This is patch
[ 559250 ] more POSIX signal stuff
Adds support (and docs and tests and autoconfery) for posix signal
mask handling -- sigpending, sigprocmask and sigsuspend.
diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py
index 05bdcab..78b90b7 100644
--- a/Lib/test/test_signal.py
+++ b/Lib/test/test_signal.py
@@ -1,8 +1,7 @@
# Test the signal module
-from test_support import verbose, TestSkipped
+from test_support import verbose, TestSkipped, TestFailed
import signal
-import os
-import sys
+import os, sys, time
if sys.platform[:3] in ('win', 'os2') or sys.platform=='riscos':
raise TestSkipped, "Can't test signal on %s" % sys.platform
@@ -64,3 +63,66 @@
except KeyboardInterrupt:
if verbose:
print "KeyboardInterrupt (assume the alarm() went off)"
+
+
+if hasattr(signal, "sigprocmask"):
+ class HupDelivered(Exception):
+ pass
+ def hup(signum, frame):
+ raise HupDelivered
+ def hup2(signum, frame):
+ signal.signal(signal.SIGHUP, hup)
+ return
+ signal.signal(signal.SIGHUP, hup)
+
+ if verbose:
+ print "blocking SIGHUP"
+
+ defaultmask = signal.sigprocmask(signal.SIG_BLOCK, [signal.SIGHUP])
+
+ if verbose:
+ print "sending SIGHUP"
+
+ try:
+ os.kill(pid, signal.SIGHUP)
+ except HupDelivered:
+ raise TestFailed, "HUP not blocked"
+
+ if signal.SIGHUP not in signal.sigpending():
+ raise TestFailed, "HUP not pending"
+
+ if verbose:
+ print "unblocking SIGHUP"
+
+ try:
+ signal.sigprocmask(signal.SIG_UNBLOCK, [signal.SIGHUP])
+ except HupDelivered:
+ pass
+ else:
+ raise TestFailed, "HUP not delivered"
+
+ if verbose:
+ print "testing sigsuspend"
+
+ signal.sigprocmask(signal.SIG_BLOCK, [signal.SIGHUP])
+ signal.signal(signal.SIGHUP, hup2)
+
+ if not os.fork():
+ time.sleep(2)
+ os.kill(pid, signal.SIGHUP)
+ time.sleep(2)
+ os.kill(pid, signal.SIGHUP)
+ os._exit(0)
+ else:
+ try:
+ signal.sigsuspend(defaultmask)
+ except:
+ raise TestFailed, "sigsuspend erroneously raised"
+
+ try:
+ signal.sigsuspend(defaultmask)
+ except HupDelivered:
+ pass
+ else:
+ raise TestFailed, "sigsupsend didn't raise"
+