diff options
Diffstat (limited to 'src/crimson/osd/chained_dispatchers.h')
-rw-r--r-- | src/crimson/osd/chained_dispatchers.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/crimson/osd/chained_dispatchers.h b/src/crimson/osd/chained_dispatchers.h new file mode 100644 index 00000000..c3040836 --- /dev/null +++ b/src/crimson/osd/chained_dispatchers.h @@ -0,0 +1,32 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:nil -*- +// vim: ts=8 sw=2 smarttab + +#pragma once + +#include <deque> +#include "crimson/net/Dispatcher.h" + +// in existing Messenger, dispatchers are put into a chain as described by +// chain-of-responsibility pattern. we could do the same to stop processing +// the message once any of the dispatchers claims this message, and prevent +// other dispatchers from reading it. but this change is more involved as +// it requires changing the ms_ methods to return a bool. so as an intermediate +// solution, we are using an observer dispatcher to notify all the interested +// or unintersted parties. +class ChainedDispatchers : public ceph::net::Dispatcher { + std::deque<Dispatcher*> dispatchers; +public: + void push_front(Dispatcher* dispatcher) { + dispatchers.push_front(dispatcher); + } + void push_back(Dispatcher* dispatcher) { + dispatchers.push_back(dispatcher); + } + seastar::future<> ms_dispatch(ceph::net::ConnectionRef conn, MessageRef m) override; + seastar::future<> ms_handle_accept(ceph::net::ConnectionRef conn) override; + seastar::future<> ms_handle_connect(ceph::net::ConnectionRef conn) override; + seastar::future<> ms_handle_reset(ceph::net::ConnectionRef conn) override; + seastar::future<> ms_handle_remote_reset(ceph::net::ConnectionRef conn) override; + seastar::future<std::unique_ptr<AuthAuthorizer>> + ms_get_authorizer(peer_type_t peer_type) override; +}; |