dataflow_cpp: added explicit exception handling, improved unit tests

dataflow_cpp/test/dataflow_cpp_test_simple.cc

@@ -36,6 +36,9 @@
 
 #include <embb/dataflow/dataflow.h>
 
+#define NUM_SLICES 8
+#define TEST_COUNT 12
+
 typedef embb::dataflow::Network<8> MyNetwork;
 typedef MyNetwork::ConstantSource< int > MyConstantSource;
 typedef MyNetwork::Source< int > MySource;
@@ -49,8 +52,6 @@ typedef MyNetwork::Sink< int > MySink;
 typedef MyNetwork::Switch< int > MySwitch;
 typedef MyNetwork::Select< int > MySelect;
 
-#define TEST_COUNT 12
-
 embb::base::Atomic<int> source_counter;
 int source_array[TEST_COUNT];
 
@@ -148,13 +149,16 @@ SimpleTest::SimpleTest() {
 void SimpleTest::TestBasic() {
   // All available cores
   embb::base::CoreSet core_set(true);
+  int num_cores = core_set.Count();
   embb::tasks::Node::Initialize(
     MTAPI_DOMAIN_ID,
     MTAPI_NODE_ID,
     core_set,
     1024, // max tasks (default: 1024)
     128,  // max groups (default: 128)
-    128,  // max queues (default: 16)
+    // Currently needs to be initialized
+    // with (max_queues + 1), see defect embb449
+    num_cores + 1, // max queues (default: 16)
     1024, // queue capacity (default: 1024)
     4     // num priorities (default: 4)
   );
@@ -204,7 +208,12 @@ void SimpleTest::TestBasic() {
     network.AddSource(constant);
     network.AddSource(source);
 
-    network();
+    try {
+      network();
+    } catch (embb::base::ErrorException & e) {
+      std::cout << e.What() << std::endl;
+      break;
+    }
 
     PT_EXPECT(asink.Check());
   }

tasks_cpp/src/queue.cc

@@ -29,6 +29,8 @@
 #include <embb/base/exceptions.h>
 #include <embb/tasks/tasks.h>
 
+#include <iostream>
+
 namespace embb {
 namespace tasks {
 
@@ -54,12 +56,17 @@ Queue::Queue(mtapi_uint_t priority, bool ordered) {
   mtapi_job_hndl_t job = mtapi_job_get(TASKS_CPP_JOB, domain_id, &status);
   assert(MTAPI_SUCCESS == status);
   handle_ = mtapi_queue_create(MTAPI_QUEUE_ID_NONE, job, &attr, &status);
+  // Handle MTAPI error status in appropriate exceptions
   if (status == MTAPI_SUCCESS) {
     return;
   } else if (status == MTAPI_ERR_QUEUE_LIMIT) {
     EMBB_THROW(embb::base::ErrorException,
       "mtapi::Queue could not be constructed, "
       "maximum number of queues exceeded");
+  } else if (status == MTAPI_ERR_JOB_INVALID) {
+    EMBB_THROW(embb::base::ErrorException,
+      "mtapi::Queue could not be constructed, "
+      "invalid job");
   } else {
     EMBB_THROW(embb::base::ErrorException,
       "mtapi::Queue could not be constructed");