[Com0com-cvs] com0com/setup utils.cpp,1.1,1.2 utils.h,1.1,1.2

[Vyacheslav F. <vf...@us...>]

Update of /cvsroot/com0com/com0com/setup
In directory sc8-pr-cvs4.sourceforge.net:/tmp/cvs-serv30930

Modified Files:
	utils.cpp utils.h 
Log Message:
Added StrToInt() and class BusyMask





Index: utils.cpp
===================================================================
RCS file: /cvsroot/com0com/com0com/setup/utils.cpp,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** utils.cpp	28 Jul 2006 12:16:43 -0000	1.1
--- utils.cpp	2 Nov 2006 16:09:13 -0000	1.2
***************
*** 20,23 ****
--- 20,26 ----
   *
   * $Log$
+  * Revision 1.2  2006/11/02 16:09:13  vfrolov
+  * Added StrToInt() and class BusyMask
+  *
   * Revision 1.1  2006/07/28 12:16:43  vfrolov
   * Initial revision
***************
*** 57,58 ****
--- 60,158 ----
  }
  ///////////////////////////////////////////////////////////////
+ BOOL StrToInt(const char *pStr, int *pNum)
+ {
+   BOOL res = FALSE;
+   int num;
+   int sign = 1;
+ 
+   switch (*pStr) {
+     case '-':
+       sign = -1;
+     case '+':
+       pStr++;
+       break;
+   }
+ 
+   for (num = 0 ;; pStr++) {
+     switch (*pStr) {
+       case '0':
+       case '1':
+       case '2':
+       case '3':
+       case '4':
+       case '5':
+       case '6':
+       case '7':
+       case '8':
+       case '9':
+         num = num*10 + (*pStr - '0');
+         res = TRUE;
+         continue;
+       case 0:
+         break;
+       default:
+         res = FALSE;
+     }
+     break;
+   }
+ 
+   if (pNum)
+     *pNum = num*sign;
+ 
+   return res;
+ }
+ ///////////////////////////////////////////////////////////////
+ BusyMask::~BusyMask()
+ {
+   if (pBusyMask)
+     LocalFree(pBusyMask);
+ }
+ 
+ void BusyMask::AddNum(int num)
+ {
+   ULONG maskNum = num/(sizeof(*pBusyMask)*8);
+ 
+   if (maskNum >= busyMaskLen) {
+     SIZE_T newBusyMaskLen = maskNum + 1;
+     PBYTE pNewBusyMask;
+ 
+     if (!pBusyMask)
+       pNewBusyMask = (PBYTE)LocalAlloc(LPTR, newBusyMaskLen);
+     else
+       pNewBusyMask = (PBYTE)LocalReAlloc(pBusyMask, newBusyMaskLen, LMEM_ZEROINIT);
+ 
+     if (pNewBusyMask) {
+       pBusyMask = pNewBusyMask;
+       busyMaskLen = newBusyMaskLen;
+     } else {
+       return;
+     }
+   }
+ 
+   ULONG mask = 1 << (num%(sizeof(*pBusyMask)*8));
+ 
+   pBusyMask[maskNum] |= mask;
+ }
+ 
+ BOOL BusyMask::IsFreeNum(int num) const
+ {
+   ULONG maskNum = num/(sizeof(*pBusyMask)*8);
+ 
+   if (maskNum >= busyMaskLen)
+     return TRUE;
+ 
+   ULONG mask = 1 << (num%(sizeof(*pBusyMask)*8));
+ 
+   return (pBusyMask[maskNum] & mask) == 0;
+ }
+ 
+ int BusyMask::GetFirstFreeNum() const
+ {
+   int num;
+ 
+   for (num = 0 ; !IsFreeNum(num) ; num++)
+     ;
+ 
+   return num;
+ }
+ ///////////////////////////////////////////////////////////////

Index: utils.h
===================================================================
RCS file: /cvsroot/com0com/com0com/setup/utils.h,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** utils.h	28 Jul 2006 12:16:43 -0000	1.1
--- utils.h	2 Nov 2006 16:09:13 -0000	1.2
***************
*** 20,23 ****
--- 20,26 ----
   *
   * $Log$
+  * Revision 1.2  2006/11/02 16:09:13  vfrolov
+  * Added StrToInt() and class BusyMask
+  *
   * Revision 1.1  2006/07/28 12:16:43  vfrolov
   * Initial revision
***************
*** 31,34 ****
--- 34,51 ----
  int VSNPRINTF(char *pBuf, int size, const char *pFmt, va_list va);
  int SNPRINTF(char *pBuf, int size, const char *pFmt, ...);
+ BOOL StrToInt(const char *pStr, int *pNum);
+ 
+ class BusyMask {
+ public:
+   BusyMask() : pBusyMask(NULL), busyMaskLen(0) {}
+   ~BusyMask();
+ 
+   void AddNum(int num);
+   BOOL IsFreeNum(int num) const;
+   int GetFirstFreeNum() const;
+ private:
+   PBYTE pBusyMask;
+   SIZE_T busyMaskLen;
+ };
  
  #endif /* _C0C_UTILS_H_ */