lib-http: Added debug logging.

diff --git a/src/lib-http/http-client-queue.c b/src/lib-http/http-client-queue.c
index d2e0637bf02fd649a96420148d3d0baff6dfd857..12439101500a2c8e7d2b609b5bdf6c1a79aca5fe 100644 (file)
--- a/src/lib-http/http-client-queue.c
+++ b/src/lib-http/http-client-queue.c
@@ -286,6 +286,14 @@ http_client_queue_connection_failure(struct http_client_queue *queue,
 {
        struct http_client_host *host = queue->host;
 
+       http_client_queue_debug(queue, "Failed to set up connection to %s%s: %s "
+               "(%u peers pending, %u requests pending)",
+               http_client_peer_addr2str(addr),
+               (addr->https_name == NULL ? "" :
+                       t_strdup_printf(" (SSL=%s)", addr->https_name)), reason,
+               (array_is_created(&queue->pending_peers) ?
+                       array_count(&queue->pending_peers): 0),
+               array_count(&queue->request_queue));
        if (array_is_created(&queue->pending_peers) &&
                array_count(&queue->pending_peers) > 0) {
                struct http_client_peer *const *peer_idx;
@@ -301,8 +309,11 @@ http_client_queue_connection_failure(struct http_client_queue *queue,
                                break;
                        }
                }
-               if (array_count(&queue->pending_peers) > 0)
+               if (array_count(&queue->pending_peers) > 0) {
+                       http_client_queue_debug(queue,
+                               "Waiting for remaining pending peers.");
                        return TRUE;
+               }
        }
 
        /* one of the connections failed. if we're not using soft timeouts,
@@ -312,6 +323,9 @@ http_client_queue_connection_failure(struct http_client_queue *queue,
                timeout_remove(&queue->to_connect);
 
        if (http_client_queue_is_last_connect_ip(queue)) {
+               http_client_queue_debug(queue,
+                       "Failed to set up any connection; failing all queued requests");
+
                /* all IPs failed, but retry all of them again on the
                   next request. */
                queue->ips_connect_idx = queue->ips_connect_start_idx =