time stamp collection

[Kazusa-Touma]

Hello to the community,
We are trying to collect time stamp infomation about "up_phy_dl" task on srsRAN, thus I add some members in class unique function to record the time that task enter the queue and pop from the queue.
In task worker pool, when we try to push a unique task into the queue, we record the time stamp in varible "in_queue_time" before the task is pushed as follows:

But when we attempt to get unique task in the queue, we find the varible "in_queue_time" that are supposed to record the time when a task was pushed to be 0, which is the default value.


Our goal is to calculate the time that a task wait in the queue, but there's something wrong with recording the time stamp, so is there any approach to calculate it in srsRAN?
Thanks in advance for any suggestion on this.