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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@39 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2004-06-27 22:42:17 +00:00
parent 010378643e
commit a74cd2a1bd
17 changed files with 354 additions and 26 deletions
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28
src/idxset.c
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@ -15,29 +15,43 @@ struct idxset_entry {
};
struct idxset {
unsigned (*hash_func) (void *p);
int (*compare_func)(void *a, void *b);
unsigned (*hash_func) (const void *p);
int (*compare_func)(const void *a, const void *b);
unsigned hash_table_size, n_entries;
struct idxset_entry **hash_table, **array, *iterate_list_head, *iterate_list_tail;
uint32_t index, start_index, array_size;
};
static unsigned trivial_hash_func(void *p) {
unsigned idxset_string_hash_func(const void *p) {
unsigned hash = 0;
const char *c;
for (c = p; *c; c++)
hash = 31 * hash + *c;
return hash;
}
int idxset_string_compare_func(const void *a, const void *b) {
return strcmp(a, b);
}
unsigned idxset_trivial_hash_func(const void *p) {
return (unsigned) p;
}
static int trivial_compare_func(void *a, void *b) {
int idxset_trivial_compare_func(const void *a, const void *b) {
return a != b;
}
struct idxset* idxset_new(unsigned (*hash_func) (void *p), int (*compare_func) (void*a, void*b)) {
struct idxset* idxset_new(unsigned (*hash_func) (const void *p), int (*compare_func) (const void*a, const void*b)) {
struct idxset *s;
s = malloc(sizeof(struct idxset));
assert(s);
s->hash_func = hash_func ? hash_func : trivial_hash_func;
s->compare_func = compare_func ? compare_func : trivial_compare_func;
s->hash_func = hash_func ? hash_func : idxset_trivial_hash_func;
s->compare_func = compare_func ? compare_func : idxset_trivial_compare_func;
s->hash_table_size = 1023;
s->hash_table = malloc(sizeof(struct idxset_entry*)*s->hash_table_size);
assert(s->hash_table);