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simple offset accel for mcclellan start state

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This commit is contained in:
Alex Coyte
2016-02-16 13:37:39 +11:00
committed by Matthew Barr
parent d125601152
commit f53c093baa
11 changed files with 698 additions and 316 deletions
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24
src/nfa/mcclellancompile.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Intel Corporation
* Copyright (c) 2015-2016, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -59,6 +59,7 @@ struct escape_info {
CharReach outs2_single;
flat_set<std::pair<u8, u8>> outs2;
bool outs2_broken = false;
u32 offset = 0;
};
class dfa_build_strat {
@@ -70,10 +71,10 @@ public:
std::vector<u32> &reports_eod /* out */,
u8 *isSingleReport /* out */,
ReportID *arbReport /* out */) const = 0;
virtual void find_escape_strings(dstate_id_t this_idx,
escape_info *out) const = 0;
virtual escape_info find_escape_strings(dstate_id_t this_idx) const = 0;
virtual size_t accelSize(void) const = 0;
virtual void buildAccel(dstate_id_t this_idx, void *accel_out) = 0;
virtual void buildAccel(dstate_id_t this_idx, const escape_info &info,
void *accel_out) = 0;
};
class mcclellan_build_strat : public dfa_build_strat {
@@ -81,14 +82,15 @@ public:
explicit mcclellan_build_strat(raw_dfa &r) : rdfa(r) {}
raw_dfa &get_raw() const override { return rdfa; }
std::unique_ptr<raw_report_info> gatherReports(
std::vector<u32> &reports /* out */,
std::vector<u32> &reports_eod /* out */,
u8 *isSingleReport /* out */,
ReportID *arbReport /* out */) const override;
void find_escape_strings(dstate_id_t this_idx,
escape_info *out) const override;
std::vector<u32> &reports /* out */,
std::vector<u32> &reports_eod /* out */,
u8 *isSingleReport /* out */,
ReportID *arbReport /* out */) const override;
escape_info find_escape_strings(dstate_id_t this_idx) const override;
size_t accelSize(void) const override;
void buildAccel(dstate_id_t this_idx, void *accel_out) override;
void buildAccel(dstate_id_t this_idx,const escape_info &info,
void *accel_out) override;
virtual u32 max_allowed_offset_accel() const;
private:
raw_dfa &rdfa;