C++ condition_variable_any::notify_all方法代码示例

void myUserHandler15( const CanMsgStruct/*&*/ message) {
	_canmodule_slowDown( 15 );
	boost::unique_lock<boost::mutex> lock{reception_mtx15};
	_connection_v[ 15 ].reception.newArrived = true;
	_connection_v[ 15 ].reception.receivedMessageBuffer = message;
	reception_cond15.notify_all();
}

void my_search::process(int proc_num){
	vector<int> cur_ch;
	vector<int> words;
	int i=0,word_size;
	while(argv[proc_num+1][i]!=0)i++;
	word_size=i;
	words.resize(argc-4);
	cur_ch.resize(argc-4);
	while(counter_file<max_file){
		boost::lock_guard<boost::mutex> lock(m);
		while((counter==0)||(thr[proc_num]==false)){
			if(counter_file>=max_file)return;
			cv.wait(m);
		}
		pantheios::log_NOTICE(PSTR("Reading thread id: ["), pantheios::threadId, PSTR("]"));
		 for(unsigned int c=0;c<memblock.size();c++){
			 char i=memblock[c];
			if(argv[proc_num+1][cur_ch[file_num]]==i)
				cur_ch[file_num]++;
			else cur_ch[file_num]=0;
			if(cur_ch[file_num]==word_size){
				words[file_num]++;sum++;cur_ch[file_num]=0;
			}
		}
		counter--;
		thr[proc_num]=false;
		if(comp_size[file_num]==0){
			cout<<argv[file_num+4]<<" "<<argv[proc_num+1]<<
					" "<<words[file_num]<<endl;
			counter_file++;
		}
		cv.notify_all();
	}
	return;
}

/**
 * The user-handlerX gets invoked each time there is a new can message on connectionX, according to HW sync.
 * We put this message into a buffer, protect it from the wait, and notify the wait that
 * the new msg can be picked up. Using boost for sync.
 *
 * this handler must be connected to the CanModule access point by this wrapper in the canmodule_init call,
 * and this is hardcoded. We can have only static mutexes and cond_vars, therefore we have to decide BEFORE
 * compile-time how many reception threads we want. While in principle we can have a big number easily, let's
 * limit the number of connections ( PC port or ip-number && CAN port ) we can have PER TASK to 16.
 * This corresponds to 16 CAN buses, using i.e. one systec16 module or 8 anagate-duos.
 *
 * The user can conveniently pick up the new message from the waitForNewMessage call which
 * blocks until new reception. Just a separate thread or whatever sequence is needed for the
 * blocking reception call, the user can implement whatever scheme she likes.
 */
void myUserHandler0( const CanMsgStruct/*&*/ message) {
	int connectionIndex = 0;
	LOG(Log::TRC) << __FUNCTION__ << " received a message [id= " << message.c_id << " data0= " << (int) message.c_data[ 0 ]
				  << "] connectionIndex= " << connectionIndex;
	_canmodule_slowDown( connectionIndex );
	{
		boost::unique_lock<boost::mutex> lock{reception_mtx0};
		_connection_v[ connectionIndex ].reception.newArrived = true;
		_connection_v[ connectionIndex ].reception.receivedMessageBuffer = message;
	}
	LOG(Log::TRC) << __FUNCTION__ << " new message copied, notify_all connectionIndex= " << connectionIndex;
	reception_cond0.notify_all();
}

void my_search:: loadfile(int fl_num){
	file[fl_num].open(argv[fl_num+4], ios::in|ios::binary|ios::ate);
	if (file[fl_num].is_open())
	{
		comp_size[fl_num] = file[fl_num].tellg();
		file[fl_num].seekg (0, ios::beg);
		while(comp_size[fl_num]>0){
			boost::lock_guard<boost::mutex> lock(m);
			while(counter!=0){
				cv.wait(m);
			}
			pantheios::log_NOTICE(PSTR("Writing thread id: ["), pantheios::threadId, PSTR("]"));
			if(comp_size[fl_num]<1024){
				file[fl_num].read (mem, comp_size[fl_num]);
				memblock=mem;
				memblock.resize(comp_size[fl_num]);
				comp_size[fl_num]=0;
			}else {
				file[fl_num].read (mem, 1024);
				memblock=mem;
				memblock.resize(1024);
				comp_size[fl_num]-=1024;
			}
			counter=3;
			file_num=fl_num;
			for (int cc=0;cc<3;cc++)thr[cc]=true;
			cv.notify_all();
		}
		file[fl_num].close();
	}else {
		boost::lock_guard<boost::mutex> lock(m);
		cout << "Unable to open file "<<argv[fl_num+4]<<endl;
		counter_file+=3;
		cv.notify_all();
	}
	return;
}