Method alloc

java/com/google/re2j/Machine.java:168–178

(Inst inst)

  // alloc() allocates a new thread with the given instruction.
  // It uses the free pool if possible.
  private Thread alloc(Inst inst) {
    Thread t;
    if (poolSize > 0) {
      poolSize--;
      t = pool[poolSize];
    } else {
      t = new Thread(matchcap.length);
    }
    t.inst = inst;
    return t;
  }

  // Frees all threads on the thread queue, returning them to the free pool.
  private void free(Queue queue) {