8a3546b3bd
This commit adds a significant portion of the existing MicroPython asyncio module to the webassembly port, using parts of the existing asyncio code and some custom JavaScript parts. The key difference to the standard asyncio is that this version uses the JavaScript runtime to do the actual scheduling and waiting on events, eg Promise fulfillment, timeouts, fetching URLs. This implementation does not include asyncio.run(). Instead one just uses asyncio.create_task(..) to start tasks and then returns to the JavaScript. Then JavaScript will run the tasks. The implementation here tries to reuse as much existing asyncio code as possible, and gets all the semantics correct for things like cancellation and asyncio.wait_for. An alternative approach would reimplement Task, Event, etc using JavaScript Promise's. That approach is very difficult to get right when trying to implement cancellation (because it's not possible to cancel a JavaScript Promise). Signed-off-by: Damien George <damien@micropython.org>
157 lines
3.9 KiB
Makefile
157 lines
3.9 KiB
Makefile
################################################################################
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# Initial setup of Makefile environment.
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# Select the variant to build for:
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ifdef VARIANT_DIR
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# Custom variant path - remove trailing slash and get the final component of
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# the path as the variant name.
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VARIANT ?= $(notdir $(VARIANT_DIR:/=))
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else
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# If not given on the command line, then default to standard.
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VARIANT ?= standard
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VARIANT_DIR ?= variants/$(VARIANT)
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endif
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ifeq ($(wildcard $(VARIANT_DIR)/.),)
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$(error Invalid VARIANT specified: $(VARIANT_DIR))
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endif
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# If the build directory is not given, make it reflect the variant name.
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BUILD ?= build-$(VARIANT)
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include ../../py/mkenv.mk
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include $(VARIANT_DIR)/mpconfigvariant.mk
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# Use the default frozen manifest, variants may override this.
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FROZEN_MANIFEST ?= variants/manifest.py
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# Qstr definitions (must come before including py.mk).
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QSTR_DEFS = qstrdefsport.h
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# Include py core make definitions.
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include $(TOP)/py/py.mk
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include $(TOP)/extmod/extmod.mk
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################################################################################
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# Project specific settings and compiler/linker flags.
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CC = emcc
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LD = emcc
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NODE ?= node
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TERSER ?= npx terser
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INC += -I.
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INC += -I$(TOP)
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INC += -I$(BUILD)
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INC += -I$(VARIANT_DIR)
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CFLAGS += -std=c99 -Wall -Werror -Wdouble-promotion -Wfloat-conversion
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CFLAGS += -Os -DNDEBUG
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CFLAGS += $(INC)
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EXPORTED_FUNCTIONS_EXTRA += ,\
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_mp_js_do_exec,\
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_mp_js_do_exec_async,\
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_mp_js_do_import,\
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_mp_js_register_js_module,\
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_proxy_c_init,\
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_proxy_c_to_js_call,\
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_proxy_c_to_js_delete_attr,\
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_proxy_c_to_js_dir,\
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_proxy_c_to_js_get_array,\
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_proxy_c_to_js_get_dict,\
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_proxy_c_to_js_get_type,\
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_proxy_c_to_js_has_attr,\
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_proxy_c_to_js_lookup_attr,\
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_proxy_c_to_js_resume,\
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_proxy_c_to_js_store_attr,\
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_proxy_convert_mp_to_js_obj_cside
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EXPORTED_RUNTIME_METHODS_EXTRA += ,\
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PATH,\
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PATH_FS,\
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UTF8ToString,\
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getValue,\
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lengthBytesUTF8,\
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setValue,\
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stringToUTF8
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JSFLAGS += -s EXPORTED_FUNCTIONS="\
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_free,\
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_malloc,\
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_mp_js_init,\
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_mp_js_repl_init,\
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_mp_js_repl_process_char,\
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_mp_hal_get_interrupt_char,\
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_mp_sched_keyboard_interrupt$(EXPORTED_FUNCTIONS_EXTRA)"
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JSFLAGS += -s EXPORTED_RUNTIME_METHODS="\
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ccall,\
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cwrap,\
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FS$(EXPORTED_RUNTIME_METHODS_EXTRA)"
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JSFLAGS += --js-library library.js
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JSFLAGS += -s SUPPORT_LONGJMP=emscripten
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JSFLAGS += -s MODULARIZE -s EXPORT_NAME=_createMicroPythonModule
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################################################################################
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# Source files and libraries.
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SRC_SHARED = $(addprefix shared/,\
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runtime/interrupt_char.c \
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runtime/stdout_helpers.c \
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runtime/pyexec.c \
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readline/readline.c \
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timeutils/timeutils.c \
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)
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SRC_C += \
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lexer_dedent.c \
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main.c \
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modjs.c \
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modjsffi.c \
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mphalport.c \
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objjsproxy.c \
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proxy_c.c \
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# List of sources for qstr extraction.
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SRC_QSTR += $(SRC_C) $(SRC_SHARED)
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SRC_JS += \
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api.js \
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objpyproxy.js \
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proxy_js.js \
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OBJ += $(PY_O)
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OBJ += $(addprefix $(BUILD)/, $(SRC_SHARED:.c=.o))
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OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
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################################################################################
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# Main targets.
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.PHONY: all repl min test test_min
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all: $(BUILD)/micropython.mjs
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$(BUILD)/micropython.mjs: $(OBJ) library.js $(SRC_JS)
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$(ECHO) "LINK $@"
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$(Q)emcc $(LDFLAGS) -o $@ $(OBJ) $(JSFLAGS)
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$(Q)cat $(SRC_JS) >> $@
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$(BUILD)/micropython.min.mjs: $(BUILD)/micropython.mjs
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$(TERSER) $< --compress --module -o $@
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repl: $(BUILD)/micropython.mjs
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$(NODE) $<
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min: $(BUILD)/micropython.min.mjs
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test: $(BUILD)/micropython.mjs $(TOP)/tests/run-tests.py
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cd $(TOP)/tests && MICROPY_MICROPYTHON_MJS=../ports/webassembly/$< ./run-tests.py --target webassembly
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test_min: $(BUILD)/micropython.min.mjs $(TOP)/tests/run-tests.py
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cd $(TOP)/tests && MICROPY_MICROPYTHON_MJS=../ports/webassembly/$< ./run-tests.py --target webassembly
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################################################################################
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# Remaining make rules.
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include $(TOP)/py/mkrules.mk
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