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93 lines
3.6 KiB
93 lines
3.6 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_USOCK_INCLUDED
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#define NN_USOCK_INCLUDED
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/* Import the definition of nn_iovec. */
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#include "../nn.h"
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/* OS-level sockets. */
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/* Event types generated by nn_usock. */
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#define NN_USOCK_CONNECTED 1
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#define NN_USOCK_ACCEPTED 2
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#define NN_USOCK_SENT 3
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#define NN_USOCK_RECEIVED 4
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#define NN_USOCK_ERROR 5
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#define NN_USOCK_ACCEPT_ERROR 6
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#define NN_USOCK_STOPPED 7
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#define NN_USOCK_SHUTDOWN 8
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/* Maximum number of iovecs that can be passed to nn_usock_send function. */
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#define NN_USOCK_MAX_IOVCNT 3
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/// Size of the buffer used for batch-reads of inbound data. To keep the performance optimal make sure that this value is larger than network MTU.
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//#define NN_USOCK_BATCH_SIZE 2048
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#if defined NN_HAVE_WINDOWS
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#include "usock_win.h"
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#else
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#include "usock_posix.h"
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#endif
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void nn_usock_init (struct nn_usock *self, int src, struct nn_fsm *owner);
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void nn_usock_term (struct nn_usock *self);
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int nn_usock_isidle (struct nn_usock *self);
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int nn_usock_start (struct nn_usock *self,
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int domain, int type, int protocol);
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void nn_usock_start_fd (struct nn_usock *self, int fd);
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void nn_usock_stop (struct nn_usock *self);
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void nn_usock_swap_owner (struct nn_usock *self, struct nn_fsm_owner *owner);
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int nn_usock_setsockopt (struct nn_usock *self, int level, int optname,
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const void *optval, size_t optlen);
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int nn_usock_bind (struct nn_usock *self, const struct sockaddr *addr,
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size_t addrlen);
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int nn_usock_listen (struct nn_usock *self, int backlog);
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/* Accept a new connection from a listener. When done, NN_USOCK_ACCEPTED
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event will be delivered to the accepted socket. To cancel the operation,
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stop the socket being accepted. Listening socket should not be stopped
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while accepting a new socket is underway. */
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void nn_usock_accept (struct nn_usock *self, struct nn_usock *listener);
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/* When all the tuning is done on the accepted socket, call this function
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to activate standard data transfer phase. */
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void nn_usock_activate (struct nn_usock *self);
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/* Start connecting. Prior to this call the socket has to be bound to a local
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address. When connecting is done NN_USOCK_CONNECTED event will be reaised.
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If connecting fails NN_USOCK_ERROR event will be raised. */
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void nn_usock_connect (struct nn_usock *self, const struct sockaddr *addr,
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size_t addrlen);
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void nn_usock_send (struct nn_usock *self, const struct nn_iovec *iov,
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int iovcnt);
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void nn_usock_recv (struct nn_usock *self, void *buf, size_t len, int *fd);
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int nn_usock_geterrno (struct nn_usock *self);
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#endif
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