cdef extern from "darwin_memory_usage.h":
cdef unsigned long long darwin_virtual_size()
def darwin_memory_usage():
r"""
On Darwin >= 9 (i.e. OS X >= 10.5), returns the virtual size of the process in bytes.
This will match what "top" reports as the VSIZE.
Raises on all other platforms
EXAMPLES
sage: uname = os.uname()
sage: if uname[0] == 'Darwin' and not uname[2].startswith('8.'):
... from sage.misc.darwin_utilities import darwin_memory_usage
... memory_usage = darwin_memory_usage()
sage: uname = os.uname()
sage: if uname[0] == 'Darwin' and uname[2].startswith('8.'):
... try:
... from sage.misc.darwin_utilities import darwin_memory_usage
... memory_usage = darwin_memory_usage()
... print "doctest failure!"
... print "darwin_memory_usage() not implemented on platform Darwin 8 (i.e. OS X 10.4)"
... except ImportError:
... pass
sage: uname = os.uname()
sage: if uname[0] != 'Darwin':
... try:
... from sage.misc.darwin_utilities import darwin_memory_usage
... memory_usage = darwin_memory_usage()
... print "doctest failure!"
... print "darwin_memory_usage() not implemented on platform %s"%uname[0]
... except ImportError:
... pass
"""
return darwin_virtual_size()
