Remove the test channel on the system at the end

python/blc_channel.py

@@ -29,6 +29,8 @@ class BlcChannel:
     lib.blc_channel_wait_ack_data.argtypes = [ c_void_p ] 
     lib.blc_channel_post_new_data.argtypes = [ c_void_p ]
     lib.blc_channel_post_ack_data.argtypes = [ c_void_p ]
+    lib.blc_channel_remove.argtypes = [ c_void_p ]
+    
     
     types={ 'UIN8': c_uint8, 'INT8': c_int8, 'UI16': c_uint16, 'INT16': c_int16, 'UI32': c_uint32, 'IN32': c_int32, 'UI64': c_uint64, 'IN64': c_int64, 'FL32': c_float, 'FL64': c_double}
 
@@ -118,8 +120,12 @@ class BlcChannel:
     def post_ack_data(self):
         BlcChannel.lib.blc_channel_post_ack_data(self.channel)
     
+    def remove(self):
+        BlcChannel.lib.blc_channel_remove(self.channel)
+    
     def __del__(self):
-        BlcChannel.lib.blc_channel_delete(self.channel)
+        BlcChannel.lib.blc_channel_delete(self.channel) #Fre the local object but do not destroy the system shared memory
+    
 
     @property
     def list(self):
@@ -128,9 +134,17 @@ class BlcChannel:
         return data_list
 
 if __name__ == "__main__":
-    # EXEMPLE
+    print()
+    print("EXEMPLE: blc_channel")
+    print("We create a blc_channel of type unsigned char and size 3x2 on the POSIX system (shared memory)")
     channel = BlcChannel("/python_test", os.O_RDWR, 'UIN8', 'RGB3', [3, 2])
-    #channel.wait_new_data() #This needs data to be named .data
+    print("We write 7 in column 2")
+    channel.array[2]=7
+    print("We open the shared blc_channel to read it")
     channel_read = BlcChannel("/python_test", os.O_RDONLY)
+    print("We check that we have the same values")
     print("type",channel_read.type, "format", channel_read.format, "length", channel_read.total_length)
     print(channel_read.array[:channel.total_length])
+    print("We remove our shared memory from the system")
+    channel.remove()
+