New function index_len().

This commit is contained in:
default 2022-12-10 11:19:26 +01:00
parent 6fd5d14428
commit 83a68d635d
2 changed files with 43 additions and 8 deletions

47
data.c
View File

@ -333,6 +333,19 @@ int index_first(const char *fn, char *line, int size)
}
int index_len(const char *fn)
/* returns the number of elements in an index */
{
struct stat st;
int len = 0;
if (stat(fn, &st) != -1)
len = st.st_size / 33;
return len;
}
d_char *index_list(const char *fn, int max)
/* returns an index as a list */
{
@ -588,31 +601,49 @@ int object_del_if_unref(const char *id)
}
d_char *_object_metadata(const char *id, const char *idxsfx)
/* returns the content of a metadata index */
d_char *_object_index_fn(const char *id, const char *idxsfx)
/* returns the filename of an object's index */
{
xs *fn = _object_fn(id);
fn = xs_replace_i(fn, ".json", idxsfx);
return index_list(fn, XS_ALL);
d_char *fn = _object_fn(id);
return xs_replace_i(fn, ".json", idxsfx);
}
int object_likes_len(const char *id)
/* returns the number of likes (without reading the index) */
{
xs *fn = _object_index_fn(id, "_l.idx");
return index_len(fn);
}
int object_announces_len(const char *id)
/* returns the number of announces (without reading the index) */
{
xs *fn = _object_index_fn(id, "_a.idx");
return index_len(fn);
}
d_char *object_children(const char *id)
/* returns the list of an object's children */
{
return _object_metadata(id, "_c.idx");
xs *fn = _object_index_fn(id, "_c.idx");
return index_list(fn, XS_ALL);
}
d_char *object_likes(const char *id)
{
return _object_metadata(id, "_l.idx");
xs *fn = _object_index_fn(id, "_l.idx");
return index_list(fn, XS_ALL);
}
d_char *object_announces(const char *id)
{
return _object_metadata(id, "_a.idx");
xs *fn = _object_index_fn(id, "_a.idx");
return index_list(fn, XS_ALL);
}

4
snac.h
View File

@ -57,6 +57,7 @@ double mtime_nl(const char *fn, int *n_link);
int index_add(const char *fn, const char *md5);
int index_del(const char *fn, const char *md5);
int index_first(const char *fn, char *buf, int size);
int index_len(const char *fn);
d_char *index_list(const char *fn, int max);
d_char *index_list_desc(const char *fn, int skip, int show);
@ -70,6 +71,9 @@ int object_del(const char *id);
int object_del_if_unref(const char *id);
int object_admire(const char *id, const char *actor, int like);
int object_likes_len(const char *id);
int object_announces_len(const char *id);
d_char *object_children(const char *id);
d_char *object_likes(const char *id);
d_char *object_announces(const char *id);