├── .gitignore ├── LICENSE.txt ├── README.md ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── settings.gradle └── src └── nativeMain └── kotlin └── sample ├── Background.kt ├── BackgroundSupport.kt ├── Debugging.kt ├── FrozenState.kt ├── GlobalState.kt ├── SampleMain.kt └── SimpleState.kt /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the ART/Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | out/ 15 | 16 | # Gradle files 17 | .gradle/ 18 | build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log 28 | 29 | # Android Studio Navigation editor temp files 30 | .navigation/ 31 | 32 | # Android Studio captures folder 33 | captures/ 34 | 35 | # IntelliJ IDEA 36 | /.idea 37 | 38 | # Android Studio 39 | *.iws 40 | *.ipr 41 | *.iml 42 | .gradle 43 | /local.properties 44 | /.idea/caches 45 | /.idea/libraries 46 | /.idea/modules.xml 47 | /.idea/workspace.xml 48 | /.idea/navEditor.xml 49 | /.idea/assetWizardSettings.xml 50 | /.idea/encodings.xml 51 | /.idea/codeStyles/Project.xml 52 | .DS_Store 53 | /build 54 | /captures 55 | .externalNativeBuild 56 | .cxx 57 | 58 | # Keystore files 59 | *.jks 60 | 61 | # Eclipse project files 62 | .classpath 63 | .project 64 | 65 | ## Playgrounds 66 | timeline.xctimeline 67 | playground.xcworkspace 68 | 69 | # fastlane 70 | # 71 | # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 72 | # screenshots whenever they are needed. 73 | # For more information about the recommended setup visit: 74 | # https://github.com/fastlane/fastlane/blob/master/fastlane/docs/Gitignore.md 75 | 76 | fastlane/report.xml 77 | fastlane/Preview.html 78 | fastlane/screenshots 79 | fastlane/test_output 80 | 81 | #Because ugh 82 | .DS_Store 83 | 84 | buildboth.sh 85 | sessionize/app/google-services.json 86 | iosApp/iosApp/app/GoogleService-Info.plist 87 | iosApp/iosApp/GoogleService-Info.plist 88 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. Definitions. 9 | 10 | "License" shall mean the terms and conditions for use, reproduction, 11 | and distribution as defined by Sections 1 through 9 of this document. 12 | 13 | "Licensor" shall mean the copyright owner or entity authorized by 14 | the copyright owner that is granting the License. 15 | 16 | "Legal Entity" shall mean the union of the acting entity and all 17 | other entities that control, are controlled by, or are under common 18 | control with that entity. For the purposes of this definition, 19 | "control" means (i) the power, direct or indirect, to cause the 20 | direction or management of such entity, whether by contract or 21 | otherwise, or (ii) ownership of fifty percent (50%) or more of the 22 | outstanding shares, or (iii) beneficial ownership of such entity. 23 | 24 | "You" (or "Your") shall mean an individual or Legal Entity 25 | exercising permissions granted by this License. 26 | 27 | "Source" form shall mean the preferred form for making modifications, 28 | including but not limited to software source code, documentation 29 | source, and configuration files. 30 | 31 | "Object" form shall mean any form resulting from mechanical 32 | transformation or translation of a Source form, including but 33 | not limited to compiled object code, generated documentation, 34 | and conversions to other media types. 35 | 36 | "Work" shall mean the work of authorship, whether in Source or 37 | Object form, made available under the License, as indicated by a 38 | copyright notice that is included in or attached to the work 39 | (an example is provided in the Appendix below). 40 | 41 | "Derivative Works" shall mean any work, whether in Source or Object 42 | form, that is based on (or derived from) the Work and for which the 43 | editorial revisions, annotations, elaborations, or other modifications 44 | represent, as a whole, an original work of authorship. For the purposes 45 | of this License, Derivative Works shall not include works that remain 46 | separable from, or merely link (or bind by name) to the interfaces of, 47 | the Work and Derivative Works thereof. 48 | 49 | "Contribution" shall mean any work of authorship, including 50 | the original version of the Work and any modifications or additions 51 | to that Work or Derivative Works thereof, that is intentionally 52 | submitted to Licensor for inclusion in the Work by the copyright owner 53 | or by an individual or Legal Entity authorized to submit on behalf of 54 | the copyright owner. For the purposes of this definition, "submitted" 55 | means any form of electronic, verbal, or written communication sent 56 | to the Licensor or its representatives, including but not limited to 57 | communication on electronic mailing lists, source code control systems, 58 | and issue tracking systems that are managed by, or on behalf of, the 59 | Licensor for the purpose of discussing and improving the Work, but 60 | excluding communication that is conspicuously marked or otherwise 61 | designated in writing by the copyright owner as "Not a Contribution." 62 | 63 | "Contributor" shall mean Licensor and any individual or Legal Entity 64 | on behalf of whom a Contribution has been received by Licensor and 65 | subsequently incorporated within the Work. 66 | 67 | 2. Grant of Copyright License. Subject to the terms and conditions of 68 | this License, each Contributor hereby grants to You a perpetual, 69 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 70 | copyright license to reproduce, prepare Derivative Works of, 71 | publicly display, publicly perform, sublicense, and distribute the 72 | Work and such Derivative Works in Source or Object form. 73 | 74 | 3. Grant of Patent License. Subject to the terms and conditions of 75 | this License, each Contributor hereby grants to You a perpetual, 76 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 77 | (except as stated in this section) patent license to make, have made, 78 | use, offer to sell, sell, import, and otherwise transfer the Work, 79 | where such license applies only to those patent claims licensable 80 | by such Contributor that are necessarily infringed by their 81 | Contribution(s) alone or by combination of their Contribution(s) 82 | with the Work to which such Contribution(s) was submitted. If You 83 | institute patent litigation against any entity (including a 84 | cross-claim or counterclaim in a lawsuit) alleging that the Work 85 | or a Contribution incorporated within the Work constitutes direct 86 | or contributory patent infringement, then any patent licenses 87 | granted to You under this License for that Work shall terminate 88 | as of the date such litigation is filed. 89 | 90 | 4. Redistribution. You may reproduce and distribute copies of the 91 | Work or Derivative Works thereof in any medium, with or without 92 | modifications, and in Source or Object form, provided that You 93 | meet the following conditions: 94 | 95 | (a) You must give any other recipients of the Work or 96 | Derivative Works a copy of this License; and 97 | 98 | (b) You must cause any modified files to carry prominent notices 99 | stating that You changed the files; and 100 | 101 | (c) You must retain, in the Source form of any Derivative Works 102 | that You distribute, all copyright, patent, trademark, and 103 | attribution notices from the Source form of the Work, 104 | excluding those notices that do not pertain to any part of 105 | the Derivative Works; and 106 | 107 | (d) If the Work includes a "NOTICE" text file as part of its 108 | distribution, then any Derivative Works that You distribute must 109 | include a readable copy of the attribution notices contained 110 | within such NOTICE file, excluding those notices that do not 111 | pertain to any part of the Derivative Works, in at least one 112 | of the following places: within a NOTICE text file distributed 113 | as part of the Derivative Works; within the Source form or 114 | documentation, if provided along with the Derivative Works; or, 115 | within a display generated by the Derivative Works, if and 116 | wherever such third-party notices normally appear. The contents 117 | of the NOTICE file are for informational purposes only and 118 | do not modify the License. You may add Your own attribution 119 | notices within Derivative Works that You distribute, alongside 120 | or as an addendum to the NOTICE text from the Work, provided 121 | that such additional attribution notices cannot be construed 122 | as modifying the License. 123 | 124 | You may add Your own copyright statement to Your modifications and 125 | may provide additional or different license terms and conditions 126 | for use, reproduction, or distribution of Your modifications, or 127 | for any such Derivative Works as a whole, provided Your use, 128 | reproduction, and distribution of the Work otherwise complies with 129 | the conditions stated in this License. 130 | 131 | 5. Submission of Contributions. Unless You explicitly state otherwise, 132 | any Contribution intentionally submitted for inclusion in the Work 133 | by You to the Licensor shall be under the terms and conditions of 134 | this License, without any additional terms or conditions. 135 | Notwithstanding the above, nothing herein shall supersede or modify 136 | the terms of any separate license agreement you may have executed 137 | with Licensor regarding such Contributions. 138 | 139 | 6. Trademarks. This License does not grant permission to use the trade 140 | names, trademarks, service marks, or product names of the Licensor, 141 | except as required for reasonable and customary use in describing the 142 | origin of the Work and reproducing the content of the NOTICE file. 143 | 144 | 7. Disclaimer of Warranty. Unless required by applicable law or 145 | agreed to in writing, Licensor provides the Work (and each 146 | Contributor provides its Contributions) on an "AS IS" BASIS, 147 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 148 | implied, including, without limitation, any warranties or conditions 149 | of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A 150 | PARTICULAR PURPOSE. You are solely responsible for determining the 151 | appropriateness of using or redistributing the Work and assume any 152 | risks associated with Your exercise of permissions under this License. 153 | 154 | 8. Limitation of Liability. In no event and under no legal theory, 155 | whether in tort (including negligence), contract, or otherwise, 156 | unless required by applicable law (such as deliberate and grossly 157 | negligent acts) or agreed to in writing, shall any Contributor be 158 | liable to You for damages, including any direct, indirect, special, 159 | incidental, or consequential damages of any character arising as a 160 | result of this License or out of the use or inability to use the 161 | Work (including but not limited to damages for loss of goodwill, 162 | work stoppage, computer failure or malfunction, or any and all 163 | other commercial damages or losses), even if such Contributor 164 | has been advised of the possibility of such damages. 165 | 166 | 9. Accepting Warranty or Additional Liability. While redistributing 167 | the Work or Derivative Works thereof, You may choose to offer, 168 | and charge a fee for, acceptance of support, warranty, indemnity, 169 | or other liability obligations and/or rights consistent with this 170 | License. However, in accepting such obligations, You may act only 171 | on Your own behalf and on Your sole responsibility, not on behalf 172 | of any other Contributor, and only if You agree to indemnify, 173 | defend, and hold each Contributor harmless for any liability 174 | incurred by, or claims asserted against, such Contributor by reason 175 | of your accepting any such warranty or additional liability. 176 | 177 | END OF TERMS AND CONDITIONS 178 | 179 | APPENDIX: How to apply the Apache License to your work. 180 | 181 | To apply the Apache License to your work, attach the following 182 | boilerplate notice, with the fields enclosed by brackets "[]" 183 | replaced with your own identifying information. (Don't include 184 | the brackets!) The text should be enclosed in the appropriate 185 | comment syntax for the file format. We also recommend that a 186 | file or class name and description of purpose be included on the 187 | same "printed page" as the copyright notice for easier 188 | identification within third-party archives. 189 | 190 | Copyright [yyyy] [name of copyright owner] 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. 203 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [![official JetBrains project](https://jb.gg/badges/official.svg)](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub) 2 | [![GitHub license](https://img.shields.io/badge/license-Apache%20License%202.0-blue.svg?style=flat)](https://www.apache.org/licenses/LICENSE-2.0) 3 | 4 | # Kotlin Native Concurrency Hands-on 5 | 6 | Sample code for [Kotlin Native Concurrency Hands-on](https://play.kotlinlang.org/hands-on/Kotlin%20Native%20Concurrency/00_Introduction) 7 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | plugins { 2 | id 'org.jetbrains.kotlin.multiplatform' version '1.5.21' 3 | } 4 | repositories { 5 | mavenCentral() 6 | } 7 | 8 | def hostOs = System.getProperty("os.name") 9 | def isLinux = hostOs == "Linux" 10 | def isWindows = hostOs.startsWith("Windows") 11 | 12 | kotlin { 13 | // For ARM, should be changed to iosArm32 or iosArm64 14 | // For Linux, should be changed to e.g. linuxX64 15 | // For MacOS, should be changed to e.g. macosX64 16 | // For Windows, should be changed to e.g. mingwX64 17 | if(isLinux){ 18 | linuxX64("native"){ 19 | binaries { executable { entryPoint = 'sample.main' } } 20 | } 21 | }else if(isWindows){ 22 | mingwX64("native"){ 23 | binaries { executable { entryPoint = 'sample.main' } } 24 | } 25 | }else { 26 | macosX64("native"){ 27 | binaries { executable { entryPoint = 'sample.main' } } 28 | } 29 | } 30 | 31 | sourceSets { 32 | // Note: To enable common source sets please comment out 'kotlin.import.noCommonSourceSets' property 33 | // in gradle.properties file and re-import your project in IDE. 34 | nativeMain { 35 | dependencies { 36 | implementation "co.touchlab:stately-concurrency:1.1.7" 37 | } 38 | } 39 | nativeTest { 40 | } 41 | } 42 | } 43 | 44 | // Use the following Gradle tasks to run your application: 45 | // :runReleaseExecutableMacos - without debug symbols 46 | // :runDebugExecutableMacos - with debug symbols -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | kotlin.code.style=official 2 | kotlin.import.noCommonSourceSets=true -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kotlin-hands-on/KNConcurrencyHandson/92e461bade710406ca9f5f4ca64667d6362b092c/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | # 4 | # Copyright 2015 the original author or authors. 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # https://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | ############################################################################## 20 | ## 21 | ## Gradle start up script for UN*X 22 | ## 23 | ############################################################################## 24 | 25 | # Attempt to set APP_HOME 26 | # Resolve links: $0 may be a link 27 | PRG="$0" 28 | # Need this for relative symlinks. 29 | while [ -h "$PRG" ] ; do 30 | ls=`ls -ld "$PRG"` 31 | link=`expr "$ls" : '.*-> \(.*\)$'` 32 | if expr "$link" : '/.*' > /dev/null; then 33 | PRG="$link" 34 | else 35 | PRG=`dirname "$PRG"`"/$link" 36 | fi 37 | done 38 | SAVED="`pwd`" 39 | cd "`dirname \"$PRG\"`/" >/dev/null 40 | APP_HOME="`pwd -P`" 41 | cd "$SAVED" >/dev/null 42 | 43 | APP_NAME="Gradle" 44 | APP_BASE_NAME=`basename "$0"` 45 | 46 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 47 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 48 | 49 | # Use the maximum available, or set MAX_FD != -1 to use that value. 50 | MAX_FD="maximum" 51 | 52 | warn () { 53 | echo "$*" 54 | } 55 | 56 | die () { 57 | echo 58 | echo "$*" 59 | echo 60 | exit 1 61 | } 62 | 63 | # OS specific support (must be 'true' or 'false'). 64 | cygwin=false 65 | msys=false 66 | darwin=false 67 | nonstop=false 68 | case "`uname`" in 69 | CYGWIN* ) 70 | cygwin=true 71 | ;; 72 | Darwin* ) 73 | darwin=true 74 | ;; 75 | MINGW* ) 76 | msys=true 77 | ;; 78 | NONSTOP* ) 79 | nonstop=true 80 | ;; 81 | esac 82 | 83 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 84 | 85 | # Determine the Java command to use to start the JVM. 86 | if [ -n "$JAVA_HOME" ] ; then 87 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 88 | # IBM's JDK on AIX uses strange locations for the executables 89 | JAVACMD="$JAVA_HOME/jre/sh/java" 90 | else 91 | JAVACMD="$JAVA_HOME/bin/java" 92 | fi 93 | if [ ! -x "$JAVACMD" ] ; then 94 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 95 | 96 | Please set the JAVA_HOME variable in your environment to match the 97 | location of your Java installation." 98 | fi 99 | else 100 | JAVACMD="java" 101 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 102 | 103 | Please set the JAVA_HOME variable in your environment to match the 104 | location of your Java installation." 105 | fi 106 | 107 | # Increase the maximum file descriptors if we can. 108 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 109 | MAX_FD_LIMIT=`ulimit -H -n` 110 | if [ $? -eq 0 ] ; then 111 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 112 | MAX_FD="$MAX_FD_LIMIT" 113 | fi 114 | ulimit -n $MAX_FD 115 | if [ $? -ne 0 ] ; then 116 | warn "Could not set maximum file descriptor limit: $MAX_FD" 117 | fi 118 | else 119 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 120 | fi 121 | fi 122 | 123 | # For Darwin, add options to specify how the application appears in the dock 124 | if $darwin; then 125 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 126 | fi 127 | 128 | # For Cygwin or MSYS, switch paths to Windows format before running java 129 | if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then 130 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 131 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 132 | JAVACMD=`cygpath --unix "$JAVACMD"` 133 | 134 | # We build the pattern for arguments to be converted via cygpath 135 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 136 | SEP="" 137 | for dir in $ROOTDIRSRAW ; do 138 | ROOTDIRS="$ROOTDIRS$SEP$dir" 139 | SEP="|" 140 | done 141 | OURCYGPATTERN="(^($ROOTDIRS))" 142 | # Add a user-defined pattern to the cygpath arguments 143 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 144 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 145 | fi 146 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 147 | i=0 148 | for arg in "$@" ; do 149 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 150 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 151 | 152 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 153 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 154 | else 155 | eval `echo args$i`="\"$arg\"" 156 | fi 157 | i=$((i+1)) 158 | done 159 | case $i in 160 | (0) set -- ;; 161 | (1) set -- "$args0" ;; 162 | (2) set -- "$args0" "$args1" ;; 163 | (3) set -- "$args0" "$args1" "$args2" ;; 164 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 165 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 166 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 167 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 168 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 169 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 170 | esac 171 | fi 172 | 173 | # Escape application args 174 | save () { 175 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 176 | echo " " 177 | } 178 | APP_ARGS=$(save "$@") 179 | 180 | # Collect all arguments for the java command, following the shell quoting and substitution rules 181 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 182 | 183 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 184 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 185 | cd "$(dirname "$0")" 186 | fi 187 | 188 | exec "$JAVACMD" "$@" 189 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @rem 2 | @rem Copyright 2015 the original author or authors. 3 | @rem 4 | @rem Licensed under the Apache License, Version 2.0 (the "License"); 5 | @rem you may not use this file except in compliance with the License. 6 | @rem You may obtain a copy of the License at 7 | @rem 8 | @rem https://www.apache.org/licenses/LICENSE-2.0 9 | @rem 10 | @rem Unless required by applicable law or agreed to in writing, software 11 | @rem distributed under the License is distributed on an "AS IS" BASIS, 12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | @rem See the License for the specific language governing permissions and 14 | @rem limitations under the License. 15 | @rem 16 | 17 | @if "%DEBUG%" == "" @echo off 18 | @rem ########################################################################## 19 | @rem 20 | @rem Gradle startup script for Windows 21 | @rem 22 | @rem ########################################################################## 23 | 24 | @rem Set local scope for the variables with windows NT shell 25 | if "%OS%"=="Windows_NT" setlocal 26 | 27 | set DIRNAME=%~dp0 28 | if "%DIRNAME%" == "" set DIRNAME=. 29 | set APP_BASE_NAME=%~n0 30 | set APP_HOME=%DIRNAME% 31 | 32 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 33 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" 34 | 35 | @rem Find java.exe 36 | if defined JAVA_HOME goto findJavaFromJavaHome 37 | 38 | set JAVA_EXE=java.exe 39 | %JAVA_EXE% -version >NUL 2>&1 40 | if "%ERRORLEVEL%" == "0" goto init 41 | 42 | echo. 43 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 44 | echo. 45 | echo Please set the JAVA_HOME variable in your environment to match the 46 | echo location of your Java installation. 47 | 48 | goto fail 49 | 50 | :findJavaFromJavaHome 51 | set JAVA_HOME=%JAVA_HOME:"=% 52 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 53 | 54 | if exist "%JAVA_EXE%" goto init 55 | 56 | echo. 57 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 58 | echo. 59 | echo Please set the JAVA_HOME variable in your environment to match the 60 | echo location of your Java installation. 61 | 62 | goto fail 63 | 64 | :init 65 | @rem Get command-line arguments, handling Windows variants 66 | 67 | if not "%OS%" == "Windows_NT" goto win9xME_args 68 | 69 | :win9xME_args 70 | @rem Slurp the command line arguments. 71 | set CMD_LINE_ARGS= 72 | set _SKIP=2 73 | 74 | :win9xME_args_slurp 75 | if "x%~1" == "x" goto execute 76 | 77 | set CMD_LINE_ARGS=%* 78 | 79 | :execute 80 | @rem Setup the command line 81 | 82 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 83 | 84 | @rem Execute Gradle 85 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 86 | 87 | :end 88 | @rem End local scope for the variables with windows NT shell 89 | if "%ERRORLEVEL%"=="0" goto mainEnd 90 | 91 | :fail 92 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 93 | rem the _cmd.exe /c_ return code! 94 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 95 | exit /b 1 96 | 97 | :mainEnd 98 | if "%OS%"=="Windows_NT" endlocal 99 | 100 | :omega 101 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | rootProject.name = 'KNConcurrencySamples' 2 | -------------------------------------------------------------------------------- /src/nativeMain/kotlin/sample/Background.kt: -------------------------------------------------------------------------------- 1 | package sample 2 | 3 | import kotlin.native.concurrent.ensureNeverFrozen 4 | import kotlin.native.concurrent.isFrozen 5 | 6 | fun basicBackground(){ 7 | println("Is main thread $isMainThread") 8 | background { 9 | println("Is main thread $isMainThread") 10 | } 11 | } 12 | 13 | fun captureState(){ 14 | val sd = SomeData("Hello 🥶", 67) 15 | println("Am I frozen? ${sd.isFrozen}") 16 | background { 17 | println("Am I frozen now? ${sd.isFrozen}") 18 | } 19 | } 20 | 21 | fun captureTooMuch(){ 22 | val model = CountingModel() 23 | model.increment() 24 | println("I have ${model.count}") 25 | 26 | model.increment() 27 | println("I have ${model.count}") //We won't get here 28 | } 29 | 30 | class CountingModel{ 31 | var count = 0 32 | 33 | fun increment(){ 34 | count++ 35 | background { 36 | saveToDb(count) 37 | } 38 | } 39 | 40 | private fun saveToDb(arg:Int){ 41 | //Do some db stuff 42 | println("Saving $arg to db") 43 | } 44 | } 45 | 46 | fun captureTooMuchAgain(){ 47 | val model = CountingModel() 48 | println("model is frozen ${model.isFrozen}") 49 | model.increment() 50 | println("model is frozen ${model.isFrozen}") 51 | } 52 | 53 | fun captureArgs(){ 54 | val model = CountingModelSafer() 55 | model.increment() 56 | println("I have ${model.count}") 57 | 58 | model.increment() 59 | println("I have ${model.count}") 60 | } 61 | 62 | class CountingModelSafer{ 63 | var count = 0 64 | 65 | fun increment(){ 66 | count++ 67 | saveToDb(count) 68 | } 69 | 70 | private fun saveToDb(arg:Int) = background { 71 | println("Doing db stuff with $arg, in main $isMainThread") 72 | } 73 | } 74 | -------------------------------------------------------------------------------- /src/nativeMain/kotlin/sample/BackgroundSupport.kt: -------------------------------------------------------------------------------- 1 | package sample 2 | 3 | import co.touchlab.stately.concurrency.ThreadRef 4 | import kotlin.native.concurrent.Future 5 | import kotlin.native.concurrent.TransferMode 6 | import kotlin.native.concurrent.Worker 7 | import kotlin.native.concurrent.freeze 8 | 9 | fun background(block: () -> Unit) { 10 | val future = worker.execute(TransferMode.SAFE, { block.freeze() }) { 11 | it() 12 | } 13 | collectFutures.add(future) 14 | } 15 | 16 | private val worker = Worker.start() 17 | private val collectFutures = mutableListOf>() 18 | 19 | fun setupThreading() { 20 | //Need to record the first thread as the main thread 21 | isMainThread 22 | } 23 | 24 | fun teardownThreading() { 25 | //Wrap it up! 26 | collectFutures.forEach { it.result } 27 | worker.requestTermination() 28 | } 29 | 30 | @SharedImmutable 31 | private val mainThreadRef: ThreadRef by lazy { 32 | ThreadRef() 33 | } 34 | 35 | val isMainThread: Boolean 36 | get() = mainThreadRef.same() -------------------------------------------------------------------------------- /src/nativeMain/kotlin/sample/Debugging.kt: -------------------------------------------------------------------------------- 1 | package sample 2 | 3 | import kotlin.native.concurrent.ensureNeverFrozen 4 | import kotlin.native.concurrent.freeze 5 | 6 | fun ensureNeverFrozenFailNow() { 7 | val sd = SomeData("a", 1) 8 | sd.freeze() 9 | sd.ensureNeverFrozen() //This will fail 10 | } 11 | 12 | fun ensureNeverFrozenFailLater() { 13 | val sd = SomeData("a", 1) 14 | sd.ensureNeverFrozen() 15 | sd.freeze() //This will fail 16 | } 17 | 18 | fun ensureNeverFrozenBackground() { 19 | val sd = SomeData("a", 1) 20 | sd.ensureNeverFrozen() 21 | background { 22 | println("Won't get here $sd") 23 | } 24 | } 25 | 26 | fun captureTooMuchInit() { 27 | val model = CountingModelEnsure() 28 | model.increment() 29 | println("I have ${model.count}") //We won't even get here 30 | } 31 | 32 | class CountingModelEnsure{ 33 | 34 | init { 35 | ensureNeverFrozen() 36 | } 37 | 38 | var count = 0 39 | 40 | fun increment(){ 41 | count++ 42 | background { 43 | saveToDb(count) 44 | } 45 | } 46 | 47 | private fun saveToDb(arg:Int){ 48 | //Do some db stuff 49 | println("Saving $arg to db") 50 | } 51 | } -------------------------------------------------------------------------------- /src/nativeMain/kotlin/sample/FrozenState.kt: -------------------------------------------------------------------------------- 1 | package sample 2 | 3 | import kotlin.native.concurrent.freeze 4 | import kotlin.native.concurrent.isFrozen 5 | 6 | fun freezeSomeState(){ 7 | val sd = SomeData("Hello 🐶", 22) 8 | sd.freeze() 9 | 10 | println("Am I frozen? ${sd.isFrozen}") 11 | } 12 | 13 | data class SomeData(val s:String, val i:Int) 14 | 15 | fun failChanges(){ 16 | val smd = SomeMutableData(3) 17 | smd.i++ 18 | println("smd: $smd") 19 | 20 | smd.freeze() 21 | smd.i++ 22 | println("smd: $smd") //We won't actually get here 23 | } 24 | 25 | data class SomeMutableData(var i:Int) 26 | 27 | fun freezeChildren(){ 28 | val dataWithReference = DataWithReference(SomeData("Hello 🐶", 22)) 29 | dataWithReference.freeze() 30 | 31 | println("Am I frozen? ${dataWithReference.child.isFrozen}") 32 | } 33 | 34 | data class DataWithReference(val child:SomeData) -------------------------------------------------------------------------------- /src/nativeMain/kotlin/sample/GlobalState.kt: -------------------------------------------------------------------------------- 1 | package sample 2 | 3 | import kotlin.native.concurrent.FutureState 4 | import kotlin.native.concurrent.TransferMode 5 | import kotlin.native.concurrent.Worker 6 | 7 | fun cantChangeThis(){ 8 | println("i ${DefaultGlobalState.i}") 9 | DefaultGlobalState.i++ 10 | println("i ${DefaultGlobalState.i}") //We won't get here 11 | } 12 | 13 | object DefaultGlobalState{ 14 | var i = 5 15 | } 16 | 17 | fun canChangeThreadLocal(){ 18 | println("i ${ThreadLocalGlobalState.i}") 19 | ThreadLocalGlobalState.i++ 20 | println("i ${ThreadLocalGlobalState.i}") 21 | } 22 | 23 | @ThreadLocal 24 | object ThreadLocalGlobalState{ 25 | var i = 5 26 | } 27 | 28 | fun threadLocalDifferentThreads(){ 29 | println("main thread: i ${ThreadLocalGlobalState.i}") 30 | ThreadLocalGlobalState.i++ 31 | println("main thread: i ${ThreadLocalGlobalState.i}") 32 | background { 33 | println("other thread: i ${ThreadLocalGlobalState.i}") 34 | } 35 | } 36 | 37 | fun companionAlsoFrozen(){ 38 | println("i ${GlobalStateCompanion.i}") 39 | GlobalStateCompanion.i++ 40 | println("i ${GlobalStateCompanion.i}") //We won't get here 41 | } 42 | 43 | class GlobalStateCompanion{ 44 | companion object { 45 | var i = 5 46 | } 47 | } 48 | 49 | fun globalCounting(){ 50 | globalCounterData.i++ 51 | println("count ${globalCounterData.i}") 52 | globalCounterData.i++ 53 | println("count ${globalCounterData.i}") 54 | } 55 | 56 | var globalCounterData = SomeMutableData(33) 57 | 58 | fun globalCountingFail(){ 59 | background { 60 | try { 61 | globalCounterData.i++ 62 | println("count ${globalCounterData.i}") 63 | } catch (e: Exception) { 64 | e.printStackTrace() 65 | } 66 | } 67 | } 68 | 69 | @SharedImmutable 70 | val globalCounterDataShared = SomeMutableData(33) 71 | 72 | fun globalCountingSharedFail(){ 73 | globalCounterDataShared.i++ 74 | } -------------------------------------------------------------------------------- /src/nativeMain/kotlin/sample/SampleMain.kt: -------------------------------------------------------------------------------- 1 | package sample 2 | 3 | fun main() { 4 | setupThreading() 5 | 6 | println("\n\n---------------") 7 | 8 | // 1) Simple State 9 | // Just your usual mutable state, in the main thread. 10 | // runSimpleState() 11 | 12 | // 2) Frozen State 13 | // freezeSomeState() 14 | // failChanges() 15 | // freezeChildren() 16 | 17 | // 3) Global State 18 | // cantChangeThis() 19 | // canChangeThreadLocal() 20 | // threadLocalDifferentThreads() 21 | // companionAlsoFrozen() 22 | // globalCounting() 23 | // globalCountingFail() 24 | // globalCountingSharedFail() 25 | 26 | // 4) Background 27 | // basicBackground() 28 | // captureState() 29 | // captureTooMuch() 30 | // captureTooMuchAgain() 31 | // captureArgs() 32 | 33 | // 5) Debugging 34 | // ensureNeverFrozenFailNow() 35 | // ensureNeverFrozenFailLater() 36 | // ensureNeverFrozenBackground() 37 | // captureTooMuchInit() 38 | 39 | //Leave this please... 40 | teardownThreading() 41 | 42 | println("---------------\n\n") 43 | } -------------------------------------------------------------------------------- /src/nativeMain/kotlin/sample/SimpleState.kt: -------------------------------------------------------------------------------- 1 | package sample 2 | 3 | fun runSimpleState(){ 4 | val s = SimpleState() 5 | s.increment() 6 | s.increment() 7 | s.report() 8 | s.decrement() 9 | s.report() 10 | } 11 | 12 | class SimpleState{ 13 | var count = 0 14 | 15 | fun increment(){ 16 | count++ 17 | } 18 | 19 | fun decrement(){ 20 | count-- 21 | } 22 | 23 | fun report(){ 24 | println("My count $count") 25 | } 26 | } --------------------------------------------------------------------------------