On Wed, Feb 12, 2014 at 4:10 AM, xingzhiming <xingzhim...@gmail.com> wrote: > > hi,all > When using multiple threads, in libssh2_session_handshake abnormal. > If you do not multi-threaded, no problem. How to use multi-thread calls > libssh2? >
I had a similar problem. Perhaps my solution can you help as well. If I created a session I got the error: Unable to exchange encryption keys I enabled verbose logging and did run the application with truss (similar to strace on Linux) on Solaris. /13: recv(11, 0xFFFFFD7FFBA05B17, 1, 0) Err#11 EAGAIN _libssh2_recv: rc=-1 errno=125 [libssh2] 0.758411 Socket: Error recving 1 bytes: 125 On the first line above a recv() system call returned with -1 and errno was 11 (EAGAIN). But on the second and third line errno was 125. The second line is a debug output which I added to the source directly after the recv() statement. The source of the problem was that I didn't compile libssh2 with correct compiler flags for multi-threading. If you do not pay attention on Solaris then errno is a global variable. Using gcc compiler you can add "-pthread" as compile and link flag to enable thread local storage of errno. Using -D_REENTRANT on Solaris as compile flag also works. My configure call is now is e.g. CFLAGS="-m64 -pthread" LDFLAGS="-m64 -pthread" ./configure --with-openssl --with-libssl-prefix=$HOME/local --with-libz --with-libz-prefix=$HOME/local --prefix=$HOME/local _______________________________________________ libssh2-devel http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel
