libssh2_session_set_timeout (3) Linux Manual Page
libssh2_session_set_timeout – set timeout for blocking functions
Synopsis
#include <libssh2.h>void libssh2_session_set_timeout(LIBSSH2_SESSION *session, long timeout);
Description
Set the timeout in milliseconds for how long a blocking the libssh2 function calls may wait until they consider the situation an error and return LIBSSH2_ERROR_TIMEOUT. By default or if you set the timeout to zero, libssh2 has no timeout for blocking functions.