suspending notifying threads there work do

i have churned threads (c# concentration controlling iis) controlling need promulgate same mq backend. minimize network traffic, i need wholly send backend ask there work done. there thread guard there work done, needs report threads should also start processing. tide fortitude involves guard thread sourroundings tellurian non-static carrying threads loop check that, ie guard thread:

checkifworkavailable() {
  while(true) {
    (queue.empty != true) {
      worktobedone = true;
    }
  }//end while loop
}

and following workman threads:

dowork() {
  while(true) {
    (worktobedone == true) {
      //do work...
    }
    else {
      thread.sleep(x seconds)
    }
  }//end while loop
}

can guard thread report workman threads there work instead carrying only loop sleep? workman threads also set opposing indicating operative decrement work finished worktobedone fall set false.