Fix __warn_unused_result__, add more of it and fix the resulting warnings.

[meshlink] / src / meshlink++.h

diff --git a/src/meshlink++.h b/src/meshlink++.h
index f5921363e0dffa550a5a38065bc8eaafc703829f..980e5b12c5d4591da998015105c5ee4bb6dae5cd 100644 (file)
--- a/src/meshlink++.h
+++ b/src/meshlink++.h
@@ -664,11 +664,26 @@ public:
         *  and will not send data to it nor accept any data received from it any more.
         *
         *  @param node         A pointer to a meshlink::node describing the node to be blacklisted.
+        *
+        *  @return             This function returns true if the node has been whitelisted, false otherwise.
         */
-       void blacklist(node *node) {
+       bool blacklist(node *node) {
                return meshlink_blacklist(handle, node);
        }
 
+       /// Whitelist a node on the mesh.
+       /** This function causes the local node to whitelist another node.
+        *  The local node will allow connections to and from that node,
+        *  and will send data to it and accept any data received from it.
+        *
+        *  @param node         A pointer to a meshlink::node describing the node to be whitelisted.
+        *
+        *  @return             This function returns true if the node has been whitelisted, false otherwise.
+        */
+       bool whitelist(node *node) {
+               return meshlink_whitelist(handle, node);
+       }
+
        /// Set the poll callback.
        /** This functions sets the callback that is called whenever data can be sent to another node.
         *  The callback is run in MeshLink's own thread.
@@ -732,6 +747,7 @@ public:
         *  @param cb           A pointer to the function which will be called when the remote node sends data to the local node.
         *  @param data         A pointer to a buffer containing data to already queue for sending.
         *  @param len          The length of the data.
+        *                      If len is 0, the data pointer is copied into the channel's priv member.
         *  @param flags        A bitwise-or'd combination of flags that set the semantics for this channel.
         *
         *  @return             A handle for the channel, or NULL in case of an error.
@@ -756,6 +772,7 @@ public:
         *  @param port         The port number the peer wishes to connect to.
         *  @param data         A pointer to a buffer containing data to already queue for sending.
         *  @param len          The length of the data.
+        *                      If len is 0, the data pointer is copied into the channel's priv member.
         *  @param flags        A bitwise-or'd combination of flags that set the semantics for this channel.
         *
         *  @return             A handle for the channel, or NULL in case of an error.