sdk/lib/crt/process/_cwait.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS system libraries
   4  * FILE:        lib/sdk/crt/process/_cwait.c
   5  * PURPOSE:     Waits for a process to exit
   6  */
   7
   8 #include <precomp.h>
   9
  10 /* Taken from Wine msvcrt/process.c */
  11
  12 /*
  13  * @implemented
  14  */
  15 intptr_t CDECL _cwait(int *status, intptr_t pid, int action)
  16 {
  17   HANDLE hPid = (HANDLE)pid;
  18   int doserrno;
  19
  20   if (!WaitForSingleObject(hPid, INFINITE))
  21   {
  22     if (status)
  23     {
  24       DWORD stat;
  25       GetExitCodeProcess(hPid, &stat);
  26       *status = (int)stat;
  27     }
  28     return pid;
  29   }
  30   doserrno = GetLastError();
  31
  32   if (doserrno == ERROR_INVALID_HANDLE)
  33   {
  34     *_errno() =  ECHILD;
  35     *__doserrno() = doserrno;
  36   }
  37   else
  38     _dosmaperr(doserrno);
  39
  40   return status ? *status = -1 : -1;
  41 }