.

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