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extmod/modbtree: Switch to accepting stream object instead of filename.

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Requires "embedded" BerkeleyDB BTree implementation.
This commit is contained in:
Paul Sokolovsky 2016-07-31 00:40:35 +03:00
parent 0dfe849413
commit 99061d1dcb
1 changed files with 11 additions and 5 deletions
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16
extmod/modbtree.c
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@ -31,6 +31,7 @@
#include "py/nlr.h"
#include "py/runtime.h"
#include "py/stream.h"
#if MICROPY_PY_BTREE
@ -314,15 +315,20 @@ STATIC const mp_obj_type_t btree_type = {
.locals_dict = (void*)&btree_locals_dict,
};
STATIC FILEVTABLE btree_stream_fvtable = {
mp_stream_posix_read,
mp_stream_posix_write,
mp_stream_posix_lseek,
mp_stream_posix_fsync
};
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} },
};
const char *fname = NULL;
if (pos_args[0] != mp_const_none) {
fname = mp_obj_str_get_str(pos_args[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;
@ -330,7 +336,7 @@ STATIC mp_obj_t mod_btree_open(size_t n_args, const mp_obj_t *pos_args, mp_map_t
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args,
MP_ARRAY_SIZE(allowed_args), allowed_args, (mp_arg_val_t*)&args);
DB *db = __bt_open(fname, /*flags*/O_CREAT | O_RDWR, /*mode*/0770, /*openinfo*/NULL, /*dflags*/0);
DB *db = __bt_open(pos_args[0], &btree_stream_fvtable, /*openinfo*/NULL, /*dflags*/0);
if (db == NULL) {
nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(errno)));
}