Add comments to start(); resolves QPID-1899

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@886036 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 17 insertions, 1 deletions

diff --git a/cpp/src/qpid/client/Sasl.h b/cpp/src/qpid/client/Sasl.h
index fcc8c1f1c6..63da37fcb1 100644
--- a/cpp/src/qpid/client/Sasl.h
+++ b/cpp/src/qpid/client/Sasl.h
@@ -37,11 +37,27 @@ namespace client {
 struct ConnectionSettings;
 
 /**
- * Interface to SASL support
+ * Interface to SASL support. This class is implemented by platform-specific
+ * SASL providers.
  */
 class Sasl
 {
   public:
+    /**
+     * Start SASL negotiation with the broker.
+     *
+     * @param mechanisms Comma-separated list of the SASL mechanism the
+     *             client supports.
+     * @param ssf  Security Strength Factor (SSF). SSF is used to negotiate
+     *             a SASL security layer on top of the connection should both
+     *             parties require and support it. The value indicates the
+     *             required level of security for communication. Possible
+     *             values are:
+     *             @li 0  No security
+     *             @li 1  Integrity checking only
+     *             @li >1 Integrity and confidentiality with the number
+     *                    giving the encryption key length.
+     */
     virtual std::string start(const std::string& mechanisms, unsigned int ssf) = 0;
     virtual std::string step(const std::string& challenge) = 0;
     virtual std::string getMechanism() = 0;