2013/1/14 Mike Hommey <[email protected]> > On Mon, Jan 14, 2013 at 11:43:44AM +1300, Robert O'Callahan wrote: > > I need a big read-only buffer full of zeroes. On Linux I could mmap > > /dev/zero read-only, and something similar on Windows/Mac I'm sure, but > do > > we already have code for that, or better yet something like that already > > mapped into memory? > > You could just use calloc(). Jemalloc will do the appropriate thing. >
Out of curiosity, how can it? Since the block returned by calloc is not read-only, how would a subsequent non-zero write be handled? Benoit > > Mike > _______________________________________________ > dev-platform mailing list > [email protected] > https://lists.mozilla.org/listinfo/dev-platform > _______________________________________________ dev-platform mailing list [email protected] https://lists.mozilla.org/listinfo/dev-platform
