src/compat/unistd.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright (C) 2016 Michael Jeanson <mjeanson@efficios.com>
   5  */
   6
   7 #ifndef _BABELTRACE_COMPAT_UNISTD_H
   8 #define _BABELTRACE_COMPAT_UNISTD_H
   9
  10 #include <unistd.h>
  11
  12 #ifdef __MINGW32__
  13 #include <windows.h>
  14 #include <errno.h>
  15
  16 #define _SC_PAGESIZE 30
  17
  18 static inline
  19 long bt_sysconf(int name)
  20 {
  21         SYSTEM_INFO si;
  22
  23         switch(name) {
  24         case _SC_PAGESIZE:
  25                 GetNativeSystemInfo(&si);
  26                 return si.dwPageSize;
  27         default:
  28                 errno = EINVAL;
  29                 return -1;
  30         }
  31 }
  32
  33 #else
  34
  35 static inline
  36 long bt_sysconf(int name)
  37 {
  38         return sysconf(name);
  39 }
  40
  41 #endif
  42 #endif /* _BABELTRACE_COMPAT_UNISTD_H */