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//
// Copyright 2016 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.
//
#include "core/nng_impl.h"
// This file contains functions relating to pipes.
//
// Operations on pipes (to the transport) are generally blocking operations,
// performed in the context of the protocol.
// nni_pipe_id returns the 32-bit pipe id, which can be used in backtraces.
uint32_t
nni_pipe_id(nni_pipe *p)
{
return (p->p_id);
}
int
nni_pipe_send(nni_pipe *p, nng_msg *msg)
{
return (p->p_ops.p_send(p->p_data, msg));
}
int
nni_pipe_recv(nni_pipe *p, nng_msg **msgp)
{
return (p->p_ops.p_recv(p->p_data, msgp));
}
// nni_pipe_close closes the underlying connection. It is expected that
// subsequent attempts receive or send (including any waiting receive) will
// simply return NNG_ECLOSED.
void
nni_pipe_close(nni_pipe *p)
{
p->p_ops.p_close(p->p_data);
}
uint16_t
nni_pipe_peer(nni_pipe *p)
{
return (p->p_ops.p_peer(p->p_data));
}
void
nni_pipe_destroy(nni_pipe *p)
{
if (p->p_data != NULL) {
p->p_ops.p_destroy(p->p_data);
}
nni_free(p, sizeof (*p));
}
int
nni_pipe_create(nni_pipe **pp, const nni_pipe_ops *ops)
{
nni_pipe *p;
if ((p = nni_alloc(sizeof (*p))) == NULL) {
return (NNG_ENOMEM);
}
p->p_data = NULL;
p->p_ops = *ops;
p->p_id = nni_plat_nextid();
return (0);
}
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