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2bfd3b3685
There are multiple instances where ints have been initialized with values of unsigned ints, and where negative values don't mean anything. When such ints are compared with unsigned ints, it causes sign comparison warnings. Also, some of these are used just as stand-ins for their initial values, never being modified, thus obscuring the specific conditions under which certain operations happen. Replace int with unsigned int for 2 variables, and replace the intermediate variables with their initial values for 2 other variables. Signed-off-by: Arnav Bhate <bhatearnav@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
97 lines
2.0 KiB
C
97 lines
2.0 KiB
C
/*
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* decorate.c - decorate a git object with some arbitrary
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* data.
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*/
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#include "git-compat-util.h"
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#include "object.h"
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#include "decorate.h"
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static unsigned int hash_obj(const struct object *obj, unsigned int n)
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{
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return oidhash(&obj->oid) % n;
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}
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static void *insert_decoration(struct decoration *n, const struct object *base, void *decoration)
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{
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struct decoration_entry *entries = n->entries;
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unsigned int j = hash_obj(base, n->size);
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while (entries[j].base) {
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if (entries[j].base == base) {
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void *old = entries[j].decoration;
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entries[j].decoration = decoration;
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return old;
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}
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if (++j >= n->size)
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j = 0;
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}
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entries[j].base = base;
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entries[j].decoration = decoration;
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n->nr++;
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return NULL;
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}
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static void grow_decoration(struct decoration *n)
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{
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unsigned int i;
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unsigned int old_size = n->size;
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struct decoration_entry *old_entries = n->entries;
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n->size = (old_size + 1000) * 3 / 2;
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CALLOC_ARRAY(n->entries, n->size);
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n->nr = 0;
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for (i = 0; i < old_size; i++) {
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const struct object *base = old_entries[i].base;
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void *decoration = old_entries[i].decoration;
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if (!decoration)
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continue;
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insert_decoration(n, base, decoration);
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}
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free(old_entries);
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}
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void *add_decoration(struct decoration *n, const struct object *obj,
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void *decoration)
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{
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if ((n->nr + 1) > n->size * 2 / 3)
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grow_decoration(n);
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return insert_decoration(n, obj, decoration);
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}
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void *lookup_decoration(struct decoration *n, const struct object *obj)
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{
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unsigned int j;
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/* nothing to lookup */
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if (!n->size)
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return NULL;
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j = hash_obj(obj, n->size);
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for (;;) {
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struct decoration_entry *ref = n->entries + j;
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if (ref->base == obj)
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return ref->decoration;
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if (!ref->base)
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return NULL;
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if (++j == n->size)
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j = 0;
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}
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}
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void clear_decoration(struct decoration *n, void (*free_cb)(void *))
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{
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if (free_cb) {
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unsigned int i;
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for (i = 0; i < n->size; i++) {
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void *d = n->entries[i].decoration;
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if (d)
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free_cb(d);
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}
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}
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FREE_AND_NULL(n->entries);
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n->size = n->nr = 0;
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}
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