capi: Instance memory access

Author: gumb0

include/fizzy/fizzy.h

@@ -83,6 +83,10 @@ struct FizzyInstance* fizzy_instantiate(struct FizzyModule* module,
 /// Free resources associated with the instance.
 void fizzy_free_instance(struct FizzyInstance* instance);
 
+uint8_t* fizzy_get_instance_memory_data(struct FizzyInstance* instance);
+
+size_t fizzy_get_instance_memory_size(struct FizzyInstance* instance);
+
 /// Execute module function.
 ///
 /// @param instance     Pointer to module instance.

lib/fizzy/capi.cpp

@@ -146,6 +146,24 @@ void fizzy_free_instance(FizzyInstance* instance)
     delete unwrap(instance);
 }
 
+uint8_t* fizzy_get_instance_memory_data(struct FizzyInstance* instance)
+{
+    auto& memory = unwrap(instance)->memory;
+    if (!memory)
+        return nullptr;
+
+    return memory->data();
+}
+
+size_t fizzy_get_instance_memory_size(struct FizzyInstance* instance)
+{
+    auto& memory = unwrap(instance)->memory;
+    if (!memory)
+        return 0;
+
+    return memory->size();
+}
+
 FizzyExecutionResult fizzy_execute(
     FizzyInstance* instance, uint32_t func_idx, const FizzyValue* args, size_t args_size, int depth)
 {