static ULONG
set_file_pointer (Tchannel channel, ULONG type, LONG distance)
{
ULONG fp;
if ((CHANNEL_TYPE (channel)) != channel_type_file)
OS2_error_system_call (ERROR_INVALID_HANDLE, syscall_dos_set_file_ptr);
STD_API_CALL
(dos_set_file_ptr, ((CHANNEL_HANDLE (channel)), distance, type, (&fp)));
return (fp);
}
off_t
OS_file_length (Tchannel channel)
{
FILESTATUS3 buffer;
if ((CHANNEL_TYPE (channel)) != channel_type_file)
OS2_error_system_call (ERROR_INVALID_HANDLE, syscall_dos_query_file_info);
STD_API_CALL
(dos_query_file_info,
((CHANNEL_HANDLE (channel)), FIL_STANDARD,
(&buffer), (sizeof (buffer))));
return (buffer.cbFile);
}
DevChannelMath::DevChannelMath(quint32 chanCoder, QObject *parent) :
Channel(chanCoder, parent)
{
MODBUS_REGISTER_MAP *pModbusRegMap;
quint16 chanType, uninNum, moduleIndex, number;
chanType = CHANNEL_TYPE(m_chanCoder); //通道类型
uninNum = CHANNEL_UNIT(m_chanCoder); //单元号
moduleIndex = CHANNEL_MODULE(m_chanCoder); //卡槽号
number = CHANNEL_NUM(m_chanCoder) - 1; //通道号
Q_ASSERT(chanType==Channel_Type_Math && uninNum==0 && moduleIndex==0 && number<MAIN_UNIT_MATH_CHAN_NUM_PRE);
pModbusRegMap = const_cast<MODBUS_REGISTER_MAP*>(static_cast<MODBUS_REGISTER_MAP const *>(DevShareMem.constData()));
m_pData = (float *)&pModbusRegMap->inputReg_MainUnit_Math_Data_Float32[number<<1];
m_pStatus = &pModbusRegMap->inputReg_MainUnit_Math_Status_Int16[number];
m_pConfig = &DevConfigPtr->chanMath[number];
p_calculateData = (float *)&g_originDataMap.inputReg_MainUnit_Math_Data_Float32[number<<1];
p_chanStatus = &g_originDataMap.inputReg_MainUnit_Math_Status_Int16[number];
//表达式初始化
if (m_pConfig->expressConfig.expSwtich) {
QByteArray expArray((const char *)m_pConfig->expressConfig.expExpression);
if (expArray.isEmpty()) {
p_expAnalysis = NULL;
} else {
p_expAnalysis = new MathExpAnalysis(number+1, expArray);
if (p_expAnalysis) {
if (!p_expAnalysis->isExpValid()) {
delete p_expAnalysis;
p_expAnalysis = NULL;
}
} else {
qDebug("Error: Mem alloc Failed[%s]\n", __func__);
}
}
} else {
p_expAnalysis = NULL;
}
m_sampleCount = 0;
m_math_DelayUpper = 0;
m_math_DelayDowner = 0;
}
static Tchannel
open_file_noerror (const char * filename, ULONG attr, ULONG flags,
unsigned int mode)
{
HFILE handle;
ULONG action;
if ((dos_open (((char *) filename), (&handle), (&action), 0, attr, flags,
(OS2_OPEN_MODE (mode)), 0))
!= NO_ERROR)
return (NO_CHANNEL);
{
Tchannel channel = (OS2_make_channel (handle, mode));
if ((CHANNEL_TYPE (channel)) == channel_type_file)
return (channel);
OS_channel_close_noerror (channel);
return (NO_CHANNEL);
}
}