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fdr: move long literal handling into Rose

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Move the hash table used for long literal support in streaming mode from
FDR to Rose, and introduce new instructions CHECK_LONG_LIT and
CHECK_LONG_LIT_NOCASE for doing literal confirm for long literals.

This simplifies FDR confirm, and guarantees that HWLM matchers will only
be used for literals < 256 bytes long.
This commit is contained in:
Justin Viiret
2016-09-07 15:59:23 +10:00
committed by Matthew Barr
parent 6ed30194ce
commit 68bf473e2e
40 changed files with 1759 additions and 1310 deletions
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9
src/fdr/fdr_confirm_runtime.h
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@@ -74,10 +74,8 @@ void confWithBit(const struct FDRConfirm *fdrc, const struct FDR_Runtime_Args *a
if (loc < buf) {
u32 full_overhang = buf - loc;
const u8 *history = caseless ? a->buf_history_nocase
: a->buf_history;
size_t len_history = caseless ? a->len_history_nocase
: a->len_history;
const u8 *history = a->buf_history;
size_t len_history = a->len_history;
// can't do a vectored confirm either if we don't have
// the bytes
@@ -123,8 +121,7 @@ void confWithBit(const struct FDRConfirm *fdrc, const struct FDR_Runtime_Args *a
const u8 *loc2 = buf + i - li->extended_size + 1 - pullBackAmount;
if (loc2 < buf) {
u32 full_overhang = buf - loc2;
size_t len_history = caseless ? a->len_history_nocase
: a->len_history;
size_t len_history = a->len_history;
if (full_overhang > len_history) {
goto out;
}