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.
100 lines
2.6 KiB
100 lines
2.6 KiB
/*
|
|
|
|
Copyright (c) 1997-1999 Microsoft Corporation
|
|
|
|
*/
|
|
|
|
#include "sdppch.h"
|
|
|
|
#include "sdpltran.h"
|
|
|
|
|
|
SDP_LINE_TRANSITION::SDP_LINE_TRANSITION(
|
|
IN LINE_TRANSITION_INFO *LineTransitionInfo,
|
|
IN DWORD NumStates
|
|
)
|
|
: m_IsValid(FALSE),
|
|
m_LineTransitionInfo(LineTransitionInfo),
|
|
m_NumStates(NumStates)
|
|
{
|
|
ASSERT(NULL != LineTransitionInfo);
|
|
ASSERT(0 < NumStates);
|
|
if ( (NULL == LineTransitionInfo) || (0 >= NumStates) )
|
|
{
|
|
return;
|
|
}
|
|
|
|
// verify each transition info structure
|
|
//
|
|
for ( UINT i=0; i < NumStates; i++ )
|
|
{
|
|
// check if the line state value is consistent with the corresponding entry
|
|
ASSERT(LineTransitionInfo[i].m_LineState == i);
|
|
if ( LineTransitionInfo[i].m_LineState != i )
|
|
{
|
|
return;
|
|
}
|
|
|
|
// check that the separator character string is initialized (NULL)
|
|
ASSERT(NULL == LineTransitionInfo[i].m_SeparatorChars);
|
|
if ( NULL != LineTransitionInfo[i].m_SeparatorChars )
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
m_IsValid = TRUE;
|
|
|
|
// prepare separator character arrays for each of the line transition states
|
|
for ( i=0; i < NumStates; i++ )
|
|
{
|
|
CHAR *SeparatorChars;
|
|
|
|
// allocate memory for the separator characters
|
|
try
|
|
{
|
|
SeparatorChars = new CHAR[LineTransitionInfo[i].m_NumTransitions];
|
|
}
|
|
catch(...)
|
|
{
|
|
SeparatorChars = NULL;
|
|
}
|
|
|
|
if( NULL == SeparatorChars)
|
|
{
|
|
LineTransitionInfo[i].m_SeparatorChars = NULL;
|
|
continue;
|
|
}
|
|
|
|
// copy each separator character into the character array
|
|
for ( UINT j=0; j < LineTransitionInfo[i].m_NumTransitions; j++ )
|
|
{
|
|
SeparatorChars[j] = LineTransitionInfo[i].m_Transitions[j].m_SeparatorChar;
|
|
}
|
|
|
|
LineTransitionInfo[i].m_SeparatorChars = SeparatorChars;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
SDP_LINE_TRANSITION::~SDP_LINE_TRANSITION(
|
|
)
|
|
{
|
|
// if the m_IsValid flag is set, then the separator character arrays must have
|
|
// been filled and need to be freed
|
|
if ( IsValid() )
|
|
{
|
|
for ( UINT i=0; i < m_NumStates; i++ )
|
|
{
|
|
// this check is necessary for situations in which new raised exception when
|
|
// allocating the character arrays in the constructor
|
|
if ( NULL != m_LineTransitionInfo[i].m_SeparatorChars )
|
|
{
|
|
delete m_LineTransitionInfo[i].m_SeparatorChars;
|
|
}
|
|
}
|
|
}
|
|
}
|