FbGuard< T > Class Template Reference

#include <qsql_firebird_helpers_p.h>

Collaboration diagram for FbGuard< T >:

Public Types
using	FreeFn = void (*)(T *)

Public Member Functions
Q_NODISCARD_CTOR	FbGuard (T *handle, FreeFn freeFn)
	~FbGuard ()
	FbGuard (const FbGuard &)=delete
FbGuard &	operator= (const FbGuard &)=delete
T *	get () const
T *	operator-> () const
	operator bool () const
T *	take ()
void	dismiss ()
template<typename CloseFn>
void	closeWith (CloseFn closeFn, bool rethrow=true)

Detailed Description

template<typename T>
class FbGuard< T >

Definition at line 58 of file qsql_firebird_helpers_p.h.

Member Typedef Documentation

FreeFn

template<typename T>

using FbGuard< T >::FreeFn = void (*)(T *)

Definition at line 61 of file qsql_firebird_helpers_p.h.

Constructor & Destructor Documentation

FbGuard() [1/2]

template<typename T>

Q_NODISCARD_CTOR FbGuard< T >::FbGuard ( T * handle, FreeFn freeFn )

inline

A discarded unnamed temporary would free the handle immediately while later code keeps using it — force the guard to be a named local.

Definition at line 66 of file qsql_firebird_helpers_p.h.

~FbGuard()

template<typename T>

FbGuard< T >::~FbGuard ( )

inline

Definition at line 67 of file qsql_firebird_helpers_p.h.

FbGuard() [2/2]

template<typename T>

FbGuard< T >::FbGuard ( const FbGuard< T > & )

delete

Intentionally scope-pinned: not copyable, and no move operations — ownership transfer goes through take() instead.

Member Function Documentation

closeWith()

template<typename T>

template<typename CloseFn>

void FbGuard< T >::closeWith ( CloseFn closeFn, bool rethrow = true )

inline

Graceful close. On success the guard is dismissed (close already released the interface). If closeFn throws, the destructor still frees the handle; the exception is rethrown unless rethrow == false (for noexcept cleanup paths that must not propagate).

Definition at line 90 of file qsql_firebird_helpers_p.h.

dismiss()

template<typename T>

void FbGuard< T >::dismiss ( )

inline

Definition at line 81 of file qsql_firebird_helpers_p.h.

get()

template<typename T>

T * FbGuard< T >::get ( ) const

inline

Definition at line 75 of file qsql_firebird_helpers_p.h.

operator bool()

template<typename T>

FbGuard< T >::operator bool ( ) const

inlineexplicit

Definition at line 77 of file qsql_firebird_helpers_p.h.

operator->()

template<typename T>

T * FbGuard< T >::operator-> ( ) const

inline

Definition at line 76 of file qsql_firebird_helpers_p.h.

operator=()

template<typename T>

FbGuard & FbGuard< T >::operator= ( const FbGuard< T > & )

delete

take()

template<typename T>

T * FbGuard< T >::take ( )

inline

Definition at line 80 of file qsql_firebird_helpers_p.h.

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The documentation for this class was generated from the following file:

• qtbase/src/plugins/sqldrivers/firebird/qsql_firebird_helpers_p.h (508f587717ef550368a8ce7120c1ba8caeabce96)