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/*
* 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:
*
* * 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.
*/
#include "init.h"
#include "match.h"
#include "runtime.h"
#include "scratch.h"
#include "rose.h"
#include "rose_common.h"
#include "rose_internal.h"
#include "ue2common.h"
#include "nfa/mcclellan.h"
#include "nfa/nfa_api_util.h"
#include "nfa/nfa_internal.h"
#include "util/multibit.h"
#include <string.h>
static really_inline
void init_rstate(const struct RoseEngine *t, char *state) {
// Set runtime state: we take our initial groups from the RoseEngine.
DEBUG_PRINTF("setting initial groups to 0x%016llx\n", t->initialGroups);
storeGroups(t, state, t->initialGroups);
}
static really_inline
void init_outfixes(const struct RoseEngine *t, char *state) {
/* The active leaf array has been init'ed by the scatter with outfix
* bits set on */
// Init the NFA state for each outfix.
for (u32 qi = t->outfixBeginQueue; qi < t->outfixEndQueue; qi++) {
const struct NfaInfo *info = getNfaInfoByQueue(t, qi);
const struct NFA *nfa = getNfaByInfo(t, info);
nfaInitCompressedState(nfa, 0, state + info->stateOffset,
0 /* assume NUL at start */);
}
if (t->initMpvNfa != MO_INVALID_IDX) {
const struct NfaInfo *info = getNfaInfoByQueue(t, t->initMpvNfa);
const struct NFA *nfa = getNfaByInfo(t, info);
nfaInitCompressedState(nfa, 0, state + info->stateOffset,
0 /* assume NUL at start */);
mmbit_set(getActiveLeafArray(t, state), t->activeArrayCount,
t->initMpvNfa);
}
}
void roseInitState(const struct RoseEngine *t, char *state) {
assert(t);
assert(state);
DEBUG_PRINTF("init for Rose %p with %u state indices)\n", t,
t->rolesWithStateCount);
// Rose is guaranteed 8-aligned state
assert(ISALIGNED_N(state, 8));
init_rstate(t, state);
init_state(t, state);
init_outfixes(t, state);
}
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