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 * Copyright (c) 2015-2016, Intel Corporation
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/** \file
 * \brief Inline functions for manipulating exhaustion vector.
 */

#ifndef EXHAUST_H
#define EXHAUST_H

#include "rose/rose_internal.h"
#include "util/internal_report.h"
#include "util/multibit.h"
#include "ue2common.h"

/** \brief Test whether the given key (\a ekey) is set in the exhaustion vector
 * \a evec. */
static really_inline
int isExhausted(const struct RoseEngine *t, const char *evec, u32 ekey) {
    DEBUG_PRINTF("checking exhaustion %p %u\n", evec, ekey);
    assert(ekey != INVALID_EKEY);
    assert(ekey < t->ekeyCount);
    return mmbit_isset((const u8 *)evec, t->ekeyCount, ekey);
}

/** \brief Returns 1 if all exhaustion keys in the bitvector are on. */
static really_inline
int isAllExhausted(const struct RoseEngine *t, const char *evec) {
    if (!t->canExhaust) {
        return 0; /* pattern set is inexhaustible */
    }

    return mmbit_all((const u8 *)evec, t->ekeyCount);
}

/** \brief Mark key \a ekey on in the exhaustion vector. */
static really_inline
void markAsMatched(const struct RoseEngine *t, char *evec, u32 ekey) {
    DEBUG_PRINTF("marking as exhausted key %u\n", ekey);
    assert(ekey != INVALID_EKEY);
    assert(ekey < t->ekeyCount);
    mmbit_set((u8 *)evec, t->ekeyCount, ekey);
}

/** \brief Clear all keys in the exhaustion vector. */
static really_inline
void clearEvec(const struct RoseEngine *t, char *evec) {
    DEBUG_PRINTF("clearing evec %p %u\n", evec, t->ekeyCount);
    mmbit_clear((u8 *)evec, t->ekeyCount);
}

#endif