184 lines
6.8 KiB
Python
184 lines
6.8 KiB
Python
#!/usr/bin/env python
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# License: GPLv3 Copyright: 2022, Kovid Goyal <kovid at kovidgoyal.net>
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import json
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import os
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import select
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import signal
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import subprocess
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import tempfile
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import time
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from contextlib import suppress
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from kitty.constants import kitty_exe
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from kitty.fast_data_types import (
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CLD_EXITED, CLD_KILLED, get_options, has_sigqueue, install_signal_handlers,
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read_signals, remove_signal_handlers, sigqueue
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)
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from . import BaseTest
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class Prewarm(BaseTest):
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maxDiff = None
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def test_socket_prewarming(self):
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from kitty.prewarm import fork_prewarm_process, wait_for_child_death
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exit_code = 17
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src = '''\
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def socket_child_main(exit_code=0):
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import json
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import os
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import sys
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from kitty.fast_data_types import get_options
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from kitty.utils import read_screen_size
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output = {
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'test_env': os.environ.get('TEST_ENV_PASS', ''),
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'cwd': os.path.realpath(os.getcwd()),
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'font_family': get_options().font_family,
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'cols': read_screen_size(fd=sys.stderr.fileno()).cols,
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'stdin_data': sys.stdin.read(),
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'done': 'hello',
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}
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print(json.dumps(output, indent=2), file=sys.stderr, flush=True)
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print('testing stdout', end='')
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raise SystemExit(exit_code)
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''' + '\n\n'
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cwd = os.path.realpath(tempfile.gettempdir())
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opts = self.set_options()
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opts.config_overrides = 'font_family prewarm',
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p = fork_prewarm_process(opts, use_exec=True)
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if p is None:
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return
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env = os.environ.copy()
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env.update({'TEST_ENV_PASS': 'xyz', 'KITTY_PREWARM_SOCKET': p.socket_env_var()})
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cols = 117
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stdin_r, stdin_w = os.pipe()
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os.set_inheritable(stdin_w, False)
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stdout_r, stdout_w = os.pipe()
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os.set_inheritable(stdout_r, False)
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pty = self.create_pty(
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argv=[kitty_exe(), '+runpy', src + f'socket_child_main({exit_code})'], cols=cols, env=env, cwd=cwd,
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stdin_fd=stdin_r, stdout_fd=stdout_w)
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stdin_data = 'testing--stdin-read'
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with open(stdin_w, 'w') as f:
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f.write(stdin_data)
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with open(stdout_r) as f:
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stdout_data = f.read()
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status = wait_for_child_death(pty.child_pid, timeout=5)
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if status is None:
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os.kill(pty.child_pid, signal.SIGKILL)
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self.assertIsNotNone(status, 'prewarm wrapper process did not exit')
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with suppress(AttributeError):
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self.assertEqual(os.waitstatus_to_exitcode(status), exit_code)
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pty.wait_till(lambda: 'hello' in pty.screen_contents())
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output = json.loads(pty.screen_contents().strip())
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self.assertEqual(output['test_env'], env['TEST_ENV_PASS'])
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self.assertEqual(output['cwd'], cwd)
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self.assertEqual(output['font_family'], 'prewarm')
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self.assertEqual(output['cols'], cols)
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self.assertEqual(output['stdin_data'], stdin_data)
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self.assertEqual(stdout_data, 'testing stdout')
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def test_prewarming(self):
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from kitty.prewarm import fork_prewarm_process
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cwd = tempfile.gettempdir()
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env = {'TEST_ENV_PASS': 'xyz'}
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cols = 117
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stdin_data = 'from_stdin'
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pty = self.create_pty(cols=cols)
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ttyname = os.ttyname(pty.slave_fd)
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opts = get_options()
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opts.config_overrides = 'font_family prewarm',
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p = fork_prewarm_process(opts, use_exec=True)
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if p is None:
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return
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p.take_from_worker_fd(create_file=True)
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child = p(pty.slave_fd, [kitty_exe(), '+runpy', """\
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import os, json; from kitty.utils import *; from kitty.fast_data_types import get_options; print(json.dumps({
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'cterm': os.ctermid(),
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'ttyname': os.ttyname(sys.stdout.fileno()),
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'cols': read_screen_size().cols,
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'cwd': os.getcwd(),
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'env': os.environ.get('TEST_ENV_PASS'),
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'pid': os.getpid(),
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'font_family': get_options().font_family,
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'stdin': sys.stdin.read(),
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'done': 'hello',
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}, indent=2))"""], cwd=cwd, env=env, stdin_data=stdin_data)
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self.assertFalse(pty.screen_contents().strip())
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p.mark_child_as_ready(child.child_id)
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pty.wait_till(lambda: 'hello' in pty.screen_contents())
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data = json.loads(pty.screen_contents())
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self.ae(data['cols'], cols)
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self.assertTrue(data['cterm'])
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self.ae(data['ttyname'], ttyname)
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self.ae(os.path.realpath(data['cwd']), os.path.realpath(cwd))
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self.ae(data['env'], env['TEST_ENV_PASS'])
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self.ae(data['font_family'], 'prewarm')
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self.ae(int(p.from_worker.readline()), data['pid'])
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def test_signal_handling(self):
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expecting_code = 0
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expecting_signal = 0
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expecting_value = 0
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found_signal = False
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def handle_signal(siginfo):
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nonlocal found_signal
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if expecting_signal:
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self.ae(siginfo.si_signo, expecting_signal)
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if expecting_code is not None:
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self.ae(siginfo.si_code, expecting_code)
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self.ae(siginfo.sival_int, expecting_value)
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if expecting_code in (CLD_EXITED, CLD_KILLED):
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p.wait(1)
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p.stdin.close()
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found_signal = True
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def assert_signal():
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nonlocal found_signal
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found_signal = False
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st = time.monotonic()
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while time.monotonic() - st < 5:
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for (fd, event) in poll.poll(10):
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if fd == signal_read_fd:
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read_signals(signal_read_fd, handle_signal)
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if found_signal:
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break
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self.assertTrue(found_signal, f'Failed to to get SIGCHLD for signal {signal}')
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def t(signal, q, expecting_sig=signal.SIGCHLD):
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nonlocal expecting_code, found_signal, expecting_signal
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expecting_code = q
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expecting_signal = expecting_sig.value
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if signal is not None:
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p.send_signal(signal)
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assert_signal()
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poll = select.poll()
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p = subprocess.Popen([kitty_exe(), '+runpy', 'input()'], stderr=subprocess.DEVNULL, stdin=subprocess.PIPE)
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signal_read_fd = install_signal_handlers(signal.SIGCHLD, signal.SIGUSR1)[0]
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try:
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poll.register(signal_read_fd, select.POLLIN)
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t(signal.SIGINT, CLD_KILLED)
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p = subprocess.Popen([kitty_exe(), '+runpy', 'input()'], stderr=subprocess.DEVNULL, stdin=subprocess.PIPE)
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p.stdin.close()
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t(None, os.CLD_EXITED)
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expecting_code = None
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expecting_signal = signal.SIGUSR1.value
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os.kill(os.getpid(), signal.SIGUSR1)
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assert_signal()
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expecting_value = 17 if has_sigqueue else 0
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sigqueue(os.getpid(), signal.SIGUSR1.value, expecting_value)
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assert_signal()
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finally:
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remove_signal_handlers()
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