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authorDamjan Marion <damarion@cisco.com>2022-03-19 00:07:52 +0100
committerFlorin Coras <florin.coras@gmail.com>2022-03-30 18:27:13 +0000
commit299571aca34d36e637e43cfbba6275662d0d7795 (patch)
treea48be21950d082afb7dd93562f76f0ba554e8919 /src/vppinfra/string.h
parent9539647b895c456ca53892a9259e3127c6b92d35 (diff)
vppinfra: vector allocator rework
- support of in-place growth of vectors (if there is available space next to existing alloc) - drops the need for alloc_aligned_at_offset from memory allocator, which allows easier swap to different memory allocator and reduces malloc overhead - rework of pool and vec macros to inline functions to improve debuggability - fix alignment - in many cases macros were not using native alignment of the particular datatype. Explicitly setting alignment with XXX_aligned() versions of the macro is not needed anymore in > 99% of cases - fix ASAN usage - avoid use of vector of voids, this was root cause of several bugs found in vec_* and pool_* function where sizeof() was used on voids instead of real vector data type - introduce minimal alignment which is currently 8 bytes, vectors will be always aligned at least to that value (underlay allocator actually always provide 16-byte aligned allocs) Type: improvement Change-Id: I20f4b081bb13bbf7bc0ace85cc4e301787f12fdf Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vppinfra/string.h')
-rw-r--r--src/vppinfra/string.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/vppinfra/string.h b/src/vppinfra/string.h
index 0b187672816..0d8b1e6cb25 100644
--- a/src/vppinfra/string.h
+++ b/src/vppinfra/string.h
@@ -85,6 +85,25 @@ clib_memcpy_fast (void *restrict dst, const void *restrict src, size_t n)
#endif
}
+static_always_inline void *
+clib_memmove (void *dst, const void *src, size_t n)
+{
+ u8 *d = (u8 *) dst;
+ u8 *s = (u8 *) src;
+
+ if (s == d)
+ return d;
+
+ if (d > s)
+ for (uword i = n - 1; (i + 1) > 0; i--)
+ d[i] = s[i];
+ else
+ for (uword i = 0; i < n; i++)
+ d[i] = s[i];
+
+ return d;
+}
+
#include <vppinfra/memcpy.h>
/* c-11 string manipulation variants */