mirror of
https://gitee.com/acl-dev/acl.git
synced 2024-12-14 00:40:55 +08:00
9697f95b8f
This reverts commit 15d999759e
.
392 lines
8.8 KiB
C++
392 lines
8.8 KiB
C++
#include <iostream>
|
||
#include <assert.h>
|
||
#include "lib_acl.h"
|
||
#include "acl_cpp/stdlib/util.hpp"
|
||
#include "acl_cpp/stdlib/snprintf.hpp"
|
||
#include "acl_cpp/acl_cpp_init.hpp"
|
||
#include "acl_cpp/stdlib/log.hpp"
|
||
#include "acl_cpp/stream/polarssl_conf.hpp"
|
||
#include "acl_cpp/stream/polarssl_io.hpp"
|
||
#include "acl_cpp/stream/aio_handle.hpp"
|
||
#include "acl_cpp/stream/aio_istream.hpp"
|
||
#include "acl_cpp/stream/aio_listen_stream.hpp"
|
||
#include "acl_cpp/stream/aio_socket_stream.hpp"
|
||
|
||
static int __max = 0;
|
||
static int __timeout = 0;
|
||
static int __max_used = 0;
|
||
static int __cur_used = 0;
|
||
|
||
// SSL 模式下的 SSL 配置对象
|
||
static acl::polarssl_conf* __ssl_conf;
|
||
|
||
/**
|
||
* 异步客户端流的回调类的子类
|
||
*/
|
||
class io_callback : public acl::aio_callback
|
||
{
|
||
public:
|
||
io_callback(acl::aio_socket_stream* client)
|
||
: client_(client)
|
||
, nread_cnt_(0)
|
||
, nread_(0)
|
||
{
|
||
}
|
||
|
||
~io_callback()
|
||
{
|
||
printf("delete io_callback now ...\r\n");
|
||
__cur_used++;
|
||
}
|
||
|
||
/**
|
||
* 读回调虚函数,该回调函数当满足了类 aio_istream 实例中的
|
||
* gets/read 的可读条件后被调用,由异步框架内部将符合条件的数
|
||
* 据读出,直接传递给用户的子类
|
||
* @param data {char*} 读到的数据的指针地址
|
||
* @param len {int} 读到的数据长度(> 0)
|
||
* @return {bool} 该函数返回 false 通知异步引擎关闭该异步流
|
||
*/
|
||
bool read_wakeup()
|
||
{
|
||
acl::polarssl_io* hook = (acl::polarssl_io*) client_->get_hook();
|
||
if (hook == NULL)
|
||
{
|
||
// 非 SSL 模式,异步读取数据
|
||
//client_->read(__timeout);
|
||
client_->gets(__timeout, false);
|
||
return true;
|
||
}
|
||
|
||
// 尝试进行 SSL 握手
|
||
if (hook->handshake() == false)
|
||
{
|
||
printf("ssl handshake failed\r\n");
|
||
return false;
|
||
}
|
||
|
||
// 如果 SSL 握手已经成功,则开始按行读数据
|
||
if (hook->handshake_ok())
|
||
{
|
||
// 由 reactor 模式转为 proactor 模式,从而取消
|
||
// read_wakeup 回调过程
|
||
client_->disable_read();
|
||
|
||
// 异步读取数据,将会回调 read_callback
|
||
//client_->read(__timeout);
|
||
client_->gets(__timeout, false);
|
||
return true;
|
||
}
|
||
|
||
// SSL 握手还未完成,等待本函数再次被触发
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 实现父类中的虚函数,客户端流的读成功回调过程
|
||
* @param data {char*} 读到的数据地址
|
||
* @param len {int} 读到的数据长度
|
||
* @return {bool} 返回 true 表示继续,否则希望关闭该异步流
|
||
*/
|
||
bool read_callback(char* data, int len)
|
||
{
|
||
nread_cnt_++;
|
||
nread_ += len;
|
||
|
||
if (nread_cnt_ <= 100 || nread_cnt_ % 1000 == 0)
|
||
{
|
||
char buf[256];
|
||
acl::safe_snprintf(buf, sizeof(buf),
|
||
"read len: %d, total read: %d, nread_cnt: %d",
|
||
len, nread_, nread_cnt_);
|
||
acl::meter_time(__FILE__, __LINE__, buf);
|
||
}
|
||
|
||
// 如果远程客户端希望退出,则关闭之
|
||
if (strncasecmp(data, "quit", 4) == 0)
|
||
{
|
||
client_->format("Bye!\r\n");
|
||
client_->close();
|
||
return true;
|
||
}
|
||
|
||
// 如果远程客户端希望服务端也关闭,则中止异步事件过程
|
||
if (strncasecmp(data, "stop", 4) == 0)
|
||
{
|
||
client_->format("Stop now!\r\n");
|
||
client_->close(); // 关闭远程异步流
|
||
|
||
// 通知异步引擎关闭循环过程
|
||
client_->get_handle().stop();
|
||
}
|
||
|
||
// 向远程客户端回写收到的数据
|
||
|
||
client_->write(data, len);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 实现父类中的虚函数,客户端流的写成功回调过程
|
||
* @return {bool} 返回 true 表示继续,否则希望关闭该异步流
|
||
*/
|
||
bool write_callback()
|
||
{
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 实现父类中的虚函数,客户端流的超时回调过程
|
||
*/
|
||
void close_callback()
|
||
{
|
||
// 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;
|
||
}
|
||
|
||
/**
|
||
* 实现父类中的虚函数,客户端流的超时回调过程
|
||
* @return {bool} 返回 true 表示继续,否则希望关闭该异步流
|
||
*/
|
||
bool timeout_callback()
|
||
{
|
||
std::cout << "Timeout, delete it ..." << std::endl;
|
||
return false;
|
||
}
|
||
|
||
private:
|
||
acl::aio_socket_stream* client_;
|
||
int nread_cnt_;
|
||
int nread_;
|
||
};
|
||
|
||
/**
|
||
* 异步监听流的回调类的子类
|
||
*/
|
||
class io_accept_callback : public acl::aio_accept_callback
|
||
{
|
||
public:
|
||
io_accept_callback() {}
|
||
~io_accept_callback()
|
||
{
|
||
printf(">>io_accept_callback over!\n");
|
||
}
|
||
|
||
/**
|
||
* 基类虚函数,当有新连接到达后调用此回调过程
|
||
* @param client {aio_socket_stream*} 异步客户端流
|
||
* @return {bool} 返回 true 以通知监听流继续监听
|
||
*/
|
||
bool accept_callback(acl::aio_socket_stream* client)
|
||
{
|
||
//acl_non_blocking(client->sock_handle(), ACL_BLOCKING);
|
||
|
||
// 创建异步客户端流的回调对象并与该异步流进行绑定
|
||
io_callback* callback = new io_callback(client);
|
||
|
||
// 注册异步流的读回调过程
|
||
client->add_read_callback(callback);
|
||
|
||
// 注册异步流的写回调过程
|
||
client->add_write_callback(callback);
|
||
|
||
// 注册异步流的关闭回调过程
|
||
client->add_close_callback(callback);
|
||
|
||
// 注册异步流的超时回调过程
|
||
client->add_timeout_callback(callback);
|
||
|
||
// 当限定了行数据最大长度时
|
||
if (__max > 0)
|
||
client->set_buf_max(__max);
|
||
|
||
// SSL 模式下,等待客户端发送握手信息
|
||
if (__ssl_conf != NULL)
|
||
{
|
||
// 注册 SSL IO 过程的钩子
|
||
acl::polarssl_io* ssl = new
|
||
acl::polarssl_io(*__ssl_conf, true, true);
|
||
|
||
if (client->setup_hook(ssl) == ssl)
|
||
{
|
||
std::cout << "setup_hook error" << std::endl;
|
||
ssl->destroy();
|
||
return false;
|
||
}
|
||
|
||
// 将客户端置于读监听状态以触发 read_wakeup 回调过程,
|
||
// SSL 握手过程将在 read_wakeup 中完成
|
||
client->read_wait(__timeout);
|
||
}
|
||
|
||
// 非 SSL 模式下,从异步流读一行数据
|
||
else
|
||
{
|
||
//client->read(__timeout);
|
||
client->gets(__timeout, false);
|
||
}
|
||
|
||
return true;
|
||
}
|
||
};
|
||
|
||
static void usage(const char* procname)
|
||
{
|
||
printf("usage: %s -h[help]\r\n"
|
||
" -d path_to_polarssl\r\n"
|
||
" -l server_addr[ip:port, default: 127.0.0.1:9800]\r\n"
|
||
" -L line_max_length\r\n"
|
||
" -t timeout\r\n"
|
||
" -n conn_used_limit\r\n"
|
||
" -k[use kernel event: epoll/iocp/kqueue/devpool]\r\n"
|
||
" -M delay_ms\r\n"
|
||
" -I check_fds_inter\r\n"
|
||
" -K ssl_key_file -C ssl_cert_file [in SSL mode]\r\n",
|
||
procname);
|
||
}
|
||
|
||
int main(int argc, char* argv[])
|
||
{
|
||
// 事件引擎是否采用内核中的高效模式
|
||
bool use_kernel = false;
|
||
acl::string key_file, cert_file, libpath("../libpolarssl.so");
|
||
acl::string addr("127.0.0.1:9800");
|
||
int ch, delay_ms = 100, check_fds_inter = 10;
|
||
|
||
while ((ch = getopt(argc, argv, "ld::hkL:t:K:C:n:M:I:")) > 0)
|
||
{
|
||
switch (ch)
|
||
{
|
||
case 'h':
|
||
usage(argv[0]);
|
||
return 0;
|
||
case 'd':
|
||
libpath = optarg;
|
||
break;
|
||
case 'l':
|
||
addr = optarg;
|
||
break;
|
||
case 'k':
|
||
use_kernel = true;
|
||
break;
|
||
case 'L':
|
||
__max = atoi(optarg);
|
||
break;
|
||
case 't':
|
||
__timeout = atoi(optarg);
|
||
break;
|
||
case 'K':
|
||
key_file = optarg;
|
||
break;
|
||
case 'C':
|
||
cert_file = optarg;
|
||
break;
|
||
case 'n':
|
||
__max_used = atoi(optarg);
|
||
break;
|
||
case 'M':
|
||
delay_ms = atoi(optarg);
|
||
break;
|
||
case 'I':
|
||
check_fds_inter = atoi(optarg);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
acl::log::stdout_open(true);
|
||
|
||
// 当私钥及证书都存在时才采用 SSL 通信方式
|
||
if (!key_file.empty() && !cert_file.empty())
|
||
{
|
||
__ssl_conf = new acl::polarssl_conf();
|
||
|
||
// 允许服务端的 SSL 会话缓存功能
|
||
__ssl_conf->enable_cache(true);
|
||
|
||
// 添加本地服务的证书
|
||
if (__ssl_conf->add_cert(cert_file.c_str()) == false)
|
||
{
|
||
delete __ssl_conf;
|
||
__ssl_conf = NULL;
|
||
std::cout << "add_cert error: " << cert_file.c_str()
|
||
<< std::endl;
|
||
}
|
||
|
||
// 添加本地服务密钥
|
||
else if (__ssl_conf->set_key(key_file.c_str()) == false)
|
||
{
|
||
delete __ssl_conf;
|
||
__ssl_conf = NULL;
|
||
std::cout << "set_key error: " << key_file.c_str()
|
||
<< std::endl;
|
||
}
|
||
else
|
||
std::cout << "Load cert&key OK!" << std::endl;
|
||
}
|
||
|
||
if (__ssl_conf)
|
||
{
|
||
acl::polarssl_conf::set_libpath(libpath);
|
||
acl::polarssl_conf::load();
|
||
}
|
||
|
||
// 构建异步引擎类对象
|
||
acl::aio_handle handle(use_kernel ? acl::ENGINE_KERNEL : acl::ENGINE_SELECT);
|
||
|
||
handle.set_check_inter(check_fds_inter);
|
||
|
||
int delay_sec = delay_ms / 1000;
|
||
int delay_usec = (delay_ms - delay_sec * 1000) * 1000;
|
||
handle.set_delay_sec(delay_sec);
|
||
handle.set_delay_usec(delay_usec);
|
||
|
||
// 创建监听异步流
|
||
acl::aio_listen_stream* sstream = new acl::aio_listen_stream(&handle);
|
||
|
||
// 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)
|
||
acl::acl_cpp_init();
|
||
|
||
// 监听指定的地址
|
||
if (sstream->open(addr.c_str()) == false)
|
||
{
|
||
std::cout << "open " << addr.c_str() << " error!" << std::endl;
|
||
sstream->close();
|
||
// XXX: 为了保证能关闭监听流,应在此处再 check 一下
|
||
handle.check();
|
||
|
||
getchar();
|
||
return 1;
|
||
}
|
||
|
||
// 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
|
||
io_accept_callback callback;
|
||
sstream->add_accept_callback(&callback);
|
||
std::cout << "Listen: " << addr.c_str() << " ok!" << std::endl;
|
||
|
||
while (true)
|
||
{
|
||
// 如果返回 false 则表示不再继续,需要退出
|
||
if (handle.check() == false)
|
||
{
|
||
std::cout << "aio_server stop now ..." << std::endl;
|
||
break;
|
||
}
|
||
|
||
if (__max_used > 0 && __cur_used >= __max_used)
|
||
break;
|
||
}
|
||
|
||
// 关闭监听流并释放流对象
|
||
sstream->close();
|
||
|
||
// XXX: 为了保证能关闭监听流,应在此处再 check 一下
|
||
handle.check();
|
||
|
||
// 删除 acl::polarssl_conf 动态对象
|
||
delete __ssl_conf;
|
||
|
||
return 0;
|
||
}
|