以下是一个使用 lws_service 处理 HTTP 和 WebSocket 的示例代码，绑定在 IP 地址 10.10.50.255 和端口号 8001：
#include <libwebsockets.h>
static int callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user, void *in, size_t len)
{
switch (reason) {
case LWS_CALLBACK_HTTP:
// 处理 HTTP 请求
break;
default:
break;
}
return 0;
}
static int callback_ws(struct lws *wsi, enum lws_callback_reasons reason, void *user, void *in, size_t len)
{
switch (reason) {
case LWS_CALLBACK_ESTABLISHED:
// WebSocket 连接建立
break;
case LWS_CALLBACK_RECEIVE:
// 收到 WebSocket 消息
break;
default:
break;
}
return 0;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
memset(&info, 0, sizeof(info));
info.port = CONTEXT_PORT_NO_LISTEN; // 不监听端口，仅作为客户端连接其他服务器
struct lws_protocols protocols[] = {
{"http", callback_http, 0},
{"websocket", callback_ws, sizeof(int)},
{NULL, NULL, 0}
};
info.protocols = protocols;
#ifdef __linux__
info.iface = "eth0";
#endif
info.options |= LWS_SERVER_OPTION_EXPLICIT_VHOSTS;
context = lws_create_context(&info);
if (!context) {
fprintf(stderr,"Failed to create lws context\n");
return 1;
}
struct lws_vhost *vh = lws_create_vhost(context, &info);
if (!vh) {
fprintf(stderr,"Failed to create vhost\n");
lws_context_destroy(context);
return 1;
}
struct sockaddr_in sin;
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_port = htons(8001);
sin.sin_addr.s_addr = htonl(0x0a0a32ff);
if (lws_bind(vh->listen_socket_fd, (struct sockaddr*)&sin, sizeof(struct sockaddr_in)) == -1) {
perror("bind");
lws_context_destroy(context);
return 1;
}
printf("Server started on IP: 10.10.50.255, Port: 8001\n");
while (true) {
lws_service(context, /* timeout_ms = */1000);
}
lws_context_destroy(context);
return 0;
}
以上是一个简单的示例，演示了如何使用 libwebsockets（LWS）库处理 HTTP 和 WebSocket 请求，并绑定在指定的 IP 地址和端口上。请注意，此示例中省略了一些必要的错误处理和其他功能，实际应用中需要根据需求进行完善。
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