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//
// Copyright 2017 Garrett D'Amore <garrett@damore.org>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#ifndef CORE_PIPE_H
#define CORE_PIPE_H
// NB: This structure is supplied here for use by the CORE. Use of this
// OUSIDE of the core is STRICTLY VERBOTEN. NO DIRECT ACCESS BY PROTOCOLS OR
// TRANSPORTS.
#include "core/defs.h"
#include "core/thread.h"
#include "core/transport.h"
struct nni_pipe {
uint32_t p_id;
nni_tran_pipe p_tran_ops;
void * p_tran_data;
void * p_proto_data;
nni_list_node p_node;
nni_sock * p_sock;
nni_ep * p_ep;
int p_reap;
int p_active;
nni_mtx p_mtx;
int p_refcnt;
};
// AIO
extern int nni_pipe_aio_recv(nni_pipe *, nni_aio *);
extern int nni_pipe_aio_send(nni_pipe *, nni_aio *);
// Pipe operations that protocols use.
extern int nni_pipe_recv(nni_pipe *, nng_msg **);
extern int nni_pipe_send(nni_pipe *, nng_msg *);
extern uint32_t nni_pipe_id(nni_pipe *);
extern void nni_pipe_close(nni_pipe *);
extern void nni_pipe_incref(nni_pipe *);
extern void nni_pipe_decref(nni_pipe *);
// Used only by the socket core - as we don't wish to expose the details
// of the pipe structure outside of pipe.c.
extern int nni_pipe_create(nni_pipe **, nni_ep *);
extern void nni_pipe_destroy(nni_pipe *);
extern uint16_t nni_pipe_proto(nni_pipe *);
extern uint16_t nni_pipe_peer(nni_pipe *);
extern int nni_pipe_start(nni_pipe *);
extern int nni_pipe_getopt(nni_pipe *, int, void *, size_t *sizep);
#endif // CORE_PIPE_H
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