#include #include #include "lib_acl.h" #include "acl_cpp/lib_acl.hpp" #include "ssl_aio_stream.hpp" #ifdef WIN32 # ifndef snprintf # define snprintf _snprintf # endif #endif using namespace acl; typedef struct { char addr[64]; aio_handle* handle; int connect_timeout; int read_timeout; int nopen_limit; int nopen_total; int nwrite_limit; int nwrite_total; int nread_total; int id_begin; bool debug; } IO_CTX; static bool connect_ssl_server(IO_CTX* ctx, int id); /** * 客户端异步连接流回调函数类 */ class ssl_io_callback : public aio_open_callback { public: /** * 构造函数 * @param ctx {IO_CTX*} * @param client {ssl_aio_stream*} 异步连接流 * @param id {int} 本流的ID号 */ ssl_io_callback(IO_CTX* ctx, ssl_aio_stream* client, int id) : client_(client) , ctx_(ctx) , nwrite_(0) , id_(id) { } ~ssl_io_callback() { std::cout << ">>>ID: " << id_ << ", ssl_io_callback deleted now!" << std::endl; } /** * 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 * @param data {char*} 读到的数据地址 * @param len {int} 读到的数据长度 * @return {bool} 返回给调用者 true 表示继续,否则表示需要关闭异步流 */ bool read_callback(char* data, int len) { string buf(data, len); ctx_->nread_total++; std::cout << buf.c_str(); return (true); } /** * 基类虚函数, 当异步流写成功时调用此回调函数 * @return {bool} 返回给调用者 true 表示继续,否则表示需要关闭异步流 */ bool write_callback() { ctx_->nwrite_total++; nwrite_++; return (true); } /** * 基类虚函数, 当该异步流关闭时调用此回调函数 */ void close_callback() { if (client_->is_opened() == false) { std::cout << "Id: " << id_ << " connect " << ctx_->addr << " error" << std::endl; // 如果是第一次连接就失败,则退出 if (ctx_->nopen_total == 0) { std::cout << ", first connect error, quit"; /* 获得异步引擎句柄,并设置为退出状态 */ client_->get_handle().stop(); } std::cout << std::endl; delete this; return; } /* 获得异步引擎中受监控的异步流个数 */ int nleft = client_->get_handle().length(); if (ctx_->nopen_total == ctx_->nopen_limit && nleft == 1) { std::cout << "Id: " << id_ << " stop now! nstream: " << nleft << std::endl; /* 获得异步引擎句柄,并设置为退出状态 */ client_->get_handle().stop(); } // 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 delete this; } /** * 基类虚函数,当异步流超时时调用此函数 * @return {bool} 返回给调用者 true 表示继续,否则表示需要关闭异步流 */ bool timeout_callback() { std::cout << "Connect " << ctx_->addr << " Timeout ..." << std::endl; client_->close(); return (false); } /** * 基类虚函数, 当异步连接成功后调用此函数 * @return {bool} 返回给调用者 true 表示继续,否则表示需要关闭异步流 */ bool open_callback() { // 连接成功,设置IO读写回调函数 client_->add_read_callback(this); client_->add_write_callback(this); ctx_->nopen_total++; assert(id_ > 0); if (ctx_->nopen_total < ctx_->nopen_limit) { // 开始进行下一个连接过程 if (connect_ssl_server(ctx_, id_ + 1) == false) std::cout << "connect error!" << std::endl; } http_header header; header.set_url("https://www.google.com.hk/"); header.set_host("www.google.com.hk"); header.set_keep_alive(false); string buf; (void) header.build_request(buf); // 异步向服务器发送数据 client_->write(buf.c_str(), (int) buf.length()); // 异步从服务器读取一行数据 client_->gets(ctx_->read_timeout, false); // 表示继续异步过程 return (true); } protected: private: ssl_aio_stream* client_; IO_CTX* ctx_; int nwrite_; int id_; }; static bool connect_ssl_server(IO_CTX* ctx, int id) { // 开始异步连接远程服务器 ssl_aio_stream* stream = ssl_aio_stream::open(ctx->handle, ctx->addr, ctx->connect_timeout, true); if (stream == NULL) { std::cout << "connect " << ctx->addr << " error!" << std::endl; std::cout << "stoping ..." << std::endl; if (id == 0) ctx->handle->stop(); return (false); } // 创建连接后的回调函数类 ssl_io_callback* callback = new ssl_io_callback(ctx, stream, id); // 添加连接成功的回调函数类 stream->add_open_callback(callback); // 添加连接失败后回调函数类 stream->add_close_callback(callback); // 添加连接超时的回调函数类 stream->add_timeout_callback(callback); return (true); } static void usage(const char* procname) { printf("usage: %s -h[help] -l server_addr -c nconnect" " -n io_max -k[use kernel event: epoll/kqueue/devpoll" " -t connect_timeout -d[debug]\n", procname); } int main(int argc, char* argv[]) { bool use_kernel = false; int ch; IO_CTX ctx; memset(&ctx, 0, sizeof(ctx)); ctx.connect_timeout = 500; ctx.nopen_limit = 10; ctx.id_begin = 1; ctx.nwrite_limit = 10; ctx.debug = false; //snprintf(ctx.addr, sizeof(ctx.addr), "74.125.71.19:443"); //snprintf(ctx.addr, sizeof(ctx.addr), "www.google.com.hk:443"); snprintf(ctx.addr, sizeof(ctx.addr), "mail.sina.com.cn:443"); while ((ch = getopt(argc, argv, "hc:n:kl:dt:")) > 0) { switch (ch) { case 'c': ctx.nopen_limit = atoi(optarg); if (ctx.nopen_limit <= 0) ctx.nopen_limit = 10; break; case 'n': ctx.nwrite_limit = atoi(optarg); if (ctx.nwrite_limit <= 0) ctx.nwrite_limit = 10; break; case 'h': usage(argv[0]); return (0); case 'k': use_kernel = true; break; case 'l': snprintf(ctx.addr, sizeof(ctx.addr), "%s", optarg); break; case 'd': ctx.debug = true; break; case 't': ctx.connect_timeout = atoi(optarg); break; default: break; } } ACL_METER_TIME("-----BEGIN-----"); acl::acl_cpp_init(); aio_handle handle(use_kernel ? ENGINE_KERNEL : ENGINE_SELECT); ctx.handle = &handle; if (connect_ssl_server(&ctx, ctx.id_begin) == false) { std::cout << "enter any key to exit." << std::endl; getchar(); return (1); } std::cout << "Connect " << ctx.addr << " ..." << std::endl; while (true) { // 如果返回 false 则表示不再继续,需要退出 if (handle.check() == false) break; //std::cout << ">>> Loop Check ..." << std::endl; } acl::string buf; buf << "total open: " << ctx.nopen_total << ", total write: " << ctx.nwrite_total << ", total read: " << ctx.nread_total; ACL_METER_TIME(buf.c_str()); std::cout << "enter any key to exit." << std::endl; getchar(); return (0); }