add dummy receiver for testing without hardware

dummy_receiver.py

@@ -0,0 +1,53 @@
+import sysv_ipc #pip install sysv-ipc
+import pycstruct #pip install pycstruct
+
+
+str_buffer_size = 64
+msg_queue_key = 0x1B11193C0
+
+try:
+    mq = sysv_ipc.MessageQueue(msg_queue_key, sysv_ipc.IPC_CREAT)
+
+    while True:
+        message, mtype = mq.receive()
+        print("")
+        #print("*** New message received ***")
+       # print(f"Raw message: {message}")
+
+#uint8_t u8DriveIndex;
+#uint32_t u32DriveHours;
+#uint32_t u32DriveCycles;
+#uint32_t u32DriveError;
+#uint64_t u64DriveShredTimestamp;
+#uint64_t u64DriveShredDuration;
+#uint64_t u64DriveCapacity;
+#char caDriveState[STR_BUFFER_SIZE];
+#char caDriveModelFamiliy[STR_BUFFER_SIZE];
+#char caDriveModelName[STR_BUFFER_SIZE];
+#char caDriveSerialnumber[STR_BUFFER_SIZE];
+
+
+        driveData = pycstruct.StructDef()
+        driveData.add('utf-8', 'driveIndex', length=str_buffer_size)
+        driveData.add('utf-8', 'driveHours', length=str_buffer_size)
+        driveData.add('utf-8', 'driveCycles', length=str_buffer_size)
+        driveData.add('utf-8', 'driveErrors', length=str_buffer_size)
+        driveData.add('utf-8', 'driveShredTimestamp', length=str_buffer_size)
+        driveData.add('utf-8', 'driveShredDuration', length=str_buffer_size)
+        driveData.add('utf-8', 'driveCapacity', length=str_buffer_size)
+        driveData.add('utf-8', 'driveState', length=str_buffer_size)
+        driveData.add('utf-8', 'driveModelFamiliy', length=str_buffer_size)
+        driveData.add('utf-8', 'driveModelModel', length=str_buffer_size)
+        driveData.add('utf-8', 'driveSerialnumber', length=str_buffer_size)
+        driveData.add('utf-8', 'driveReHddVersion', length=str_buffer_size)
+        
+        # Dictionary representation
+        result = driveData.deserialize(message)
+        print('Dictionary object:')
+        print(str(result))
+
+
+except sysv_ipc.ExistentialError:
+    print("ERROR: message queue creation failed")
+
+