diff options
Diffstat (limited to 'cheesemap.h')
| -rw-r--r-- | cheesemap.h | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/cheesemap.h b/cheesemap.h index 338fd8a..3e307a3 100644 --- a/cheesemap.h +++ b/cheesemap.h @@ -65,14 +65,15 @@ typedef bool (*cm_compare_fn)(const cm_u8* key1, const cm_u8* key2, cm_u8* user); /* allocator methods */ -typedef cm_u8* (*cm_alloc_fn)(cm_usize size, cm_u8* user); +typedef cm_u8* (*cm_alloc_fn)(cm_usize size, cm_usize align, cm_u8* user); typedef void (*cm_dealloc_fn)(cm_u8* ptr, cm_u8* user); //////////////////////////////// // raw cheesemap implementation // // layout: -// [entries...][control bits...][mirror first CM_GROUP_SIZE bits] +// [padding][entry n-1...entry 1][entry 0][control bits...][mirror first +// CM_GROUP_SIZE bits] enum { // cheesemap config @@ -101,14 +102,22 @@ enum { extern const cm_u8 CM_CTRL_STATIC_EMPTY[CM_GROUP_SIZE]; struct cm_type { + // key size in bytes cm_usize key_size; + // value size in bytes cm_usize value_size; + // aligned value offset within an entry cm_usize value_offset; + // total entry size including padding cm_usize entry_size; + // required alignment for each entry + cm_usize entry_align; }; -#define cm_type_new(key_size, value_size, value_offset, entry_size) \ - ((struct cm_type){key_size, value_size, value_offset, entry_size}) +#define cm_type_new(key_size, value_size, value_offset, entry_size, \ + entry_align) \ + ((struct cm_type){key_size, value_size, value_offset, entry_size, \ + entry_align}) struct cheesemap_raw { // number of buckets as mask |