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copyonwrite() on nested LA types will recursively call element copyonwrites even if the top type had count=1

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Jiri Pittner
2024-04-03 22:12:08 +02:00
parent 80f915946b
commit 8bbbaa5bae
5 changed files with 43 additions and 8 deletions
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11
vec.h
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@@ -177,7 +177,7 @@ public:
#endif
//! create separate copy of the data corresponding to this vector
void copyonwrite(bool detachonly=false);
void copyonwrite(bool detachonly=false, bool deep=true);
//! purge this vector
void clear() { copyonwrite(LA_traits<T>::is_plaindata()); LA_traits<T>::clear(v, nn); };
@@ -1127,13 +1127,20 @@ NRVec<T>::~NRVec() {
* make own copy of the underlying data connected with this vector
******************************************************************************/
template <typename T>
void NRVec<T>::copyonwrite(bool detachonly) {
void NRVec<T>::copyonwrite(bool detachonly,bool deep) {
if(!count)
{
if(nn) laerror("nonempty vector without reference count encountered");
if(_LA_warn_empty_copyonwrite) std::cout <<"Warning: copyonwrite of empty vector\n";
return;
}
if(*count == 1 && !LA_traits<T>::is_plaindata() && !detachonly && deep) //type-nested copyonwrite
{
#ifdef CUDALA
if(location != cpu) laerror("nested types not supported on gpu memory");
#endif
for(int i=0; i<nn; ++i) LA_traits<T>::copyonwrite(v[i]);
}
if(*count > 1) {
(*count)--;
count = new int;