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Allow no scratch for stream reset API calls

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Bring hs_reset_stream(), hs_reset_and_copy_stream()'s functionality into
line with hs_close_stream() by accepting a NULL scratch if and only if
the match callback is also NULL, indicating that no matches should be
delivered.
This commit is contained in:
Justin Viiret
2015-10-23 15:32:55 +11:00
committed by Matthew Barr
parent b59491d0db
commit 9ff1303cd8
4 changed files with 60 additions and 18 deletions
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6
src/hs_runtime.h
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@@ -250,7 +250,8 @@ hs_error_t hs_close_stream(hs_stream_t *id, hs_scratch_t *scratch,
* for future use and is unused at present.
*
* @param scratch
* A per-thread scratch space allocated by @ref hs_alloc_scratch().
* A per-thread scratch space allocated by @ref hs_alloc_scratch(). This is
* allowed to be NULL only if the @a onEvent callback is also NULL.
*
* @param onEvent
* Pointer to a match event callback function. If a NULL pointer is given,
@@ -299,7 +300,8 @@ hs_error_t hs_copy_stream(hs_stream_t **to_id, const hs_stream_t *from_id);
* The stream (as created by @ref hs_open_stream()) to be copied.
*
* @param scratch
* A per-thread scratch space allocated by @ref hs_alloc_scratch().
* A per-thread scratch space allocated by @ref hs_alloc_scratch(). This is
* allowed to be NULL only if the @a onEvent callback is also NULL.
*
* @param onEvent
* Pointer to a match event callback function. If a NULL pointer is given,