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Cake day: July 10th, 2023

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  • The real example of a health check trait really brings this issue to life, it’s linked within op’s article as well

    Is this a reasonable summary?

    Say you want a trait where a method returns a task that you would like to sometimes run within your own thread and sometimes move it to a separate thread to be executed, that means the Send constraint isn’t necessary to add to your trait but it would be nice to add that constraint within another method’s parameter definition so that it can accept structs that implement the trait and further constrain that implementation to be Send’able. That’s now possible with this new rust language feature, though it was previously possible through a crate, now it’s no longer needed.
















  • I explained a little about buffer overflows, but in essence programming is the act of making a fancy list of commands for your computer to run one after the other.

    One concept in programming is an “array” or list of things, sometimes in languages like C the developer is responsible for keeping track of how many items are in a list. When that program accepts info from other programs (like a chat message, video call, website to render, etx) in the form of an array sometimes the sender can send more info than the developer expected to receive.

    When that extra info is received it can actually modify the fancy list of commands in such a way that the data itself is run directly on the computer instead of what the developer originally intended.

    Bad guy sends too much data, at the end of the data are secret instructions to install a new program that watches every key you type on your keyboard and send that info to the bad guy.