X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/96cedde3cdbc0b8ffc3f096a1b65d021b0226f99..4d02714ee138a3bd9b02e0064b7a2aa26407e9e8:/src/bindings/java/jmsg_task.cpp

diff --git a/src/bindings/java/jmsg_task.cpp b/src/bindings/java/jmsg_task.cpp
index 3207b73956..1983b13579 100644
--- a/src/bindings/java/jmsg_task.cpp
+++ b/src/bindings/java/jmsg_task.cpp
@@ -5,7 +5,9 @@
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
+#include "simgrid/Exception.hpp"
 #include "simgrid/s4u/Host.hpp"
+#include "src/kernel/context/Context.hpp"
 
 #include "jmsg.hpp"
 #include "jmsg_host.h"
@@ -126,7 +128,10 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject j
     return;
   }
   msg_error_t rv;
-  rv = MSG_task_execute(task);
+  if (not simgrid::ForcefulKillException::try_n_catch([&rv, &task]() { rv = MSG_task_execute(task); })) {
+    jxbt_throw_by_name(env, "org/simgrid/msg/ProcessKilledError", "Process killed");
+  }
+
   if (env->ExceptionOccurred())
     return;
   if (rv != MSG_OK) {
@@ -281,12 +286,17 @@ JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv* env, jclass
   msg_task_t task = nullptr;
 
   const char *alias = env->GetStringUTFChars(jalias, 0);
-  msg_error_t rv    = MSG_task_receive_ext(&task, alias, (double)jtimeout, /*host*/ nullptr);
+  msg_error_t rv;
+  if (not simgrid::ForcefulKillException::try_n_catch([&rv, &task, &alias, &jtimeout]() {
+        rv = MSG_task_receive_ext(&task, alias, (double)jtimeout, /*host*/ nullptr);
+      })) {
+    jxbt_throw_by_name(env, "org/simgrid/msg/ProcessKilledError", "Process killed");
+  }
   env->ReleaseStringUTFChars(jalias, alias);
   if (env->ExceptionOccurred())
     return nullptr;
   if (rv != MSG_OK) {
-    jmsg_throw_status(env,rv);
+    jmsg_throw_status(env, rv);
     return nullptr;
   }
   jobject jtask_global = (jobject) MSG_task_get_data(task);
@@ -461,13 +471,17 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jo
 
 static void msg_task_cancel_on_failed_dsend(void*t) {
   msg_task_t task = (msg_task_t) t;
-  JNIEnv *env =get_current_thread_env();
-  jobject jtask_global = (jobject) MSG_task_get_data(task);
-
-  /* Destroy the global ref so that the JVM can free the stuff */
-  env->DeleteGlobalRef(jtask_global);
+  JNIEnv* env     = get_current_thread_env();
+  if (env) {
+    jobject jtask_global = (jobject)MSG_task_get_data(task);
+    /* Destroy the global ref so that the JVM can free the stuff */
+    env->DeleteGlobalRef(jtask_global);
+    /* Don't free the C data here, to avoid a race condition with the GC also sometimes doing so.
+     * A rare memleak is seen as preferable to a rare "free(): invalid pointer" failure that
+     * proves really hard to debug.
+     */
+  }
   MSG_task_set_data(task, nullptr);
-  MSG_task_destroy(task);
 }
 
 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)