4692778468245504

Committed 20 May 2025 06:56AM UTC coverage: 59.536% (+0.006%) from 59.53%

Build # 4692778468245504

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push

CirrusCI

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web-flow

Commit Message

Merge pull request #9833 from f321x/use_asyncio_dnspython_methods

dns: use async dnspython interface

Run Details

26 of 56 new or added lines in 8 files covered. (46.43%)

5 existing lines in 4 files now uncovered.

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0.0

/electrum/utils/stacktracer.py

#!/usr/bin/env python
#
# Copyright (C) 2010 Laszlo Nagy (nagylzs)
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# Taken from: https://code.activestate.com/recipes/577334-how-to-debug-deadlocked-multi-threaded-programs/


"""Stack tracer for multi-threaded applications.
Useful for debugging deadlocks and hangs.

Usage:
    import stacktracer
    stacktracer.trace_start("trace.html", interval=5)
    ...
    stacktracer.trace_stop()

This will create a file named "trace.html" showing the stack traces of all threads,
updated every 5 seconds.
"""

import os
import sys
import threading
import time
import traceback
from typing import Optional

# 3rd-party dependency:
from pygments import highlight
from pygments.lexers import PythonLexer
from pygments.formatters import HtmlFormatter


def _thread_from_id(ident) -> Optional[threading.Thread]:
    return threading._active.get(ident)


def stacktraces():
    """Taken from http://bzimmer.ziclix.com/2008/12/17/python-thread-dumps/"""
    code = []
    for thread_id, stack in sys._current_frames().items():
        thread = _thread_from_id(thread_id)
        code.append(f"\n# thread_id={thread_id}. thread={thread}")
        for filename, lineno, name, line in traceback.extract_stack(stack):
            code.append(f'File: "{filename}", line {lineno}, in {name}')
            if line:
                code.append("  %s" % (line.strip()))

    return highlight("\n".join(code), PythonLexer(), HtmlFormatter(
        full=False,
        # style="native",
        noclasses=True,
    ))


class TraceDumper(threading.Thread):
    """Dump stack traces into a given file periodically.

    # written by nagylzs
    """

    def __init__(self, fpath, interval, auto):
        """
        @param fpath: File path to output HTML (stack trace file)
        @param auto: Set flag (True) to update trace continuously.
            Clear flag (False) to update only if file not exists.
            (Then delete the file to force update.)
        @param interval: In seconds: how often to update the trace file.
        """
        assert (interval > 0.1)
        self.auto = auto
        self.interval = interval
        self.fpath = os.path.abspath(fpath)
        self.stop_requested = threading.Event()
        threading.Thread.__init__(self)

    def run(self):
        while not self.stop_requested.is_set():
            time.sleep(self.interval)
            if self.auto or not os.path.isfile(self.fpath):
                self.dump_stacktraces()

    def stop(self):
        self.stop_requested.set()
        self.join()
        try:
            if os.path.isfile(self.fpath):
                os.unlink(self.fpath)
        except OSError:
            pass

    def dump_stacktraces(self):
        with open(self.fpath, "w+") as fout:
            fout.write(stacktraces())


_tracer = None  # type: Optional[TraceDumper]


def trace_start(fpath, interval=5, *, auto=True):
    """Start tracing into the given file."""
    global _tracer
    if _tracer is None:
        _tracer = TraceDumper(fpath, interval, auto)
        _tracer.daemon = True
        _tracer.start()
    else:
        raise Exception("Already tracing to %s" % _tracer.fpath)


def trace_stop():
    """Stop tracing."""
    global _tracer
    if _tracer is None:
        raise Exception("Not tracing, cannot stop.")
    else:
        _tracer.stop()
        _tracer = None

1	#!/usr/bin/env python
2	#
3	# Copyright (C) 2010 Laszlo Nagy (nagylzs)
4	#
5	# Permission is hereby granted, free of charge, to any person
6	# obtaining a copy of this software and associated documentation files
7	# (the "Software"), to deal in the Software without restriction,
8	# including without limitation the rights to use, copy, modify, merge,
9	# publish, distribute, sublicense, and/or sell copies of the Software,
10	# and to permit persons to whom the Software is furnished to do so,
11	# subject to the following conditions:
12	#
13	# The above copyright notice and this permission notice shall be
14	# included in all copies or substantial portions of the Software.
15	#
16	# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17	# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18	# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19	# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20	# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21	# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22	# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23	# SOFTWARE.
24	#
25	# Taken from: https://code.activestate.com/recipes/577334-how-to-debug-deadlocked-multi-threaded-programs/
26
27
UNCOV 28	"""Stack tracer for multi-threaded applications.
29	Useful for debugging deadlocks and hangs.
30
31	Usage:
32	import stacktracer
33	stacktracer.trace_start("trace.html", interval=5)
34	...
35	stacktracer.trace_stop()
36
37	This will create a file named "trace.html" showing the stack traces of all threads,
38	updated every 5 seconds.
39	"""
40
41	import os	×
42	import sys	×
43	import threading	×
44	import time	×
45	import traceback	×
46	from typing import Optional	×
47
48	# 3rd-party dependency:
49	from pygments import highlight	×
50	from pygments.lexers import PythonLexer	×
51	from pygments.formatters import HtmlFormatter	×
52
53
54	def _thread_from_id(ident) -> Optional[threading.Thread]:	×
55	return threading._active.get(ident)	×
56
57
58	def stacktraces():	×
59	"""Taken from http://bzimmer.ziclix.com/2008/12/17/python-thread-dumps/"""
60	code = []	×
61	for thread_id, stack in sys._current_frames().items():	×
62	thread = _thread_from_id(thread_id)	×
63	code.append(f"\n# thread_id={thread_id}. thread={thread}")	×
64	for filename, lineno, name, line in traceback.extract_stack(stack):	×
65	code.append(f'File: "{filename}", line {lineno}, in {name}')	×
66	if line:	×
67	code.append(" %s" % (line.strip()))	×
68
69	return highlight("\n".join(code), PythonLexer(), HtmlFormatter(	×
70	full=False,
71	# style="native",
72	noclasses=True,
73	))
74
75
76	class TraceDumper(threading.Thread):	×
77	"""Dump stack traces into a given file periodically.
78
79	# written by nagylzs
80	"""
81
82	def __init__(self, fpath, interval, auto):	×
83	"""
84	@param fpath: File path to output HTML (stack trace file)
85	@param auto: Set flag (True) to update trace continuously.
86	Clear flag (False) to update only if file not exists.
87	(Then delete the file to force update.)
88	@param interval: In seconds: how often to update the trace file.
89	"""
90	assert (interval > 0.1)	×
91	self.auto = auto	×
92	self.interval = interval	×
93	self.fpath = os.path.abspath(fpath)	×
94	self.stop_requested = threading.Event()	×
95	threading.Thread.__init__(self)	×
96
97	def run(self):	×
98	while not self.stop_requested.is_set():	×
99	time.sleep(self.interval)	×
100	if self.auto or not os.path.isfile(self.fpath):	×
101	self.dump_stacktraces()	×
102
103	def stop(self):	×
104	self.stop_requested.set()	×
105	self.join()	×
106	try:	×
107	if os.path.isfile(self.fpath):	×
108	os.unlink(self.fpath)	×
109	except OSError:	×
110	pass	×
111
112	def dump_stacktraces(self):	×
113	with open(self.fpath, "w+") as fout:	×
114	fout.write(stacktraces())	×
115
116
117	_tracer = None # type: Optional[TraceDumper]	×
118
119
120	def trace_start(fpath, interval=5, *, auto=True):	×
121	"""Start tracing into the given file."""
122	global _tracer
123	if _tracer is None:	×
124	_tracer = TraceDumper(fpath, interval, auto)	×
125	_tracer.daemon = True	×
126	_tracer.start()	×
127	else:
128	raise Exception("Already tracing to %s" % _tracer.fpath)	×
129
130
131	def trace_stop():	×
132	"""Stop tracing."""
133	global _tracer
134	if _tracer is None:	×
135	raise Exception("Not tracing, cannot stop.")	×
136	else:
137	_tracer.stop()	×
138	_tracer = None	×

spesmilo / electrum / 4692778468245504

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