//
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// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
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//
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// This software is supplied under the terms of the MIT License, a
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// copy of which should be located in the distribution where this
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// file was obtained (LICENSE.txt). A copy of the license may also be
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// found online at https://opensource.org/licenses/MIT.
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//
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#ifndef CORE_STREAM_H
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#define CORE_STREAM_H
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// This provides an abstraction for byte streams, allowing polymorphic
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// use of them in rather flexible contexts.
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#include "core/nng_impl.h"
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// Private property operations (these include the types.)
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extern int nni_stream_get(
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nng_stream *, const char *, void *, size_t *, nni_type);
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extern int nni_stream_set(
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nng_stream *, const char *, const void *, size_t, nni_type);
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extern int nni_stream_dialer_get(
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nng_stream_dialer *, const char *, void *, size_t *, nni_type);
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extern int nni_stream_dialer_set(
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nng_stream_dialer *, const char *, const void *, size_t, nni_type);
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extern int nni_stream_listener_get(
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nng_stream_listener *, const char *, void *, size_t *, nni_type);
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extern int nni_stream_listener_set(
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nng_stream_listener *, const char *, const void *, size_t, nni_type);
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// This is the common implementation of a connected byte stream. It should be
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// the first element of any implementation. Applications are not permitted to
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// access it directly.
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struct nng_stream {
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void (*s_free)(void *);
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void (*s_close)(void *);
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void (*s_recv)(void *, nng_aio *);
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void (*s_send)(void *, nng_aio *);
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int (*s_get)(void *, const char *, void *, size_t *, nni_type);
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int (*s_set)(void *, const char *, const void *, size_t, nni_type);
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};
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// Dialer implementation. Stream dialers create streams.
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struct nng_stream_dialer {
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void (*sd_free)(void *);
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void (*sd_close)(void *);
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void (*sd_dial)(void *, nng_aio *);
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int (*sd_get)(void *, const char *, void *, size_t *, nni_type);
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int (*sd_set)(void *, const char *, const void *, size_t, nni_type);
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};
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// Listener implementation. Stream listeners accept connections and create
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// streams.
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struct nng_stream_listener {
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void (*sl_free)(void *);
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void (*sl_close)(void *);
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int (*sl_listen)(void *);
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void (*sl_accept)(void *, nng_aio *);
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int (*sl_get)(void *, const char *, void *, size_t *, nni_type);
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int (*sl_set)(void *, const char *, const void *, size_t, nni_type);
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};
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#endif // CORE_STREAM_H
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