gisi: Add debugging hooks

diff --git a/gisi/client.c b/gisi/client.c
index 8f42565..06454c4 100644 (file)
--- a/gisi/client.c
+++ b/gisi/client.c
@@ -58,6 +58,10 @@ struct _GIsiClient {
                GIsiIndicationFunc func[256];
                void *data[256];
        } ind;
+
+       /* Debugging */
+       GIsiDebugFunc debug_func;
+       void *debug_data;
 };
 
 static gboolean g_isi_callback(GIOChannel *channel, GIOCondition cond,
@@ -136,6 +140,23 @@ uint8_t g_isi_client_resource(GIsiClient *client)
 }
 
 /**
+ * Set a debugging function for @a client. This function will be
+ * called whenever an ISI protocol message is sent or received.
+ * @param client client to debug
+ * @param func debug function
+ * @param opaque user data
+ */
+void g_isi_client_set_debug(GIsiClient *client, GIsiDebugFunc func,
+                               void *opaque)
+{
+       if (!client)
+               return;
+
+       client->debug_func = func;
+       client->debug_data = opaque;
+}
+
+/**
  * Destroys an ISI client, cancels all pending transactions and subscriptions.
  * @param client client to destroy
  */
@@ -202,6 +223,9 @@ GIsiRequest *g_isi_request_make(GIsiClient *cl,     const void *__restrict buf,
                return NULL;
        }
 
+       if (cl->debug_func)
+               cl->debug_func(buf, len, cl->debug_data);
+
        cl->func[id] = cb;
        cl->data[id] = opaque;
 
@@ -360,6 +384,10 @@ static gboolean g_isi_callback(GIOChannel *channel, GIOCondition cond,
                        return TRUE;
 
                msg = (uint8_t *)buf;
+
+               if (cl->debug_func)
+                       cl->debug_func(msg, len, cl->debug_data);
+
                if (indication) {
                        /* Message ID at offset 1 */
                        id = msg[1];

diff --git a/gisi/client.h b/gisi/client.h
index 8f9c7bf..448f9e5 100644 (file)
--- a/gisi/client.h
+++ b/gisi/client.h
@@ -46,10 +46,16 @@ typedef void (*GIsiIndicationFunc) (GIsiClient *client,
                const void *restrict data, size_t len,
                uint16_t object, void *opaque);
 
+typedef void (*GIsiDebugFunc) (const void *restrict data, size_t len,
+               void *opaque);
+
 GIsiClient *g_isi_client_create(GIsiModem *modem, uint8_t resource);
 
 uint8_t g_isi_client_resource(GIsiClient *client);
 
+void g_isi_client_set_debug(GIsiClient *client, GIsiDebugFunc func,
+                               void *opaque);
+
 void g_isi_client_destroy(GIsiClient *client);
 
 int g_isi_client_error(const GIsiClient *client);