2011/5/3 Kay Sievers <kay.siev...@vrfy.org>: > On Tue, May 3, 2011 at 03:00, fykc...@gmail.com <fykc...@gmail.com> wrote: >> 2011/5/3 Kay Sievers <kay.siev...@vrfy.org> >>> >>> On Mon, May 2, 2011 at 05:18, fykc...@gmail.com <fykc...@gmail.com> wrote: >>> > loop_read/write will try to fill/read 'nbytes' of caller >>> > supplying buffer. >>> > This argument is currently of type size_t, which is always true >>> > for loop quit condition "while (nbytes > 0)", hence we change it to >>> > type ssize_t here. >>> >>> Where would that be useful? It's the size of the buffer supplied to >>> the function, just like read() itself has. >> Note "while(nbytes > 0)" is equal to "while(true)" > > Why? nbytes can be zero, and then it's false. It's counting down with > every read(). Sorry, I didn't notice nbytes will never be smaller than k(http://cgit.freedesktop.org/systemd/tree/src/util.c#n2667).
Thank you and sorry for noise here. -- Regards, - cee1 _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
