Port: Add bt_common_get_page_size

[babeltrace.git] / include / babeltrace / compat / unistd-internal.h

diff --git a/include/babeltrace/compat/unistd-internal.h b/include/babeltrace/compat/unistd-internal.h
new file mode 100644 (file)
index 0000000..b06cdc8
--- /dev/null
+++ b/include/babeltrace/compat/unistd-internal.h
@@ -0,0 +1,61 @@
+#ifndef _BABELTRACE_COMPAT_UNISTD_H
+#define _BABELTRACE_COMPAT_UNISTD_H
+
+/*
+ * babeltrace/compat/unistd.h
+ *
+ * (C) Copyright 2016 - Michael Jeanson <mjeanson@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+
+#include <unistd.h>
+
+#ifdef __MINGW32__
+#include <windows.h>
+#include <errno.h>
+
+#define _SC_PAGESIZE 30
+
+static inline
+long bt_sysconf(int name)
+{
+       SYSTEM_INFO si;
+
+       switch(name) {
+       case _SC_PAGESIZE:
+               GetNativeSystemInfo(&si);
+               return si.dwPageSize;
+       default:
+               errno = EINVAL;
+               return -1;
+       }
+}
+
+#else
+
+static inline
+long bt_sysconf(int name)
+{
+       return sysconf(name);
+}
+
+#endif
+#endif /* _BABELTRACE_COMPAT_UNISTD_H */