//将Tag翻译为字符串，此处的Tag就是键值对中的键
LPWSTR ReadTagString(char *tagString)//pdf中#23代表'#'
{
int index = 0;
int len=(int)strlen(tagString);
List output=InitList();//每个data是byte值
while (index < len)
{
if (tagString[index] != '#')
{
AddNode(output,(void*)tagString[index] );
index++;
}
else
{
if (tagString[index + 1] == '#')//正常pdf几乎不可能遇到的情况，两个#相连
{
AddNode(output,(void*)'#');
AddNode(output,(void*)'#');
index += 2;
}
else
{
if (!TestValid(Substring(tagString,index + 1, 2)))//如果不符合#00~#FF的形式，原样输出，正常pdf几乎不可能遇到的情况
{
AddNode(output,(void*)'#');
AddNode(output,(void*)tagString[index+1]);
AddNode(output,(void*)tagString[index+2]);
index+=3;
}
else
{
AddNode(output,(void*)GetDecimal(Substring(tagString,index + 1, 2)));
index += 3;
}
}
}
}
return UTF8ToUnicode(CharListGetString(output));
}
CKernelOptions::CKernelOptions (void)
: m_nWidth (0),
m_nHeight (0),
m_nLogLevel (LogDebug),
m_nUSBPowerDelay (0),
m_CPUSpeed (CPUSpeedLow),
m_nSoCMaxTemp (60)
{
strcpy (m_LogDevice, "tty1");
strcpy (m_KeyMap, DEFAULT_KEYMAP);
s_pThis = this;
CBcmPropertyTags Tags;
if (!Tags.GetTag (PROPTAG_GET_COMMAND_LINE, &m_TagCommandLine, sizeof m_TagCommandLine))
{
return;
}
if (m_TagCommandLine.Tag.nValueLength >= sizeof m_TagCommandLine.String)
{
return;
}
m_TagCommandLine.String[m_TagCommandLine.Tag.nValueLength] = '\0';
m_pOptions = (char *) m_TagCommandLine.String;
char *pOption;
while ((pOption = GetToken ()) != 0)
{
char *pValue = GetOptionValue (pOption);
if (strcmp (pOption, "width") == 0)
{
unsigned nValue;
if ( (nValue = GetDecimal (pValue)) != INVALID_VALUE
&& 640 <= nValue && nValue <= 1980)
{
m_nWidth = nValue;
}
}
else if (strcmp (pOption, "height") == 0)
{
unsigned nValue;
if ( (nValue = GetDecimal (pValue)) != INVALID_VALUE
&& 480 <= nValue && nValue <= 1080)
{
m_nHeight = nValue;
}
}
else if (strcmp (pOption, "logdev") == 0)
{
strncpy (m_LogDevice, pValue, sizeof m_LogDevice-1);
m_LogDevice[sizeof m_LogDevice-1] = '\0';
}
else if (strcmp (pOption, "loglevel") == 0)
{
unsigned nValue;
if ( (nValue = GetDecimal (pValue)) != INVALID_VALUE
&& nValue <= LogDebug)
{
m_nLogLevel = nValue;
}
}
else if (strcmp (pOption, "keymap") == 0)
{
strncpy (m_KeyMap, pValue, sizeof m_KeyMap-1);
m_KeyMap[sizeof m_KeyMap-1] = '\0';
}
else if (strcmp (pOption, "usbpowerdelay") == 0)
{
unsigned nValue;
if ( (nValue = GetDecimal (pValue)) != INVALID_VALUE
&& 200 <= nValue && nValue <= 8000)
{
m_nUSBPowerDelay = nValue;
}
}
else if (strcmp (pOption, "fast") == 0)
{
if (strcmp (pValue, "true") == 0)
{
m_CPUSpeed = CPUSpeedMaximum;
}
}
else if (strcmp (pOption, "socmaxtemp") == 0)
{
unsigned nValue;
if ( (nValue = GetDecimal (pValue)) != INVALID_VALUE
&& 40 <= nValue && nValue <= 78)
{
m_nSoCMaxTemp = nValue;
}
}
}
}
// attempt to return a stored decimal
double GetDecimal(const std::string& key) const { return GetDecimal(key, 0.0); };
