Example DUK_OPT_EXTSTR_FREE() for ajduk

Makefile

@@ -823,9 +823,11 @@ CCOPTS_AJDUK += -DDUK_OPT_HEAPPTR16
 CCOPTS_AJDUK += '-DDUK_OPT_HEAPPTR_ENC16(p)=ajsheap_enc16(p)'
 CCOPTS_AJDUK += '-DDUK_OPT_HEAPPTR_DEC16(x)=ajsheap_dec16(x)'
 CCOPTS_AJDUK += -DDUK_OPT_EXTERNAL_STRINGS
-CCOPTS_AJDUK += '-DDUK_OPT_EXTSTR_INTERN_CHECK(ptr,len)=ajsheap_extstr_check_1((ptr),(len))'
-#CCOPTS_AJDUK += '-DDUK_OPT_EXTSTR_INTERN_CHECK(ptr,len)=ajsheap_extstr_check_2((ptr),(len))'
-CCOPTS_AJDUK += '-DDUK_OPT_DECLARE=extern uint8_t *ajsheap_ram; extern duk_uint16_t ajsheap_enc16(void *p); extern void *ajsheap_dec16(duk_uint16_t x); extern const void *ajsheap_extstr_check_1(const void *ptr, duk_size_t len); extern const void *ajsheap_extstr_check_2(const void *ptr, duk_size_t len);'
+#CCOPTS_AJDUK += '-DDUK_OPT_EXTSTR_INTERN_CHECK(ptr,len)=ajsheap_extstr_check_1((ptr),(len))'
+#CCOPTS_AJDUK += '-DDUK_OPT_EXTSTR_FREE(ptr)=ajsheap_extstr_free_1((ptr))'
+CCOPTS_AJDUK += '-DDUK_OPT_EXTSTR_INTERN_CHECK(ptr,len)=ajsheap_extstr_check_2((ptr),(len))'
+CCOPTS_AJDUK += '-DDUK_OPT_EXTSTR_FREE(ptr)=ajsheap_extstr_free_2((ptr))'
+CCOPTS_AJDUK += '-DDUK_OPT_DECLARE=extern uint8_t *ajsheap_ram; extern duk_uint16_t ajsheap_enc16(void *p); extern void *ajsheap_dec16(duk_uint16_t x); extern const void *ajsheap_extstr_check_1(const void *ptr, duk_size_t len); extern const void *ajsheap_extstr_check_2(const void *ptr, duk_size_t len); extern void ajsheap_extstr_free_1(const void *ptr); extern void ajsheap_extstr_free_2(const void *ptr);'
 #CCOPTS_AJDUK += -DDUK_OPT_DEBUG -DDUK_OPT_DPRINT
 #CCOPTS_AJDUK += -DDUK_OPT_DEBUG -DDUK_OPT_DPRINT -DDUK_OPT_DDPRINT -DDUK_OPT_DDDPRINT
 

examples/cmdline/duk_cmdline_ajduk.c

@@ -260,6 +260,13 @@ const void *ajsheap_extstr_check_1(const void *ptr, duk_size_t len) {
 	return (const void *) ret;
 }
 
+void ajsheap_extstr_free_1(void *ptr) {
+	(void) ptr;
+#if 0
+	printf("ajsheap_extstr_free_1: freeing extstr %p\n", ptr);
+#endif
+}
+
 /*
  *  Simplified example of an external strings strategy where a set of strings
  *  is gathered during application compile time and baked into the application
@@ -268,7 +275,7 @@ const void *ajsheap_extstr_check_1(const void *ptr, duk_size_t len) {
  *  Duktape built-in strings are available from duk_build_meta.json, see
  *  util/duk_meta_to_strarray.py.  There may also be a lot of application
  *  specific strings, e.g. those used by application specific APIs.  These
- *  must be gathered through some other means.
+ *  must be gathered through some other means, see e.g. util/scan_strings.py.
  */
 
 static const char *strdata_duk_builtin_strings[] = {
@@ -664,6 +671,13 @@ const void *ajsheap_extstr_check_2(const void *ptr, duk_size_t len) {
 	return NULL;
 }
 
+void ajsheap_extstr_free_2(void *ptr) {
+	(void) ptr;
+#if 0
+	printf("ajsheap_extstr_free_2: freeing extstr %p\n", ptr);
+#endif
+}
+
 #else  /* DUK_CMDLINE_AJSHEAP */
 
 int ajs_dummy = 0;  /* to avoid empty source file */