diff options
Diffstat (limited to 'sql/handler.cc')
| -rw-r--r-- | sql/handler.cc | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sql/handler.cc b/sql/handler.cc index f7a1a6ef0bf..2c274c7989e 100644 --- a/sql/handler.cc +++ b/sql/handler.cc @@ -109,6 +109,8 @@ const char *tx_isolation_names[] = TYPELIB tx_isolation_typelib= {array_elements(tx_isolation_names)-1,"", tx_isolation_names, NULL}; +static TYPELIB known_extensions= {0,"known_exts", NULL, NULL}; + enum db_type ha_resolve_by_name(const char *name, uint namelen) { THD *thd=current_thd; @@ -1633,3 +1635,57 @@ int handler::index_read_idx(byte * buf, uint index, const byte * key, return error; } +/* + Returns a list of all known extensions. + + SYNOPSIS + ha_known_exts() + + NOTES + No mutexes, worst case race is a minor surplus memory allocation + + RETURN VALUE + pointer pointer to TYPELIB structure +*/ +TYPELIB *ha_known_exts(void) +{ + if (!known_extensions.type_names) + { + show_table_type_st *types; + List<char> found_exts; + List_iterator_fast<char> it(found_exts); + const char *e, **ext; + + found_exts.push_back(".db"); + for (types= sys_table_types; types->type; types++) + { + if (*types->value == SHOW_OPTION_YES) + { + handler *file= get_new_handler(0,(enum db_type) types->db_type); + for (ext= file->bas_ext(); *ext; ext++) + { + while (e=it++) + if (e == *ext) + break; + + if (!e) + found_exts.push_back((char *)*ext); + + it.rewind(); + } + delete file; + } + } + ext= (const char **)my_once_alloc(sizeof(char *)* + (found_exts.elements+1), MYF(MY_WME)); + + DBUG_ASSERT(ext); + for (uint i=0; e=it++; i++) + ext[i]= e; + ext[found_exts.elements]= 0; + + known_extensions.count= found_exts.elements; + known_extensions.type_names= ext; + } + return &known_extensions; +} |