From: Tim Peters <tim.peters@gmail.com>
Date: Mon, 1 Oct 2001 17:58:40 +0000 (+0000)
Subject: SF patch [#466877] SIGBREAK is missing from signal module.
X-Git-Tag: v2.2.1c1~1507
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1ce3cf774968ea4b8cf21058eea5d4baee0b5349;p=python

SF patch [#466877] SIGBREAK is missing from signal module.
Patch from Steve Scott to add SIGBREAK support (unique to Windows).
---

diff --git a/Misc/ACKS b/Misc/ACKS
index 753aa734a4..19bcf2ce76 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -362,6 +362,7 @@ Peter Schneider-Kamp
 Sam Schulenburg
 Dietmar Schwertberger
 Barry Scott
+Steven Scott
 Nick Seidenman
 Fred Sells
 Denis Severson
diff --git a/Misc/NEWS b/Misc/NEWS
index b7ccc862ca..662bd69cdd 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -31,6 +31,26 @@ Tests
 
 Windows
 
+- The signal module now supports SIGBREAK on Windows, thanks to Steven
+  Scott.  Note that SIGBREAK is unique to Windows.  The default SIGBREAK
+  action remains to call Win32 ExitProcess().  This can be changed via
+  signal.signal().  For example:
+
+  # Make Ctrl+Break raise KeyboardInterrupt, like Python's default Ctrl+C
+  # (SIGINT) behavior.
+  import signal
+  signal.signal(signal.SIGBREAK,
+                signal.default_int_handler)
+
+  try:
+      while 1:
+          pass
+  except KeyboardInterrupt:
+      # We get here on Ctrl+C or Ctrl+Break now; if we had not changed
+      # SIGBREAK, only on Ctrl+C (and Ctrl+Break would terminate the
+      # program without the possibility for any Python-level cleanup).
+      print "Clean exit"
+
 
 What's New in Python 2.2a4?
 Release date: 28-Sep-2001
diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c
index 340445fc59..850221ea32 100644
--- a/Modules/signalmodule.c
+++ b/Modules/signalmodule.c
@@ -383,6 +383,11 @@ initsignal(void)
 	PyDict_SetItemString(d, "SIGINT", x);
         Py_XDECREF(x);
 #endif
+#ifdef SIGBREAK
+	x = PyInt_FromLong(SIGBREAK);
+	PyDict_SetItemString(d, "SIGBREAK", x);
+        Py_XDECREF(x);
+#endif
 #ifdef SIGQUIT
 	x = PyInt_FromLong(SIGQUIT);
 	PyDict_SetItemString(d, "SIGQUIT", x);