reworked chapter 2 and added new chapter 3 ref #25

src/1_futures_in_rust.md

@@ -145,11 +145,8 @@ communicate with one another directly.**.
 This design is what gives the futures framework it's power and flexibility and allows the Rust
 standard library to provide an ergonomic, zero-cost abstraction for us to use.
 
-In an effort to try to visualize how these parts work together in a simple program I created this
-GIF. Note that the code is "pseudo-Rust" to help us focus on the important parts:
-
-#### Fig 2: Simplified flow in an async system
-![futures_animation](./assets/futures_animation.gif)
+In an effort to try to visualize how these parts work together I put together
+a set of slides in the next chapter that I hope will help.
 
 The two most popular runtimes for Futures as of writing this is:
 

src/2_a_mental_model_for_futures.md

@@ -0,0 +1,71 @@
+# Get a mental model of how Futures and runtimes work
+
+In this chapter we'll try to build a high level mental model of how Futures and
+runtimes work together. Just note that the code itself is "pseudo-rust" due to space
+restrictions and clarity. The main goal in this part is to create a high level
+understanding to make it easier to learn. This is not the only way to model this
+since we're making assumtions on runtime specifics that can vary a great deal,
+but it's the way I found it easiest to build upon.
+
+>Click on a page to open a larger view of it in a new tab.
+>
+>_Thanks to [@ckaran](https://github.com/ckaran) for feedback and [discussions](https://github.com/cfsamson/books-futures-explained/issues/25) on
+this chapter._
+
+<a href="./assets/slides/Slide1.PNG" target="_blank">
+ <img src="./assets/slides/Slide1.PNG" alt="slide1"/>
+</a>
+<a href="./assets/slides/Slide2.PNG" target="_blank">
+ <img src="./assets/slides/Slide2.PNG" alt="slide2"/>
+</a>
+<a href="./assets/slides/Slide3.PNG" target="_blank">
+ <img src="./assets/slides/Slide3.PNG" alt="slide3"/>
+</a>
+<a href="./assets/slides/Slide4.PNG" target="_blank">
+ <img src="./assets/slides/Slide4.PNG" alt="slide4"/>
+</a>
+<a href="./assets/slides/Slide5.PNG" target="_blank">
+ <img src="./assets/slides/Slide5.PNG" alt="slide5"/>
+</a>
+<a href="./assets/slides/Slide6.PNG" target="_blank">
+ <img src="./assets/slides/Slide6.PNG" alt="slide6"/>
+</a>
+<a href="./assets/slides/Slide7.PNG" target="_blank">
+ <img src="./assets/slides/Slide7.PNG" alt="slide7"/>
+</a>
+<a href="./assets/slides/Slide8.PNG" target="_blank">
+ <img src="./assets/slides/Slide8.PNG" alt="slide8"/>
+</a>
+<a href="./assets/slides/Slide9.PNG" target="_blank">
+ <img src="./assets/slides/Slide9.PNG" alt="slide9"/>
+</a>
+<a href="./assets/slides/Slide10.PNG" target="_blank">
+ <img src="./assets/slides/Slide10.PNG" alt="slide10"/>
+</a>
+<a href="./assets/slides/Slide11.PNG" target="_blank">
+ <img src="./assets/slides/Slide11.PNG" alt="slide11"/>
+</a>
+<a href="./assets/slides/Slide12.PNG" target="_blank">
+ <img src="./assets/slides/Slide12.PNG" alt="slide12"/>
+</a>
+<a href="./assets/slides/Slide13.PNG" target="_blank">
+ <img src="./assets/slides/Slide13.PNG" alt="slide13"/>
+</a>
+<a href="./assets/slides/Slide14.PNG" target="_blank">
+ <img src="./assets/slides/Slide14.PNG" alt="slide14"/>
+</a>
+<a href="./assets/slides/Slide15.PNG" target="_blank">
+ <img src="./assets/slides/Slide15.PNG" alt="slide15"/>
+</a>
+<a href="./assets/slides/Slide16.PNG" target="_blank">
+ <img src="./assets/slides/Slide16.PNG" alt="slide16"/>
+</a>
+<a href="./assets/slides/Slide17.PNG" target="_blank">
+ <img src="./assets/slides/Slide17.PNG" alt="slide17"/>
+</a>
+<a href="./assets/slides/Slide18.PNG" target="_blank">
+ <img src="./assets/slides/Slide18.PNG" alt="slide18"/>
+</a>
+<a href="./assets/slides/Slide19.PNG" target="_blank">
+ <img src="./assets/slides/Slide19.PNG" alt="slide19"/>
+</a>

src/SUMMARY.md

@@ -4,10 +4,11 @@
 
 - [Background information](./0_background_information.md)
 - [Futures in Rust](./1_futures_in_rust.md)
-- [Waker and Context](./2_waker_context.md)
-- [Generators and async/await](./3_generators_async_await.md)
-- [Pin](./4_pin.md)
+- [A mental model for Futures](./2_a_mental_model_for_futures.md)
+- [Waker and Context](./3_waker_context.md)
+- [Generators and async/await](./4_generators_async_await.md)
+- [Pin](./5_pin.md)
 - [Implementing Futures](./6_future_example.md)
-- [Finished example (editable)](./8_finished_example.md)
+- [Finished example (editable)](./7_finished_example.md)
 
 [Conclusion and exercises](./conclusion.md)