tianshuang,
On 10/23/21 23:44, Poison wrote:
Tomcat version: 8.5.72
org.apache.tomcat.util.threads.TaskQueue source
code: https://github.com/apache/tomcat/blob/8.5.72/java/org/apache/tomcat/util/threads/TaskQueue.java#L33
In the comments of the TaskQueue class, it mentions "If you use a normal
queue, the executor will spawn threads when there are idle threads and you wont be able to force
items onto the queue itself.". But when we use
java.util.concurrent.LinkedBlockingQueue, it will be put into the queue by default instead of
creating threads. What queue does the normal queue in the comment refer to?
Just looking at the class definition, I think "normal queue" means "an
instance of another subclass of BlockingQueue<Runnable>".
The TaskQueue class has a "force" method which does something like
"offer" but behaves differently. Tomcat can use this internally instead
of having to only use the more limited "offer" method of the Queue
interface.
-chris
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org
