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extmod/modbtree: open(): Add option kwargs. 

Namely: flags, cachesize, pagesize, minkeypage.
This commit is contained in:
Paul Sokolovsky 2016-08-06 00:10:22 +03:00
parent ed500e4987
commit d79342d33e
1 changed files with 14 additions and 3 deletions
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17
extmod/modbtree.c
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@ -344,19 +344,30 @@ STATIC FILEVTABLE btree_stream_fvtable = {
STATIC mp_obj_t mod_btree_open(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_server_side, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_flags, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_cachesize, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_pagesize, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_minkeypage, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
};
// Make sure we got a stream object
mp_get_stream_raise(pos_args[0], MP_STREAM_OP_READ | MP_STREAM_OP_WRITE | MP_STREAM_OP_IOCTL);
struct {
mp_arg_val_t server_side;
mp_arg_val_t flags;
mp_arg_val_t cachesize;
mp_arg_val_t pagesize;
mp_arg_val_t minkeypage;
} args;
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args,
MP_ARRAY_SIZE(allowed_args), allowed_args, (mp_arg_val_t*)&args);
BTREEINFO openinfo = {0};
openinfo.flags = args.flags.u_int;
openinfo.cachesize = args.cachesize.u_int;
openinfo.psize = args.pagesize.u_int;
openinfo.minkeypage = args.minkeypage.u_int;
DB *db = __bt_open(pos_args[0], &btree_stream_fvtable, /*openinfo*/NULL, /*dflags*/0);
DB *db = __bt_open(pos_args[0], &btree_stream_fvtable, &openinfo, /*dflags*/0);
if (db == NULL) {
nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(errno)));
}