c++ - How can I ensure I can read the file and its not locked by another process -


my environment mac os x , program in c++ if process accessing file in such way other processes denied read access file. process b tries open file using c/c++ function fopen "rb" mode.

should expect fopen fail , return null ? or fopen possibly succeed read call fail ?

thanks

read beej's guide unix ipc

read thread, seems mandatory locks (what looking for) platform-specific, , os x has no support them.


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