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cache_bin: Don't allow direct internals access.

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This commit is contained in:
David Goldblatt
2020-02-26 17:10:12 -08:00
committed by David Goldblatt
parent da68f73296
commit b66c0973cc
2 changed files with 41 additions and 23 deletions
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38
include/jemalloc/internal/cache_bin.h
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@@ -144,16 +144,6 @@ cache_bin_empty_position_get(cache_bin_t *bin, szind_t ind,
return ret;
}
/* Returns the position of the bottom item on the stack; for convenience. */
static inline void **
cache_bin_bottom_item_get(cache_bin_t *bin, szind_t ind,
cache_bin_info_t *infos) {
void **bottom = cache_bin_empty_position_get(bin, ind, infos) - 1;
assert(cache_bin_ncached_get(bin, ind, infos) == 0 || *bottom != NULL);
return bottom;
}
/* Returns the numeric value of low water in [0, ncached]. */
static inline cache_bin_sz_t
cache_bin_low_water_get(cache_bin_t *bin, szind_t ind,
@@ -263,4 +253,32 @@ cache_bin_dalloc_easy(cache_bin_t *bin, void *ptr) {
return true;
}
typedef struct cache_bin_ptr_array_s cache_bin_ptr_array_t;
struct cache_bin_ptr_array_s {
cache_bin_sz_t nflush;
void **ptr;
};
#define CACHE_BIN_PTR_ARRAY_DECLARE(name, nflush_val) \
cache_bin_ptr_array_t name; \
name.nflush = (nflush_val)
static inline void
cache_bin_ptr_array_init(cache_bin_ptr_array_t *arr, cache_bin_t *bin,
cache_bin_sz_t nflush, szind_t ind, cache_bin_info_t *infos) {
arr->ptr = cache_bin_empty_position_get(bin, ind, infos) - 1;
assert(cache_bin_ncached_get(bin, ind, infos) == 0
|| *arr->ptr != NULL);
}
JEMALLOC_ALWAYS_INLINE void *
cache_bin_ptr_array_get(cache_bin_ptr_array_t *arr, cache_bin_sz_t n) {
return *(arr->ptr - n);
}
JEMALLOC_ALWAYS_INLINE void
cache_bin_ptr_array_set(cache_bin_ptr_array_t *arr, cache_bin_sz_t n, void *p) {
*(arr->ptr - n) = p;
}
#endif /* JEMALLOC_INTERNAL_CACHE_BIN_H */