Leaked source code of windows server 2003
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
/*++
Copyright (C) 1996-1999 Microsoft Corporation
Module Name:
DBID.INL
History:
--*/ //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// every new DBID is null////-----------------------------------------------------------------------------inlineDBID::DBID(){ m_l = 0;
DEBUGONLY(++m_UsageCounter);}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// a DBID can be created from a valid LONG////-----------------------------------------------------------------------------inlineDBID::DBID( LONG l){ LTASSERT(l > 0);
m_l = l;
DEBUGONLY(++m_UsageCounter);}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// a DBID can be created from a valid other dbid////-----------------------------------------------------------------------------inlineDBID::DBID( const DBID& id){ ASSERT_VALID(&id);
m_l = id.m_l;
DEBUGONLY(++m_UsageCounter);}
inlineDBID::~DBID(){ DEBUGONLY(--m_UsageCounter);}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// sets the DBID to a valid value// only a null DBID can be set// any attempt to change a valid DBID will cause an assertion failure////-----------------------------------------------------------------------------inlinevoidDBID::Set( LONG l){ ASSERT_VALID(this); LTASSERT(l > 0); LTASSERT(m_l == 0);
m_l = l;}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// sets the DBID to a valid value// only a null DBID can be set// any attempt to change a valid DBID will cause an assertion failure////-----------------------------------------------------------------------------inlinevoidDBID::operator=( const DBID& id){ ASSERT_VALID(this); LTASSERT(m_l == 0); ASSERT_VALID(&id);
m_l = id.m_l;}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// LONG operator, the only way to get the value of a DBID, any attempt to get// the value of a null DBID will cause an assertion failure////-----------------------------------------------------------------------------inlineDBID::operator LONG () const{ ASSERT_VALID(this); LTASSERT(m_l > 0);
return m_l;}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// the only way to clear (make it null) the dbid must be explicit////-----------------------------------------------------------------------------inlinevoidDBID::Clear(){ ASSERT_VALID(this);
m_l = 0;}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// the only way to know if a dbid is null////-----------------------------------------------------------------------------inlineBOOLDBID::IsNull() const{ ASSERT_VALID(this);
return (m_l == 0);}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// == operator////-----------------------------------------------------------------------------inlineintDBID::operator==( const DBID &dbid) const{ ASSERT_VALID(this);
return m_l == dbid.m_l;}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//// != operator////-----------------------------------------------------------------------------inlineintDBID::operator!=( const DBID &dbid) const{ ASSERT_VALID(this);
return m_l != dbid.m_l;}
|
