VS2019配置跨平台win-linux开发

在这里，悬着gdb就行了，gdbserver需要在linux端安装.

 

 

 

调试->选项->跨平台

 

 

 

最后，如果不行，在关掉当前项目，新建个linux空项目.

提供一段测试代码：

test1:

#include 
#include 
#include 
#include
#include 
#include
#include 
#include 
#include
#include 
#include 
#include
#define MAX_EVENTS 10
struct epoll_event ev, events[MAX_EVENTS];
int listen_sock, conn_sock, nfds, epollfd;
char* response = "HTTP/1.1 200 OK\r\nContent-Type:text/html\r\nContent-Length:14\r\n\r\n
hello
";
/* Set up listening socket, 'listen_sock' (socket(),
*  *     bind(), listen()) */



void do_use_fd(int fd) {


	send(fd, response, strlen(response), 0);
	close(fd);
}


bool setnonblocking(int fd, bool flag) {

	int fmode = 0;

	if (-1 == (fmode = fcntl(fd, F_GETFL, 0))) {
		return false;
	}

	if (flag)
		fmode &= (~O_NONBLOCK);
	else
		fmode |= O_NONBLOCK;

	if (-1 == fcntl(fd, F_SETFL, fmode))
		return false;
	return true;
}



int main(int argc, char** argv) {


	short PORT = 9999;
	if (argc == 2) {
		PORT = atoi(argv[1]);
	}
	listen_sock = socket(AF_INET, SOCK_STREAM, 0);
	if (-1 == listen_sock) {

		return -1;
		printf("call listen faild.");
	}


	//设置地址复用
	int val = 1;
	if (setsockopt(listen_sock, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(val)) < 0) {
		perror("setsockopt()");
	}

	sockaddr_in local = { 0 };
	socklen_t addrlen = sizeof(local);

	sockaddr_in saddr;
	saddr.sin_family = AF_INET;
	saddr.sin_port = htons(PORT);
	saddr.sin_addr.s_addr = inet_addr("0.0.0.0");

	int ret = bind(listen_sock, (sockaddr*)& saddr, sizeof(saddr));
	if (0 != ret)
	{
		std::cout << "failed to bind" << std::endl;
		return -2;
	}


	listen(listen_sock, 20);

	epollfd = epoll_create(10);
	if (epollfd == -1) {
		perror("epoll_create");
		exit(EXIT_FAILURE);
	}

	ev.events = EPOLLIN;
	ev.data.fd = listen_sock;
	if (epoll_ctl(epollfd, EPOLL_CTL_ADD, listen_sock, &ev) == -1) {
		perror("epoll_ctl: listen_sock");
		exit(EXIT_FAILURE);
	}

	for (;;) {
		nfds = epoll_wait(epollfd, events, MAX_EVENTS, -1);
		if (nfds == -1) {
			perror("epoll_pwait");
			exit(EXIT_FAILURE);
		}

		for (int n = 0; n < nfds; ++n) {
			if (events[n].data.fd == listen_sock) {
				conn_sock = accept(listen_sock,
					(struct sockaddr*) & local, &addrlen);
				if (conn_sock == -1) {
					perror("accept");
					exit(EXIT_FAILURE);
				}
				setnonblocking(conn_sock, true);
				ev.events = EPOLLIN | EPOLLET;
				ev.data.fd = conn_sock;
				if (epoll_ctl(epollfd, EPOLL_CTL_ADD, conn_sock,
					&ev) == -1) {
					perror("epoll_ctl: conn_sock");
					exit(EXIT_FAILURE);
				}
			}
			else {
				do_use_fd(events[n].data.fd);
			}
		}
	}
	return 0;
}