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rtupdesc.c
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rtupdesc.c
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#include "rtupdesc.h"
static int obj_count = 0;
RTupDesc *rtupdesc_ctor(lua_State *state, TupleDesc tupdesc)
{
void* p;
RTupDesc* rtupdesc = 0;
MTOLUA(state);
p = palloc(sizeof(RTupDesc));
if (p){
rtupdesc = (RTupDesc*)p;
rtupdesc->ref_count = 1;
rtupdesc->tupdesc = CreateTupleDescCopy(tupdesc);
obj_count += 1;
rtupdesc->weakNodeStk = rtds_push_current(p);
}
MTOPG;
return rtupdesc;
}
RTupDesc *rtupdesc_ref(RTupDesc *rtupdesc)
{
if(rtupdesc)
rtupdesc->ref_count += 1;
return rtupdesc;
}
RTupDesc *rtupdesc_unref(RTupDesc *rtupdesc)
{
if(rtupdesc){
rtupdesc->ref_count -= 1;
if (rtupdesc->ref_count == 0){
rtupdesc_dtor(rtupdesc);
return NULL;
}
}
return rtupdesc;
}
void rtupdesc_freedesc(RTupDesc *rtupdesc)
{
if (rtupdesc && rtupdesc->tupdesc){
FreeTupleDesc(rtupdesc->tupdesc);
rtupdesc->tupdesc = NULL;
obj_count -= 1;
}
}
TupleDesc rtupdesc_gettup(RTupDesc *rtupdesc)
{
return (rtupdesc ? rtupdesc->tupdesc : NULL);
}
void rtupdesc_dtor(RTupDesc *rtupdesc)
{
if(rtupdesc){
rtds_remove_node(rtupdesc->weakNodeStk);
if (rtupdesc->tupdesc){
FreeTupleDesc(rtupdesc->tupdesc);
rtupdesc->tupdesc = NULL;
obj_count -= 1;
}
pfree(rtupdesc);
}
}
int rtupdesc_obj_count(void)
{
return obj_count;
}