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cleanup idxset.[ch] a little: define proper types for the hash/compare funcs, do ptr->int/int->ptr conversions with clean macros

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1262 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-08-18 19:42:14 +00:00
parent c3df1ceb38
commit 8be0cf6007
2 changed files with 14 additions and 6 deletions
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10
src/pulsecore/idxset.c
View file

@ -42,8 +42,8 @@ typedef struct idxset_entry {
} idxset_entry;
struct pa_idxset {
unsigned (*hash_func) (const void *p);
int (*compare_func)(const void *a, const void *b);
pa_hash_func_t hash_func;
pa_compare_func_t compare_func;
unsigned hash_table_size, n_entries;
idxset_entry **hash_table, **array, *iterate_list_head, *iterate_list_tail;
@ -65,21 +65,21 @@ int pa_idxset_string_compare_func(const void *a, const void *b) {
}
unsigned pa_idxset_trivial_hash_func(const void *p) {
return (unsigned) (long) p;
return PA_PTR_TO_UINT(p);
}
int pa_idxset_trivial_compare_func(const void *a, const void *b) {
return a != b;
}
pa_idxset* pa_idxset_new(unsigned (*hash_func) (const void *p), int (*compare_func) (const void*a, const void*b)) {
pa_idxset* pa_idxset_new(pa_hash_func_t hash_func, pa_compare_func_t compare_func) {
pa_idxset *s;
s = pa_xnew(pa_idxset, 1);
s->hash_func = hash_func ? hash_func : pa_idxset_trivial_hash_func;
s->compare_func = compare_func ? compare_func : pa_idxset_trivial_compare_func;
s->hash_table_size = 127;
s->hash_table = pa_xmalloc0(sizeof(idxset_entry*)*s->hash_table_size);
s->hash_table = pa_xnew0(idxset_entry*, s->hash_table_size);
s->array = NULL;
s->array_size = 0;
s->index = 0;

10
src/pulsecore/idxset.h
View file

@ -41,10 +41,18 @@ int pa_idxset_trivial_compare_func(const void *a, const void *b);
unsigned pa_idxset_string_hash_func(const void *p);
int pa_idxset_string_compare_func(const void *a, const void *b);
#define PA_PTR_TO_UINT(p) ((unsigned int) (unsigned long) (p))
#define PA_UINT_TO_PTR(u) ((void*) (unsigned long) (u))
#define PA_PTR_TO_UINT32(p) ((uint32_t) PA_PTR_TO_UINT(p))
#define PA_UINT32_TO_PTR(u) PA_UINT_TO_PTR(u)
typedef unsigned (*pa_hash_func_t)(const void *p);
typedef int (*pa_compare_func_t)(const void *a, const void *b);
typedef struct pa_idxset pa_idxset;
/* Instantiate a new idxset with the specified hash and comparison functions */
pa_idxset* pa_idxset_new(unsigned (*hash_func) (const void *p), int (*compare_func) (const void*a, const void*b));
pa_idxset* pa_idxset_new(pa_hash_func_t hash_func, pa_compare_func_t compare_func);
/* Free the idxset. When the idxset is not empty the specified function is called for every entry contained */
void pa_idxset_free(pa_idxset *s, void (*free_func) (void *p, void *userdata), void *userdata);