I am currently writing a firebreath C++ NPAPI plugin, and i an trying to invoke a boost::thread from inside the plugin. The platform i am building it is Ubuntu Linux 13.04. Here is the skeleton of the class declaration and relevant member function implementations:
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%] Building CXX object projects/EmulatorLaunchPlugin/CMakeFiles/EmulatorLaunchPlugin.dir/EmulatorLaunchPluginAPI.cpp.o /home/ajay/Downloads/firebreath-FireBreath-c335f5b/projects/EmulatorLaunchPlugin/EmulatorLaunchPluginAPI.cpp: In member function ‘bool EmulatorLaunchPluginAPI::launch_emulator(const string&, const JSObjectPtr&)’: /home/ajay/Downloads/firebreath-FireBreath-c335f5b/projects/EmulatorLaunchPlugin/EmulatorLaunchPluginAPI.cpp:94:30: error: no match for call to ‘(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] Error 1 make[1]: [projects/EmulatorLaunchPlugin/CMakeFiles/EmulatorLaunchPlugin.dir/all] Error 2 make: ** [all] Error 2
I am new to Boost Libraries, and i did try to understand how boost::bind works, but i could not resolve this error. Can someone please help me understand the compiler's behavior?
Regards, Ajay
emt
. and after next; *** return
my internal parser got ICE %) – zauficall to ‘(boost::thread) (boost::_bi::bind_t&, const boost::shared_ptr&>
-- I don't see corresponding open angle bracket – zaufi