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author | Ran Benita <ran234@gmail.com> | 2014-09-12 00:31:40 +0300 |
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committer | Ran Benita <ran234@gmail.com> | 2014-10-03 00:15:39 +0300 |
commit | e8b112325c4acd54c4ea49933322a06e4c79c8ca (patch) | |
tree | 4afeaeeaba900d6d42ab2239bd94cce2c4757df0 /src | |
parent | b3f2396588a1e5f3f7570b0344eb7c43702d439b (diff) | |
download | xorg-lib-libxkbcommon-e8b112325c4acd54c4ea49933322a06e4c79c8ca.tar.gz |
darray: add darray_shrink()
If we have a big array which can be finalized, on average we can give
back 1/4 of its size, which the allocator might be able to use.
Signed-off-by: Ran Benita <ran234@gmail.com>
Diffstat (limited to 'src')
-rw-r--r-- | src/darray.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/darray.h b/src/darray.h index d85edea..be0319f 100644 --- a/src/darray.h +++ b/src/darray.h @@ -166,6 +166,12 @@ typedef darray (unsigned long) darray_ulong; sizeof(*(arr).item))); \ } while (0) +#define darray_shrink(arr) do { \ + if ((arr).size > 0) \ + (arr).item = realloc((arr).item, \ + ((arr).alloc = (arr).size) * sizeof(*(arr).item)); \ +} while (0) + static inline unsigned darray_next_alloc(unsigned alloc, unsigned need, unsigned itemSize) { |