Add third_party/pexpect

third_party/pexpect/tests/sigwinch_report.py

+'''
+PEXPECT LICENSE
+
+    This license is approved by the OSI and FSF as GPL-compatible.
+        http://opensource.org/licenses/isc-license.txt
+
+    Copyright (c) 2012, Noah Spurrier <noah@noah.org>
+    PERMISSION TO USE, COPY, MODIFY, AND/OR DISTRIBUTE THIS SOFTWARE FOR ANY
+    PURPOSE WITH OR WITHOUT FEE IS HEREBY GRANTED, PROVIDED THAT THE ABOVE
+    COPYRIGHT NOTICE AND THIS PERMISSION NOTICE APPEAR IN ALL COPIES.
+    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+'''
+from  __future__ import print_function
+
+import signal, time, struct, fcntl, termios, sys
+
+def getwinsize():
+    '''This returns the window size of the child tty.
+    The return value is a tuple of (rows, cols).
+    '''
+    if 'TIOCGWINSZ' in dir(termios):
+        TIOCGWINSZ = termios.TIOCGWINSZ
+    else:
+        TIOCGWINSZ = 1074295912 # Assume
+    s = struct.pack('HHHH', 0, 0, 0, 0)
+    x = fcntl.ioctl(sys.stdout.fileno(), TIOCGWINSZ, s)
+    return struct.unpack('HHHH', x)[0:2]
+
+def handler(signum, frame):
+    print('signal')
+    sys.stdout.flush()
+    print('SIGWINCH:', getwinsize ())
+    sys.stdout.flush()
+
+print("Initial Size:", getwinsize())
+print("setting handler for SIGWINCH")
+signal.signal(signal.SIGWINCH, handler)
+print("READY")
+
+while 1:
+    sys.stdout.flush()
+    time.sleep(1)
+