On Sat, 21 Aug 1999 02:10:47 -0600 Wes Peters <w...@softweyr.com> wrote:
> I discovered to my dismay today that the length field in the mmap call is > a size_t, not an off_t. I was attempting to process a large (~50 MByte) file > and found I was only processing the first 4 MBytes of it. ...first of all, I assume you mean GByte, not MByte. The type of the "len" argument is specified by multiple standards. You could change size_t to a 64-bit quantity, but then you have: (1) A serious ABI incompatibility issue with the rest of the x86 world. (2) You'd have to go to 64-bit arithmetic everywhere in the VM code which could seriously impact performance. > Is this intentional, or just an artifact of the implementation? Is there any > reason NOT to change this to an off_t? -- Jason R. Thorpe <thor...@nas.nasa.gov> To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message