from jpype import *
import time

remote_pack="c:/tools/netbeean-remote-pack"

profiler_options = [
    "-agentpath:%s/lib/deployed/jdk15/windows/profilerinterface.dll=%s/lib,5140" % (remote_pack, remote_pack)
]


options = [
    #'-verbose:gc', 
    '-Xmx64m', 
    '-Djava.class.path=classes'
] #+ profiler_options

cnt = 0

#setUsePythonThreadForDeamon(True)
startJVM(getDefaultJVMPath(), *options)

class MyStr(str):
    def __init__ (self, val):
        str.__init__(self, val)
        global cnt
        cnt += 1
        print 'created string', cnt
    
    def __del__(self):
        global cnt
        cnt -= 1
        print 'deleted string', cnt
    
receive = JClass("jpype.nio.NioReceive")
        
while True:
    # everything runs great with this line uncommented
    #p = JString('5' * 1024 * 1024)
    
    # with this line uncommented, the python strings aren't GC'd
    p = java.lang.StringBuffer(MyStr('5' * 1024 * 1024))
    
    # with this line uncommented, the JVM throws an OutOfMemoryError (not GC'ing the proxied java objects?),
    # but the python strings are being GC'd
    #p = java.lang.StringBuffer(JString(MyStr('5' * 1024 * 1024)))
    
    #
    # forget the direct buffer for now....
    #
    buf = nio.convertToDirectBuffer(MyStr('5' * 1024 * 1024 * 5))
    try :
        receive.receiveBufferWithException(buf)
    except :
        pass
