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89 lines
2.8 KiB
89 lines
2.8 KiB
/*
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Copyright (c) 2013 Martin Sustrik All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom
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the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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IN THE SOFTWARE.
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*/
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#ifndef NN_SIPC_INCLUDED
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#define NN_SIPC_INCLUDED
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#include "../../transport.h"
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#include "../../aio/fsm.h"
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#include "../../aio/usock.h"
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#include "../utils/streamhdr.h"
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#include "../../utils/msg.h"
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/* This state machine handles IPC connection from the point where it is
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established to the point when it is broken. */
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#define NN_SIPC_ERROR 1
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#define NN_SIPC_STOPPED 2
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struct nn_sipc {
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/* The state machine. */
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struct nn_fsm fsm;
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int state;
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/* The underlying socket. */
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struct nn_usock *usock;
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/* Child state machine to do protocol header exchange. */
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struct nn_streamhdr streamhdr;
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/* The original owner of the underlying socket. */
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struct nn_fsm_owner usock_owner;
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/* Pipe connecting this IPC connection to the nanomsg core. */
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struct nn_pipebase pipebase;
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/* State of inbound state machine. */
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int instate;
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/* Buffer used to store the header of incoming message. */
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uint8_t inhdr [9];
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/* Message being received at the moment. */
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struct nn_msg inmsg;
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/* State of the outbound state machine. */
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int outstate;
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/* Buffer used to store the header of outgoing message. */
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uint8_t outhdr [9];
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/* Message being sent at the moment. */
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struct nn_msg outmsg;
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/* Event raised when the state machine ends. */
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struct nn_fsm_event done;
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};
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void nn_sipc_init (struct nn_sipc *self, int src,
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struct nn_epbase *epbase, struct nn_fsm *owner);
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void nn_sipc_term (struct nn_sipc *self);
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int nn_sipc_isidle (struct nn_sipc *self);
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void nn_sipc_start (struct nn_sipc *self, struct nn_usock *usock);
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void nn_sipc_stop (struct nn_sipc *self);
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#endif
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