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Diffstat (limited to 'src/object.hpp')
| -rw-r--r-- | src/object.hpp | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/object.hpp b/src/object.hpp new file mode 100644 index 0000000..932cea7 --- /dev/null +++ b/src/object.hpp @@ -0,0 +1,134 @@ +/* + Copyright (c) 2009-2011 250bpm s.r.o. + Copyright (c) 2007-2009 iMatix Corporation + Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file + + This file is part of 0MQ. + + 0MQ is free software; you can redistribute it and/or modify it under + the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + 0MQ is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef __ZMQ_OBJECT_HPP_INCLUDED__ +#define __ZMQ_OBJECT_HPP_INCLUDED__ + +#include "stdint.hpp" + +namespace zmq +{ + + struct i_engine; + struct endpoint_t; + struct command_t; + class ctx_t; + class pipe_t; + class socket_base_t; + class session_base_t; + class io_thread_t; + class own_t; + + // Base class for all objects that participate in inter-thread + // communication. + + class object_t + { + public: + + object_t (zmq::ctx_t *ctx_, uint32_t tid_); + object_t (object_t *parent_); + virtual ~object_t (); + + uint32_t get_tid (); + ctx_t *get_ctx (); + void process_command (zmq::command_t &cmd_); + + protected: + + // Using following function, socket is able to access global + // repository of inproc endpoints. + int register_endpoint (const char *addr_, zmq::endpoint_t &endpoint_); + void unregister_endpoints (zmq::socket_base_t *socket_); + zmq::endpoint_t find_endpoint (const char *addr_); + void destroy_socket (zmq::socket_base_t *socket_); + + // Logs an message. + void log (const char *format_, ...); + + // Chooses least loaded I/O thread. + zmq::io_thread_t *choose_io_thread (uint64_t affinity_); + + // Derived object can use these functions to send commands + // to other objects. + void send_stop (); + void send_plug (zmq::own_t *destination_, + bool inc_seqnum_ = true); + void send_own (zmq::own_t *destination_, + zmq::own_t *object_); + void send_attach (zmq::session_base_t *destination_, + zmq::i_engine *engine_, bool inc_seqnum_ = true); + void send_bind (zmq::own_t *destination_, zmq::pipe_t *pipe_, + bool inc_seqnum_ = true); + void send_activate_read (zmq::pipe_t *destination_); + void send_activate_write (zmq::pipe_t *destination_, + uint64_t msgs_read_); + void send_hiccup (zmq::pipe_t *destination_, void *pipe_); + void send_pipe_term (zmq::pipe_t *destination_); + void send_pipe_term_ack (zmq::pipe_t *destination_); + void send_term_req (zmq::own_t *destination_, + zmq::own_t *object_); + void send_term (zmq::own_t *destination_, int linger_); + void send_term_ack (zmq::own_t *destination_); + void send_reap (zmq::socket_base_t *socket_); + void send_reaped (); + void send_done (); + + // These handlers can be overloaded by the derived objects. They are + // called when command arrives from another thread. + virtual void process_stop (); + virtual void process_plug (); + virtual void process_own (zmq::own_t *object_); + virtual void process_attach (zmq::i_engine *engine_); + virtual void process_bind (zmq::pipe_t *pipe_); + virtual void process_activate_read (); + virtual void process_activate_write (uint64_t msgs_read_); + virtual void process_hiccup (void *pipe_); + virtual void process_pipe_term (); + virtual void process_pipe_term_ack (); + virtual void process_term_req (zmq::own_t *object_); + virtual void process_term (int linger_); + virtual void process_term_ack (); + virtual void process_reap (zmq::socket_base_t *socket_); + virtual void process_reaped (); + + // Special handler called after a command that requires a seqnum + // was processed. The implementation should catch up with its counter + // of processed commands here. + virtual void process_seqnum (); + + private: + + // Context provides access to the global state. + zmq::ctx_t *ctx; + + // Thread ID of the thread the object belongs to. + uint32_t tid; + + void send_command (command_t &cmd_); + + object_t (const object_t&); + const object_t &operator = (const object_t&); + }; + +} + +#endif |