jobQ | Async and parallel execution of jobs , tasks and processes | Architecture library
kandi X-RAY | jobQ Summary
kandi X-RAY | jobQ Summary
Async and parallel execution of jobs, tasks and processes. This library is aimed to solve the problem of having to limit how many parallel tasks you want to perform. It accepts several kinds of sources including Arrays, Promises, Functions, etc.
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QUESTION
I am trying to get a thread pool to run a method were the arguments are passed by reference. The method I want to run is:
void Foo(const std::vector &arg1, std::vector &arg2, int size) {//modify elements of arg2}
I am submitting this function to a thread pool:
...ANSWER
Answered 2021-Apr-23 at 03:13According to std::bind documentation:
The return type of
std::bindholds a member object of typestd::decay::typeconstructed fromstd::forward(f), and one object per each ofargs..., of typestd::decay::type, similarly constructed fromstd::forward(arg_i).
Thanks to decay, the arguments are "stored-by-value", which means the arguments are either copy-constructed or move-constructed. This explains their different address.
As usually in such situations, the solution is in using std::reference_wrapper:
QUESTION
I've written a job request system in PHP with a MySQL database and I'm having an issue with a slow query.
My schema (simplified) is as follows:
tbl_job
job_id
job_desc
requester_user_id
tbl_user
user_id
user_name
tbl_workermap
workermap_id
job_id
worker_user_id
A table containing the jobs, a user table for the possible workers and one to map workers to jobs. A job can have one or more workers, a worker can have one or more jobs.
tbl_user contains both users who request work, and those that work on the jobs, so user IDs are stored under worker_user_id in tbl_workermap and requester_user_id in tbl_job
When a job is logged it creates an entry in tbl_job but nothing in tbl_workermap until someone specifically assigns a worker. This means that when I query the jobs I do it with a left join as there are not entries in tbl_workermap for every job:
...ANSWER
Answered 2019-Jan-18 at 16:10If you have not already, create a clustered index by setting a primary key (assuming the tables are properly normalized). (If you haven't, you will likely want to setup foreign key constraints as well.)
If this question were involved Microsoft SQL Server, I would recommend creating a stored procedure, especially if this is a query run frequently as some sort of regular process. As noted in this answer, however, primary performance benefit for simple queries like this will be from table design and indices.
QUESTION
I have 3 models, the base model is Jobs and Customers, Contacts are the models associated with jobs. Here is the association.
...ANSWER
Answered 2018-Jul-23 at 18:41If you are following cake conventions should be simply:
QUESTION
I'm trying to add the Jobs to DB and then load them when the script runs again. The following code adds it to db but when you restart the script it loads the job but runs it for ever. It seems that the job import is correct but I can not figure out why it is running Wilde?
...ANSWER
Answered 2017-Nov-20 at 05:35Here is the solution I have found. We need to convert the loaded time from the DB into date time object cause it is stored as TEXT.
In the code I entered for the question I needed to add .time() to make the conversion complete.
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