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[paraslash.git] / sync_filter.c

diff --git a/sync_filter.c b/sync_filter.c
index 6a2a09462f9b1d452c8c997ac04dbfaba1f30521..82e86e90cf50c4bf77faac44183286c536caab26 100644 (file)
--- a/sync_filter.c
+++ b/sync_filter.c
@@ -34,7 +34,7 @@ struct sync_buddy_info {
        bool disabled;
 };
 
-/* per open/close data */
+/* One active buddy */
 struct sync_buddy {
        int fd;
        struct sync_buddy_info *sbi;
@@ -42,6 +42,7 @@ struct sync_buddy {
        struct list_head node;
 };
 
+/* Allocated in ->open() */
 struct sync_filter_context {
        int listen_fd;
        struct list_head buddies;
@@ -49,6 +50,7 @@ struct sync_filter_context {
        bool ping_sent;
 };
 
+/* Allocated and freed in ->parse_config() and ->free_config(). */
 struct sync_filter_config {
        struct sync_filter_args_info *conf;
        struct sync_buddy_info *buddy_info;
@@ -169,6 +171,13 @@ fail:
        }
 }
 
+/*
+ * At parse config time, we build an array of struct sync_buddy_info with one
+ * entry for each buddy given in the arguments. This array is not affected by
+ * sync_close(), so information stored there can be used for multiple instances
+ * (para_audiod). We store the resolved url and the ->disabled bit in this
+ * array.
+ */
 static int sync_parse_config(int argc, char **argv, void **result)
 {
        int i, ret, n;
@@ -221,7 +230,7 @@ fail:
 }
 
 /*
- * True if we sent a packet to all budies and received a packet from each
+ * True if we sent a packet to all buddies and received a packet from each
  * enabled buddy.
  */
 static bool sync_complete(struct sync_filter_context *ctx)
@@ -368,7 +377,7 @@ static int sync_post_select(__a_unused struct sched *s, void *context)
                return 1;
        /*
         * Although all enabled buddies are in sync we do not splice out
-        * ourselves immediately. We rather wait until the timout expires,
+        * ourselves immediately. We rather wait until the timeout expires,
         * or the buddy list has become empty. This opens a time window
         * for disabled buddies to become enabled by sending us a packet.
         */