[android-developers] InetAdress bug or documentation ambiguity or some other explanation?
I am stumped. InetAdress.isReachable simply does not work. By that I mean, it always returns false for an external host. I have tried searching the internet to see if anybody else is having the same problem, I have found a few people have had the same problem, but cannot really find an explanation why. I have tried this on multiple devices with the same result. boolean blnResult = InetAddress.getByName(localhost).isReachable(2); The above line of code works every time. If I change the localhost to an external host that I can verify isReachable, the result is always false. blnResult = InetAddress.getByName(www.google.com).isReachable(2); blnResult = InetAddress.getByName(4.2.2.2).isReachable(2); The above lines always return false, even though I can use a terminal emulator on the same device and get a true result. Can somebody more experienced with Android or perhaps a Google engineer please give a plausible explanation for this. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: InetAdress bug or documentation ambiguity or some other explanation?
Thank you for the replies. Perhaps I should give a little background on this phenomena. A few years ago I created a free server monitor. The monitor has always had ping checks, port checks, and http(s) checks. I was doing ping checks via the isReachable method. I have never had issues with the isReachable method until recently. By recently I mean late last summer, I began getting more and more complaints from users that ping is not working. I usually gave the canned response to ping not working because the ping portion of the application had been stable and working for about a year and a half. Now, as it turns out, I cannot get it to work. I am thinking I need to remove the Ping feature from my application. However, the backlash from users when a feature is removed is usually quick and severe. Even though the application is free I really want this to be a last resort. Is there an alternative to isReachable? On Dec 27, 11:54 am, Mark Murphy mmur...@commonsware.com wrote: On Mon, Dec 27, 2010 at 12:46 PM, bc clarkbrianc...@gmail.com wrote: I am stumped. InetAdress.isReachable simply does not work. By that I mean, it always returns false for an external host. I have tried searching the internet to see if anybody else is having the same problem, I have found a few people have had the same problem, but cannot really find an explanation why. I have tried this on multiple devices with the same result. boolean blnResult = InetAddress.getByName(localhost).isReachable(2); The above line of code works every time. If I change the localhost to an external host that I can verify isReachable, the result is always false. blnResult = InetAddress.getByName(www.google.com).isReachable(2); blnResult = InetAddress.getByName(4.2.2.2).isReachable(2); The above lines always return false, even though I can use a terminal emulator on the same device and get a true result. Can somebody more experienced with Android or perhaps a Google engineer please give a plausible explanation for this. http://stackoverflow.com/questions/2935325/android-debugging-inetaddr... isReachable() attempts to connect to port 7, which may be eaten by firewalls. This is a legacy holdover from Java -- I would recommend trying to do something more meaningful, like an HTTP GET request on a known good URL if you are trying to see if a Web service is reachable. -- Mark Murphy (a Commons Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy Warescription: Three Android Books, Plus Updates, One Low Price! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] InetAddress.isReachable
Has anybody else had any problems using isReachable? boolean _blnStatus = InetAddress.getByName(localhost).isReachable(55000); I have tried unreasonable timeouts (55000 ms) and it never works? When I use localhost it returns true almost instantly. If I try an external host (one I know that is working) it always returns false after the timeout. I have verified this issue on the emulator, HTC G1 (ADP1) running 1.6, and an HTC Incredible running 2.2 update 1. I have tried both SDK r06 and r08. I am completely stumped. This has always worked in the past. Only recently have I noticed this no longer works. Has something changed in the API? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] How to get phyaddr from MemoryHeapPmem??
hi, i add pmem and pmem_adsp to my kernel,and mydroid is working fine.but i can only get virtaddr from MemoryHeapPmem(use getBase()),i can not get phyaddr,but the pmem driver can use PMEM_GET_PHYS to get phyaddr,so ,i must modify MemoryHeapPmem,add a method like getPhyAddr () ?is here other way? thanks. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: native C++ SIP stack on Android
i port a sip stack,and use jni,it can work now,but,how can i let phone use the stack,just like gsm? On Jan 9, 1:08 am, David Turner di...@android.com wrote: first, you cannot have C++ code in the kernel. however, depending on how your stack is designed, you may be able to use it from Java through JNI given that you give absolutely no information about your stack's interface, it's really difficult to answer your question On Thu, Jan 8, 2009 at 5:57 PM, pinguin e...@vinacom.de wrote: Can i port SIP stack written in C++ to android and let it running as service in kernel ? and the GUI will communicate with SIP stack through JNI ? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] sip ua in android
i port a sip ua(osip) for android,it can work in android,but,how can i warp this as a part of android phone,jast like gsm? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
