futriix/src/anet.h
zhenwei pi bff7ecc786 Introduce connAddr
Originally, connPeerToString is designed to get the address info from
socket only(for both TCP & TLS), and the API 'connPeerToString' is
oriented to operate a FD like:
int connPeerToString(connection *conn, char *ip, size_t ip_len, int *port) {
    return anetFdToString(conn ? conn->fd : -1, ip, ip_len, port, FD_TO_PEER_NAME);
}

Introduce connAddr and implement .addr method for socket and TLS,
thus the API 'connAddr' and 'connFormatAddr' become oriented to a
connection like:
static inline int connAddr(connection *conn, char *ip, size_t ip_len, int *port, int remote) {
    if (conn && conn->type->addr) {
        return conn->type->addr(conn, ip, ip_len, port, remote);
    }

    return -1;
}

Also remove 'FD_TO_PEER_NAME' & 'FD_TO_SOCK_NAME', use a boolean type
'remote' to get local/remote address of a connection.

With these changes, it's possible to support the other connection
types which does not use socket(Ex, RDMA).

Thanks to Oran for suggestions!

Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
2022-08-22 15:01:40 +08:00

75 lines
3.1 KiB
C

/* anet.c -- Basic TCP socket stuff made a bit less boring
*
* Copyright (c) 2006-2012, Salvatore Sanfilippo <antirez at gmail dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ANET_H
#define ANET_H
#include <sys/types.h>
#define ANET_OK 0
#define ANET_ERR -1
#define ANET_ERR_LEN 256
/* Flags used with certain functions. */
#define ANET_NONE 0
#define ANET_IP_ONLY (1<<0)
#if defined(__sun) || defined(_AIX)
#define AF_LOCAL AF_UNIX
#endif
#ifdef _AIX
#undef ip_len
#endif
int anetTcpNonBlockConnect(char *err, const char *addr, int port);
int anetTcpNonBlockBestEffortBindConnect(char *err, const char *addr, int port, const char *source_addr);
int anetResolve(char *err, char *host, char *ipbuf, size_t ipbuf_len, int flags);
int anetTcpServer(char *err, int port, char *bindaddr, int backlog);
int anetTcp6Server(char *err, int port, char *bindaddr, int backlog);
int anetUnixServer(char *err, char *path, mode_t perm, int backlog);
int anetTcpAccept(char *err, int serversock, char *ip, size_t ip_len, int *port);
int anetUnixAccept(char *err, int serversock);
int anetNonBlock(char *err, int fd);
int anetBlock(char *err, int fd);
int anetCloexec(int fd);
int anetEnableTcpNoDelay(char *err, int fd);
int anetDisableTcpNoDelay(char *err, int fd);
int anetSendTimeout(char *err, int fd, long long ms);
int anetRecvTimeout(char *err, int fd, long long ms);
int anetFdToString(int fd, char *ip, size_t ip_len, int *port, int remote);
int anetKeepAlive(char *err, int fd, int interval);
int anetFormatAddr(char *fmt, size_t fmt_len, char *ip, int port);
int anetPipe(int fds[2], int read_flags, int write_flags);
int anetSetSockMarkId(char *err, int fd, uint32_t id);
int anetGetError(int fd);
#endif