Add threads example

2019-02-05 14:02:40 -05:00 · 2019-02-05 14:02:40 -05:00 · 9c148dcf5c
parent 971140b6ff
commit 9c148dcf5c
5 changed files with 105 additions and 16 deletions
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@ -28,6 +28,7 @@
    <cargoProject FILE="$PROJECT_DIR$/reference_counting/Cargo.toml" />
    <cargoProject FILE="$PROJECT_DIR$/interior_mutability/Cargo.toml" />
    <cargoProject FILE="$PROJECT_DIR$/reference_cycles/Cargo.toml" />
+    <cargoProject FILE="$PROJECT_DIR$/threads/Cargo.toml" />
  </component>
  <component name="ComposerJsonPluginSettings">
    <unboundedVersionInspectionSettings>
--- a/.idea/rust.iml
+++ b/.idea/rust.iml
@ -114,6 +114,10 @@
      <sourceFolder url="file://$MODULE_DIR$/reference_cycles/examples" isTestSource="false" />
      <sourceFolder url="file://$MODULE_DIR$/reference_cycles/tests" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/reference_cycles/benches" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/threads/src" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/threads/examples" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/threads/tests" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/threads/benches" isTestSource="true" />
      <excludeFolder url="file://$MODULE_DIR$/add/add-one/target" />
      <excludeFolder url="file://$MODULE_DIR$/add/adder/target" />
      <excludeFolder url="file://$MODULE_DIR$/adder/target" />
@ -140,6 +144,7 @@
      <excludeFolder url="file://$MODULE_DIR$/slices/target" />
      <excludeFolder url="file://$MODULE_DIR$/smart_pointers/target" />
      <excludeFolder url="file://$MODULE_DIR$/structs/target" />
+      <excludeFolder url="file://$MODULE_DIR$/threads/target" />
      <excludeFolder url="file://$MODULE_DIR$/variables/target" />
    </content>
    <orderEntry type="inheritedJdk" />
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@ -15,10 +15,10 @@
  <component name="FileEditorManager">
    <leaf>
      <file pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/reference_cycles/src/main.rs">
+        <entry file="file://$PROJECT_DIR$/threads/src/main.rs">
          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="160">
-              <caret line="10" column="11" lean-forward="true" selection-start-line="10" selection-start-column="11" selection-end-line="10" selection-end-column="11" />
+            <state relative-caret-position="864">
+              <caret line="54" column="9" lean-forward="true" selection-start-line="54" selection-start-column="9" selection-end-line="54" selection-end-column="9" />
            </state>
          </provider>
        </entry>
@ -95,6 +95,7 @@
        <option value="$PROJECT_DIR$/interior_mutability/src/lib.rs" />
        <option value="$PROJECT_DIR$/reference_counting/src/main.rs" />
        <option value="$PROJECT_DIR$/reference_cycles/src/main.rs" />
+        <option value="$PROJECT_DIR$/threads/src/main.rs" />
      </list>
    </option>
  </component>
@ -128,12 +129,12 @@
            <path>
              <item name="rust" type="3d21c010:ScopeViewTreeModel$ProjectNode" />
              <item name="rust" type="2674bda8:ScopeViewTreeModel$GroupNode" />
-              <item name="reference_cycles" type="9f88c78c:ScopeViewTreeModel$FileNode" />
+              <item name="threads" type="9f88c78c:ScopeViewTreeModel$FileNode" />
            </path>
            <path>
              <item name="rust" type="3d21c010:ScopeViewTreeModel$ProjectNode" />
              <item name="rust" type="2674bda8:ScopeViewTreeModel$GroupNode" />
-              <item name="reference_cycles" type="9f88c78c:ScopeViewTreeModel$FileNode" />
+              <item name="threads" type="9f88c78c:ScopeViewTreeModel$FileNode" />
              <item name="src" type="9f88c78c:ScopeViewTreeModel$FileNode" />
            </path>
          </expand>
@ -167,7 +168,7 @@
  </component>
  <component name="PropertiesComponent">
    <property name="JavaScriptWeakerCompletionTypeGuess" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1549383008644" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1549393270881" />
    <property name="javascript.nodejs.core.library.configured.version" value="7.1.0" />
    <property name="js.eslint.eslintPackage" value="$USER_HOME$/.yarn-config/global/node_modules/.bin/eslint" />
    <property name="js.eslint.nodeInterpreter" value="project" />
@ -195,7 +196,7 @@
      </list>
    </option>
  </component>
-  <component name="RunManager" selected="Cargo Command.Run reference_cycles">
+  <component name="RunManager" selected="Cargo Command.Run threads">
    <configuration name="&lt;template&gt;" type="TestNG" default="true" selected="false">
      <option name="MAIN_CLASS_NAME" />
      <option name="VM_PARAMETERS" value="-ea" />
@ -234,13 +235,13 @@
      <envs />
      <method v="2" />
    </configuration>
-    <configuration name="Run smart_pointers" type="CargoCommandRunConfiguration" factoryName="Cargo Command" temporary="true">
+    <configuration name="Run threads" type="CargoCommandRunConfiguration" factoryName="Cargo Command" temporary="true">
      <option name="channel" value="DEFAULT" />
-      <option name="command" value="run --package smart_pointers --bin smart_pointers" />
+      <option name="command" value="run --package threads --bin threads" />
      <option name="allFeatures" value="false" />
      <option name="nocapture" value="false" />
      <option name="backtrace" value="SHORT" />
-      <option name="workingDirectory" value="file://$PROJECT_DIR$/smart_pointers" />
+      <option name="workingDirectory" value="file://$PROJECT_DIR$/threads" />
      <envs />
      <method v="2" />
    </configuration>
@ -273,11 +274,11 @@
    </configuration>
    <recent_temporary>
      <list>
+        <item itemvalue="Cargo Command.Run threads" />
        <item itemvalue="Cargo Command.Run reference_cycles" />
        <item itemvalue="Cargo Command.Run reference_counting" />
        <item itemvalue="Cargo Command.Test lib::tests" />
        <item itemvalue="Cargo Command.Test tests::it_sends_an_over_75_percent_warning_message" />
-        <item itemvalue="Cargo Command.Run smart_pointers" />
      </list>
    </recent_temporary>
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@ -317,8 +318,8 @@
    <frame x="1680" y="-410" width="1050" height="1657" extended-state="6" />
    <editor active="true" />
    <layout>
-      <window_info content_ui="combo" id="Project" order="0" sideWeight="0.49644932" visible="true" weight="0.26141885" />
-      <window_info id="Structure" order="1" sideWeight="0.50355065" side_tool="true" visible="true" weight="0.26141885" />
+      <window_info content_ui="combo" id="Project" order="0" sideWeight="0.49586776" visible="true" weight="0.26141885" />
+      <window_info id="Structure" order="1" sideWeight="0.5041322" side_tool="true" visible="true" weight="0.26141885" />
      <window_info id="Image Layers" order="2" />
      <window_info id="Designer" order="3" />
      <window_info id="Capture Tool" order="4" />
@ -326,7 +327,7 @@
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      <window_info anchor="bottom" id="Message" order="0" />
      <window_info anchor="bottom" id="Find" order="1" weight="0.32979318" />
-      <window_info anchor="bottom" id="Run" order="2" weight="0.29696578" />
+      <window_info active="true" anchor="bottom" id="Run" order="2" visible="true" weight="0.29696578" />
      <window_info anchor="bottom" id="Debug" order="3" weight="0.4" />
      <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
      <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
@ -756,8 +757,15 @@
    </entry>
    <entry file="file://$PROJECT_DIR$/reference_cycles/src/main.rs">
      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="160">
-          <caret line="10" column="11" lean-forward="true" selection-start-line="10" selection-start-column="11" selection-end-line="10" selection-end-column="11" />
+        <state relative-caret-position="768">
+          <caret line="48" column="1" lean-forward="true" selection-start-line="48" selection-start-column="1" selection-end-line="48" selection-end-column="1" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/threads/src/main.rs">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="864">
+          <caret line="54" column="9" lean-forward="true" selection-start-line="54" selection-start-column="9" selection-end-line="54" selection-end-column="9" />
        </state>
      </provider>
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--- a/threads/Cargo.toml
+++ b/threads/Cargo.toml
@ -0,0 +1,7 @@
+[package]
+name = "threads"
+version = "0.1.0"
+authors = ["Timothy Warren <twarren@nabancard.com>"]
+edition = "2018"
+
+[dependencies]
--- a/threads/src/main.rs
+++ b/threads/src/main.rs
@ -0,0 +1,68 @@
+use std::thread;
+use std::time::Duration;
+use std::sync::mpsc;
+
+fn basic_thread_usage() {
+    let v = vec![1, 2, 3];
+
+    // Move is a keyword, not a parameter, it gives
+    // ownership of closure values to the thread
+    let handle = thread::spawn(move|| {
+        for i in 1..10 {
+            println!("hi number {} from the spawned thread!", i);
+            println!("Here's a vector: {:?}", v);
+            thread::sleep(Duration::from_millis(1));
+        }
+    });
+
+    handle.join().unwrap();
+
+    for i in 1..5 {
+        println!("hi number {} from the main thread!", i);
+        thread::sleep(Duration::from_millis(1));
+    }
+}
+
+fn messages_example() {
+    let (tx, rx) = mpsc::channel();
+
+    let tx1 = mpsc::Sender::clone(&tx);
+    thread::spawn(move || {
+        let vals = vec![
+            String::from("hi"),
+            String::from("from"),
+            String::from("the"),
+            String::from("thread"),
+        ];
+
+        for val in vals {
+            tx1.send(val).unwrap();
+            thread::sleep(Duration::from_secs(1));
+        }
+    });
+
+    thread::spawn(move || {
+        let vals = vec![
+            String::from("more"),
+            String::from("messages"),
+            String::from("for"),
+            String::from("you"),
+        ];
+
+        for val in vals {
+            tx.send(val).unwrap();
+            thread::sleep(Duration::from_secs(1));
+        }
+    });
+
+
+    for received in rx {
+        println!("Got: {}", received);
+    }
+}
+
+fn main() {
+    basic_thread_usage();
+
+    messages_example();
+}