C: handler for abort (#135)

* C: handler for abort

CEF will kill the thread if the GPU process cannot be created. This
brings down Suwayomi with it, so instead just kill the thread and inform
Java about the exception.

* Two-stage build to download an build catch_abort

Building JNI extensions requires JDK, but we don't need it at runtime,
so create a build-step based on JDK, then copy the built binary over

* Add catch handler to github action

.github/workflows/container.yml

@@ -183,6 +183,7 @@ jobs:
             TACHIDESK_DOCKER_GIT_COMMIT=${{ steps.get_latest_release_metadata.outputs.tachidesk_docker_git_commit }}
             TACHIDESK_KCEF=
             TACHIDESK_KCEF_RELEASE_URL=https://api.github.com/repos/JetBrains/JetBrainsRuntime/releases/latest
+            TACHIDESK_ABORT_HANDLER_DOWNLOAD_URL=https://raw.githubusercontent.com/Suwayomi/Suwayomi-Server/refs/heads/master/scripts/resources/catch_abort.c
           tags: |
             ${{ inputs.tachidesk_release_type == 'stable' && 'ghcr.io/suwayomi/tachidesk:latest' || '' }}
             ghcr.io/suwayomi/tachidesk:${{ inputs.tachidesk_release_type }}

Dockerfile

@@ -1,3 +1,20 @@
+FROM eclipse-temurin:21.0.7_6-jdk-noble AS build
+
+ARG TACHIDESK_ABORT_HANDLER_DOWNLOAD_URL
+
+# build abort handler
+RUN if [ -n "$TACHIDESK_ABORT_HANDLER_DOWNLOAD_URL" ]; then \
+      cd /tmp && \
+      curl "$TACHIDESK_ABORT_HANDLER_DOWNLOAD_URL" -O && \
+      apt-get update && \
+      apt-get -y install gcc && \
+      gcc -fPIC -I$JAVA_HOME/include -I$JAVA_HOME/include/linux -shared catch_abort.c -lpthread -o /opt/catch_abort.so && \
+      rm -f catch_abort.c && \
+      apt-get -y purge gcc --auto-remove && \
+      apt-get clean && \
+      rm -rf /var/lib/apt/lists/* || exit 1; \
+    fi
+
 FROM eclipse-temurin:21.0.7_6-jre-noble
 
 ARG BUILD_DATE
@@ -50,6 +67,8 @@ RUN if [ "$TACHIDESK_KCEF" = "y" ] || ([ "$TACHIDESK_KCEF" = "" ] && ([ "$TARGET
       rm -rf /var/lib/apt/lists/* || exit 1; \
     fi
 
+COPY --from=build /opt/*.so /opt/
+
 # Create a user to run as
 RUN userdel -r ubuntu
 RUN groupadd --gid 1000 suwayomi && \

scripts/startup_script.sh

@@ -111,4 +111,8 @@ if command -v Xvfb >/dev/null; then
 else
   echo "Suwayomi built without KCEF support, not starting Xvfb"
 fi
+if [ -f /opt/catch_abort.so ]; then
+  export LD_PRELOAD="/opt/catch_abort.so $LD_PRELOAD"
+fi
+echo "LD_PRELOAD=$LD_PRELOAD"
 exec java -Duser.home=/home/suwayomi -jar "/home/suwayomi/startup/tachidesk_latest.jar";