增加线程名称，便于调试。 (#79)

* stage线程分配问题 #75

* 设置线程名称，在top时显示线程名，便于调试

deps/common/seda/thread_pool.cpp

@@ -107,6 +107,9 @@ unsigned int Threadpool::add_threads(unsigned int threads)
       LOG_WARN("Failed to create one thread\n");
       break;
     }
+    char tmp[16] = {};
+    snprintf(tmp,sizeof(tmp), "%s%u",name_.c_str(), i);
+    pthread_setname_np(pthread, tmp);
   }
   nthreads_ += i;
   MUTEX_UNLOCK(&thread_mutex_);

deps/common/seda/timer_stage.cpp

@@ -295,6 +295,8 @@ bool TimerStage::initialize()
   int status = pthread_create(&timer_thread_id_, thread_attrs, &TimerStage::start_timer_thread, thread_args);
   if (status != 0)
     LOG_ERROR("failed to create timer thread: status=%d\n", status);
+  else
+    pthread_setname_np(timer_thread_id_, "TimerStage");
 
   return (status == 0);
 }