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# $Id: systemfuncs.py 11565 2010-06-30 18:17:37Z m9710797 $
class SystemFunction(object):
name = None
@classmethod
def getFunctionName(cls):
return cls.name
@classmethod
def getMakeName(cls):
return cls.name.upper()
@classmethod
def iterHeaders(cls, targetPlatform):
raise NotImplementedError
class FTruncateFunction(SystemFunction):
name = 'ftruncate'
@classmethod
def iterHeaders(cls, targetPlatform):
yield '<unistd.h>'
class ClockGetTimeFunction(SystemFunction):
name = 'clock_gettime'
@classmethod
def iterHeaders(cls, targetPlatform):
yield '<time.h>'
class MMapFunction(SystemFunction):
name = 'mmap'
@classmethod
def iterHeaders(cls, targetPlatform):
if targetPlatform in ('darwin', 'openbsd'):
yield '<sys/types.h>'
yield '<sys/mman.h>'
class PosixMemAlignFunction(SystemFunction):
name = 'posix_memalign'
@classmethod
def iterHeaders(cls, targetPlatform):
yield '<stdlib.h>'
class USleepFunction(SystemFunction):
name = 'usleep'
@classmethod
def iterHeaders(cls, targetPlatform):
yield '<unistd.h>'
# Build a list of system functions using introspection.
def _discoverSystemFunctions(localObjects):
for obj in localObjects:
if isinstance(obj, type) and issubclass(obj, SystemFunction):
if obj is not SystemFunction:
yield obj
systemFunctions = list(_discoverSystemFunctions(locals().itervalues()))
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