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56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_KEYVADB_H_INCLUDED
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#define BEAST_KEYVADB_H_INCLUDED
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/** Specialized Key/value database
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Once written, a value can never be modified.
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*/
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class KeyvaDB : LeakChecked <KeyvaDB>
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{
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public:
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class GetCallback
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{
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public:
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virtual void* getStorageForValue (int valueBytes) = 0;
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};
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static KeyvaDB* New (int keyBytes,
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int keyBlockDepth,
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File keyPath,
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File valPath);
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virtual ~KeyvaDB () { }
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// VFALCO TODO Make the return value a Result so we can
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// detect corruption and errors!
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//
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virtual bool get (void const* key, GetCallback* callback) = 0;
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// VFALCO TODO Use Result for return value
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//
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virtual void put (void const* key, void const* value, int valueBytes) = 0;
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virtual void flush () = 0;
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};
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#endif
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