Re: Memory mapping: MAP_PRIVATE and msync()

On Sun, 07 Apr 24 15:18:47 +0000, pehache wrote:

void* p2 = mmap( NULL
                   , n
                   , PROT_READ | PROT_WRITE
                   , MAP_SHARED | MAP_NORESERVE
                   , fd
                   , 0 );

Not easy to remember what the arguments mean. Try this:

    void * p2 = mmap
      (
        /*addr =*/ NULL,
        /*length =*/ n,
        /*prot =*/ PROT_READ | PROT_WRITE,
        /*flags =*/ MAP_SHARED | MAP_NORESERVE,
        /*fd =*/ fd,
        /*offset =*/ 0
      );