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Diffstat (limited to 'src/oldpool_func.h')
-rw-r--r-- | src/oldpool_func.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/oldpool_func.h b/src/oldpool_func.h new file mode 100644 index 000000000..e4d1c47d5 --- /dev/null +++ b/src/oldpool_func.h @@ -0,0 +1,34 @@ +/* $Id$ */ + +#ifndef OLDPOOL_FUNC_H + +#include "oldpool.h" + +/** + * Allocate a pool item; possibly allocate a new block in the pool. + * @param first the first pool item to start searching + * @pre first <= Tpool->GetSize() + * @return the allocated pool item (or NULL when the pool is full). + */ +template<typename T, typename Tid, OldMemoryPool<T> *Tpool> T *PoolItem<T, Tid, Tpool>::AllocateSafeRaw(uint &first) +{ + uint last_minus_one = Tpool->GetSize() - 1; + + for (T *t = Tpool->Get(first); t != NULL; t = (t->index < last_minus_one) ? Tpool->Get(t->index + 1U) : NULL) { + if (!t->IsValid()) { + first = t->index; + Tid index = t->index; + + memset(t, 0, Tpool->item_size); + t->index = index; + return t; + } + } + + /* Check if we can add a block to the pool */ + if (Tpool->AddBlockToPool()) return AllocateRaw(first); + + return NULL; +} + +#endif /* OLDPOOL_FUNC_H */ |