80 lines
1.4 KiB
C
80 lines
1.4 KiB
C
|
#ifndef HV_SCOPE_H_
|
||
|
|
#define HV_SCOPE_H_
|
||
|
|
|
||
|
|
#include <functional>
|
||
|
|
typedef std::function<void()> Function;
|
||
|
|
|
||
|
|
#include "hdef.h"
|
||
|
|
|
||
|
|
// same as golang defer
|
||
|
|
class Defer {
|
||
|
|
public:
|
||
|
|
Defer(Function&& fn) : _fn(std::move(fn)) {}
|
||
|
|
~Defer() { if(_fn) _fn();}
|
||
|
|
private:
|
||
|
|
Function _fn;
|
||
|
|
};
|
||
|
|
#define defer(code) Defer STRINGCAT(_defer_, __LINE__)([&](){code});
|
||
|
|
|
||
|
|
class ScopeCleanup {
|
||
|
|
public:
|
||
|
|
template<typename Fn, typename... Args>
|
||
|
|
ScopeCleanup(Fn&& fn, Args&&... args) {
|
||
|
|
_cleanup = std::bind(std::forward<Fn>(fn), std::forward<Args>(args)...);
|
||
|
|
}
|
||
|
|
|
||
|
|
~ScopeCleanup() {
|
||
|
|
_cleanup();
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
Function _cleanup;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
class ScopeFree {
|
||
|
|
public:
|
||
|
|
ScopeFree(T* p) : _p(p) {}
|
||
|
|
~ScopeFree() {SAFE_FREE(_p);}
|
||
|
|
private:
|
||
|
|
T* _p;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
class ScopeDelete {
|
||
|
|
public:
|
||
|
|
ScopeDelete(T* p) : _p(p) {}
|
||
|
|
~ScopeDelete() {SAFE_DELETE(_p);}
|
||
|
|
private:
|
||
|
|
T* _p;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
class ScopeDeleteArray {
|
||
|
|
public:
|
||
|
|
ScopeDeleteArray(T* p) : _p(p) {}
|
||
|
|
~ScopeDeleteArray() {SAFE_DELETE_ARRAY(_p);}
|
||
|
|
private:
|
||
|
|
T* _p;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
class ScopeRelease {
|
||
|
|
public:
|
||
|
|
ScopeRelease(T* p) : _p(p) {}
|
||
|
|
~ScopeRelease() {SAFE_RELEASE(_p);}
|
||
|
|
private:
|
||
|
|
T* _p;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
class ScopeLock {
|
||
|
|
public:
|
||
|
|
ScopeLock(T& mutex) : _mutex(mutex) {_mutex.lock();}
|
||
|
|
~ScopeLock() {_mutex.unlock();}
|
||
|
|
private:
|
||
|
|
T& _mutex;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif // HV_SCOPE_H_
|