diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | include/ruby/st.h | 1 | ||||
| -rw-r--r-- | st.c | 11 |
3 files changed, 17 insertions, 0 deletions
@@ -1,3 +1,8 @@ +Wed Jun 17 06:48:28 2009 Koichi Sasada <ko1@atdot.net> + + * st.c, include/ruby/st.h (st_memsize): added. This function returns + the memory usage of st_talbe. + Wed Jun 17 06:19:06 2009 Koichi Sasada <ko1@atdot.net> * include/ruby/ruby.h: New structure RTypedData, added. diff --git a/include/ruby/st.h b/include/ruby/st.h index 0c80d3a225..aebdaf569d 100644 --- a/include/ruby/st.h +++ b/include/ruby/st.h @@ -107,6 +107,7 @@ int st_numcmp(st_data_t, st_data_t); int st_numhash(st_data_t); int st_strcasecmp(const char *s1, const char *s2); int st_strncasecmp(const char *s1, const char *s2, size_t n); +size_t st_memsize(st_table *); #if defined(__cplusplus) #if 0 @@ -256,6 +256,17 @@ st_free_table(st_table *table) free(table); } +size_t +st_memsize(st_table *table) +{ + if (table->entries_packed) { + return table->num_bins * sizeof (void *) + sizeof(st_table); + } + else { + return table->num_entries * sizeof(struct st_table_entry) + table->num_bins * sizeof (void *) + sizeof(st_table); + } +} + #define PTR_NOT_EQUAL(table, ptr, hash_val, key) \ ((ptr) != 0 && (ptr->hash != (hash_val) || !EQUAL((table), (key), (ptr)->key))) |