Message Queue with per priority memory allocation

Os/Generic/CMakeLists.txt

@@ -1,6 +1,44 @@
 add_fprime_subdirectory("${CMAKE_CURRENT_LIST_DIR}/Types")
 add_custom_target("${FPRIME_CURRENT_MODULE}")
 
+#### PriorityMemQueue (AtomicQueue-based) ####
+register_fprime_module(
+    Os_Generic_PriorityMemQueue_Implementation
+  SOURCES
+    "${CMAKE_CURRENT_LIST_DIR}/PriorityMemQueue.cpp"
+  HEADERS
+    "${CMAKE_CURRENT_LIST_DIR}/PriorityMemQueue.hpp"
+  DEPENDS
+    Fw_Types
+    Os_Generic_Types
+    Os_CountingSemaphore
+)
+register_fprime_implementation(
+    Os_Generic_PriorityMemQueue
+  SOURCES
+    "${CMAKE_CURRENT_LIST_DIR}/DefaultPriorityMemQueue.cpp"
+  IMPLEMENTS
+    Os_Queue
+  DEPENDS
+    Fw_Types
+    Os_Generic_PriorityMemQueue_Implementation
+)
+
+register_fprime_ut(
+    PriorityMemQueue_UnitTest
+  SOURCES
+    "${CMAKE_CURRENT_LIST_DIR}/test/ut/PriorityMemQueueTests.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/test/ut/PriorityMemQueueInputValidationTests.cpp"
+  DEPENDS
+    Fw_Types
+    Fw_Time
+    Os
+    STest
+    Os_Generic_PriorityMemQueue_Implementation
+  CHOOSES_IMPLEMENTATIONS
+    Os_Generic_PriorityMemQueue
+)
+
 #### Os/Generic/Queue Section ####
 register_fprime_module(
     Os_Generic_PriorityQueue_Implementation

Os/Generic/DefaultPriorityMemQueue.cpp

@@ -0,0 +1,20 @@
+// ======================================================================
+// \title  Os/Generic/DefaultPriorityMemQueue.cpp
+// \author B. Duckett
+// \brief  cpp file sets default Os::Queue to generic priority queue implementation via linker
+//
+// \copyright
+// Copyright 2026, by the California Institute of Technology.
+// ALL RIGHTS RESERVED.  United States Government Sponsorship
+// acknowledged.
+// ======================================================================
+#include "Os/Delegate.hpp"
+#include "Os/Queue.hpp"
+#include "PriorityMemQueue.hpp"
+
+namespace Os {
+QueueInterface* QueueInterface::getDelegate(QueueHandleStorage& aligned_new_memory) {
+    return Os::Delegate::makeDelegate<QueueInterface, Os::Generic::PriorityMemQueue, QueueHandleStorage>(
+        aligned_new_memory);
+}
+}  // namespace Os