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    SubjectRe: [RFC PATCH 2/7] perf: add pipe-specific header read/write and event processing code
    Em Sat, Mar 27, 2010 at 04:14:57AM +0100, Frederic Weisbecker escreveu:
    > On Wed, Mar 03, 2010 at 01:05:24AM -0600, Tom Zanussi wrote:
    > >
    > > +int perf_header__write_pipe(struct perf_header *self, int fd)
    > > +{
    > > + struct perf_file_header_pipe f_header;
    > > + int err;
    > > +
    > > + f_header = (struct perf_file_header_pipe){
    > > + .magic = PERF_MAGIC,
    > > + .size = sizeof(f_header),
    > > + };

    > I actually wonder why you bother with a header in the pipe mode,
    > since it only contains MAGIC and its size.

    Because he wants to detect endianness :-)

    - ARnaldo


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