1 /* 2 * Copyright (c) 2015-2018, Intel Corporation 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * * Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * * Neither the name of Intel Corporation nor the names of its contributors 13 * may be used to endorse or promote products derived from this software 14 * without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef ACCEL_DFA_BUILD_STRAT_H 30 #define ACCEL_DFA_BUILD_STRAT_H 31 32 #include "rdfa.h" 33 #include "dfa_build_strat.h" 34 #include "ue2common.h" 35 #include "util/accel_scheme.h" 36 37 #include <map> 38 39 namespace ue2 { 40 41 class ReportManager; 42 struct Grey; 43 enum DfaType { 44 McClellan, 45 Sheng, 46 Gough 47 }; 48 49 class accel_dfa_build_strat : public dfa_build_strat { 50 public: accel_dfa_build_strat(const ReportManager & rm_in,bool only_accel_init_in)51 accel_dfa_build_strat(const ReportManager &rm_in, bool only_accel_init_in) 52 : dfa_build_strat(rm_in), only_accel_init(only_accel_init_in) {} 53 virtual AccelScheme find_escape_strings(dstate_id_t this_idx) const; 54 virtual size_t accelSize(void) const = 0; 55 virtual u32 max_allowed_offset_accel() const = 0; 56 virtual u32 max_stop_char() const = 0; 57 virtual u32 max_floating_stop_char() const = 0; 58 virtual void buildAccel(dstate_id_t this_idx, const AccelScheme &info, 59 void *accel_out); 60 virtual std::map<dstate_id_t, AccelScheme> getAccelInfo(const Grey &grey); 61 virtual DfaType getType() const = 0; 62 63 private: 64 bool only_accel_init; 65 }; 66 67 } // namespace ue2 68 69 #endif // ACCEL_DFA_BUILD_STRAT_H 70