added virtual destructors to base classes

and bumped version to 0.4

Signed-off-by: Michael Krelin <hacker@klever.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/opkele/consumer.h b/include/opkele/consumer.h
index b9d1e54..50ff692 100644
--- a/include/opkele/consumer.h
+++ b/include/opkele/consumer.h
@@ -1,56 +1,58 @@
 #ifndef __OPKELE_CONSUMER_H
 #define __OPKELE_CONSUMER_H
 
 #include <opkele/types.h>
 #include <opkele/extension.h>
 
 /**
  * @file
  * @brief OpenID consumer-side functionality
  */
 
 namespace opkele {
 
     /**
      * implementation of basic consumer functionality
      *
      * @note
      * The consumer uses libcurl internally, which means that if you're using
      * libopkele in multithreaded environment you should call curl_global_init
      * yourself before spawning any threads.
      */
     class consumer_t {
 	public:
 
+	    virtual ~consumer_t() { }
+
 	    /**
 	     * store association. The function should be overridden in the real
 	     * implementation to provide persistent associations store.
 	     * @param server the OpenID server
 	     * @param handle association handle
 	     * @param secret the secret associated with the server and handle
 	     * @param expires_in the number of seconds until the handle is expired
 	     * @return the auto_ptr<> for the newly allocated association_t object
 	     */
 	    virtual assoc_t store_assoc(const string& server,const string& handle,const secret_t& secret,int expires_in) = 0;
 	    /**
 	     * retrieve stored association. The function should be overridden
 	     * in the real implementation to provide persistent assocations
 	     * store.
 	     *
 	     * @note
 	     * The user is responsible for handling associations expiry and
 	     * this function should never return an expired or invalidated
 	     * association.
 	     *
 	     * @param server the OpenID server
 	     * @param handle association handle
 	     * @return the autho_ptr<> for the newly allocated association_t object
 	     * @throw failed_lookup if no unexpired association found
 	     */
 	    virtual assoc_t retrieve_assoc(const string& server,const string& handle) = 0;
 	    /**
 	     * invalidate stored association. The function should be overridden
 	     * in the real implementation of the consumer.
 	     * @param server the OpenID server
 	     * @param handle association handle
 	     */