Thanks, @Sree, it's very helpful. 在 2016年10月19日星期三 UTC+8上午5:50:01，Sree Kuchibhotla写道： > > Hi Wankai, > > The following design document explains the rationale behind the new epoll > implementation. Polling island was added as a part of this change. > https://github.com/grpc/grpc/blob/master/doc/epoll-polling-engine.md > (see section 4). > > Here is some high level summary: > - Polling island represents the underlying epoll set containing the file > descriptors (which is why it contains the epoll-fd) > - The main idea in having them is to prevent a file descriptor from being > in multiple epoll sets. This means that whenever we add a file descriptor > (that already belongs to an epoll set) to another epoll set, we merge the > underlying polling islands and old polling island's merged_to field points > to the new polling island.. > > the document's section 4 explains it all > > thanks, > Sree > > On Tue, Oct 18, 2016 at 8:38 AM, Wankai Zhang <[email protected] > <javascript:>> wrote: > >> >> Hello, all: >> I am using c/c++. >> I am confused of polling_island data structure. Why it contains a field >> "merged_to" ? >> Could anyone help me? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "grpc.io" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at https://groups.google.com/group/grpc-io. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/grpc-io/24a57321-0d44-407c-95c4-f4debd94055c%40googlegroups.com >> >> <https://groups.google.com/d/msgid/grpc-io/24a57321-0d44-407c-95c4-f4debd94055c%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > >
-- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/grpc-io. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/1b8325c6-2f5c-4b19-9a06-9cd99b096da9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
