[jira] [Commented] (PROTON-787) thread safety issue -- openssl initialization
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https://issues.apache.org/jira/browse/PROTON-787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14256848#comment-14256848
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Bozo Dragojevic commented on PROTON-787:
from :
{quote}
* The messenger interface is single-threaded. All methods except one
* (::pn_messenger_interrupt()) are intended to be used by one thread
* at a time.
{quote}
> thread safety issue -- openssl initialization
> -
>
> Key: PROTON-787
> URL: https://issues.apache.org/jira/browse/PROTON-787
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-c
>Affects Versions: 0.8
> Environment: unix
>Reporter: Jim Spring
>Priority: Minor
>
> Doing multiple calls to pn_messenger_subscribe can potentially end up in
> simultaneous calls to pn_ssl_globals_init which calls into openssl which is
> not thread safe.
> One fix is to explicitly serialize calls (my current approach).
> One other fix - allow for an initial "proton_init" type call that includes
> openssl initialization. Which is called before usage of the library.
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[jira] [Commented] (PROTON-787) thread safety issue -- openssl initialization
[ https://issues.apache.org/jira/browse/PROTON-787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14255039#comment-14255039 ] Jim Spring commented on PROTON-787: --- Note - I have seen other simultaneous calls to pn_messenger_send/put result in similar behavior. > thread safety issue -- openssl initialization > - > > Key: PROTON-787 > URL: https://issues.apache.org/jira/browse/PROTON-787 > Project: Qpid Proton > Issue Type: Bug > Components: proton-c >Affects Versions: 0.8 > Environment: unix >Reporter: Jim Spring >Priority: Minor > > Doing multiple calls to pn_messenger_subscribe can potentially end up in > simultaneous calls to pn_ssl_globals_init which calls into openssl which is > not thread safe. > One fix is to explicitly serialize calls (my current approach). > One other fix - allow for an initial "proton_init" type call that includes > openssl initialization. Which is called before usage of the library. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
