e3f2a3949d
For now, this provides common abstraction for Linux epoll and FreeBSD kqueue. It also provides the basis for future changes where alternate userspace TCP stacks have their own mechanism for polling a group of descriptors. While here, remove old epoll/kqueue code in iscsi/conn.c that was commented out when the iSCSI idle connection code was recently removed - we now have a real implementation of it in sock.c so the original code is no longer needed as a reference. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I664ae32a5ff4d37711b7f534149eb0eb35942335 Reviewed-on: https://review.gerrithub.io/398969 Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
80 lines
3.2 KiB
C
80 lines
3.2 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** \file
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* TCP socket abstraction layer
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*/
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#ifndef SPDK_SOCK_H
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#define SPDK_SOCK_H
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#include "spdk/stdinc.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct spdk_sock;
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struct spdk_sock_group;
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int spdk_sock_getaddr(struct spdk_sock *sock, char *saddr, int slen, char *caddr, int clen);
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struct spdk_sock *spdk_sock_connect(const char *ip, int port);
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struct spdk_sock *spdk_sock_listen(const char *ip, int port);
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struct spdk_sock *spdk_sock_accept(struct spdk_sock *sock);
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int spdk_sock_close(struct spdk_sock **sock);
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ssize_t spdk_sock_recv(struct spdk_sock *sock, void *buf, size_t len);
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ssize_t spdk_sock_writev(struct spdk_sock *sock, struct iovec *iov, int iovcnt);
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int spdk_sock_set_recvlowat(struct spdk_sock *sock, int nbytes);
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int spdk_sock_set_recvbuf(struct spdk_sock *sock, int sz);
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int spdk_sock_set_sendbuf(struct spdk_sock *sock, int sz);
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bool spdk_sock_is_ipv6(struct spdk_sock *sock);
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bool spdk_sock_is_ipv4(struct spdk_sock *sock);
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typedef void (*spdk_sock_cb)(void *arg, struct spdk_sock_group *group, struct spdk_sock *sock);
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struct spdk_sock_group *spdk_sock_group_create(void);
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int spdk_sock_group_add_sock(struct spdk_sock_group *group, struct spdk_sock *sock,
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spdk_sock_cb cb_fn, void *cb_arg);
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int spdk_sock_group_remove_sock(struct spdk_sock_group *group, struct spdk_sock *sock);
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int spdk_sock_group_poll(struct spdk_sock_group *group);
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int spdk_sock_group_poll_count(struct spdk_sock_group *group, int max_events);
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int spdk_sock_group_close(struct spdk_sock_group **group);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SPDK_SOCK_H */
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