1 files changed, 73 insertions, 0 deletions
diff --git a/plugins/Dbx_kv/src/hamsterdb/src/1os/os.h b/plugins/Dbx_kv/src/hamsterdb/src/1os/os.h
new file mode 100644
index 0000000000..dd2f52a4dc
--- /dev/null
+++ b/plugins/Dbx_kv/src/hamsterdb/src/1os/os.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2005-2015 Christoph Rupp (chris@crupp.de).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Abstraction layer for operating system functions
+ *
+ * @exception_safe: basic // for socket
+ * @exception_safe: strong // for file
+ * @thread_safe: unknown
+ */
+
+#ifndef HAM_OS_H
+#define HAM_OS_H
+
+#include "0root/root.h"
+
+#include <stdio.h>
+#include <limits.h>
+
+#include "ham/types.h"
+
+// Always verify that a file of level N does not include headers > N!
+
+#ifndef HAM_ROOT_H
+#  error "root.h was not included"
+#endif
+
+namespace hamsterdb {
+
+/*
+ * typedefs for posix
+ */
+#ifdef HAM_OS_POSIX
+typedef int                ham_fd_t;
+typedef int	               ham_socket_t;
+#  define HAM_INVALID_FD  (-1)
+#endif
+
+/*
+ * typedefs for Windows 32- and 64-bit
+ */
+#ifdef HAM_OS_WIN32
+#  ifdef CYGWIN
+typedef int                ham_fd_t;
+typedef int	               ham_socket_t;
+#  else
+typedef HANDLE             ham_fd_t;
+typedef SOCKET             ham_socket_t;
+#  endif
+#  define HAM_INVALID_FD   (0)
+#endif
+
+// Returns the number of 32bit integers that the CPU can process in
+// parallel (the SIMD lane width) 
+extern int
+os_get_simd_lane_width();
+
+} // namespace hamsterdb
+
+#endif /* HAM_OS_H */