[jira] [Updated] (PROTON-1165) qpid proton cpp binding posix/io.cpp tests wrong error condition

["Justin Ross (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PROTON-1165?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin Ross updated PROTON-1165:
--------------------------------
    Fix Version/s: 0.14.0

> qpid proton cpp binding posix/io.cpp tests wrong error condition
> ----------------------------------------------------------------
>
>                 Key: PROTON-1165
>                 URL: https://issues.apache.org/jira/browse/PROTON-1165
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: cpp-binding
>    Affects Versions: 0.12.0
>         Environment: linux/posix
>            Reporter: Roman Puls
>            Assignee: Cliff Jansen
>              Labels: patch
>             Fix For: 0.14.0
>
>
> posix/io.cpp:
> size_t socket_engine::io_write(const char *buf, size_t size) {
>     ssize_t n = ::write(socket_, buf, size);
>     if (n == EAGAIN || n == EWOULDBLOCK) return 0;
>     if (n < 0) check(n, "write: ");
>     return n;
> }
> instead of testing n against EAGAIN/EWOULDBLOCK, n needs to be tested against -1 and then errno needs to be compared to EAGAIN/EWOULDBLOCK
> proposed fix:
> size_t socket_engine::io_write(const char *buf, size_t size) {
>     ssize_t n = ::write(socket_, buf, size);
>     if (n < 0) {
>         if (errno == EAGAIN || errno == EWOULDBLOCK) {
>             return 0;
>         }
>         check(n, "write: ");
>     }
>     return n;
> }



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