open62541/arch

To port to a new architecture you should follow this file:

1. Create a folder with your architecture, let's call it new_arch
2. In the CMakeLists.txt file located next to this file, add add_subdirectory(new_arch) at the end of it
3. Create a CMakeLists.txt file in the new_arch folder

4. Use the following template for it (remember that when you see new_arch you should replace with the name of your architecture)

   # ---------------------------------------------------
   # ---- Beginning of the CMakeLists.txt template -----
   # ---------------------------------------------------
       
   SET(SOURCE_GROUP ${SOURCE_GROUP}\\new_arch)
       
   ua_add_architecture("new_arch")
       
   if("${UA_ARCHITECTURE}" STREQUAL "new_arch")
       
       ua_include_directories(${CMAKE_CURRENT_SOURCE_DIR})
       ua_add_architecture_file(${CMAKE_CURRENT_SOURCE_DIR}/ua_clock.c)
           
       #
       # Add here below all the things that are specific for your architecture
       #
           
       #You can use the following available CMake functions:
            
       #ua_include_directories() include some directories specific to your architecture when compiling the open62541 stack
       #ua_architecture_remove_definitions() remove compiler flags from the general ../../CMakeLists.txt file that won't work with your architecture
       #ua_architecture_add_definitions() add compiler flags that your architecture needs
       #ua_architecture_append_to_library() add libraries to be linked to the open62541 that are needed by your architecture
       #ua_add_architecture_header() add header files to compilation (Don't add the file ua_architecture.h)
       #ua_add_architecture_file() add .c files to compilation    
           
   endif()
       
   # ---------------------------------------------------
   # ---- End of the CMakeLists.txt template -----
   # ---------------------------------------------------
   

5. Create a ua_clock.c file that implements the following functions defined in ua_types.h:

   UA_DateTime UA_DateTime_now(void); UA_Int64 UA_DateTime_localTimeUtcOffset(void); UA_DateTime UA_DateTime_nowMonotonic(void);

6. Create a file in the folder new_arch called ua_architecture.h

7. Use the following template for it: a: Change YEAR, YOUR_NAME and YOUR_COMPANY in the header b: Change NEW_ARCH at the beginning in PLUGINS_ARCH_NEW_ARCH_UA_ARCHITECTUREH for your own name in uppercase

   ```C /* This work is licensed under a Creative Commons CCZero 1.0 Universal License.

   • See http://creativecommons.org/publicdomain/zero/1.0/ for more information. *
   • Copyright YEAR (c) YOUR_NAME, YOUR_COMPANY */
     

   #ifndef PLUGINS_ARCH_NEW_ARCH_UA_ARCHITECTUREH #define PLUGINS_ARCH_NEW_ARCH_UA_ARCHITECTUREH

   /*

   • Define and include all that's needed for your architecture */
     

   /*

   • Define OPTVAL_TYPE for non windows systems. In doubt, use int //TODO: Is this really necessary */
     

   /*

   • Define the following network options */
     
     

   //#define UA_IPV6 1 //or 0 //#define UA_SOCKET //#define UA_INVALID_SOCKET //#define UA_ERRNO
   //#define UA_INTERRUPTED //#define UA_AGAIN //#define UA_EAGAIN //#define UA_WOULDBLOCK //#define UA_ERR_CONNECTION_PROGRESS //#define UA_INTERRUPTED

   /*

   • Define the ua_getnameinfo if your architecture supports it */
     

   /*

   • Use #define for the functions defined in ua_architecture_functions.h
   • or implement them in a ua_architecture_functions.c file and
   • put it in your new_arch folder and add it in the CMakeLists.txt file
   • using ua_add_architecture_file(${CMAKE_CURRENT_SOURCE_DIR}/ua_architecture_functions.c) */
     

   /*

   • Define UA_LOG_SOCKET_ERRNO_WRAP(LOG) which prints the string error given a char* errno_str variable
   • Do the same for UA_LOG_SOCKET_ERRNO_GAI_WRAP(LOG) for errors related to getaddrinfo */
     

   #include "ua_architecture_functions.h"

   #endif /* PLUGINS_ARCH_NEW_ARCH_UA_ARCHITECTUREH */

   ```