diff options
Diffstat (limited to 'libbcachefs/util.h')
| -rw-r--r-- | libbcachefs/util.h | 117 |
1 files changed, 29 insertions, 88 deletions
diff --git a/libbcachefs/util.h b/libbcachefs/util.h index 433ba9c1..54392957 100644 --- a/libbcachefs/util.h +++ b/libbcachefs/util.h @@ -253,6 +253,32 @@ do { \ #define ANYSINT_MAX(t) \ ((((t) 1 << (sizeof(t) * 8 - 2)) - (t) 1) * (t) 2 + (t) 1) +struct printbuf { + char *pos; + char *end; +}; + +static inline size_t printbuf_remaining(struct printbuf *buf) +{ + return buf->end - buf->pos; +} + +#define _PBUF(_buf, _len) \ + ((struct printbuf) { \ + .pos = _buf, \ + .end = _buf + _len, \ + }) + +#define PBUF(_buf) _PBUF(_buf, sizeof(_buf)) + +#define pr_buf(_out, ...) \ +do { \ + (_out)->pos += scnprintf((_out)->pos, printbuf_remaining(_out), \ + __VA_ARGS__); \ +} while (0) + +void bch_scnmemcpy(struct printbuf *, const char *, size_t); + int bch2_strtoint_h(const char *, int *); int bch2_strtouint_h(const char *, unsigned int *); int bch2_strtoll_h(const char *, long long *); @@ -329,9 +355,10 @@ ssize_t bch2_hprint(char *buf, s64 v); bool bch2_is_zero(const void *, size_t); -ssize_t bch2_scnprint_string_list(char *, size_t, const char * const[], size_t); +void bch2_string_opt_to_text(struct printbuf *, + const char * const [], size_t); -ssize_t bch2_scnprint_flag_list(char *, size_t, const char * const[], u64); +void bch2_flags_to_text(struct printbuf *, const char * const[], u64); u64 bch2_read_flag_list(char *, const char * const[]); #define NR_QUANTILES 15 @@ -469,96 +496,12 @@ do { \ (var)->p_term_inverse, 1, INT_MAX); \ } while (0) -#define __DIV_SAFE(n, d, zero) \ -({ \ - typeof(n) _n = (n); \ - typeof(d) _d = (d); \ - _d ? _n / _d : zero; \ -}) - -#define DIV_SAFE(n, d) __DIV_SAFE(n, d, 0) - #define container_of_or_null(ptr, type, member) \ ({ \ typeof(ptr) _ptr = ptr; \ _ptr ? container_of(_ptr, type, member) : NULL; \ }) -#define RB_INSERT(root, new, member, cmp) \ -({ \ - __label__ dup; \ - struct rb_node **n = &(root)->rb_node, *parent = NULL; \ - typeof(new) this; \ - int res, ret = -1; \ - \ - while (*n) { \ - parent = *n; \ - this = container_of(*n, typeof(*(new)), member); \ - res = cmp(new, this); \ - if (!res) \ - goto dup; \ - n = res < 0 \ - ? &(*n)->rb_left \ - : &(*n)->rb_right; \ - } \ - \ - rb_link_node(&(new)->member, parent, n); \ - rb_insert_color(&(new)->member, root); \ - ret = 0; \ -dup: \ - ret; \ -}) - -#define RB_SEARCH(root, search, member, cmp) \ -({ \ - struct rb_node *n = (root)->rb_node; \ - typeof(&(search)) this, ret = NULL; \ - int res; \ - \ - while (n) { \ - this = container_of(n, typeof(search), member); \ - res = cmp(&(search), this); \ - if (!res) { \ - ret = this; \ - break; \ - } \ - n = res < 0 \ - ? n->rb_left \ - : n->rb_right; \ - } \ - ret; \ -}) - -#define RB_GREATER(root, search, member, cmp) \ -({ \ - struct rb_node *n = (root)->rb_node; \ - typeof(&(search)) this, ret = NULL; \ - int res; \ - \ - while (n) { \ - this = container_of(n, typeof(search), member); \ - res = cmp(&(search), this); \ - if (res < 0) { \ - ret = this; \ - n = n->rb_left; \ - } else \ - n = n->rb_right; \ - } \ - ret; \ -}) - -#define RB_FIRST(root, type, member) \ - container_of_or_null(rb_first(root), type, member) - -#define RB_LAST(root, type, member) \ - container_of_or_null(rb_last(root), type, member) - -#define RB_NEXT(ptr, member) \ - container_of_or_null(rb_next(&(ptr)->member), typeof(*ptr), member) - -#define RB_PREV(ptr, member) \ - container_of_or_null(rb_prev(&(ptr)->member), typeof(*ptr), member) - /* Does linear interpolation between powers of two */ static inline unsigned fract_exp_two(unsigned x, unsigned fract_bits) { @@ -717,8 +660,6 @@ static inline struct bio_vec next_contig_bvec(struct bio *bio, #define bio_for_each_contig_segment(bv, bio, iter) \ __bio_for_each_contig_segment(bv, bio, iter, (bio)->bi_iter) -size_t bch_scnmemcpy(char *, size_t, const char *, size_t); - void sort_cmp_size(void *base, size_t num, size_t size, int (*cmp_func)(const void *, const void *, size_t), void (*swap_func)(void *, void *, size_t)); |