ACL_VSTREAM *acl_vstream_accept_ex(ACL_VSTREAM *listen_stream,
ACL_VSTREAM *client_stream, char *addr, int size)
{
const char *myname = "acl_vstream_accept_ex";
ACL_SOCKET connfd = ACL_SOCKET_INVALID;
ACL_SOCKET servfd = ACL_VSTREAM_SOCK(listen_stream);
char buf[256];
if ((listen_stream->type & ACL_VSTREAM_TYPE_LISTEN_INET)) {
#ifdef WIN32
if (!(listen_stream->type & ACL_VSTREAM_TYPE_LISTEN_IOCP))
connfd = acl_inet_accept_ex(servfd, buf, sizeof(buf));
else if (listen_stream->iocp_sock == ACL_SOCKET_INVALID)
return NULL;
else {
int ret;
connfd = listen_stream->iocp_sock;
listen_stream->iocp_sock = ACL_SOCKET_INVALID;
/* iocp 方式下，需调用下面过程以允许调用
* getpeername/getsockname
*/
ret = setsockopt(connfd, SOL_SOCKET,
SO_UPDATE_ACCEPT_CONTEXT,
(char *)&servfd, sizeof(servfd));
buf[0] = 0;
if (ret != SOCKET_ERROR)
acl_getpeername(connfd, buf, sizeof(buf));
}
#else
connfd = acl_inet_accept_ex(servfd, buf, sizeof(buf));
#endif
if (connfd != ACL_SOCKET_INVALID && addr != NULL && size > 0)
ACL_SAFE_STRNCPY(addr, buf, size);
#ifdef ACL_UNIX
} else if ((listen_stream->type & ACL_VSTREAM_TYPE_LISTEN_UNIX)) {
connfd = acl_unix_accept(servfd);
if (acl_getpeername(connfd, buf, sizeof(buf)) < 0)
buf[0] = 0;
if (addr)
ACL_SAFE_STRNCPY(addr, buf, size);
#endif
} else
acl_msg_fatal("%s(%d)->%s: invalid listen stream(%d)",
__FILE__, __LINE__, myname, listen_stream->flag);
if (connfd == ACL_SOCKET_INVALID)
return NULL;
if (client_stream != NULL) {
acl_vstream_reset(client_stream);
ACL_VSTREAM_SET_SOCK(client_stream, connfd);
} else {
client_stream = acl_vstream_fdopen(connfd,
ACL_VSTREAM_FLAG_RW,
(int) listen_stream->read_buf_len,
listen_stream->rw_timeout,
ACL_VSTREAM_TYPE_SOCK);
/* 让 client_stream 的 context 成员继承 listen_stream 的
* context 成员变量.
*/
client_stream->context = listen_stream->context;
}
if (client_stream == NULL)
return NULL;
acl_vstream_set_peer(client_stream, buf);
return client_stream;
}
ACL_SOCKET acl_inet_accept(ACL_SOCKET listen_fd)
{
return acl_inet_accept_ex(listen_fd, NULL, 0);
}