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safe_ptr have no overhead when KAK_DEBUG is not defined

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This commit is contained in:
Maxime Coste 2013-02-28 18:54:15 +01:00
parent 298926a16e
commit 3a60e633a4
1 changed files with 27 additions and 12 deletions
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39
src/utils.hh
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@ -60,33 +60,46 @@ class safe_ptr
{
public:
safe_ptr() : m_ptr(nullptr) {}
explicit safe_ptr(T* ptr) : m_ptr(ptr) { if (ptr) ptr->inc_safe_count(); }
explicit safe_ptr(T* ptr) : m_ptr(ptr)
{
#ifdef KAK_DEBUG
if (m_ptr)
m_ptr->inc_safe_count();
#endif
}
safe_ptr(const safe_ptr& other) : safe_ptr(other.m_ptr) {}
safe_ptr(safe_ptr&& other) : m_ptr(other.m_ptr) { other.m_ptr = nullptr; }
~safe_ptr() { if (m_ptr) m_ptr->dec_safe_count(); }
~safe_ptr()
{
#ifdef KAK_DEBUG
if (m_ptr)
m_ptr->dec_safe_count();
#endif
}
safe_ptr& operator=(const safe_ptr& other)
{
#ifdef KAK_DEBUG
if (m_ptr != other.m_ptr)
{
if (m_ptr)
m_ptr->dec_safe_count();
m_ptr = other.m_ptr;
if (m_ptr)
m_ptr->inc_safe_count();
if (other.m_ptr)
other.m_ptr->inc_safe_count();
}
#endif
m_ptr = other.m_ptr;
return *this;
}
safe_ptr& operator=(safe_ptr&& other)
{
if (m_ptr != other.m_ptr)
{
if (m_ptr)
m_ptr->dec_safe_count();
m_ptr = other.m_ptr;
other.m_ptr = nullptr;
}
#ifdef KAK_DEBUG
if (m_ptr)
m_ptr->dec_safe_count();
#endif
m_ptr = other.m_ptr;
other.m_ptr = nullptr;
return *this;
}
@ -114,6 +127,7 @@ private:
class SafeCountable
{
public:
#ifdef KAK_DEBUG
SafeCountable() : m_count(0) {}
~SafeCountable() { assert(m_count == 0); }
@ -122,6 +136,7 @@ public:
private:
mutable int m_count;
#endif
};
// *** Containers helpers ***