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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 GOUGHCOMPILE_H
#define GOUGHCOMPILE_H
#include "mcclellancompile.h"
#include "nfa_kind.h"
#include "ue2common.h"
#include "util/bytecode_ptr.h"
#include "util/flat_containers.h"
#include "util/order_check.h"
#include <map>
#include <memory>
#include <set>
#include <vector>
namespace ue2 {
#define CREATE_NEW_SOM (~0U)
/* dest nfa state -> som info for dest state is min of provided loc idx som
* info */
typedef flat_map<u32, std::vector<u32>> som_tran_info;
struct som_report {
som_report(ReportID r, u32 s) : report(r), slot(s) {}
ReportID report;
u32 slot;
bool operator<(const som_report &b) const {
const som_report &a = *this;
ORDER_CHECK(report);
ORDER_CHECK(slot);
return false;
}
};
struct dstate_som {
std::set<som_report> reports;
std::set<som_report> reports_eod;
som_tran_info preds; /* live nfa states mapped back to pred states */
};
struct raw_som_dfa : public raw_dfa {
raw_som_dfa(nfa_kind k, bool unordered_som_triggers_in, u32 trigger,
u32 stream_som_loc_width_in)
: raw_dfa(k), stream_som_loc_width(stream_som_loc_width_in),
unordered_som_triggers(unordered_som_triggers_in),
trigger_nfa_state(trigger) {
assert(!unordered_som_triggers || is_triggered(kind));
}
std::vector<dstate_som> state_som;
u32 stream_som_loc_width;
bool unordered_som_triggers;
void stripExtraEodReports(void) override;
std::map<u32, u32> new_som_nfa_states; /* map nfa vertex id -> offset */
u32 trigger_nfa_state; /* for triggered cases, slot_id that contains a new
* som */
};
bytecode_ptr<NFA> goughCompile(raw_som_dfa &raw, u8 somPrecision,
const CompileContext &cc,
const ReportManager &rm);
} // namespace ue2
#endif // GOUGHCOMPILE_H
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