src/compat/unistd.h

   1 #ifndef _BABELTRACE_COMPAT_UNISTD_H
   2 #define _BABELTRACE_COMPAT_UNISTD_H
   3
   4 /*
   5  * (C) Copyright 2016 - Michael Jeanson <mjeanson@efficios.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26
  27 #include <unistd.h>
  28
  29 #ifdef __MINGW32__
  30 #include <windows.h>
  31 #include <errno.h>
  32
  33 #define _SC_PAGESIZE 30
  34
  35 static inline
  36 long bt_sysconf(int name)
  37 {
  38         SYSTEM_INFO si;
  39
  40         switch(name) {
  41         case _SC_PAGESIZE:
  42                 GetNativeSystemInfo(&si);
  43                 return si.dwPageSize;
  44         default:
  45                 errno = EINVAL;
  46                 return -1;
  47         }
  48 }
  49
  50 #else
  51
  52 static inline
  53 long bt_sysconf(int name)
  54 {
  55         return sysconf(name);
  56 }
  57
  58 #endif
  59 #endif /* _BABELTRACE_COMPAT_UNISTD_H */