我想以一種方式試驗C++ 11線程,它接受一個類的成員函數作爲線程構造函數的一個參數,如下面第一行代碼片段所示20標記。類定義在第二個代碼片段中給出。當這段代碼被編譯時,我得到了第三段代碼中顯示的一堆錯誤。誰能告訴我我做錯了什麼?謝謝。執行一個類的成員函數
SNIPPET 1:螺紋初始化(main_app.cpp)
#include <thread>
#include "ServiceRegistrar.hpp"
#define SERVER_TYPE 100065
#define SERVER_INST_LOWER 1
#define SERVER_INST_UPPER 2
#define TIMEOUT 500000
int main()
{
ServiceRegistrar sr1(SERVER_TYPE, TIMEOUT, SERVER_INST_LOWER, SERVER_INST_LOWER);
/*LINE 20 is the following*/
std::thread t(&ServiceRegistrar::subscribe2TopologyServer, sr1);
t.join();
sr1.publishForSRs();
}
SNIPPET 2:類定義
class ServiceRegistrar
{
public:
ServiceRegistrar(int serverType, int serverTimeOut, int serverInstanceLower, int serverInstanceUpper)
: mServerType(serverType),
mServerTimeOut(serverTimeOut),
mServerInstanceLower(serverInstanceLower),
mServerInstanceUpper(serverInstanceUpper)
{ }
void subscribe2TopologyServer();
void publishForSRs();
void publishForServices();
private:
int mServerType;
int mServerTimeOut;
int mServerInstanceLower;
int mServerInstanceUpper;
};
SNIPPET 3:編譯輸出
$ g++ -g -c -Wall -std=c++11 main_app.cpp -pthread
In file included from /usr/include/c++/4.7/ratio:38:0,
from /usr/include/c++/4.7/chrono:38,
from /usr/include/c++/4.7/thread:38,
from main_app.cpp:8:
/usr/include/c++/4.7/type_traits: In instantiation of ‘struct std::_Result_of_impl<false, false, std::_Mem_fn<void (ServiceRegistrar::*)()>, ServiceRegistrar>’:
/usr/include/c++/4.7/type_traits:1857:12: required from ‘class std::result_of<std::_Mem_fn<void (ServiceRegistrar::*)()>(ServiceRegistrar)>’
/usr/include/c++/4.7/functional:1563:61: required from ‘struct std::_Bind_simple<std::_Mem_fn<void (ServiceRegistrar::*)()>(ServiceRegistrar)>’
/usr/include/c++/4.7/thread:133:9: required from ‘std::thread::thread(_Callable&&, _Args&& ...) [with _Callable = void (ServiceRegistrar::*)(); _Args = {ServiceRegistrar&}]’
main_app.cpp:20:64: required from here
/usr/include/c++/4.7/type_traits:1834:9: error: no match for call to ‘ (std::_Mem_fn<void (ServiceRegistrar::*)()>) (ServiceRegistrar)’
ewwww非常不必要的宏。 – Puppy 2013-02-28 19:00:39