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/*
Copyright (c) 2007-2009 FastMQ Inc.
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the Lesser GNU 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
Lesser GNU General Public License for more details.
You should have received a copy of the Lesser GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ZMQ_COMMAND_HPP_INCLUDED__
#define __ZMQ_COMMAND_HPP_INCLUDED__
#include "stdint.hpp"
namespace zmq
{
// This structure defines the commands that can be sent between threads.
struct command_t
{
// Object to process the command.
class object_t *destination;
enum type_t
{
stop,
bind,
head,
tail,
reg,
reg_and_bind,
unreg,
engine,
terminate,
terminate_ack
} type;
union {
struct {
} stop;
struct {
class pipe_reader_t *reader;
class session_t *peer;
} bind;
struct {
uint64_t bytes;
} tail;
struct {
uint64_t bytes;
} head;
struct {
class simple_semaphore_t *smph;
} reg;
struct {
class session_t *peer;
bool flow_in;
bool flow_out;
} reg_and_bind;
struct {
class simple_semaphore_t *smph;
} unreg;
// TODO: Engine object won't be deallocated on terminal shutdown
// while the command is still on the fly!
struct {
class i_engine *engine;
} engine;
struct {
} terminate;
struct {
} terminate_ack;
} args;
};
}
#endif
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