compile error on g++ (Ubuntu 5.1.0-0ubuntu11~14.04.1) 5.1.0
cd /home/phonzia/cinatra/build/examples/cinatra && g++ -I/home/phonzia/cinatra/examples/cinatra/../../include -std=c++1y -Wall -Wextra -o CMakeFiles/cinatra.dir/main.cpp.o -c /home/phonzia/cinatra/examples/cinatra/main.cpp
In file included from /home/phonzia/cinatra/examples/hello_world/main.cpp:1:0:
/home/phonzia/cinatra/examples/hello_world/../../include/cinatra/cinatra.hpp: In member function ‘T& cinatra::Cinatra::get_middleware()’:
/home/phonzia/cinatra/examples/hello_world/../../include/cinatra/cinatra.hpp:107:28: error: expected primary-expression before ‘>’ token
return aop_.get_aspect();
^
/home/phonzia/cinatra/examples/hello_world/../../include/cinatra/cinatra.hpp:107:30: error: expected primary-expression before ‘)’ token
return aop_.get_aspect();
^
In file included from /home/phonzia/cinatra/examples/cinatra/main.cpp:8:0:
/home/phonzia/cinatra/examples/cinatra/../../include/cinatra/cinatra.hpp: In member function ‘T& cinatra::Cinatra::get_middleware()’:
/home/phonzia/cinatra/examples/cinatra/../../include/cinatra/cinatra.hpp:107:28: error: expected primary-expression before ‘>’ token
return aop_.get_aspect();
^
/home/phonzia/cinatra/examples/cinatra/../../include/cinatra/cinatra.hpp:107:30: error: expected primary-expression before ‘)’ token
return aop_.get_aspect();

ifndef CINATRA_SINGLE_THREAD

    int num_threads_ = 1;

else

    int num_threads_ = std::thread::hardware_concurrency();

endif // CINATRA_SINGLE_THREAD

不知道是否我理解错误了，如果CINATRA_SINGLE_THREAD没定义，不是应该是多线程吗？为什么这里却说#ifndef CINATRA_SINGLE_THREAD, num_threads = 1?

There was an issue in cinatra.hpp
void run()
{
HTTPServer s(num_threads_);
....
...
}

need fixed as below:
void run()
{

ifndef CINATRA_SINGLE_THREAD

HTTPServer s(num_threads_);

else

HTTPServer s;

endif

     ....

}

如题：listen接口能不能支持返回值是否bind端口或者listen成功？实际使用中我们发现端口被占用了，没有任何错误信息提示我们。

如果在每个头文件里加入注释，解释一下每个类的功能，这样会不会让大家理解代码容易一些呢？

能不能加入上传文件支持

Any help?

[ 96%] Built target cinatra_test
2 warnings generated.
[100%] Linking CXX executable cinatra
cd /Users/mic/vm/ui/cinatra/build/examples/cinatra && /usr/local/Cellar/cmake/3.3.0/bin/cmake -E cmake_link_script CMakeFiles/cinatra.dir/link.txt --verbose=1
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++    -Wl,-search_paths_first -Wl,-headerpad_max_install_names  CMakeFiles/cinatra.dir/main.cpp.o  -o cinatra  /usr/local/lib/libboost_coroutine-mt.dylib /usr/local/lib/libboost_context-mt.dylib /usr/local/lib/libboost_system-mt.dylib /usr/local/lib/libboost_thread-mt.dylib /usr/local/lib/libboost_chrono-mt.dylib /usr/local/lib/libboost_date_time-mt.dylib /usr/local/lib/libboost_regex-mt.dylib /usr/local/lib/libboost_filesystem-mt.dylib /usr/local/lib/libboost_unit_test_framework-mt.dylib /usr/lib/libssl.dylib /usr/lib/libcrypto.dylib -lpthread 
Undefined symbols for architecture x86_64:
  "_ERR_remove_thread_state", referenced from:
      boost::asio::ssl::detail::openssl_init_base::do_init::~do_init() in main.cpp.o
  "_TLSv1_1_client_method", referenced from:
      boost::asio::ssl::context::context(boost::asio::ssl::context_base::method) in main.cpp.o
  "_TLSv1_1_method", referenced from:
      boost::asio::ssl::context::context(boost::asio::ssl::context_base::method) in main.cpp.o
  "_TLSv1_1_server_method", referenced from:
      boost::asio::ssl::context::context(boost::asio::ssl::context_base::method) in main.cpp.o
  "_TLSv1_2_client_method", referenced from:
      boost::asio::ssl::context::context(boost::asio::ssl::context_base::method) in main.cpp.o
  "_TLSv1_2_method", referenced from:
      boost::asio::ssl::context::context(boost::asio::ssl::context_base::method) in main.cpp.o
  "_TLSv1_2_server_method", referenced from:
      boost::asio::ssl::context::context(boost::asio::ssl::context_base::method) in main.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [examples/cinatra/cinatra] Error 1
make[1]: *** [examples/cinatra/CMakeFiles/cinatra.dir/all] Error 2
make: *** [all] Error 2

比如gcc的./contrib/download_prerequisites，自动判断依赖库是否需要安装或者升级，运行完毕就可以直接编译

Would you like to replace any double quotes by angle brackets around file names for include statements?

multipart_parser* multipart_parser_init
(const char boundary, const multipart_parser_settings settings) {

size_t boundary_length = strlen(boundary);
multipart_parser* p = malloc(sizeof(multipart_parser) +
boundary_length +
boundary_length + 9);

strcpy_s(p->multipart_boundary, boundary_length, boundary);

boundary_length 这个参数给得有问题，应该是boundary_length + 1

Hey,

it would be nice if you guys could do english commit messages instead of chinese, because I cannot understand them.

(English comments in source code would be nice too.)