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Diffstat (limited to '')
-rw-r--r-- | storage/mroonga/vendor/groonga/lib/dat/file.hpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/storage/mroonga/vendor/groonga/lib/dat/file.hpp b/storage/mroonga/vendor/groonga/lib/dat/file.hpp new file mode 100644 index 00000000..722b93dd --- /dev/null +++ b/storage/mroonga/vendor/groonga/lib/dat/file.hpp @@ -0,0 +1,60 @@ +/* -*- c-basic-offset: 2 -*- */ +/* + Copyright(C) 2011-2016 Brazil + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License version 2.1 as published by the Free Software Foundation. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA +*/ + +#pragma once + +#include "dat.hpp" + +namespace grn { +namespace dat { + +// This implementation class hides environment dependent codes required for +// memory-mapped I/O. +class FileImpl; + +class GRN_DAT_API File { + public: + File(); + ~File(); + + // This function creates a file and maps the entire file to a certain range + // of the address space. Note that a file is truncated if exists. + void create(const char *path, UInt64 size); + + // This function opens a file and maps the entire file to a certain range of + // the address space. + void open(const char *path); + void close(); + + void *ptr() const; + UInt64 size() const; + + void swap(File *rhs); + + void flush(); + + private: + FileImpl *impl_; + + // Disallows copy and assignment. + File(const File &); + File &operator=(const File &); +}; + +} // namespace dat +} // namespace grn |