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/*
* Copyright (c) 2015-2017, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FDR_COMPILE_INTERNAL_H
#define FDR_COMPILE_INTERNAL_H
#include "ue2common.h"
#include "hwlm/hwlm_literal.h"
#include "util/bytecode_ptr.h"
#include <map>
#include <utility>
#include <vector>
struct FDRConfirm;
struct LitInfo;
namespace ue2 {
// a pile of decorative typedefs
// good for documentation purposes more than anything else
typedef u32 LiteralIndex;
typedef u32 SuffixPositionInString; // zero is last byte, counting back
// into the string
typedef u32 BucketIndex;
typedef u32 SchemeBitIndex;
typedef u32 PositionInBucket; // zero is 'we are matching right now!",
// counting towards future matches
class EngineDescription;
class FDREngineDescription;
struct hwlmStreamingControl;
struct Grey;
bytecode_ptr<u8> setupFullConfs(
const std::vector<hwlmLiteral> &lits,
const EngineDescription &eng,
const std::map<BucketIndex, std::vector<LiteralIndex>> &bucketToLits,
bool make_small);
// all suffixes include an implicit max_bucket_width suffix to ensure that
// we always read a full-scale flood "behind" us in terms of what's in our
// state; if we don't have a flood that's long enough we won't be in the
// right state yet to allow blindly advancing
bytecode_ptr<u8> setupFDRFloodControl(const std::vector<hwlmLiteral> &lits,
const EngineDescription &eng,
const Grey &grey);
bytecode_ptr<u8>
fdrBuildTableStreaming(const std::vector<hwlmLiteral> &lits,
hwlmStreamingControl &stream_control);
static constexpr u32 HINT_INVALID = 0xffffffff;
// fdr_compile_util.cpp utilities
size_t maxLen(const std::vector<hwlmLiteral> &lits);
size_t minLenCount(const std::vector<hwlmLiteral> &lits, size_t *count);
u32 absdiff(u32 i, u32 j);
} // namespace ue2
#endif
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