bool server_socket::open(const char* addr)
{
#ifndef ACL_WINDOWS
if (strchr(addr, '/') != NULL)
{
fd_ = acl_unix_listen(addr, backlog_, block_
? ACL_BLOCKING : ACL_NON_BLOCKING);
unix_sock_ = true;
ACL_SAFE_STRNCPY(addr_, addr, sizeof(addr_));
}
else
#endif
fd_ = acl_inet_listen(addr, backlog_, block_
? ACL_BLOCKING : ACL_NON_BLOCKING);
if (fd_ == ACL_SOCKET_INVALID)
{
logger_error("listen %s error %s", addr, last_serror());
unix_sock_ = false;
ACL_SAFE_STRNCPY(addr_, addr, sizeof(addr_));
return false;
}
if (unix_sock_)
return true;
// 之所以再用 getsockname 重新获得一些监听地址，主要是为了应对当输入的 addr
// 为 ip:0 的情形，即当给定的地址中的端口为 0 时要求操作系统自动分配一个端口号
if (acl_getsockname(fd_, addr_, sizeof(addr_)) < 0)
{
logger_error("getsockname error: %s", acl_last_serror());
ACL_SAFE_STRNCPY(addr_, addr, sizeof(addr_));
}
return true;
}
ACL_VSTREAM *acl_vstream_listen_ex(const char *addr, int qlen,
int block_mode, int io_bufsize, int io_timeout)
{
const char *myname = "acl_vstream_listen_ex";
ACL_SOCKET listenfd;
struct sockaddr_in local;
ACL_VSTREAM *listen_stream;
int len;
if (addr == 0 || *addr == 0 || qlen <= 0)
{
acl_msg_error("%s: input invalid", myname);
return NULL;
}
#ifdef ACL_UNIX
/* this maybe unix addr, such as '/home/test/listen.sock' */
if (strchr(addr, '/') != NULL) {
listenfd = acl_unix_listen(addr, qlen, 0);
if (listenfd == ACL_SOCKET_INVALID)
return NULL;
acl_non_blocking(listenfd, block_mode);
listen_stream = acl_vstream_fdopen(listenfd,
ACL_VSTREAM_FLAG_RW, io_bufsize,
io_timeout, ACL_VSTREAM_TYPE_LISTEN_UNIX);
if (listen_stream == NULL) {
acl_socket_close(listenfd);
acl_msg_error("%s: open vstream error, addr(%s)",
myname, addr);
return NULL;
}
acl_vstream_set_local(listen_stream, addr);
sprintf(listen_stream->errbuf, "+OK");
return (listen_stream);
}
#endif
/* addr such as '192.168.0.1:80' */
listenfd = acl_inet_listen(addr, qlen, block_mode);
if (listenfd == ACL_SOCKET_INVALID) {
acl_msg_error("%s: listen addr(%s) error(%s)",
myname, addr, acl_last_serror());
return NULL;
}
listen_stream = acl_vstream_fdopen(listenfd,
ACL_VSTREAM_FLAG_RW, io_bufsize,
io_timeout, ACL_VSTREAM_TYPE_LISTEN_INET);
if (listen_stream == NULL) {
acl_socket_close(listenfd);
acl_msg_error("%s: open vstream error addr(%s)", myname, addr);
return NULL;
}
memset(&local, 0, sizeof(local));
len = (int) sizeof(struct sockaddr);
if (getsockname(listenfd, (struct sockaddr*) &local,
(socklen_t *) &len) < 0)
{
acl_msg_warn("%s: getsockname error(%s) for sock(%d)",
myname, acl_last_serror(), listenfd);
acl_vstream_set_local(listen_stream, addr);
} else {
char ip[32], buf[64];
int port;
acl_inet_ntoa(local.sin_addr, ip, sizeof(ip));
port = ntohs(local.sin_port);
snprintf(buf, sizeof(buf), "%s:%d", ip, port);
acl_vstream_set_local(listen_stream, buf);
}
sprintf(listen_stream->errbuf, "+OK");
return listen_stream;
}
