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allow streams to marked as exhausted in more cases

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At stream boundaries, we can mark streams as exhausted if there are no
groups active and there are no other ways to report matches. This allows us
to stop maintaining the history buffer on subsequent stream writes.
Previously, streams were only marked as exhausted if a pure highlander case
reported all patterns or the outfix in a sole outfix case died.
This commit is contained in:
Alex Coyte
2017-01-31 09:29:41 +11:00
committed by Matthew Barr
parent fbaa0a1b25
commit bbd64f98ae
11 changed files with 171 additions and 30 deletions
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7
src/hwlm/hwlm.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2015-2016, Intel Corporation
* 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:
@@ -172,6 +172,8 @@ void do_accel_streaming(const union AccelAux *aux, const u8 *hbuf, size_t hlen,
hwlm_error_t hwlmExec(const struct HWLM *t, const u8 *buf, size_t len,
size_t start, HWLMCallback cb, void *ctxt,
hwlm_group_t groups) {
assert(t);
DEBUG_PRINTF("buf len=%zu, start=%zu, groups=%llx\n", len, start, groups);
if (!groups) {
DEBUG_PRINTF("groups all off\n");
@@ -201,6 +203,9 @@ hwlm_error_t hwlmExec(const struct HWLM *t, const u8 *buf, size_t len,
hwlm_error_t hwlmExecStreaming(const struct HWLM *t, struct hs_scratch *scratch,
size_t len, size_t start, HWLMCallback cb,
void *ctxt, hwlm_group_t groups) {
assert(t);
assert(scratch);
const u8 *hbuf = scratch->core_info.hbuf;
const size_t hlen = scratch->core_info.hlen;
const u8 *buf = scratch->core_info.buf;