X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/4d4f20d4287b144f73dae8195c5f2ba134b72e64..ff976abdc0f201064cd0fb608c39990ba2656561:/src/bindings/java/jmsg_comm.cpp

diff --git a/src/bindings/java/jmsg_comm.cpp b/src/bindings/java/jmsg_comm.cpp
index 9570c3c869..96ddecf03d 100644
--- a/src/bindings/java/jmsg_comm.cpp
+++ b/src/bindings/java/jmsg_comm.cpp
@@ -120,3 +120,50 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Comm_waitCompletion(JNIEnv *env, job
     jmsg_throw_status(env,status);
   }
 }
+
+static msg_comm_t* jarray_to_commArray(JNIEnv *env, jobjectArray jcomms, /* OUT */ int *count)
+{
+  *count = env->GetArrayLength(jcomms);
+  msg_comm_t* comms = xbt_new(msg_comm_t, *count);
+
+  for (int i=0; i < *count; i++) {
+     jobject jcomm = env->GetObjectArrayElement(jcomms, i);
+     if (env->ExceptionOccurred())
+        break;
+
+     comms[i] = (msg_comm_t) (uintptr_t) env->GetLongField(jcomm, jcomm_field_Comm_bind);
+     if (!comms[i]) {
+       jxbt_throw_native(env,bprintf("comm at rank %d is null",i));
+       return nullptr;
+     }
+
+     env->DeleteLocalRef(jcomm); // reduce the load on the garbage collector: we don't need that object anymore
+  }
+  return comms;
+}
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Comm_waitAll(JNIEnv *env, jclass cls, jobjectArray jcomms, jdouble timeout)
+{
+  int count;
+  msg_comm_t* comms = jarray_to_commArray(env, jcomms, &count);
+  if (!comms)
+    return;
+
+  MSG_comm_waitall(comms, count, static_cast<double>(timeout));
+  xbt_free(comms);
+}
+JNIEXPORT int JNICALL Java_org_simgrid_msg_Comm_waitAny(JNIEnv *env, jclass cls, jobjectArray jcomms)
+{
+  int count;
+  msg_comm_t* comms = jarray_to_commArray(env, jcomms, &count);
+  if (!comms)
+    return -1;
+  xbt_dynar_t dyn = xbt_dynar_new(sizeof(msg_comm_t),nullptr);
+  for (int i=0; i<count; i++) {
+    xbt_dynar_push(dyn, &(comms[i]));
+  }
+
+  int rank = MSG_comm_waitany(dyn);
+  xbt_free(comms);
+  xbt_dynar_free(&dyn);
+  return rank;
+}