def test_communicate_pipe_buf(self):
# communicate() with writes larger than pipe_buf
# This test will probably deadlock rather than fail, if
# communicate() does not work properly.
x, y = os.pipe()
if mswindows:
pipe_buf = 512
else:
pipe_buf = os.fpathconf(x, "PC_PIPE_BUF")
os.close(x)
os.close(y)
p = subprocess.Popen([sys.executable, "-c",
'import sys,os;'
'sys.stdout.write(sys.stdin.read(47));'
'sys.stderr.write("xyz"*%d);'
'sys.stdout.write(sys.stdin.read())' % pipe_buf],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
self.addCleanup(p.stdout.close)
self.addCleanup(p.stderr.close)
self.addCleanup(p.stdin.close)
string_to_write = b"abc"*pipe_buf
(stdout, stderr) = p.communicate(string_to_write)
self.assertEqual(stdout, string_to_write)
python类fpathconf()的实例源码
def test_communicate_pipe_buf(self):
# communicate() with writes larger than pipe_buf
# This test will probably deadlock rather than fail, if
# communicate() does not work properly.
x, y = os.pipe()
if mswindows:
pipe_buf = 512
else:
pipe_buf = os.fpathconf(x, "PC_PIPE_BUF")
os.close(x)
os.close(y)
p = subprocess.Popen([sys.executable, "-c",
'import sys,os;'
'sys.stdout.write(sys.stdin.read(47));'
'sys.stderr.write("xyz"*%d);'
'sys.stdout.write(sys.stdin.read())' % pipe_buf],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
self.addCleanup(p.stdout.close)
self.addCleanup(p.stderr.close)
self.addCleanup(p.stdin.close)
string_to_write = "abc"*pipe_buf
(stdout, stderr) = p.communicate(string_to_write)
self.assertEqual(stdout, string_to_write)
def test_communicate_pipe_buf(self):
# communicate() with writes larger than pipe_buf
# This test will probably deadlock rather than fail, if
# communicate() does not work properly.
x, y = os.pipe()
if mswindows:
pipe_buf = 512
else:
pipe_buf = os.fpathconf(x, "PC_PIPE_BUF")
os.close(x)
os.close(y)
p = subprocess.Popen([sys.executable, "-c",
'import sys,os;'
'sys.stdout.write(sys.stdin.read(47));'
'sys.stderr.write("xyz"*%d);'
'sys.stdout.write(sys.stdin.read())' % pipe_buf],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
self.addCleanup(p.stdout.close)
self.addCleanup(p.stderr.close)
self.addCleanup(p.stdin.close)
string_to_write = "abc"*pipe_buf
(stdout, stderr) = p.communicate(string_to_write)
self.assertEqual(stdout, string_to_write)
def test_communicate_pipe_buf(self):
# communicate() with writes larger than pipe_buf
# This test will probably deadlock rather than fail, if
# communicate() does not work properly.
x, y = os.pipe()
if mswindows:
pipe_buf = 512
else:
pipe_buf = os.fpathconf(x, "PC_PIPE_BUF")
os.close(x)
os.close(y)
p = subprocess.Popen([sys.executable, "-c",
'import sys,os;'
'sys.stdout.write(sys.stdin.read(47));'
'sys.stderr.write("xyz"*%d);'
'sys.stdout.write(sys.stdin.read())' % pipe_buf],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
self.addCleanup(p.stdout.close)
self.addCleanup(p.stderr.close)
self.addCleanup(p.stdin.close)
string_to_write = "abc"*pipe_buf
(stdout, stderr) = p.communicate(string_to_write)
self.assertEqual(stdout, string_to_write)
def test_communicate_pipe_buf(self):
# communicate() with writes larger than pipe_buf
# This test will probably deadlock rather than fail, if
# communicate() does not work properly.
x, y = os.pipe()
if mswindows:
pipe_buf = 512
else:
pipe_buf = os.fpathconf(x, "PC_PIPE_BUF")
os.close(x)
os.close(y)
p = subprocess.Popen([sys.executable, "-c",
'import sys,os;'
'sys.stdout.write(sys.stdin.read(47));'
'sys.stderr.write("xyz"*%d);'
'sys.stdout.write(sys.stdin.read())' % pipe_buf],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
self.addCleanup(p.stdout.close)
self.addCleanup(p.stderr.close)
self.addCleanup(p.stdin.close)
string_to_write = "abc"*pipe_buf
(stdout, stderr) = p.communicate(string_to_write)
self.assertEqual(stdout, string_to_write)
def test_fpathconf(self):
if hasattr(os, "fpathconf"):
self.check(os.fpathconf, "PC_NAME_MAX")
def test_fpathconf(self):
self.check(os.fpathconf, "PC_NAME_MAX")
def test_fpathconf(self):
self.check(os.fpathconf, "PC_NAME_MAX")
def test_fpathconf(self):
if hasattr(os, "fpathconf"):
self.check(os.pathconf, "PC_NAME_MAX")
self.check(os.fpathconf, "PC_NAME_MAX")
def test_fpathconf(self):
self.check(os.fpathconf, "PC_NAME_MAX")
def test_fpathconf(self):
self.check(os.pathconf, "PC_NAME_MAX")
self.check(os.fpathconf, "PC_NAME_MAX")
def test_fpathconf(self):
if hasattr(os, "fpathconf"):
self.check(os.fpathconf, "PC_NAME_MAX")
def test_fpathconf(self):
self.check(os.pathconf, "PC_NAME_MAX")
self.check(os.fpathconf, "PC_NAME_MAX")
