1 files changed, 33 insertions, 0 deletions
diff --git a/src/common/page.cc b/src/common/page.cc
new file mode 100644
index 000000000..e3dc34a43
--- /dev/null
+++ b/src/common/page.cc
@@ -0,0 +1,33 @@
+#include <unistd.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+namespace ceph {
+
+  // page size crap, see page.h
+  int _get_bits_of(int v) {
+    int n = 0;
+    while (v) {
+      n++;
+      v = v >> 1;
+    }
+    return n;
+  }
+
+  #ifdef _WIN32
+  unsigned _get_page_size() {
+    SYSTEM_INFO system_info;
+    GetSystemInfo(&system_info);
+    return system_info.dwPageSize;
+  }
+
+  unsigned _page_size = _get_page_size();
+  #else
+  unsigned _page_size = sysconf(_SC_PAGESIZE);
+  #endif
+  unsigned long _page_mask = ~(unsigned long)(_page_size - 1);
+  unsigned _page_shift = _get_bits_of(_page_size - 1);
+
+}