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# Test concurrency between filesystem access and BLE host. This is
# particularly relevant on STM32WB where the second core is stalled while
# flash operations are in progress.
from micropython import const
import time, machine, bluetooth, os
TIMEOUT_MS = 10000
LOG_PATH_INSTANCE0 = "stress_log_filesystem_0.log"
LOG_PATH_INSTANCE1 = "stress_log_filesystem_1.log"
_IRQ_CENTRAL_CONNECT = const(1)
_IRQ_CENTRAL_DISCONNECT = const(2)
_IRQ_GATTS_WRITE = const(3)
_IRQ_GATTS_READ_REQUEST = const(4)
_IRQ_PERIPHERAL_CONNECT = const(7)
_IRQ_PERIPHERAL_DISCONNECT = const(8)
_IRQ_GATTC_SERVICE_RESULT = const(9)
_IRQ_GATTC_SERVICE_DONE = const(10)
_IRQ_GATTC_CHARACTERISTIC_RESULT = const(11)
_IRQ_GATTC_CHARACTERISTIC_DONE = const(12)
_IRQ_GATTC_READ_RESULT = const(15)
_IRQ_GATTC_READ_DONE = const(16)
_IRQ_GATTC_WRITE_DONE = const(17)
SERVICE_UUID = bluetooth.UUID("A5A5A5A5-FFFF-9999-1111-5A5A5A5A5A5A")
CHAR_UUID = bluetooth.UUID("00000000-1111-2222-3333-444444444444")
CHAR = (
CHAR_UUID,
bluetooth.FLAG_READ | bluetooth.FLAG_WRITE | bluetooth.FLAG_NOTIFY | bluetooth.FLAG_INDICATE,
)
SERVICE = (
SERVICE_UUID,
(CHAR,),
)
SERVICES = (SERVICE,)
waiting_events = {}
log_file = None
def write_log(*args):
if log_file:
print(*args, file=log_file)
log_file.flush()
last_file_write = 0
def periodic_log_write():
global last_file_write
t = time.ticks_ms()
if time.ticks_diff(t, last_file_write) > 50:
write_log("tick")
last_file_write = t
def irq(event, data):
write_log("event", event)
if event == _IRQ_CENTRAL_CONNECT:
print("_IRQ_CENTRAL_CONNECT")
waiting_events[event] = data[0]
elif event == _IRQ_CENTRAL_DISCONNECT:
print("_IRQ_CENTRAL_DISCONNECT")
elif event == _IRQ_PERIPHERAL_CONNECT:
print("_IRQ_PERIPHERAL_CONNECT")
waiting_events[event] = data[0]
elif event == _IRQ_PERIPHERAL_DISCONNECT:
print("_IRQ_PERIPHERAL_DISCONNECT")
elif event == _IRQ_GATTC_SERVICE_RESULT:
# conn_handle, start_handle, end_handle, uuid = data
if data[-1] == SERVICE_UUID:
print("_IRQ_GATTC_SERVICE_RESULT", data[3])
waiting_events[event] = (data[1], data[2])
else:
return
elif event == _IRQ_GATTC_SERVICE_DONE:
print("_IRQ_GATTC_SERVICE_DONE")
elif event == _IRQ_GATTC_CHARACTERISTIC_RESULT:
# conn_handle, def_handle, value_handle, properties, uuid = data
if data[-1] == CHAR_UUID:
print("_IRQ_GATTC_CHARACTERISTIC_RESULT", data[-1])
waiting_events[event] = data[2]
else:
return
elif event == _IRQ_GATTC_CHARACTERISTIC_DONE:
print("_IRQ_GATTC_CHARACTERISTIC_DONE")
elif event == _IRQ_GATTC_READ_RESULT:
print("_IRQ_GATTC_READ_RESULT", bytes(data[-1]))
elif event == _IRQ_GATTC_READ_DONE:
print("_IRQ_GATTC_READ_DONE", data[-1])
elif event == _IRQ_GATTC_WRITE_DONE:
print("_IRQ_GATTC_WRITE_DONE", data[-1])
elif event == _IRQ_GATTS_WRITE:
print("_IRQ_GATTS_WRITE")
elif event == _IRQ_GATTS_READ_REQUEST:
print("_IRQ_GATTS_READ_REQUEST")
if event not in waiting_events:
waiting_events[event] = None
def wait_for_event(event, timeout_ms):
t0 = time.ticks_ms()
while time.ticks_diff(time.ticks_ms(), t0) < timeout_ms:
periodic_log_write()
if event in waiting_events:
return waiting_events.pop(event)
machine.idle()
raise ValueError("Timeout waiting for {}".format(event))
# Acting in peripheral role.
def instance0():
global log_file
log_file = open(LOG_PATH_INSTANCE0, "w")
write_log("start")
ble.active(1)
ble.irq(irq)
multitest.globals(BDADDR=ble.config("mac"))
((char_handle,),) = ble.gatts_register_services(SERVICES)
multitest.next()
try:
for repeat in range(2):
print("gap_advertise")
ble.gap_advertise(50_000, b"\x02\x01\x06\x04\xffMPY")
# Wait for central to connect, do a sequence of read/write, then disconnect.
wait_for_event(_IRQ_CENTRAL_CONNECT, TIMEOUT_MS)
for op in range(4):
wait_for_event(_IRQ_GATTS_READ_REQUEST, TIMEOUT_MS)
wait_for_event(_IRQ_GATTS_WRITE, TIMEOUT_MS)
wait_for_event(_IRQ_CENTRAL_DISCONNECT, 2 * TIMEOUT_MS)
finally:
ble.active(0)
log_file.close()
os.unlink(LOG_PATH_INSTANCE0)
# Acting in central role.
def instance1():
global log_file
log_file = open(LOG_PATH_INSTANCE1, "w")
write_log("start")
ble.active(1)
ble.irq(irq)
multitest.next()
try:
for repeat in range(2):
# Connect to peripheral and then disconnect.
print("gap_connect")
ble.gap_connect(BDADDR[0], BDADDR[1], 5000)
conn_handle = wait_for_event(_IRQ_PERIPHERAL_CONNECT, TIMEOUT_MS)
# Discover services.
print("gattc_discover_services")
ble.gattc_discover_services(conn_handle)
start_handle, end_handle = wait_for_event(_IRQ_GATTC_SERVICE_RESULT, TIMEOUT_MS)
wait_for_event(_IRQ_GATTC_SERVICE_DONE, TIMEOUT_MS)
# Discover characteristics.
print("gattc_discover_characteristics")
ble.gattc_discover_characteristics(conn_handle, start_handle, end_handle)
value_handle = wait_for_event(_IRQ_GATTC_CHARACTERISTIC_RESULT, TIMEOUT_MS)
wait_for_event(_IRQ_GATTC_CHARACTERISTIC_DONE, TIMEOUT_MS)
for op in range(4):
print("gattc_read")
ble.gattc_read(conn_handle, value_handle)
wait_for_event(_IRQ_GATTC_READ_RESULT, TIMEOUT_MS)
wait_for_event(_IRQ_GATTC_READ_DONE, TIMEOUT_MS)
print("gattc_write")
ble.gattc_write(conn_handle, value_handle, "{}".format(op), 1)
wait_for_event(_IRQ_GATTC_WRITE_DONE, TIMEOUT_MS)
# Disconnect.
print("gap_disconnect:", ble.gap_disconnect(conn_handle))
wait_for_event(_IRQ_PERIPHERAL_DISCONNECT, 2 * TIMEOUT_MS)
finally:
ble.active(0)
log_file.close()
os.unlink(LOG_PATH_INSTANCE1)
ble = bluetooth.BLE()
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