ensure OS signals hit main-thread as intended;

use sigmasks to block SIGINT, SIGTERM, SIGUSR1 from all other threads

also initiate shutdown by calling sighandler directly,
in case this misses anything and that is still unreliable
(discovered by `--exit=idx` being noop once in a blue moon)

bin/u2c.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 from __future__ import print_function, unicode_literals
 
-S_VERSION = "1.16"
-S_BUILD_DT = "2024-04-20"
+S_VERSION = "1.17"
+S_BUILD_DT = "2024-05-09"
 
 """
 u2c.py: upload to copyparty
@@ -79,12 +79,21 @@ req_ses = requests.Session()
 
 
 class Daemon(threading.Thread):
-    def __init__(self, target, name=None, a=None):
-        # type: (Any, Any, Any) -> None
-        threading.Thread.__init__(self, target=target, args=a or (), name=name)
+    def __init__(self, target, name = None, a = None):
+        threading.Thread.__init__(self, name=name)
+        self.a = a or ()
+        self.fun = target
         self.daemon = True
         self.start()
 
+    def run(self):
+        try:
+            signal.pthread_sigmask(signal.SIG_BLOCK, [signal.SIGINT, signal.SIGTERM])
+        except:
+            pass
+
+        self.fun(*self.a)
+
 
 class File(object):
     """an up2k upload task; represents a single file"""

copyparty/__main__.py

@@ -49,6 +49,7 @@ from .util import (
     PYFTPD_VER,
     SQLITE_VER,
     UNPLICATIONS,
+    Daemon,
     align_tab,
     ansi_re,
     dedent,
@@ -471,6 +472,16 @@ def disable_quickedit() -> None:
             cmode(True, mode | 4)
 
 
+def sfx_tpoke(top: str):
+    files = [os.path.join(dp, p) for dp, dd, df in os.walk(top) for p in dd + df]
+    while True:
+        t = int(time.time())
+        for f in [top] + files:
+            os.utime(f, (t, t))
+
+        time.sleep(78123)
+
+
 def showlic() -> None:
     p = os.path.join(E.mod, "res", "COPYING.txt")
     if not os.path.exists(p):
@@ -1454,6 +1465,12 @@ def main(argv: Optional[list[str]] = None, rsrc: Optional[str] = None) -> None:
     if EXE:
         print("pybin: {}\n".format(pybin), end="")
 
+    for n, zs in enumerate(argv):
+        if zs.startswith("--sfx-tpoke="):
+            Daemon(sfx_tpoke, "sfx-tpoke", (zs.split("=", 1)[1],))
+            argv.pop(n)
+            break
+
     ensure_locale()
 
     ensure_webdeps()

copyparty/broker_mp.py

@@ -57,11 +57,8 @@ class BrokerMp(object):
     def shutdown(self) -> None:
         self.log("broker", "shutting down")
         for n, proc in enumerate(self.procs):
-            thr = threading.Thread(
-                target=proc.q_pend.put((0, "shutdown", [])),
-                name="mp-shutdown-{}-{}".format(n, len(self.procs)),
-            )
-            thr.start()
+            name = "mp-shut-%d-%d" % (n, len(self.procs))
+            Daemon(proc.q_pend.put, name, ((0, "shutdown", []),))
 
         with self.mutex:
             procs = self.procs

copyparty/httpsrv.py

@@ -266,10 +266,7 @@ class HttpSrv(object):
         msg = "subscribed @ {}:{}  f{} p{}".format(hip, port, fno, os.getpid())
         self.log(self.name, msg)
 
-        def fun() -> None:
-            self.broker.say("cb_httpsrv_up")
-
-        threading.Thread(target=fun, name="sig-hsrv-up1").start()
+        Daemon(self.broker.say, "sig-hsrv-up1", ("cb_httpsrv_up",))
 
         while not self.stopping:
             if self.args.log_conn:

copyparty/smbd.py

@@ -127,7 +127,7 @@ class SMB(object):
         self.log("smb", msg, c)
 
     def start(self) -> None:
-        Daemon(self.srv.start)
+        Daemon(self.srv.start, "smbd")
 
     def _auth_cb(self, *a, **ka):
         debug("auth-result: %s %s", a, ka)

copyparty/svchub.py

@@ -293,13 +293,14 @@ class SvcHub(object):
             from .ftpd import Ftpd
 
             self.ftpd: Optional[Ftpd] = None
-            Daemon(self.start_ftpd, "start_ftpd")
             zms += "f" if args.ftp else "F"
 
         if args.tftp:
             from .tftpd import Tftpd
 
             self.tftpd: Optional[Tftpd] = None
+
+        if args.ftp or args.ftps or args.tftp:
             Daemon(self.start_ftpd, "start_tftpd")
 
         if args.smb:
@@ -388,7 +389,7 @@ class SvcHub(object):
         self.sigterm()
 
     def sigterm(self) -> None:
-        os.kill(os.getpid(), signal.SIGTERM)
+        self.signal_handler(signal.SIGTERM, None)
 
     def cb_httpsrv_up(self) -> None:
         self.httpsrv_up += 1

copyparty/up2k.py

@@ -10,7 +10,6 @@ import math
 import os
 import re
 import shutil
-import signal
 import stat
 import subprocess as sp
 import tempfile
@@ -1659,7 +1658,7 @@ class Up2k(object):
 
         if e2vp and rewark:
             self.hub.retcode = 1
-            os.kill(os.getpid(), signal.SIGTERM)
+            Daemon(self.hub.sigterm)
             raise Exception("{} files have incorrect hashes".format(len(rewark)))
 
         if not e2vu or not rewark:

copyparty/util.py

@@ -463,13 +463,20 @@ class Daemon(threading.Thread):
         r: bool = True,
         ka: Optional[dict[Any, Any]] = None,
     ) -> None:
-        threading.Thread.__init__(
-            self, target=target, name=name, args=a or (), kwargs=ka
-        )
+        threading.Thread.__init__(self, name=name)
+        self.a = a or ()
+        self.ka = ka or {}
+        self.fun = target
         self.daemon = True
         if r:
             self.start()
 
+    def run(self):
+        if not ANYWIN and not PY2:
+            signal.pthread_sigmask(signal.SIG_BLOCK, [signal.SIGINT, signal.SIGTERM, signal.SIGUSR1])
+
+        self.fun(*self.a, **self.ka)
+
 
 class Netdev(object):
     def __init__(self, ip: str, idx: int, name: str, desc: str):
@@ -864,6 +871,7 @@ class ProgressPrinter(threading.Thread):
         self.start()
 
     def run(self) -> None:
+        sigblock()
         tp = 0
         msg = None
         no_stdout = self.args.q
@@ -1308,6 +1316,13 @@ def log_thrs(log: Callable[[str, str, int], None], ival: float, name: str) -> No
         log(name, "\033[0m \033[33m".join(tv), 3)
 
 
+def sigblock():
+    if ANYWIN or PY2:
+        return
+
+    signal.pthread_sigmask(signal.SIG_BLOCK, [signal.SIGINT, signal.SIGTERM, signal.SIGUSR1])
+
+
 def vol_san(vols: list["VFS"], txt: bytes) -> bytes:
     txt0 = txt
     for vol in vols:
@@ -1329,9 +1344,10 @@ def vol_san(vols: list["VFS"], txt: bytes) -> bytes:
 
 def min_ex(max_lines: int = 8, reverse: bool = False) -> str:
     et, ev, tb = sys.exc_info()
-    stb = traceback.extract_tb(tb)
+    stb = traceback.extract_tb(tb) if tb else traceback.extract_stack()[:-1]
     fmt = "%s @ %d <%s>: %s"
     ex = [fmt % (fp.split(os.sep)[-1], ln, fun, txt) for fp, ln, fun, txt in stb]
+    if et or ev or tb:
         ex.append("[%s] %s" % (et.__name__ if et else "(anonymous)", ev))
     return "\n".join(ex[-max_lines:][:: -1 if reverse else 1])
 

scripts/sfx.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # coding: latin-1
 from __future__ import print_function, unicode_literals
-import re, os, sys, time, shutil, signal, threading, tarfile, hashlib, platform, tempfile, traceback
+import re, os, sys, time, shutil, signal, tarfile, hashlib, platform, tempfile, traceback
 import subprocess as sp
 
 
@@ -368,17 +368,6 @@ def get_payload():
             p = a
 
 
-def utime(top):
-    # avoid cleaners
-    files = [os.path.join(dp, p) for dp, dd, df in os.walk(top) for p in dd + df]
-    while True:
-        t = int(time.time())
-        for f in [top] + files:
-            os.utime(f, (t, t))
-
-        time.sleep(78123)
-
-
 def confirm(rv):
     msg()
     msg("retcode", rv if rv else traceback.format_exc())
@@ -398,9 +387,7 @@ def run(tmp, j2, ftp):
     msg("sfxdir:", tmp)
     msg()
 
-    t = threading.Thread(target=utime, args=(tmp,), name="utime")
-    t.daemon = True
-    t.start()
+    sys.argv.append("--sfx-tpoke=" + tmp)
 
     ld = (("", ""), (j2, "j2"), (ftp, "ftp"), (not PY2, "py2"), (PY37, "py37"))
     ld = [os.path.join(tmp, b) for a, b in ld if not a]

scripts/ziploader.py

@@ -6,7 +6,6 @@ import platform
 import sys
 import tarfile
 import tempfile
-import threading
 import time
 import traceback
 
@@ -80,9 +79,7 @@ def run():
     msg("  rsrc dir:", rsrc)
     msg()
 
-    t = threading.Thread(target=utime, args=(rsrc,), name="utime")
-    t.daemon = True
-    t.start()
+    sys.argv.append("--sfx-tpoke=" + rsrc)
 
     cm(rsrc=rsrc)