Add facility to adjust the services and and other features supported via config.h. This is to reduce code size in embedded builds where the compiler does not do a great job in removing functions that are never called. This is particularly useful for simple server only applications where decoding of response packets and encoding of requests are not required for example.

Also added possibility for RMP of encoding large items in-line in the response packet so that the object RP handlers know how much space they really have without the need for a full APDU buffer being maintained.
2012-04-30 10:14:18 +00:00
parent 44055ff37f
commit 2e51778790
17 changed files with 148 additions and 17 deletions
@@ -160,4 +160,87 @@
 #define MAX_OCTET_STRING_BYTES (MAX_APDU-6)
 #endif

+/*
+** Control the selection of services etc to enable code size reduction for those
+** compiler suites which do not handle removing of unused functions in modules
+** so well.
+**
+** We will start with the A type services code first as these are least likely
+** to be required in embedded systems using the stack.
+*/
+
+/*
+** First we see if this is a test build and enable all the services as they
+** may be required.
+** 
+** Note: I've left everything enabled here in the main config.h. You would
+** use a local copy of config.h with settings configured for your needs to 
+** make use of the code space reductions.
+**/
+
+#ifdef TEST
+ #define BACNET_SVC_I_HAVE_A    1
+ #define BACNET_SVC_WP_A        1
+ #define BACNET_SVC_RP_A        1
+ #define BACNET_SVC_RPM_A       1
+ #define BACNET_SVC_DCC_A       1
+ #define BACNET_SVC_RD_A        1
+ #define BACNET_SVC_SERVER      0
+ #define BACNET_USE_OCTETSTRING 1
+ #define BACNET_USE_DOUBLE      1
+ #define BACNET_USE_SIGNED      1
+#else  /* Otherwise define our working set - all enabled here to avoid breaking things */
+ #define BACNET_SVC_I_HAVE_A    1
+ #define BACNET_SVC_WP_A        1
+ #define BACNET_SVC_RP_A        1
+ #define BACNET_SVC_RPM_A       1
+ #define BACNET_SVC_DCC_A       1
+ #define BACNET_SVC_RD_A        1
+ #define BACNET_SVC_SERVER      0
+ #define BACNET_USE_OCTETSTRING 1
+ #define BACNET_USE_DOUBLE      1
+ #define BACNET_USE_SIGNED      1
+#endif
+
+/* Do them one by one */
+ #ifndef BACNET_SVC_I_HAVE_A    /* Do we send I_Have requests? */
+  #define BACNET_SVC_I_HAVE_A 0
+ #endif
+
+ #ifndef BACNET_SVC_WP_A        /* Do we send WriteProperty requests? */
+  #define BACNET_SVC_WP_A 0
+ #endif
+
+ #ifndef BACNET_SVC_RP_A        /* Do we send ReadProperty requests? */
+  #define BACNET_SVC_RP_A 0
+ #endif
+
+ #ifndef BACNET_SVC_RPM_A      /* Do we send ReadPropertyMultiple requests? */
+  #define BACNET_SVC_RPM_A 0
+ #endif
+
+ #ifndef BACNET_SVC_DCC_A      /* Do we send DeviceCommunicationControl requests? */
+  #define BACNET_SVC_DCC_A 0
+ #endif
+
+ #ifndef BACNET_SVC_RD_A       /* Do we send ReinitialiseDevice requests? */
+  #define BACNET_SVC_RD_A 0
+ #endif
+
+ #ifndef BACNET_SVC_SERVER     /* Are we a pure server type device? */
+  #define BACNET_SVC_SERVER 1
+ #endif
+
+ #ifndef BACNET_USE_OCTETSTRING    /* Do we need any octet strings? */
+  #define BACNET_USE_OCTETSTRING 0
+ #endif
+
+ #ifndef BACNET_USE_DOUBLE    /* Do we need any doubles? */
+  #define BACNET_USE_DOUBLE 0
+ #endif
+
+ #ifndef BACNET_USE_SIGNED    /* Do we need any signed integers */
+  #define BACNET_USE_SIGNED 0
+ #endif
+
 #endif