The problem:
In an emergency department facility in a hospital, patients arrive without prior appointment. They are sent to triage to determine their priority. There are 3 types of priority, 1, 2 and 3. Patients with priority 3 are considered more urgent and are seen before patients with priority 2 or 1 even if they arrived first and patients with priority 2 are seen before patients with priority 1. Thid Erlang-based application simulates this process. Implement:
- One process for the triage.
- A central process to store waiting patients and their priority.
- One processes for health providers that will see these patients removing them from the central process queue.
Designing the solution:
Using ETS (Erlang Term Storage) which is a built-in application that allows developers to create ram based key-value storage objects. I created a shared table between the process. They are all able to access it for reading or writing.
How to run the hospitalV4?
- compiling the erlang file
c("hospitalV4"). - run the start_hospital:
hospitalV4:start_hospital(). - call the add_patient to add new patient
hospitalV4:add_patient("wewewa","broken arm").
p.s.
don't forget the . after each command and accessing the dir in which erlang file is exist:
cd("your\full\path").
More details about the code in the comments.