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https://gitee.com/acl-dev/acl.git
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9697f95b8f
This reverts commit 15d999759e
.
185 lines
3.9 KiB
C++
185 lines
3.9 KiB
C++
#include <iostream>
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#include <assert.h>
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#include "lib_acl.h"
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#include "acl_cpp/lib_acl.hpp"
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#include "acl_cpp/stream/aio_istream.hpp"
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#include "acl_cpp/stream/aio_listen_stream.hpp"
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#include "acl_cpp/stream/aio_socket_stream.hpp"
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/**
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* 异步客户端流的回调类的子类
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*/
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class io_callback : public acl::aio_callback
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{
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public:
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io_callback(acl::aio_socket_stream* client)
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: client_(client)
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{
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}
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private:
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~io_callback(void)
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{
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std::cout << "delete io_callback now ..." << std::endl;
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}
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public:
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/**
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* 实现父类中的虚函数,客户端流的读成功回调过程
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* @param data {char*} 读到的数据地址
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* @param len {int} 读到的数据长度
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* @return {bool} 返回 true 表示继续,否则希望关闭该异步流
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*/
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bool read_callback(char* data, int len)
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{
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// 向远程客户端回写收到的数据
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client_->write(data, len);
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return true;
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}
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/**
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* 实现父类中的虚函数,客户端流的写成功回调过程
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* @return {bool} 返回 true 表示继续,否则希望关闭该异步流
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*/
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bool write_callback(void)
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{
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return true;
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}
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/**
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* 实现父类中的虚函数,客户端流的超时回调过程
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*/
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void close_callback(void)
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{
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// 必须在此处删除该动态分配的回调类对象以防止内存泄露
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delete this;
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}
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/**
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* 实现父类中的虚函数,客户端流的超时回调过程
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* @return {bool} 返回 true 表示继续,否则希望关闭该异步流
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*/
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bool timeout_callback(void)
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{
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std::cout << "Timeout ..." << std::endl;
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return true;
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}
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private:
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acl::aio_socket_stream* client_;
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};
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/**
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* 异步监听流的回调类的子类
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*/
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class io_accept_callback : public acl::aio_accept_callback
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{
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public:
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io_accept_callback(void) {}
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~io_accept_callback(void)
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{
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printf(">>io_accept_callback over!\n");
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}
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/**
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* 基类虚函数,当有新连接到达后调用此回调过程
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* @param client {aio_socket_stream*} 异步客户端流
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* @return {bool} 返回 true 以通知监听流继续监听
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*/
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bool accept_callback(acl::aio_socket_stream* client)
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{
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// 创建异步客户端流的回调对象并与该异步流进行绑定
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io_callback* callback = new io_callback(client);
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// 注册异步流的读回调过程
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client->add_read_callback(callback);
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// 注册异步流的写回调过程
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client->add_write_callback(callback);
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// 注册异步流的关闭回调过程
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client->add_close_callback(callback);
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// 注册异步流的超时回调过程
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client->add_timeout_callback(callback);
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// 从异步流读数据
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int count = 0, timeout = 10;
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client->read(count, timeout);
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return true;
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}
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};
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static void usage(const char* procname)
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{
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printf("usage: %s -h[help]\r\n"
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" -s listen_addr\r\n"
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" -k[use kernel event: epoll/iocp/kqueue/devpool]\n",
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procname);
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}
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int main(int argc, char* argv[])
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{
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bool use_kernel = false;
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acl::string addr("127.0.0.1:9001");
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int ch;
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while ((ch = getopt(argc, argv, "hks:")) > 0) {
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switch (ch) {
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case 'h':
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usage(argv[0]);
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return 0;
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case 's':
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addr = optarg;
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break;
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case 'k':
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use_kernel = true;
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break;
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default:
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break;
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}
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}
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// 初始化ACL库(尤其是在WIN32下一定要调用此函数,在UNIX平台下可不调用)
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acl::acl_cpp_init();
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// 构建异步引擎类对象
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acl::aio_handle handle(use_kernel ? acl::ENGINE_KERNEL : acl::ENGINE_SELECT);
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// 创建监听异步流
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acl::aio_listen_stream* sstream = new acl::aio_listen_stream(&handle);
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// 监听指定的地址
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if (!sstream->open(addr)) {
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std::cout << "open " << addr.c_str() << " error!" << std::endl;
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sstream->close();
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// XXX: 为了保证能关闭监听流,应在此处再 check 一下
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handle.check();
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getchar();
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return 1;
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}
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// 创建回调类对象,当有新连接到达时自动调用此类对象的回调过程
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io_accept_callback callback;
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sstream->add_accept_callback(&callback);
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std::cout << "Listen: " << addr.c_str() << " ok!" << std::endl;
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while (true) {
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// 如果返回 false 则表示不再继续,需要退出
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if (!handle.check()) {
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std::cout << "aio_server stop now ..." << std::endl;
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break;
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}
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}
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// 关闭监听流并释放流对象
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sstream->close();
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// XXX: 为了保证能关闭监听流,应在此处再 check 一下
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handle.check();
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return 0;
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}
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