def find_library(name):
# this fallback is good enough ;-)
try:
library = NativeLibrary.getInstance(name)
except UnsatisfiedLinkError:
return None
return library.file.path
try:
# jip install net.java.dev.jna:jna:X.Y.Z --> javalib/jna*.jar
# java -jar ivy.jar -dependency net.java.dev.jna jna '[X.Y,)' -types jar -retrieve 'javalib/[artifact]-[revision](-[classifier]).[ext]'
sys.path.extend(glob.glob('javalib/jna*.jar'))
from com.sun.jna import NativeLibrary
except Exception as exc:
raise Exception(
'Possibly missing javalib/jna*.jar -- check javalib directory.\n' +
repr(exc))
__all__ = ['fact_i', 'fact_lp', 'expt_i', 'expt_lp']
MODULE_LOGGER = logging.getLogger(__name__)
ffi_jna = NativeLibrary.getInstance('intro_c-practice')
_fact_i = ffi_jna.getFunction('fact_i')
_fact_lp = ffi_jna.getFunction('fact_lp')
_expt_i = ffi_jna.getFunction('expt_i')
_expt_lp = ffi_jna.getFunction('expt_lp')
def fact_i(num):
func_name = inspect.stack()[0][3]
MODULE_LOGGER.info(func_name + '()')
return _fact_i.invoke(JLong, jarray.array([num], JLong))
def fact_lp(num):
def __init__(self, libname):
self._lib = NativeLibrary.getInstance(libname)
