Alfred, (@ALL: sorry to hitchhike this thread)
in your configure call you use --with-XXX-prefix - this never worked for me, neither in the stable nor the development versions of libssh2 on AIX, Solaris and Linux. Have you checked that the compiled libssh2.so was actually linked to the shlibs in $HOME/...? I still suspect that --with-XXX-prefix does not work in libssh2. The build process always used the standard libs located in /usr/lib (or /usr/lib64 etc.) regardless of the settings of --with-XXX-prefix. If you find the same we may get on to find and fix it (or file a bug report for the configure experts). Thanks! Mit freundlichen Gruessen / best regards Michael Kwasigroch Development _______________________________________________________________ Office number: +49 40 514 52-175 Office fax: +49 40 514 52-100 Email: mkwas...@intercope.com www.intercope.com From: Alfred Gebert <alfred.geb...@gmail.com> To: libssh2 development <libssh2-devel@cool.haxx.se> Date: 13.02.2014 09:16 Subject: Re: multithread calls libssh2_session_handshake,error,return -13 Sent by: "libssh2-devel" <libssh2-devel-boun...@cool.haxx.se> 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 ________________________________________________________________ INTERCOPE International Communication Products Engineering GmbH Himmelstrasse 12-16, 22299 Hamburg, Germany Managing Directors: Reinhart Laumer, Frank Kollender Commercial Registry: Amtsgericht Hamburg, HRB 31 638 ________________________________________________________________ This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail ist nicht gestattet. ________________________________________________________________
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