我目前正在编写一个 firebreath C++ NPAPI 插件,并且我试图从插件内部调用 boost::thread。我正在构建的平台是 Ubuntu Linux 13.04。这是类声明和相关成员函数实现的骨架:
class EmulatorLaunchPluginAPI : public FB::JSAPIAuto
{
public:
EmulatorLaunchPluginAPI(const EmulatorLaunchPluginPtr& plugin,
const FB::BrowserHostPtr& host):m_plugin(plugin), m_host(host)
{
registerMethod("launch_emulator",
make_method(this, &EmulatorLaunchPluginAPI::launch_emulator));
registerMethod("launch_emulator_thread",
make_method(this, &EmulatorLaunchPluginAPI::launch_emulator_thread));
}
virtual ~EmulatorLaunchPluginAPI() {};
EmulatorLaunchPluginPtr getPlugin()
{
EmulatorLaunchPluginPtr plugin(m_plugin.lock());
if (!plugin) {
throw FB::script_error("The plugin is invalid");
}
return plugin;
}
bool launch_emulator(const std::string& ,const FB::JSObjectPtr& )
{
emt(boost::bind(//boost::type<void>(),
&EmulatorLaunchPluginAPI::launch_emulator_thread,
this,
cmd,
callback));
return true;
}
void launch_emulator_thread(const std::string& , const FB::JSObjectPtr& )
{
//thread body logic here
int result = 0;
result = invoke_command(cmd);
//callback to the browser
callback->InvokeAsync("", FB::variant_list_of(shared_from_this())(result));
}
private:
int invoke_command(const std::string& )
{
int res = system("/usr/bin/firefox");
return res;
}
EmulatorLaunchPluginWeakPtr m_plugin;
FB::BrowserHostPtr m_host;
boost::thread emt;
};
I am getting the following compile error for the code fragmented highlighted above:
[ 54%] 构建 CXX 对象项目/EmulatorLaunchPlugin/CMakeFiles/EmulatorLaunchPlugin.dir/EmulatorLaunchPluginAPI.cpp.o /home/ajay/Downloads/firebreath-FireBreath-c335f5b/projects/EmulatorLaunchPlugin/EmulatorLaunchPluginAPI.cpp:在成员函数'bool EmulatorLaunchPluginAPI: :launch_emulator(const string&, const JSObjectPtr&)': /home/ajay/Downloads/firebreath-FireBreath-c335f5b/projects/EmulatorLaunchPlugin/EmulatorLaunchPluginAPI.cpp:94:30: 错误:不匹配调用'(boost::thread) (boost::_bi::bind_t&, const boost::shared_ptr&>, boost::_bi::list3, boost::_bi::value >, boost::_bi::value > > >)' make[2]: * [projects/EmulatorLaunchPlugin/CMakeFiles/EmulatorLaunchPlugin.dir/EmulatorLaunchPluginAPI.cpp.o] 错误 1 make[1]:[projects/EmulatorLaunchPlugin/CMakeFiles/EmulatorLaunchPlugin.dir/all] 错误 2 make: * * [all] 错误 2
我是 Boost 库的新手,我确实尝试了解 boost::bind 的工作原理,但我无法解决此错误。有人可以帮我理解编译器的行为吗?
问候, 阿杰