update
This commit is contained in:
parent
8a9d4aa7b3
commit
6eba99e576
@ -10,6 +10,6 @@ include_directories(
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/include
|
||||
)
|
||||
|
||||
add_executable(test1
|
||||
src/test1.cpp
|
||||
add_executable(web
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/src/web.cpp
|
||||
)
|
||||
@ -0,0 +1,3 @@
|
||||
namespace zt{
|
||||
|
||||
}
|
||||
58
include/demo.hpp
Normal file
58
include/demo.hpp
Normal file
@ -0,0 +1,58 @@
|
||||
#include <coroutine>
|
||||
#include <iostream>
|
||||
#include <stdexcept>
|
||||
#include <string>
|
||||
#include <type_traits>
|
||||
|
||||
namespace zt {
|
||||
namespace demo{
|
||||
template<class T>
|
||||
struct Promise;
|
||||
|
||||
template<class T>
|
||||
struct coroutine: std::coroutine_handle<Promise<T>>{
|
||||
using promise_type = Promise<T>;
|
||||
};
|
||||
|
||||
struct RAII{
|
||||
std::string name;
|
||||
RAII(const std::string &s):name(s){
|
||||
std::cout<<__FUNCTION__<<" "<<s<<'\n';
|
||||
}
|
||||
~RAII(){
|
||||
std::cout<<__FUNCTION__<<" "<<name<<'\n';
|
||||
}
|
||||
};
|
||||
|
||||
template<class T=void>
|
||||
struct Promise{
|
||||
Promise():raii("in promise"){};
|
||||
RAII raii;
|
||||
auto initial_suspend(){
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
return std::suspend_always{};
|
||||
// return std::suspend_never{};
|
||||
}
|
||||
auto final_suspend()noexcept{//最后要不要把句柄执行权限归还，如果不归还，那么协程被销毁，继续检查.done()则Segmentation fault
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
return std::suspend_always{};
|
||||
}
|
||||
void unhandled_exception(){
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
throw std::runtime_error("unhandled exeception\n");
|
||||
}
|
||||
void return_value(const std::decay_t<T> &t){
|
||||
std::cout<<__FUNCTION__<<' '<<t<<'\n';
|
||||
}
|
||||
coroutine<T> get_return_object(){
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
return {coroutine<T>::from_promise(*this)};
|
||||
}
|
||||
auto yield_value(const std::decay_t<T> &t){
|
||||
std::cout<<__FUNCTION__<<' '<<t<<'\n';
|
||||
return std::suspend_always{};
|
||||
}
|
||||
coroutine<T> h;
|
||||
};
|
||||
}
|
||||
}
|
||||
@ -1,75 +0,0 @@
|
||||
#include <coroutine>
|
||||
#include <iostream>
|
||||
#include <stdexcept>
|
||||
#include <string>
|
||||
#include <type_traits>
|
||||
|
||||
template<class T>
|
||||
struct Promise;
|
||||
|
||||
template<class T>
|
||||
struct coroutine: std::coroutine_handle<Promise<T>>{
|
||||
using promise_type = ::Promise<T>;
|
||||
};
|
||||
|
||||
struct RAII{
|
||||
std::string name;
|
||||
RAII(const std::string &s):name(s){
|
||||
std::cout<<__FUNCTION__<<" "<<s<<'\n';
|
||||
}
|
||||
~RAII(){
|
||||
std::cout<<__FUNCTION__<<" "<<name<<'\n';
|
||||
}
|
||||
};
|
||||
|
||||
template<class T=void>
|
||||
struct Promise{
|
||||
Promise():raii("in promise"){};
|
||||
RAII raii;
|
||||
auto initial_suspend(){
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
return std::suspend_always{};
|
||||
// return std::suspend_never{};
|
||||
}
|
||||
auto final_suspend()noexcept{//最后要不要把句柄执行权限归还，如果不归还，那么协程被销毁，继续检查.done()则Segmentation fault
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
return std::suspend_always{};
|
||||
}
|
||||
void unhandled_exception(){
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
throw std::runtime_error("unhandled exeception\n");
|
||||
}
|
||||
void return_value(const std::decay_t<T> &t){
|
||||
std::cout<<__FUNCTION__<<' '<<t<<'\n';
|
||||
}
|
||||
coroutine<T> get_return_object(){
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
return {coroutine<T>::from_promise(*this)};
|
||||
}
|
||||
auto yield_value(const std::decay_t<T> &t){
|
||||
std::cout<<__FUNCTION__<<' '<<t<<'\n';
|
||||
return std::suspend_always{};
|
||||
}
|
||||
coroutine<T> h;
|
||||
};
|
||||
|
||||
|
||||
|
||||
coroutine<int> test(){
|
||||
RAII raii("in test");
|
||||
std::cout<<"testing\n";
|
||||
co_yield 1;
|
||||
co_yield 2;
|
||||
co_return 0;
|
||||
}
|
||||
|
||||
int main(){
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
auto handle = test();
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
while (!handle.done()) {
|
||||
handle.resume();
|
||||
std::cout<<__FUNCTION__<<'\n';
|
||||
}
|
||||
handle.destroy();//如果不destroy()那么~RAII in promise将不会显示，也不能将destroy()交给~Promise()管理，也不会~RAII in promise
|
||||
}
|
||||
173
src/web.cpp
Normal file
173
src/web.cpp
Normal file
@ -0,0 +1,173 @@
|
||||
#include <iostream>
|
||||
#include <strings.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/epoll.h>
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/inet.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
|
||||
using namespace std;
|
||||
|
||||
#define MAXLINE 5
|
||||
#define OPEN_MAX 100
|
||||
#define LISTENQ 20
|
||||
#define SERV_PORT 5000
|
||||
#define INFTIM 1000
|
||||
|
||||
void setnonblocking(int sock)
|
||||
{
|
||||
int opts;
|
||||
opts=fcntl(sock,F_GETFL);
|
||||
if(opts<0)
|
||||
{
|
||||
perror("fcntl(sock,GETFL)");
|
||||
exit(1);
|
||||
}
|
||||
opts = opts|O_NONBLOCK;
|
||||
if(fcntl(sock,F_SETFL,opts)<0)
|
||||
{
|
||||
perror("fcntl(sock,SETFL,opts)");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
int i, maxi, listenfd, connfd, sockfd,epfd,nfds, portnumber;
|
||||
ssize_t n;
|
||||
char line[MAXLINE];
|
||||
socklen_t clilen;
|
||||
|
||||
|
||||
if ( 2 == argc )
|
||||
{
|
||||
if( (portnumber = atoi(argv[1])) < 0 )
|
||||
{
|
||||
fprintf(stderr,"Usage:%s portnumber/a/n",argv[0]);
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr,"Usage:%s portnumber/a/n",argv[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
|
||||
//声明epoll_event结构体的变量,ev用于注册事件,数组用于回传要处理的事件
|
||||
|
||||
struct epoll_event ev,events[20];
|
||||
//生成用于处理accept的epoll专用的文件描述符
|
||||
|
||||
epfd=epoll_create(256);
|
||||
struct sockaddr_in clientaddr;
|
||||
struct sockaddr_in serveraddr;
|
||||
listenfd = socket(AF_INET, SOCK_STREAM, 0);
|
||||
//把socket设置为非阻塞方式
|
||||
|
||||
//setnonblocking(listenfd);
|
||||
|
||||
//设置与要处理的事件相关的文件描述符
|
||||
|
||||
ev.data.fd=listenfd;
|
||||
//设置要处理的事件类型
|
||||
|
||||
ev.events=EPOLLIN|EPOLLET;
|
||||
//ev.events=EPOLLIN;
|
||||
|
||||
//注册epoll事件
|
||||
|
||||
epoll_ctl(epfd,EPOLL_CTL_ADD,listenfd,&ev);
|
||||
bzero(&serveraddr, sizeof(serveraddr));
|
||||
serveraddr.sin_family = AF_INET;
|
||||
char *local_addr="127.0.0.1";
|
||||
inet_aton(local_addr,&(serveraddr.sin_addr));//htons(portnumber);
|
||||
|
||||
serveraddr.sin_port=htons(portnumber);
|
||||
bind(listenfd,(sockaddr *)&serveraddr, sizeof(serveraddr));
|
||||
listen(listenfd, LISTENQ);
|
||||
maxi = 0;
|
||||
for ( ; ; ) {
|
||||
//等待epoll事件的发生
|
||||
|
||||
nfds=epoll_wait(epfd,events,20,500);
|
||||
//处理所发生的所有事件
|
||||
|
||||
for(i=0;i<nfds;++i)
|
||||
{
|
||||
if(events[i].data.fd==listenfd)//如果新监测到一个SOCKET用户连接到了绑定的SOCKET端口，建立新的连接。
|
||||
|
||||
{
|
||||
connfd = accept(listenfd,(sockaddr *)&clientaddr, &clilen);
|
||||
if(connfd<0){
|
||||
perror("connfd<0");
|
||||
exit(1);
|
||||
}
|
||||
//setnonblocking(connfd);
|
||||
|
||||
char *str = inet_ntoa(clientaddr.sin_addr);
|
||||
cout << "accapt a connection from " << str << endl;
|
||||
//设置用于读操作的文件描述符
|
||||
|
||||
ev.data.fd=connfd;
|
||||
//设置用于注测的读操作事件
|
||||
|
||||
ev.events=EPOLLIN|EPOLLET;
|
||||
//ev.events=EPOLLIN;
|
||||
|
||||
//注册ev
|
||||
|
||||
epoll_ctl(epfd,EPOLL_CTL_ADD,connfd,&ev);
|
||||
}
|
||||
else if(events[i].events&EPOLLIN)//如果是已经连接的用户，并且收到数据，那么进行读入。
|
||||
|
||||
{
|
||||
cout << "EPOLLIN" << endl;
|
||||
if ( (sockfd = events[i].data.fd) < 0)
|
||||
continue;
|
||||
if ( (n = read(sockfd, line, MAXLINE)) < 0) {
|
||||
if (errno == ECONNRESET) {
|
||||
close(sockfd);
|
||||
events[i].data.fd = -1;
|
||||
} else
|
||||
std::cout<<"readline error"<<std::endl;
|
||||
} else if (n == 0) {
|
||||
close(sockfd);
|
||||
events[i].data.fd = -1;
|
||||
}
|
||||
line[n] = '/0';
|
||||
cout << "read " << line << endl;
|
||||
//设置用于写操作的文件描述符
|
||||
|
||||
ev.data.fd=sockfd;
|
||||
//设置用于注测的写操作事件
|
||||
|
||||
ev.events=EPOLLOUT|EPOLLET;
|
||||
//修改sockfd上要处理的事件为EPOLLOUT
|
||||
|
||||
//epoll_ctl(epfd,EPOLL_CTL_MOD,sockfd,&ev);
|
||||
|
||||
}
|
||||
else if(events[i].events&EPOLLOUT) // 如果有数据发送
|
||||
|
||||
{
|
||||
sockfd = events[i].data.fd;
|
||||
write(sockfd, line, n);
|
||||
//设置用于读操作的文件描述符
|
||||
|
||||
ev.data.fd=sockfd;
|
||||
//设置用于注测的读操作事件
|
||||
|
||||
ev.events=EPOLLIN|EPOLLET;
|
||||
//修改sockfd上要处理的事件为EPOLIN
|
||||
|
||||
epoll_ctl(epfd,EPOLL_CTL_MOD,sockfd,&ev);
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user