From 299571aca34d36e637e43cfbba6275662d0d7795 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Sat, 19 Mar 2022 00:07:52 +0100 Subject: 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 --- src/vppinfra/string.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'src/vppinfra/string.h') 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 /* c-11 string manipulation variants */ -- cgit 1.2.3-korg