Merge branch 'ew/http-do-not-forget-to-call-curl-multi-remove-handle'
authorJunio C Hamano <gitster@pobox.com>
Wed, 21 Sep 2016 22:15:23 +0000 (15:15 -0700)
committerJunio C Hamano <gitster@pobox.com>
Wed, 21 Sep 2016 22:15:23 +0000 (15:15 -0700)
The http transport (with curl-multi option, which is the default
these days) failed to remove curl-easy handle from a curlm session,
which led to unnecessary API failures.

* ew/http-do-not-forget-to-call-curl-multi-remove-handle:
  http: always remove curl easy from curlm session on release
  http: consolidate #ifdefs for curl_multi_remove_handle
  http: warn on curl_multi_add_handle failures

http.c

diff --git a/http.c b/http.c
index edce47c..82ed542 100644 (file)
--- a/http.c
+++ b/http.c
@@ -201,6 +201,13 @@ static void finish_active_slot(struct active_request_slot *slot)
                slot->callback_func(slot->callback_data);
 }
 
+static void xmulti_remove_handle(struct active_request_slot *slot)
+{
+#ifdef USE_CURL_MULTI
+       curl_multi_remove_handle(curlm, slot->curl);
+#endif
+}
+
 #ifdef USE_CURL_MULTI
 static void process_curl_messages(void)
 {
@@ -216,7 +223,7 @@ static void process_curl_messages(void)
                               slot->curl != curl_message->easy_handle)
                                slot = slot->next;
                        if (slot != NULL) {
-                               curl_multi_remove_handle(curlm, slot->curl);
+                               xmulti_remove_handle(slot);
                                slot->curl_result = curl_result;
                                finish_active_slot(slot);
                        } else {
@@ -881,9 +888,7 @@ void http_cleanup(void)
        while (slot != NULL) {
                struct active_request_slot *next = slot->next;
                if (slot->curl != NULL) {
-#ifdef USE_CURL_MULTI
-                       curl_multi_remove_handle(curlm, slot->curl);
-#endif
+                       xmulti_remove_handle(slot);
                        curl_easy_cleanup(slot->curl);
                }
                free(slot);
@@ -1022,6 +1027,8 @@ int start_active_slot(struct active_request_slot *slot)
 
        if (curlm_result != CURLM_OK &&
            curlm_result != CURLM_CALL_MULTI_PERFORM) {
+               warning("curl_multi_add_handle failed: %s",
+                       curl_multi_strerror(curlm_result));
                active_requests--;
                slot->in_use = 0;
                return 0;
@@ -1161,13 +1168,13 @@ void run_active_slot(struct active_request_slot *slot)
 static void release_active_slot(struct active_request_slot *slot)
 {
        closedown_active_slot(slot);
-       if (slot->curl && curl_session_count > min_curl_sessions) {
-#ifdef USE_CURL_MULTI
-               curl_multi_remove_handle(curlm, slot->curl);
-#endif
-               curl_easy_cleanup(slot->curl);
-               slot->curl = NULL;
-               curl_session_count--;
+       if (slot->curl) {
+               xmulti_remove_handle(slot);
+               if (curl_session_count > min_curl_sessions) {
+                       curl_easy_cleanup(slot->curl);
+                       slot->curl = NULL;
+                       curl_session_count--;
+               }
        }
 #ifdef USE_CURL_MULTI
        fill_active_slots();