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feat: add message port example for tizen
Signed-off-by: Hosung Kim hs852.kim@samsung.com
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‎examples/tizen/message-port/.gitignore‎

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out
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lib/
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bin/
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include/
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packaging/*.p12
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.git

‎examples/tizen/message-port/CMakeLists.txt‎

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cmake_minimum_required(VERSION 3.9.4)
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project(lwnode-example-messageport)
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find_library(LWNODE_LIB lwnode HINT lib)
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find_package(PkgConfig REQUIRED)
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pkg_check_modules (TIZEN_PKGS REQUIRED dlog)
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set(SAMPLE_DEFINITIONS
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-DNODE_ARCH=arm,
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-DNODE_PLATFORM=linux,
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-DNODE_WANT_INTERNALS=1,
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)
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add_executable(${PROJECT_NAME} src/main.cc)
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target_include_directories(${PROJECT_NAME} PRIVATE "include" ${TIZEN_PKGS_INCLUDE_DIRS})
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target_link_libraries(${PROJECT_NAME} PRIVATE ${LWNODE_LIB} ${TIZEN_PKGS_LIBRARIES} -pthread -Wl,-rpath='\$\$ORIGIN/../lib')
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target_link_directories(${PROJECT_NAME} PRIVATE ${TIZEN_PKGS_LIBRARY_DIRS})
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target_compile_definitions(${PROJECT_NAME} PRIVATE ${SAMPLE_DEFINITIONS})
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‎examples/tizen/message-port/README.md‎

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### Copy lightweight node header and library
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- copy `liblwnode.so` to `lib` folder
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- copy `libescargot.so` to `lib` folder
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- copy `lwnode.dat` to `bin` folder
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- copy `lwnode-public.h` to `include` folder
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- copy `message-port.h` to `include` folder
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```bash
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cd <app_project_root>
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cp <lwnode_root>/out/tizen/arm/Release/lib/liblwnode.so ./lib/
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cp <lwnode_root>/out/tizen/arm/Release/gen/escargot/libescargot.so ./lib/
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cp <lwnode_root>/out/tizen/arm/Release/lwnode.dat ./bin/
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cp <lwnode_root>/include/lwnode/lwnode-public.h ./include/
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cp <lwnode_root>/include/lwnode/message-port.h ./include/
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```
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### Copy certification profile files
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- If you want to sign your app, copy some files to `packaging` folder.
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```bash
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cp tizen_author.p12 ./packaging/
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cp tizen-distributor-partner-manufacturer-signer.p12 ./packaging/
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```
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### Edit packaging/lwnode-example-messageport.spec
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- You should input signer url in spec file.
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```
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%define _signer_url http://x.x.x.x/kuep_net_signer.sh
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```
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### Package tpk
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- To package tpk, you should build gbs.
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For example,
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``` bash
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gbs -c ~/gbs.conf build -A armv7l -B ~/GBS-ROOT/helloworld --incremental --include-all
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```
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After build, you can find tpk file in `out` folder.
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### Show log
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- To view node console log, use `dlogutil lwnode` command.
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``` bash
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dlogutil lwnode
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```

‎examples/tizen/message-port/packaging/lwnode-example-messageport.manifest‎

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<manifest>
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<request>
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<domain name="_" />
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</request>
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</manifest>

‎examples/tizen/message-port/packaging/lwnode-example-messageport.spec‎

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Name: lwnode-example-messageport
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Summary: -
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Version: 1.0.0
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Release: 1
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Group: System/Servers
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License: MIT
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Source: %{name}-%{version}.tar.gz
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Source1001: lwnode-example-messageport.manifest
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Requires(post): /sbin/ldconfig
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Requires(postun): /sbin/ldconfig
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%if ("%{tizen_version}" >= "7.0")
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BuildRequires: sdk-core
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BuildRequires: sdk-rootstraps
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%else
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BuildRequires: builtin-java
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BuildRequires: builtin-tizensdk, builtin-tizensdk-rootstraps
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BuildRequires: app-signer, python-xml
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%endif
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BuildRequires: cmake, ninja
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BuildRequires: rsync
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BuildRequires: pkgconfig(dlog)
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BuildRequires: pkgconfig(glib-2.0)
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BuildRequires: pkgconfig(aul)
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BuildRequires: pkgconfig(capi-appfw-app-common)
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%define _signer_url http://<<url>>/kuep_net_signer.sh
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%description
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sample
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# Configure
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# Initialize the variables
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%define _output ./out
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%define _native_out ./out/%{name}
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%define _jsroot res
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%define _lib_dist ./out/project/%{_jsroot}/lib
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%define _native_dist ./out/project/%{_jsroot}/lib/build
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%define _project ./out/project
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%define _certi ./packaging
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%prep
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%setup -q
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%build
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mkdir -p %{_native_out}
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cmake . -B%{_native_out} -H. -G Ninja
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ninja -v -C %{_native_out}
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# project scaffolding
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rm -rf %{_project}
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mkdir -p %{_project}/%{_jsroot}
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# copy lwnode binary
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cp -rf bin %{_project}
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cp -rf lib %{_project}
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# copy JavaScript files
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rsync -avm --include='*.js' -f 'hide,! */' ./%{_jsroot}/* %{_project}/%{_jsroot}
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rsync -avm --include='*.node' -f 'hide,! */' ./%{_jsroot}/* %{_project}/%{_jsroot}
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rsync -avm --include='*.json' -f 'hide,! */' ./%{_jsroot}/* %{_project}/%{_jsroot}
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cp -rf tizen-manifest.xml %{_project}
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# copy exec file
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cp -f %{_native_out}/%{name} %{_project}/bin
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# setup tizen certificate profile
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tizen cli-config "profiles.path=%{_prefix}/tizen-studio-data/profile/profiles.xml"
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tizen security-profiles add -n ABS -a %{_certi}/tizen_author.p12 -p \
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tizenauthor -d %{_certi}/tizen-distributor-partner-manufacturer-signer.p12 \
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-dp tizenpkcs12passfordsigner
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# signing
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curl -o ./kuep_net_signer.sh %{_signer_url} && chmod +x ./kuep_net_signer.sh
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./kuep_net_signer.sh -s -tizen_major_ver %{?tizen_version_major} %{_project}/lib/liblwnode.*
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./kuep_net_signer.sh -s -tizen_major_ver %{?tizen_version_major} %{_project}/lib/libescargot.*
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./kuep_net_signer.sh -s -tizen_major_ver %{?tizen_version_major} %{_project}/bin/%{name}
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# packaging
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cd %{_project}
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zip ../%{name}.tpk * -r
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cd - > /dev/null
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tizen package -t tpk -s ABS -- %{_output}/%{name}.tpk
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%install
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%clean
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rm -f ./*.list
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rm -f ./*.manifest
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rm -rf %{_project}
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rm -rf %{_native_out}
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rm -f kuep_net_signer.sh
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%post
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/sbin/ldconfig
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%postun
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/sbin/ldconfig
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%files
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%defattr(-,root,root,-)

‎examples/tizen/message-port/res/index.js‎

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console.log('[JS] started...');
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const lwnode = process.lwnode;
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const port = process.lwnode.port;
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// Keep the process alive until we receive a message.
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// lwnode is not terminated until lwnode.unref() is called, which decreases the reference count.
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lwnode.ref();
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// Listen for messages from the native app.
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port.onmessage = (event) => {
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console.log(`[JS] receive ${event.data}`);
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if (event.data == "ping") {
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// send a response back to the native app. (c -> js)
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port.postMessage("pong");
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// Unref the process. If you want to keep it alive, remove this line.
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lwnode.unref();
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}
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};

‎examples/tizen/message-port/src/main.cc‎

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#include <dlog.h>
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#include <cstdlib>
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#include <future>
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#include <thread>
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#include "lwnode-public.h"
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#define APP_LOG_TAG "lwnode"
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int main(int argc, char* argv[]) {
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dlog_print(
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DLOG_INFO, APP_LOG_TAG, "[Native] message-port example app started...");
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std::promise<void> promise;
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std::future<void> init_future = promise.get_future();
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auto runtime = std::make_shared<lwnode::Runtime>();
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std::thread t([&]() {
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dlog_print(DLOG_INFO, APP_LOG_TAG, "[Native] start thread");
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lwnode::SetDlogID(APP_LOG_TAG); // set dlog tag for lwnode
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std::string path = "/opt/usr/apps/lwnode-example-messageport/res/";
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if (!lwnode::InitScriptRootPath(path)) {
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dlog_print(DLOG_ERROR,
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APP_LOG_TAG,
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"[Native] fail to set script root path: %s",
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path.c_str());
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return;
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}
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char* args[] = {
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const_cast<char*>(""), const_cast<char*>("index.js"), nullptr};
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dlog_print(DLOG_INFO, APP_LOG_TAG, "[Native] runtime.Start() called...");
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runtime->Start(2, args, std::move(promise));
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dlog_print(DLOG_INFO, APP_LOG_TAG, "[Native] end thread");
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});
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// Wait until the js script is initialized to get the port.
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init_future.wait();
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std::shared_ptr<Port> port = runtime->GetPort();
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// Register a callback function to receive messages from the js script.
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port->OnMessage([](const MessageEvent* event) {
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dlog_print(DLOG_INFO,
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APP_LOG_TAG,
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"[Native] received message from js: %s",
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event->data().c_str());
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});
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// Send a message to the js script. The main script will send back a
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// message.
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port->PostMessage(MessageEvent::New("ping"));
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t.join();
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return 0;
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}

‎examples/tizen/message-port/tizen-manifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns="http://tizen.org/ns/packages" api-version="8.0" package="lwnode-example-messageport" version="1.0.0">
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<profile name="tv-samsung" />
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<service-application appid="lwnode-example-messageport" exec="lwnode-example-messageport" type="c++app" multiple="false" taskmanage="false" nodisplay="true" on-boot="false">
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<icon>service.png</icon>
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<label>Lightweight Example</label>
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</service-application>
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<privileges>
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<!-- <privilege>http://tizen.org/privilege/application.info</privilege> -->
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</privileges>
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</manifest>

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