# Copyright 2021 Magomed Kostoev
# Published under MIT License
import io
import os
import sys
import subprocess
import timeit
import time
import shlex
import signal
import shutil
from . makeflop import Floppy
def is_win32():
return True if sys.platform == "win32" else False
def is_linux():
return True if sys.platform == "linux" or sys.platform == "linux2" else False
def is_osx():
return True if sys.platform == "darwin" else False
class TestTimeoutException(Exception):
pass
class TestFailureException(Exception):
def __init__(self, message):
self.message = message
class Qemu:
def __init__(self, popen, debug_log):
self.popen = popen
# Qemu needs time to create debug.log file
while not os.path.exists(debug_log) and self.qemu_is_alive():
self.wait(0.250)
self.assert_qemu_not_died("waiting for the debug log file")
self.debug = open(debug_log, "rb")
def qemu_is_alive(self):
return self.popen.poll() == None
def assert_qemu_not_died(self, while_):
if not self.qemu_is_alive():
raise TestFailureException(f"Qemu has finished while {while_}.")
def wait_for_debug_log(self, needle, timeout = 1):
needle = bytes(needle, "utf-8")
start = timeit.default_timer()
log = b""
# While no timeout, read and search logs
while timeit.default_timer() - start < timeout:
# TODO: Non-blocking read.
log += self.debug.read(1)
if needle in log:
return
# We don't have to read whole logs to find the neddle
# If we read len(needle) * 2 bytes of log then we
# already can say that if there's no needle in the data
# then it can't be in first len(needle) bytes of the data
# so first len(needle) bytes of saved logs may be thrown away
#
# So we consume lessser memory and don't search all the previous
# logs every single time
if len(log) > len(needle) * 2:
log = log[len(needle):]
self.assert_qemu_not_died("waiting for the debug log")
self.timeout()
def kill(self):
if is_win32():
# FIXME: This is shit, isn't there anything better?
subprocess.Popen(f"TASKKILL /F /PID {self.popen.pid} /T", stdout = subprocess.DEVNULL, stderr = subprocess.DEVNULL, stdin = subprocess.DEVNULL)
else:
os.killpg(os.getpgid(self.popen.pid), signal.SIGTERM)
def timeout(self):
self.kill()
raise TestTimeoutException()
def wait(self, seconds):
time.sleep(seconds)
def run_qemu(root_dir, test_dir, debug_log):
# Make local copy of IMG, so we will be able to run the test in parallel
if os.path.exists(f"{test_dir}/kolibri_test.img"): # If previous test run interrupted the file may be busy
os.remove(f"{test_dir}/kolibri_test.img")
shutil.copyfile(f"{root_dir}/kolibri_test.img", f"{test_dir}/kolibri_test.img")
qemu_command = f"qemu-system-i386"
flags = ""
flags += "-nographic " # Makes it faster
flags += f"-debugcon file:{debug_log} " # 0xe9 port output
flags += "-L . " # IDK why it does not work without this
flags += "-m 128 "
flags += f"-drive format=raw,file={test_dir}/kolibri_test.img,index=0,if=floppy -boot a "
flags += "-vga vmware "
flags += "-net nic,model=rtl8139 -net user "
flags += "-soundhw ac97 "
if is_win32():
qemu_full_path = shutil.which(qemu_command)
qemu_directory = os.path.dirname(qemu_full_path)
flags += f"-L {qemu_directory} "
s = f"{qemu_command} {flags}"
qemu_stdout = open(f"{test_dir}/qemu_stdout.log", "w")
qemu_stderr = open(f"{test_dir}/qemu_stderr.log", "w")
if is_win32():
return subprocess.Popen(s, bufsize = 0, stdout = qemu_stdout, stderr = qemu_stderr, stdin = subprocess.DEVNULL, shell = True, start_new_session = True)
else:
a = shlex.split(s)
return subprocess.Popen(a, bufsize = 0, stdout = qemu_stdout, stderr = qemu_stderr, stdin = subprocess.DEVNULL, start_new_session = True)
def run(root_dir, test_dir):
debug_log = f"{test_dir}/debug.log"
if os.path.exists(debug_log):
os.remove(debug_log)
popen = run_qemu(root_dir, test_dir, debug_log)
return Qemu(popen, debug_log)