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Python bindings for fswait/fswait2

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This commit is contained in:
Kevin Lange 2017-01-14 12:43:43 +09:00
parent 4f4ea53a7f
commit b7f60c0de9
1 changed files with 20 additions and 0 deletions
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userspace/py/lib/fswait.py Normal file
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import ctypes
_lib = None
if not _lib:
_lib = ctypes.CDLL('libc.so')
_lib.syscall_fswait.argtypes = [ctypes.c_int,ctypes.POINTER(ctypes.c_int)]
_lib.syscall_fswait.restype = ctypes.c_int
_lib.syscall_fswait2.argtypes = [ctypes.c_int,ctypes.POINTER(ctypes.c_int),ctypes.c_int]
_lib.syscall_fswait2.restype = ctypes.c_int
def fswait(files,timeout=None):
fds = (ctypes.c_int * len(files))()
for i in range(len(files)):
fds[i] = files[i].fileno()
if timeout is None:
return _lib.syscall_fswait(len(fds),fds)
else:
return _lib.syscall_fswait2(len(fds),fds,timeout)