[GitHub] [incubator-nuttx] v01d opened a new issue #3393: CONCURRENT STREAM READ/WRITE

[GitBox <gi...@apache.org>]

v01d opened a new issue #3393:
URL: https://github.com/apache/incubator-nuttx/issues/3393


   ```
     Description: NuttX only supports a single file pointer so reads and writes
                  must be from the same position.  This prohibits implementation
                  of behavior like that required for fopen() with the "a+" mode.
                  According to the fopen man page:
   
                  "a+ Open for reading and appending (writing at end of file).
                   The file is created if it does not exist. The initial file
                   position for reading is at the beginning of the file, but
                   output is always appended to the end of the file."
   
                  At present, the single NuttX file pointer is positioned to the
                  end of the file for both reading and writing.
     Status:      Open
     Priority:    Medium.  This kind of operation is probably not very common in
                  deeply embedded systems but is required by standards.
   ```


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