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"Fix" ScriptVariant_t::Free()

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Type FIELD_HSCRIPT is removed, it never sets SV_FREE.

All dynamic memory is now free`d via free(). For strdup(), this would be
the conformant way in standard C++. It matters not in Source, since both
use the same global allocator of the engine, but it is tidier.
Vector and QAngle are now allocated via malloc() instead of new to
provide symmetry.
This commit is contained in:
Alexander 'z33ky' Hirsch 2024-09-06 23:25:27 +02:00
parent c9dd357470
commit 80f19601ee
2 changed files with 98 additions and 19 deletions
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100
sp/src/public/vscript/ivscript.h
View File

@ -389,13 +389,49 @@ struct ScriptVariant_t
ScriptVariant_t( bool val ) : m_flags( 0 ), m_type( FIELD_BOOLEAN ) { m_bool = val; }
ScriptVariant_t( HSCRIPT val ) : m_flags( 0 ), m_type( FIELD_HSCRIPT ) { m_hScript = val; }
ScriptVariant_t( const Vector &val, bool bCopy = false ) : m_flags( 0 ), m_type( FIELD_VECTOR ) { if ( !bCopy ) { m_pVector = &val; } else { m_pVector = new Vector( val ); m_flags |= SV_FREE; } }
ScriptVariant_t( const Vector *val, bool bCopy = false ) : m_flags( 0 ), m_type( FIELD_VECTOR ) { if ( !bCopy ) { m_pVector = val; } else { m_pVector = new Vector( *val ); m_flags |= SV_FREE; } }
ScriptVariant_t( const char *val , bool bCopy = false ) : m_flags( 0 ), m_type( FIELD_CSTRING ) { if ( !bCopy ) { m_pszString = val; } else { m_pszString = strdup( val ); m_flags |= SV_FREE; } }
ScriptVariant_t( const Vector &val, bool bCopy = false ) : m_flags( 0 ), m_type( FIELD_VECTOR )
{
if ( !bCopy )
{
m_pVector = &val;
}
else
{
m_pVector = (Vector*)malloc( sizeof( Vector ) );
new ( (Vector*)m_pVector ) Vector( val );
m_flags |= SV_FREE;
}
}
ScriptVariant_t( const Vector *val, bool bCopy = false ) : ScriptVariant_t( *val ) { }
ScriptVariant_t( const char *val , bool bCopy = false ) : m_flags( 0 ), m_type( FIELD_CSTRING )
{
if ( !bCopy )
{
m_pszString = val;
}
else
{
m_pszString = strdup( val );
m_flags |= SV_FREE;
}
}
#ifdef MAPBASE_VSCRIPT
ScriptVariant_t( const QAngle &val, bool bCopy = false ) : m_flags( 0 ), m_type( FIELD_VECTOR ) { if ( !bCopy ) { m_pAngle = &val; } else { m_pAngle = new QAngle( val ); m_flags |= SV_FREE; } }
ScriptVariant_t( const QAngle *val, bool bCopy = false ) : m_flags( 0 ), m_type( FIELD_VECTOR ) { if ( !bCopy ) { m_pAngle = val; } else { m_pAngle = new QAngle( *val ); m_flags |= SV_FREE; } }
ScriptVariant_t( const QAngle &val, bool bCopy = false ) : m_flags( 0 ), m_type( FIELD_VECTOR )
{
if ( !bCopy )
{
m_pAngle = &val;
}
else
{
m_pAngle = (QAngle*)malloc( sizeof( QAngle ) );
new ( (QAngle*)m_pAngle ) QAngle( val );
m_flags |= SV_FREE;
}
}
ScriptVariant_t( const QAngle *val, bool bCopy = false ) : ScriptVariant_t( *val ) { }
ScriptVariant_t( Vector &&val ) : ScriptVariant_t( val, true ) { }
ScriptVariant_t( QAngle &&val ) : ScriptVariant_t( val, true ) { }
@ -427,11 +463,34 @@ struct ScriptVariant_t
void operator=( const QAngle &vec ) { m_type = FIELD_VECTOR; m_pAngle = &vec; }
void operator=( const QAngle *vec ) { m_type = FIELD_VECTOR; m_pAngle = vec; }
void operator=( Vector &&vec ) { m_type = FIELD_VECTOR; m_pVector = new Vector( vec ); m_flags |= SV_FREE; }
void operator=( QAngle &&vec ) { m_type = FIELD_VECTOR; m_pAngle = new QAngle( vec ); m_flags |= SV_FREE; }
void operator=( Vector &&vec )
{
m_type = FIELD_VECTOR;
m_pVector = (Vector*)malloc( sizeof( Vector ) );
new ( (Vector*)m_pVector ) Vector( vec );
m_flags |= SV_FREE;
}
void operator=( QAngle &&ang )
{
m_type = FIELD_VECTOR;
m_pAngle = (QAngle*)malloc( sizeof( QAngle ) );
new ( (QAngle*)m_pAngle ) QAngle( ang );
m_flags |= SV_FREE;
}
#endif
void Free() { if ( ( m_flags & SV_FREE ) && ( m_type == FIELD_HSCRIPT || m_type == FIELD_VECTOR || m_type == FIELD_CSTRING ) ) delete m_pszString; } // Generally only needed for return results
void Free()
{
// Generally only needed for return results
if ( ! ( m_flags & SV_FREE ) )
{
return;
}
AssertMsg( m_type == FIELD_CSTRING || m_type == FIELD_VECTOR, "Don't know how to free script variant of type %d", m_type );
free( (void*)m_pszString );
}
template <typename T>
T Get()
@ -532,11 +591,13 @@ struct ScriptVariant_t
bool AssignTo( ScriptVariant_t *pDest )
{
pDest->m_type = m_type;
if ( m_flags & SV_FREE )
{
if ( m_type == FIELD_VECTOR )
{
pDest->m_pVector = new Vector;
((Vector *)(pDest->m_pVector))->Init( m_pVector->x, m_pVector->y, m_pVector->z );
pDest->m_flags |= SV_FREE;
pDest->m_pVector = (Vector*)malloc( sizeof( Vector ) );
pDest->EmplaceAllocedVector( *m_pVector );
m_flags |= SV_FREE;
}
else if ( m_type == FIELD_CSTRING )
{
@ -545,11 +606,21 @@ struct ScriptVariant_t
}
else
{
Assert( false );
pDest->m_int = m_int;
pDest->m_flags &= ~SV_FREE;
}
}
else
{
pDest->m_int = m_int;
pDest->m_flags &= ~SV_FREE;
}
return false;
}
void EmplaceAllocedVector( const Vector &vec );
union
{
int m_int;
@ -571,6 +642,13 @@ struct ScriptVariant_t
private:
};
#include "tier0/memdbgoff.h"
inline void ScriptVariant_t::EmplaceAllocedVector( const Vector &vec )
{
new ( (Vector*)m_pVector ) Vector( vec );
}
#include "tier0/memdbgon.h"
#define SCRIPT_VARIANT_NULL ScriptVariant_t()
#ifdef MAPBASE_VSCRIPT

5
sp/src/vscript/vscript_squirrel.cpp
View File

@ -1247,7 +1247,7 @@ bool getVariant(HSQUIRRELVM vm, SQInteger idx, ScriptVariant_t& variant)
{
return false;
}
char* buffer = new char[size + 1];
char* buffer = (char*)malloc(size + 1);
V_memcpy(buffer, val, size);
buffer[size] = 0;
variant = buffer;
@ -1262,7 +1262,8 @@ bool getVariant(HSQUIRRELVM vm, SQInteger idx, ScriptVariant_t& variant)
tag == TYPETAG_VECTOR &&
SQ_SUCCEEDED(sq_getinstanceup(vm, idx, (SQUserPointer*)&v, TYPETAG_VECTOR)))
{
variant = new Vector(*v);
variant = (Vector*)malloc(sizeof(Vector));
variant.EmplaceAllocedVector(*v);
variant.m_flags |= SV_FREE;
return true;
}