android can not recieve message

[shiliupingGitHub]

I make a dll for unity3d , It works fine on windows , But Not ok on android . the url is "wss://xxxx:“。 ” ， I track the code, final I get the error in the "IXNetSystem.cpp" ::poll(fds, nfds, timeout); the function always return -1 and the errorno is alaways 4. how can I fixed , forgive my pool english

[shiliupingGitHub]

ndk version is 21b

[bsergean]

Given that you are on Android, you need to specify a cacert, I think that's your problem. Check this out https://machinezone.github.io/IXWebSocket/usage/#tls-support-and-configuration

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On Nov 16, 2020, at 6:06 AM, shiliupingGitHub ***@***.***> wrote: ndk version is 21b — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#251 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC2O6UPFOKJGFO4ILB3WYV3SQEWXJANCNFSM4TXAN7MA>.

[shiliupingGitHub]

I set cafile = NONE , It works well on windows. on android It looks like the function "poll" does not work. it always return -1. maybe ndk problem?

[shiliupingGitHub]

just work for the client side

[bsergean]

poll should work fine on Android as well, it was working with earlier version of ixwebsocket for sure. returning -1 is ok everyone in a while / have you printed the error messages ?

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On Nov 16, 2020, at 7:14 AM, shiliupingGitHub ***@***.***> wrote: I set cafile = NONE , It works well on windows. on android It looks like the function "poll" does not work. it always return -1. maybe ndk problem? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#251 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC2O6UI65XL2CX7ZEQ4WV6LSQE6W7ANCNFSM4TXAN7MA>.

[shiliupingGitHub]

yes , errorno value is 4, It means system call interrupt . I don't know why . I just guess it was ndk problem

[bsergean]

Ah that's interesting. Usually when the errno is this value, the function needs to be called again. I never ran into this before.

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On Nov 16, 2020, at 7:31 AM, shiliupingGitHub ***@***.***> wrote: yes , errorno value is 4, It means system call interrupt . I don't know why . I just guess it was ndk problem — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#251 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC2O6ULB6AJNUSBZOH4NB2DSQFAULANCNFSM4TXAN7MA>.

[shiliupingGitHub]

and also In your code , if the return value is -1, you will close the socket

[bsergean]

pytorch/pytorch#4220 <pytorch/pytorch#4220> Maybe we need to have a thin wrapper that re-run the function a couple of times (not sure how many times) like they do here if the return value is system call interrupt.

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On Nov 16, 2020, at 7:31 AM, shiliupingGitHub ***@***.***> wrote: yes , errorno value is 4, It means system call interrupt . I don't know why . I just guess it was ndk problem — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#251 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC2O6ULB6AJNUSBZOH4NB2DSQFAULANCNFSM4TXAN7MA>.

[shiliupingGitHub]

emm ,I makes a loop to wrap this , it looks like return -1 forever . so what version ndk have you tested before

[bsergean]

Can you try this ? $ git diff IXNetSystem.cpp diff --git a/ixwebsocket/IXNetSystem.cpp b/ixwebsocket/IXNetSystem.cpp index 195d129..02c9cd3 100644 --- a/ixwebsocket/IXNetSystem.cpp +++ b/ixwebsocket/IXNetSystem.cpp @@ -105,7 +105,15 @@ namespace ix return ret; #else - return ::poll(fds, nfds, timeout); + // We follow the style from libuv + int ret = -1; + do + { + ret = ::poll(fds, nfds, timeout); + } + while (ret == -1 && errno == EINTR) + + return ret; #endif }

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On Nov 16, 2020, at 7:31 AM, shiliupingGitHub ***@***.***> wrote: yes , errorno value is 4, It means system call interrupt . I don't know why . I just guess it was ndk problem — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#251 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC2O6ULB6AJNUSBZOH4NB2DSQFAULANCNFSM4TXAN7MA>.

[bsergean]

Hum I don't really remember, 19, 20 I believe.

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On Nov 16, 2020, at 7:31 AM, shiliupingGitHub ***@***.***> wrote: yes , errorno value is 4, It means system call interrupt . I don't know why . I just guess it was ndk problem — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#251 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC2O6ULB6AJNUSBZOH4NB2DSQFAULANCNFSM4TXAN7MA>.

[bsergean]

@tiwariashish86 would know better about ndk versions ... Hi Ashish !

[shiliupingGitHub]

emm . I will use another vesion ndk to test. thank you very much

[shiliupingGitHub]

int ret = -1;

•    do
  

•    {
  

•        ret = ::poll(fds, nfds, timeout);
  

•    }
  

•    while (ret == -1 && errno == EINTR)
  

•    return ret;
  

I have tested , this code solve my problem , thx

[bsergean]

Great. I have released that fix in the latest version of the library.

[bsergean]

v11.0.4