examples/natmod: Add uzlib example.

examples/natmod/uzlib/Makefile

@@ -0,0 +1,13 @@
+# Location of top-level MicroPython directory
+MPY_DIR = ../../..
+
+# Name of module (different to built-in uzlib so it can coexist)
+MOD = uzlib_$(ARCH)
+
+# Source files (.c or .py)
+SRC = uzlib.c
+
+# Architecture to build for (x86, x64, armv7m, xtensa, xtensawin)
+ARCH = x64
+
+include $(MPY_DIR)/py/dynruntime.mk

examples/natmod/uzlib/uzlib.c

@@ -0,0 +1,36 @@
+#define MICROPY_ENABLE_DYNRUNTIME (1)
+#define MICROPY_PY_UZLIB (1)
+
+#include "py/dynruntime.h"
+
+#if !defined(__linux__)
+void *memset(void *s, int c, size_t n) {
+    return mp_fun_table.memset_(s, c, n);
+}
+#endif
+
+mp_obj_type_t decompio_type;
+
+#include "extmod/moduzlib.c"
+
+mp_map_elem_t decompio_locals_dict_table[3];
+STATIC MP_DEFINE_CONST_DICT(decompio_locals_dict, decompio_locals_dict_table);
+
+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
+
+    decompio_type.base.type = mp_fun_table.type_type;
+    decompio_type.name = MP_QSTR_DecompIO;
+    decompio_type.make_new = decompio_make_new;
+    decompio_type.protocol = &decompio_stream_p;
+    decompio_locals_dict_table[0] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_read), MP_OBJ_FROM_PTR(&mp_stream_read_obj) };
+    decompio_locals_dict_table[1] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_readinto), MP_OBJ_FROM_PTR(&mp_stream_readinto_obj) };
+    decompio_locals_dict_table[2] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_readline), MP_OBJ_FROM_PTR(&mp_stream_unbuffered_readline_obj) };
+    decompio_type.locals_dict = (void*)&decompio_locals_dict;
+
+    mp_store_global(MP_QSTR___name__, MP_OBJ_NEW_QSTR(MP_QSTR_uzlib));
+    mp_store_global(MP_QSTR_decompress, MP_OBJ_FROM_PTR(&mod_uzlib_decompress_obj));
+    mp_store_global(MP_QSTR_DecompIO, MP_OBJ_FROM_PTR(&decompio_type));
+
+    MP_DYNRUNTIME_INIT_EXIT
+}