mirror of
https://gitee.com/acl-dev/acl.git
synced 2024-12-14 17:00:52 +08:00
444 lines
10 KiB
C++
444 lines
10 KiB
C++
#include <iostream>
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#include <assert.h>
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#include "lib_acl.h"
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#include "../../util.h"
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#include "acl_cpp/lib_acl.hpp"
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typedef struct
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{
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acl::aio_handle* handle;
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char addr[64];
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int connect_timeout;
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int read_timeout;
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int nopen_limit;
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int nopen_total;
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int nwrite_limit;
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int nwrite_total;
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int nread_total;
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int id_begin;
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int dlen;
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} IO_CTX;
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static bool connect_server(acl::sslbase_conf* ssl_conf, IO_CTX* ctx, int id);
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/**
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* 客户端异步连接流回调函数类
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*/
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class client_io_callback : public acl::aio_open_callback
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{
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public:
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/**
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* 构造函数
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* @param client {aio_socket_stream*} 异步连接流
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* @param ssl_conf {acl::sslbase_conf*} 非空时指定 SSL 连接方式
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* @param ctx {IO_CTX*}
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* @param id {int} 本流的ID号
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*/
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client_io_callback(acl::aio_socket_stream* client,
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acl::sslbase_conf* ssl_conf, IO_CTX* ctx, int id)
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: client_(client)
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, ssl_conf_(ssl_conf)
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, ctx_(ctx)
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, nwrite_(0)
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, nread_(0)
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, id_(id)
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{
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dlen_ = ctx->dlen;
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buff_ = (char*) malloc(dlen_);
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memset(buff_, 'x', dlen_);
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buff_[dlen_ - 1] = '\n';
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buff_[dlen_ - 2] = '\r';
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}
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~client_io_callback()
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{
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std::cout << ">>>ID: " << id_
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<< ", io_callback deleted now!" << std::endl;
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free(buff_);
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}
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/**
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* 基类虚函数, 当异步流读到所要求的数据时调用此回调函数
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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} 返回给调用者 true 表示继续，否则表示需要关闭异步流
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*/
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bool read_callback(char*, int len)
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{
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nread_ += len;
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ctx_->nread_total++;
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if (nwrite_ < 100 || nwrite_ % 1000 == 0) {
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char buf[256];
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acl::safe_snprintf(buf, sizeof(buf),
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"current len: %d, total_len: %d, nwrite: %d",
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len, nread_, nwrite_);
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acl::meter_time(__FILE__, __LINE__, buf);
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}
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write_line();
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return true;
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}
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/**
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* 基类虚函数, 当异步流写成功时调用此回调函数
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* @return {bool} 返回给调用者 true 表示继续，否则表示需要关闭异步流
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*/
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bool write_callback()
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{
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ctx_->nwrite_total++;
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nwrite_++;
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return true;
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}
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/**
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* 基类虚函数, 当该异步流关闭时调用此回调函数
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*/
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void close_callback()
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{
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if (!client_->is_opened()) {
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std::cout << "Id: " << id_ << " connect "
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<< ctx_->addr << " error: "
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<< acl::last_serror();
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// 如果是第一次连接就失败，则退出
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if (ctx_->nopen_total == 0) {
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std::cout << ", first connect error, quit";
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/* 获得异步引擎句柄，并设置为退出状态 */
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client_->get_handle().stop();
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}
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std::cout << std::endl;
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delete this;
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return;
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}
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/* 获得异步引擎中受监控的异步流个数 */
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int nleft = client_->get_handle().length();
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if (ctx_->nopen_total == ctx_->nopen_limit && nleft == 1) {
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std::cout << "Id: " << id_ << " stop now! nstream: "
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<< nleft << std::endl;
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/* 获得异步引擎句柄，并设置为退出状态 */
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client_->get_handle().stop();
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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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* 基类虚函数，当异步流超时时调用此函数
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* @return {bool} 返回给调用者 true 表示继续，否则表示需要关闭异步流
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*/
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bool timeout_callback()
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{
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std::cout << "Connect " << ctx_->addr
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<< " Timeout ..." << std::endl;
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client_->close();
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return false;
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}
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bool read_wakeup()
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{
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// 取得之前通过 setup_hook 注册的 SSL IO句柄
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acl::sslbase_io* hook = (acl::sslbase_io*) client_->get_hook();
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if (hook == NULL) {
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std::cout << "get hook error"<< std::endl;
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return false;
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}
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// 尝试进行 SSL 握手
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if (!hook->handshake()) {
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logger_error("ssl handshake failed");
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return false;
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}
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// SSL 握手还未完成，等待本函数再次被触发
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if (!hook->handshake_ok()) {
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return true;
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}
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// 如果 SSL 握手已经成功，则开始读数据
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printf("ssl handshake ok\r\n");
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// 由 reactor 模式转为 proactor 模式，从而取消
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// read_wakeup 回调过程
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client_->disable_read();
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// 开始与服务端的读写过程
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return begin_run();
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}
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/**
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* 基类虚函数, 当异步连接成功后调用此函数
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* @return {bool} 返回给调用者 true 表示继续，否则表示需要关闭异步流
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*/
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bool open_callback()
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{
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// 连接成功，设置IO读写回调函数
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client_->add_read_callback(this);
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client_->add_write_callback(this);
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ctx_->nopen_total++;
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acl::assert_(id_ > 0);
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if (ctx_->nopen_total < ctx_->nopen_limit) {
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// 开始进行下一个连接过程
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if (!connect_server(ssl_conf_, ctx_, id_ + 1)) {
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std::cout << "connect error!" << std::endl;
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}
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}
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// 设置 SSL 方式
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if (ssl_conf_) {
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return setup_ssl(*ssl_conf_);
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}
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// 开始与服务端的读写过程
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else {
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return begin_run();
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}
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}
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private:
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acl::aio_socket_stream* client_;
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acl::sslbase_conf* ssl_conf_;
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IO_CTX* ctx_;
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int nwrite_;
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int nread_;
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int id_;
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char *buff_;
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int dlen_;
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bool setup_ssl(acl::sslbase_conf& ssl_conf)
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{
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acl::sslbase_io* ssl = ssl_conf.open(false, true);
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// 将 SSL IO 过程注册至异步流中
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if (client_->setup_hook(ssl) == ssl) {
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std::cout << "open ssl error!" << std::endl;
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ssl->destroy();
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return false;
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}
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// 开始 SSL 握手过程
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if (!ssl->handshake()) {
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client_->remove_hook();
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ssl->destroy();
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return false;
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}
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// 开始异步 SSL 握手过程，满足可读条件时将触发 read_wakeup
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client_->read_wait(10);
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return true;
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}
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bool begin_run(void)
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{
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write_line();
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// 异步从服务器读取数据
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//client_->read();
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client_->gets(10, false);
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return true;
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}
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void write_line(void)
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{
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// 异步向服务器发送数据
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client_->write(buff_, dlen_);
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if (nwrite_ >= ctx_->nwrite_limit) {
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client_->close();
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}
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}
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};
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static bool connect_server(acl::sslbase_conf* ssl_conf, IO_CTX* ctx, int id)
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{
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// 开始异步连接远程服务器
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acl::aio_socket_stream* stream = acl::aio_socket_stream::open(
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ctx->handle, ctx->addr, ctx->connect_timeout);
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if (stream == NULL)
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{
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std::cout << "connect " << ctx->addr << " error!" << std::endl;
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std::cout << "stoping ..." << std::endl;
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if (id == 0) {
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ctx->handle->stop();
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}
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return false;
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}
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acl_non_blocking(stream->sock_handle(), ACL_BLOCKING);
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// 创建连接后的回调函数类
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client_io_callback* callback = new
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client_io_callback(stream, ssl_conf, ctx, id);
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// 添加连接成功的回调函数类
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stream->add_open_callback(callback);
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// 添加连接失败后回调函数类
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stream->add_close_callback(callback);
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// 添加连接超时的回调函数类
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stream->add_timeout_callback(callback);
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return true;
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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] -l server_addr \r\n"
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" -d path_to_polarssl\r\n"
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" -c nconnect\r\n"
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" -n io_max\r\n"
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" -k[use kernel event: epoll/kqueue/devpoll\r\n"
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" -I check_fds_inter\r\n"
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" -M delay_ms\r\n"
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" -t connect_timeout\r\n"
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" -S[use_ssl]\r\n"
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" -L data_len[default: 8193]\n", 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, use_ssl = false;
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IO_CTX ctx;
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acl::string libpath("../libpolarssl.so");
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acl::sslbase_conf* ssl_conf = NULL;
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int ch;
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int check_fds_inter = 10, delay_ms = 100;
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memset(&ctx, 0, sizeof(ctx));
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ctx.connect_timeout = 5;
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ctx.nopen_limit = 1;
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ctx.id_begin = 1;
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ctx.nwrite_limit = 1;
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ctx.dlen = 8193;
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acl::safe_snprintf(ctx.addr, sizeof(ctx.addr), "127.0.0.1:9800");
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while ((ch = getopt(argc, argv, "hd:c:n:kl:t:SL:I:M:")) > 0) {
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switch (ch) {
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case 'c':
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ctx.nopen_limit = atoi(optarg);
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if (ctx.nopen_limit <= 0) {
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ctx.nopen_limit = 10;
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}
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break;
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case 'd':
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libpath = optarg;
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break;
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case 'n':
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ctx.nwrite_limit = atoi(optarg);
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if (ctx.nwrite_limit <= 0) {
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ctx.nwrite_limit = 10;
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}
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break;
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case 'h':
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usage(argv[0]);
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return 0;
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case 'k':
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use_kernel = true;
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break;
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case 'l':
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acl::safe_snprintf(ctx.addr, sizeof(ctx.addr), "%s", optarg);
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break;
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case 't':
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ctx.connect_timeout = atoi(optarg);
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break;
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case 'S':
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use_ssl = true;
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break;
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case 'L':
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ctx.dlen = atoi(optarg);
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break;
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case 'I':
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check_fds_inter = atoi(optarg);
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break;
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case 'M':
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delay_ms = atoi(optarg);
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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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acl::meter_time(__FUNCTION__, __LINE__, "-----BEGIN-----");
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acl::acl_cpp_init();
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acl::log::stdout_open(true);
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acl::aio_handle handle(use_kernel ? acl::ENGINE_KERNEL : acl::ENGINE_SELECT);
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handle.set_check_inter(check_fds_inter);
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int delay_sec = delay_ms / 1000;
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int delay_usec = (delay_ms - delay_sec * 1000) * 1000;
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handle.set_delay_sec(delay_sec);
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handle.set_delay_usec(delay_usec);
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printf(">>>delay_sec: %d, delay_usec: %d, check_fds_inter: %d\r\n",
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delay_sec, delay_usec, check_fds_inter);
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printf("Enter any key to continue ...\r\n");
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getchar();
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if (use_ssl) {
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if (libpath.find("mbedtls") != NULL) {
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const std::vector<acl::string>& libs = libpath.split2(";");
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if (libs.size() != 3) {
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printf("invalid libpath=%s\r\n", libpath.c_str());
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return 1;
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}
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acl::mbedtls_conf::set_libpath(libs[0], libs[1], libs[2]);
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if (acl::mbedtls_conf::load()) {
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ssl_conf = new acl::mbedtls_conf(false);
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} else {
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printf("load %s error\r\n", libpath.c_str());
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}
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} else if (libpath.find("polarssl") != NULL) {
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acl::polarssl_conf::set_libpath(libpath);
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if (acl::polarssl_conf::load()) {
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ssl_conf = new acl::polarssl_conf;
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} else {
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printf("load %s error\r\n", libpath.c_str());
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}
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}
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}
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ctx.handle = &handle;
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if (!connect_server(ssl_conf, &ctx, ctx.id_begin)) {
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std::cout << "enter any key to exit." << std::endl;
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getchar();
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return 1;
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}
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std::cout << "Connect " << ctx.addr << " ..." << std::endl;
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struct timeval begin;
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gettimeofday(&begin, NULL);
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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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break;
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}
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}
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struct timeval end;
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gettimeofday(&end, NULL);
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double spent = util::stamp_sub(&end, &begin);
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printf("total open: %d, total write: %d, total read: %d,"
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" spent: %.2f ms, speed: %.2f\r\n",
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ctx.nopen_total, ctx.nwrite_total, ctx.nread_total,
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spent, (ctx.nread_total * 1000) / (spent > 1 ? spent : 1));
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delete ssl_conf;
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return 0;
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}
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