diff options
| -rw-r--r-- | examples/natmod/btree/Makefile | 37 | ||||
| -rw-r--r-- | examples/natmod/btree/btree_c.c | 148 | ||||
| -rw-r--r-- | examples/natmod/btree/btree_py.py | 3 |
3 files changed, 188 insertions, 0 deletions
diff --git a/examples/natmod/btree/Makefile b/examples/natmod/btree/Makefile new file mode 100644 index 0000000000..d795102b4a --- /dev/null +++ b/examples/natmod/btree/Makefile @@ -0,0 +1,37 @@ +# Location of top-level MicroPython directory +MPY_DIR = ../../.. + +# Name of module (different to built-in btree so it can coexist) +MOD = btree_$(ARCH) + +# Source files (.c or .py) +SRC = btree_c.c btree_py.py + +# Architecture to build for (x86, x64, armv7m, xtensa, xtensawin) +ARCH = x64 + +BTREE_DIR = $(MPY_DIR)/lib/berkeley-db-1.xx +BTREE_DEFS = -D__DBINTERFACE_PRIVATE=1 -Dmpool_error="(void)" -Dabort=abort_ "-Dvirt_fd_t=void*" $(BTREE_DEFS_EXTRA) +CFLAGS += -I$(BTREE_DIR)/PORT/include +CFLAGS += -Wno-old-style-definition -Wno-sign-compare -Wno-unused-parameter $(BTREE_DEFS) + +SRC += $(addprefix $(realpath $(BTREE_DIR))/,\ + btree/bt_close.c \ + btree/bt_conv.c \ + btree/bt_delete.c \ + btree/bt_get.c \ + btree/bt_open.c \ + btree/bt_overflow.c \ + btree/bt_page.c \ + btree/bt_put.c \ + btree/bt_search.c \ + btree/bt_seq.c \ + btree/bt_split.c \ + btree/bt_utils.c \ + mpool/mpool.c \ + ) + +include $(MPY_DIR)/py/dynruntime.mk + +# btree needs gnu99 defined +CFLAGS += -std=gnu99 diff --git a/examples/natmod/btree/btree_c.c b/examples/natmod/btree/btree_c.c new file mode 100644 index 0000000000..c8c5cef471 --- /dev/null +++ b/examples/natmod/btree/btree_c.c @@ -0,0 +1,148 @@ +#define MICROPY_ENABLE_DYNRUNTIME (1) +#define MICROPY_PY_BTREE (1) + +#include "py/dynruntime.h" + +#include <unistd.h> + +#if !defined(__linux__) +void *memcpy(void *dst, const void *src, size_t n) { + return mp_fun_table.memmove_(dst, src, n); +} +void *memset(void *s, int c, size_t n) { + return mp_fun_table.memset_(s, c, n); +} +#endif + +void *memmove(void *dest, const void *src, size_t n) { + return mp_fun_table.memmove_(dest, src, n); +} + +void *malloc(size_t n) { + void *ptr = m_malloc(n); + return ptr; +} +void *realloc(void *ptr, size_t n) { + mp_printf(&mp_plat_print, "UNDEF %d\n", __LINE__); + return NULL; +} +void *calloc(size_t n, size_t m) { + void *ptr = m_malloc(n * m); + // memory already cleared by conservative GC + return ptr; +} + +void free(void *ptr) { + m_free(ptr); +} + +void abort_(void) { + nlr_raise(mp_obj_new_exception(mp_load_global(MP_QSTR_RuntimeError))); +} + +int native_errno; +#if defined(__linux__) +int *__errno_location (void) +#else +int *__errno (void) +#endif +{ + return &native_errno; +} + +ssize_t mp_stream_posix_write(void *stream, const void *buf, size_t len) { + mp_obj_base_t* o = stream; + const mp_stream_p_t *stream_p = o->type->protocol; + mp_uint_t out_sz = stream_p->write(MP_OBJ_FROM_PTR(stream), buf, len, &native_errno); + if (out_sz == MP_STREAM_ERROR) { + return -1; + } else { + return out_sz; + } +} + +ssize_t mp_stream_posix_read(void *stream, void *buf, size_t len) { + mp_obj_base_t* o = stream; + const mp_stream_p_t *stream_p = o->type->protocol; + mp_uint_t out_sz = stream_p->read(MP_OBJ_FROM_PTR(stream), buf, len, &native_errno); + if (out_sz == MP_STREAM_ERROR) { + return -1; + } else { + return out_sz; + } +} + +off_t mp_stream_posix_lseek(void *stream, off_t offset, int whence) { + const mp_obj_base_t* o = stream; + const mp_stream_p_t *stream_p = o->type->protocol; + struct mp_stream_seek_t seek_s; + seek_s.offset = offset; + seek_s.whence = whence; + mp_uint_t res = stream_p->ioctl(MP_OBJ_FROM_PTR(stream), MP_STREAM_SEEK, (mp_uint_t)(uintptr_t)&seek_s, &native_errno); + if (res == MP_STREAM_ERROR) { + return -1; + } + return seek_s.offset; +} + +int mp_stream_posix_fsync(void *stream) { + mp_obj_base_t* o = stream; + const mp_stream_p_t *stream_p = o->type->protocol; + mp_uint_t res = stream_p->ioctl(MP_OBJ_FROM_PTR(stream), MP_STREAM_FLUSH, 0, &native_errno); + if (res == MP_STREAM_ERROR) { + return -1; + } + return res; +} + +mp_obj_type_t btree_type; + +#include "extmod/modbtree.c" + +mp_map_elem_t btree_locals_dict_table[8]; +STATIC MP_DEFINE_CONST_DICT(btree_locals_dict, btree_locals_dict_table); + +STATIC mp_obj_t btree_open(size_t n_args, const mp_obj_t *args) { + // Make sure we got a stream object + mp_get_stream_raise(args[0], MP_STREAM_OP_READ | MP_STREAM_OP_WRITE | MP_STREAM_OP_IOCTL); + + BTREEINFO openinfo = {0}; + openinfo.flags = mp_obj_get_int(args[1]); + openinfo.cachesize = mp_obj_get_int(args[2]); + openinfo.psize = mp_obj_get_int(args[3]); + openinfo.minkeypage = mp_obj_get_int(args[4]); + DB *db = __bt_open(MP_OBJ_TO_PTR(args[0]), &btree_stream_fvtable, &openinfo, 0); + if (db == NULL) { + mp_raise_OSError(native_errno); + } + + return MP_OBJ_FROM_PTR(btree_new(db)); +} +STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(btree_open_obj, 5, 5, btree_open); + +mp_obj_t mpy_init(mp_obj_fun_bc_t *self, size_t n_args, size_t n_kw, mp_obj_t *args) { + MP_DYNRUNTIME_INIT_ENTRY + + btree_type.base.type = (void*)&mp_fun_table.type_type; + btree_type.name = MP_QSTR_btree; + btree_type.print = btree_print; + btree_type.getiter = btree_getiter; + btree_type.iternext = btree_iternext; + btree_type.binary_op = btree_binary_op; + btree_type.subscr = btree_subscr; + btree_locals_dict_table[0] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_close), MP_OBJ_FROM_PTR(&btree_close_obj) }; + btree_locals_dict_table[1] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_flush), MP_OBJ_FROM_PTR(&btree_flush_obj) }; + btree_locals_dict_table[2] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_get), MP_OBJ_FROM_PTR(&btree_get_obj) }; + btree_locals_dict_table[3] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_put), MP_OBJ_FROM_PTR(&btree_put_obj) }; + btree_locals_dict_table[4] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_seq), MP_OBJ_FROM_PTR(&btree_seq_obj) }; + btree_locals_dict_table[5] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_keys), MP_OBJ_FROM_PTR(&btree_keys_obj) }; + btree_locals_dict_table[6] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_values), MP_OBJ_FROM_PTR(&btree_values_obj) }; + btree_locals_dict_table[7] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_items), MP_OBJ_FROM_PTR(&btree_items_obj) }; + btree_type.locals_dict = (void*)&btree_locals_dict; + + mp_store_global(MP_QSTR__open, MP_OBJ_FROM_PTR(&btree_open_obj)); + mp_store_global(MP_QSTR_INCL, MP_OBJ_NEW_SMALL_INT(FLAG_END_KEY_INCL)); + mp_store_global(MP_QSTR_DESC, MP_OBJ_NEW_SMALL_INT(FLAG_DESC)); + + MP_DYNRUNTIME_INIT_EXIT +} diff --git a/examples/natmod/btree/btree_py.py b/examples/natmod/btree/btree_py.py new file mode 100644 index 0000000000..bd53c084a1 --- /dev/null +++ b/examples/natmod/btree/btree_py.py @@ -0,0 +1,3 @@ +# Implemented in Python to support keyword arguments +def open(stream, *, flags=0, cachesize=0, pagesize=0, minkeypage=0): + return _open(stream, flags, cachesize, pagesize, minkeypage) |