win32_test_app/src/TErrno.c

   1 #include <TErrno.h>
   2
   3 /* Global variable */
   4 static errno_t __errno = E_SUCCESS;
   5 static CRITICAL_SECTION errno_cs;
   6 static bool errno_cs_initialized = false;
   7 static is_last_errno = false;
   8
   9 void initializeErrno(void)
  10 {
  11         if(!errno_cs_initialized)
  12         {
  13                 memset(&errno_cs,0,sizeof(CRITICAL_SECTION)) ;
  14                 InitializeCriticalSection(&errno_cs);
  15                 errno_cs_initialized = true;
  16         }
  17 }
  18
  19 void terminateErrno(void)
  20 {
  21         if(errno_cs_initialized)
  22         {
  23                 DeleteCriticalSection(&errno_cs);
  24         }
  25 }
  26
  27
  28 void setErrno(errno_t e)
  29 {
  30         EnterCriticalSection(&errno_cs);
  31
  32     if((E_SUCCESS != e) && !is_last_errno)
  33     {
  34             __errno = e;
  35         is_last_errno = true;
  36     }
  37
  38    LeaveCriticalSection(&errno_cs);
  39 }
  40
  41 errno_t getErrno(void)
  42 {
  43         errno_t e;
  44         EnterCriticalSection(&errno_cs);
  45         e = __errno;
  46         LeaveCriticalSection(&errno_cs);
  47
  48         return e;
  49 }