Added session manager.

sdk/aquery.h

@@ -69,5 +69,7 @@ typedef void (*deallocator_t) (void*);
 extern void* Aalloc(unsigned long long sz);
 extern void Afree(void * mem);
 extern void register_memory(void* ptr, deallocator_t deallocator);
+extern void init_session(Context* cxt);
 
+#define __AQ_NO_SESSION__ void init_session(Context*) {}
 #endif

sdk/aquery_mem.cpp

@@ -25,3 +25,7 @@ void register_memory(void* ptr, deallocator_t deallocator){
     memmap->operator[](ptr) = deallocator;
 }
 
+void init_session(Context* cxt){
+    session = &cxt->current;
+   // session->memory_map = new std::unordered_map<void*, deallocator_t>();
+}

sdk/example.cpp

@@ -1,4 +1,5 @@
 #include "aquery.h"
+__AQ_NO_SESSION__
 #include "../server/table.h"
 
 __AQEXPORT__(ColRef<float>) mulvec(int a, ColRef<float> b){
@@ -7,4 +8,4 @@ __AQEXPORT__(ColRef<float>) mulvec(int a, ColRef<float> b){
 
 __AQEXPORT__(double) mydiv(int a, int b){
     return a / (double)b;
-}
+}