From 9bdb0a12e45a8e9f9f6a4bd4a9c172c5376c7f60 Mon Sep 17 00:00:00 2001
From: marisa <mokou@posteo.de>
Date: Mon, 11 Nov 2019 16:51:38 +0100
Subject: feat: Refactor hint system

Hints are now accessible using the CLI subcommand `rustlings hint
<exercise name`.

BREAKING CHANGE: This fundamentally changes the way people interact with exercises.
---
 exercises/threads/threads1.rs | 72 ++-----------------------------------------
 1 file changed, 3 insertions(+), 69 deletions(-)

(limited to 'exercises/threads/threads1.rs')

diff --git a/exercises/threads/threads1.rs b/exercises/threads/threads1.rs
index 7983668..3308321 100644
--- a/exercises/threads/threads1.rs
+++ b/exercises/threads/threads1.rs
@@ -1,8 +1,8 @@
 // threads1.rs
-// Make this compile! Scroll down for hints :) The idea is the thread
-// spawned on line 19 is completing jobs while the main thread is
+// Make this compile! Execute `rustlings hint threads1` for hints :)
+// The idea is the thread spawned on line 19 is completing jobs while the main thread is
 // monitoring progress until 10 jobs are completed. If you see 6 lines
-// of "waiting..." and the program ends without timing out the playground,
+// of "waiting..." and the program ends without timing out when running,
 // you've got it :)
 
 use std::sync::Arc;
@@ -27,69 +27,3 @@ fn main() {
         thread::sleep(Duration::from_millis(500));
     }
 }
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-// `Arc` is an Atomic Reference Counted pointer that allows safe, shared access
-// to **immutable** data. But we want to *change* the number of `jobs_completed`
-// so we'll need to also use another type that will only allow one thread to
-// mutate the data at a time. Take a look at this section of the book:
-// https://doc.rust-lang.org/book/ch16-03-shared-state.html#atomic-reference-counting-with-arct
-// and keep scrolling if you'd like more hints :)
-
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-// Do you now have an `Arc` `Mutex` `JobStatus` at the beginning of main? Like:
-// `let status = Arc::new(Mutex::new(JobStatus { jobs_completed: 0 }));`
-// Similar to the code in the example in the book that happens after the text
-// that says "We can use Arc<T> to fix this.". If not, give that a try! If you
-// do and would like more hints, keep scrolling!!
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-// Make sure neither of your threads are holding onto the lock of the mutex
-// while they are sleeping, since this will prevent the other thread from
-// being allowed to get the lock. Locks are automatically released when
-// they go out of scope.
-
-// Ok, so, real talk, this was actually tricky for *me* to do too. And
-// I could see a lot of different problems you might run into, so at this
-// point I'm not sure which one you've hit :) Please see a few possible
-// answers on https://github.com/carols10cents/rustlings/issues/3 --
-// mine is a little more complicated because I decided I wanted to see
-// the number of jobs currently done when I was checking the status.
-
-// Please open an issue if you're still running into a problem that
-// these hints are not helping you with, or if you've looked at the sample
-// answers and don't understand why they work and yours doesn't.
-
-// If you've learned from the sample solutions, I encourage you to come
-// back to this exercise and try it again in a few days to reinforce
-// what you've learned :)
-- 
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