def test_memory_maps(self):
src = textwrap.dedent("""
import time
with open("%s", "w") as f:
time.sleep(10)
""" % TESTFN)
sproc = pyrun(src)
self.addCleanup(reap_children)
call_until(lambda: os.listdir('.'), "'%s' not in ret" % TESTFN)
p = psutil.Process(sproc.pid)
time.sleep(.1)
maps = p.memory_maps(grouped=False)
pmap = sh('pmap -x %s' % p.pid).split('\n')
# get rid of header
del pmap[0]
del pmap[0]
while maps and pmap:
this = maps.pop(0)
other = pmap.pop(0)
addr, _, rss, dirty, mode, path = other.split(None, 5)
if not path.startswith('[') and not path.endswith(']'):
self.assertEqual(path, os.path.basename(this.path))
self.assertEqual(int(rss) * 1024, this.rss)
# test only rwx chars, ignore 's' and 'p'
self.assertEqual(mode[:3], this.perms[:3])
def test_memory_addrspace_info(self):
src = textwrap.dedent("""
import time
with open("%s", "w") as f:
time.sleep(10)
""" % TESTFN)
sproc = pyrun(src)
self.addCleanup(reap_children)
call_until(lambda: os.listdir('.'), "'%s' not in ret" % TESTFN)
p = psutil.Process(sproc.pid)
time.sleep(.1)
mem = p.memory_addrspace_info()
maps = p.memory_maps(grouped=False)
self.assertEqual(
mem.uss, sum([x.private_dirty + x.private_clean for x in maps]))
self.assertEqual(mem.pss, sum([x.pss for x in maps]))
self.assertEqual(mem.swap, sum([x.swap for x in maps]))
def test_proc_open_files_file_gone(self):
# simulates a file which gets deleted during open_files()
# execution
p = psutil.Process()
files = p.open_files()
with tempfile.NamedTemporaryFile():
# give the kernel some time to see the new file
call_until(p.open_files, "len(ret) != %i" % len(files))
with mock.patch('psutil._pslinux.os.readlink',
side_effect=OSError(errno.ENOENT, "")) as m:
files = p.open_files()
assert not files
assert m.called
# also simulate the case where os.readlink() returns EINVAL
# in which case psutil is supposed to 'continue'
with mock.patch('psutil._pslinux.os.readlink',
side_effect=OSError(errno.EINVAL, "")) as m:
self.assertEqual(p.open_files(), [])
assert m.called
def test_proc_open_files_file_gone(self):
# simulates a file which gets deleted during open_files()
# execution
p = psutil.Process()
files = p.open_files()
with tempfile.NamedTemporaryFile():
# give the kernel some time to see the new file
call_until(p.open_files, "len(ret) != %i" % len(files))
with mock.patch('psutil._pslinux.os.readlink',
side_effect=OSError(errno.ENOENT, "")) as m:
files = p.open_files()
assert not files
assert m.called
# also simulate the case where os.readlink() returns EINVAL
# in which case psutil is supposed to 'continue'
with mock.patch('psutil._pslinux.os.readlink',
side_effect=OSError(errno.EINVAL, "")) as m:
self.assertEqual(p.open_files(), [])
assert m.called