jitcraft/CompactBuffer.h
changeset 87 f8ac2633b4e3
parent 86 32ad0523b309
child 88 fc3f34f928dd
     1.1 --- a/jitcraft/CompactBuffer.h	Tue Jul 24 23:53:34 2012 -0700
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,100 +0,0 @@
     1.4 -/* vim: set ts=4 sw=4 tw=99 et:
     1.5 - *
     1.6 - * Copyright (C) 2012 David Anderson
     1.7 - *
     1.8 - * This file is part of JITCraft.
     1.9 - *
    1.10 - * JITCraft is free software: you can redistribute it and/or modify it under
    1.11 - * the terms of the GNU General Public License as published by the Free
    1.12 - * Software Foundation, either version 3 of the License, or (at your option)
    1.13 - * any later version.
    1.14 - * 
    1.15 - * Foobar is distributed in the hope that it will be useful, but WITHOUT ANY
    1.16 - * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    1.17 - * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
    1.18 - *
    1.19 - * You should have received a copy of the GNU General Public License along with
    1.20 - * JITCraft. If not, see http://www.gnu.org/licenses/.
    1.21 - */
    1.22 -#ifndef _include_jc_compact_buffer_h_
    1.23 -#define _include_jc_compact_buffer_h_
    1.24 -
    1.25 -#include "AllocatorPolicies.h"
    1.26 -#include "Utility.h"
    1.27 -#include "Vector.h"
    1.28 -
    1.29 -namespace ke {
    1.30 -
    1.31 -class CompactBufferReader
    1.32 -{
    1.33 -    const uint8 *pos_;
    1.34 -    const uint8 *end_;
    1.35 -
    1.36 -  public:
    1.37 -    CompactBufferReader(const uint8 *start, const uint8 *end)
    1.38 -      : pos_(start),
    1.39 -        end_(end)
    1.40 -    {
    1.41 -    }
    1.42 -
    1.43 -    uint8 readUint8() {
    1.44 -        assert(pos_ < end_);
    1.45 -        return *pos_++;
    1.46 -    }
    1.47 -
    1.48 -    uint32 readUint32() {
    1.49 -        uint32 value = 0;
    1.50 -        uint32 shift = 0;
    1.51 -
    1.52 -        uint8 byte;
    1.53 -        do {
    1.54 -            byte = readUint8();
    1.55 -            value |= (byte >> 1) << shift;
    1.56 -            shift += 7;
    1.57 -        } while (byte & 1);
    1.58 -
    1.59 -        assert(shift < 32);
    1.60 -        return value;
    1.61 -    }
    1.62 -
    1.63 -    bool done() const {
    1.64 -        return pos_ == end_;
    1.65 -    }
    1.66 -};
    1.67 -
    1.68 -class CompactBufferWriter
    1.69 -{
    1.70 -    Vector<uint8, ZoneAllocatorPolicy> buffer_;
    1.71 -    bool enoughMemory_;
    1.72 -
    1.73 -  public:
    1.74 -    CompactBufferWriter()
    1.75 -      : enoughMemory_(true)
    1.76 -    {
    1.77 -    }
    1.78 -
    1.79 -    void writeUint8(unsigned value) {
    1.80 -        enoughMemory_ &= buffer_.append(value);
    1.81 -    }
    1.82 -    void writeUint32(unsigned value) {
    1.83 -        do {
    1.84 -            writeUint8(((value & 0x7F) << 1) | (value > 0x7F));
    1.85 -            value >>= 7;
    1.86 -        } while (value);
    1.87 -    }
    1.88 -
    1.89 -    uint8 *buffer() const {
    1.90 -        return buffer_.buffer();
    1.91 -    }
    1.92 -    size_t length() const {
    1.93 -        return buffer_.length();
    1.94 -    }
    1.95 -
    1.96 -    bool oom() const {
    1.97 -        return !enoughMemory_;
    1.98 -    }
    1.99 -};
   1.100 -
   1.101 -}
   1.102 -
   1.103 -#endif // _include_jc_compact_buffer_h_