49 lines
1.4 KiB
Python
49 lines
1.4 KiB
Python
import os
|
|
import resource
|
|
|
|
from test_support import TESTFN
|
|
|
|
# This test is checking a few specific problem spots. RLIMIT_FSIZE
|
|
# should be RLIM_INFINITY, which will be a really big number on a
|
|
# platform with large file support. On these platforms, we need to
|
|
# test that the get/setrlimit functions properly convert the number to
|
|
# a C long long and that the conversion doesn't raise an error.
|
|
|
|
try:
|
|
cur, max = resource.getrlimit(resource.RLIMIT_FSIZE)
|
|
except AttributeError:
|
|
pass
|
|
else:
|
|
print resource.RLIM_INFINITY == max
|
|
resource.setrlimit(resource.RLIMIT_FSIZE, (cur, max))
|
|
|
|
# Now check to see what happens when the RLIMIT_FSIZE is small. Some
|
|
# versions of Python were terminated by an uncaught SIGXFSZ, but
|
|
# pythonrun.c has been fixed to ignore that exception. If so, the
|
|
# write() should return EFBIG when the limit is exceeded.
|
|
|
|
try:
|
|
resource.setrlimit(resource.RLIMIT_FSIZE, (1024, max))
|
|
f = open(TESTFN, "wb")
|
|
f.write("X" * 1024)
|
|
try:
|
|
f.write("Y")
|
|
f.flush()
|
|
except IOError:
|
|
pass
|
|
f.close()
|
|
os.unlink(TESTFN)
|
|
finally:
|
|
resource.setrlimit(resource.RLIMIT_FSIZE, (cur, max))
|
|
|
|
# And be sure that setrlimit is checking for really large values
|
|
too_big = 10L**50
|
|
try:
|
|
resource.setrlimit(resource.RLIMIT_FSIZE, (too_big, max))
|
|
except OverflowError:
|
|
pass
|
|
try:
|
|
resource.setrlimit(resource.RLIMIT_FSIZE, (max, too_big))
|
|
except OverflowError:
|
|
pass
|