"Shawn O. Pearce" <spea...@spearce.org> writes:
> Lets assume the site operators (Hi Google!) have a clue and are
> doing everything they already can to ensure secure, successful
> SSL connections from a wide range of HTTP clients. Implementing a
> single level of retry in the client can make it more robust against
> transient failure modes.
> ---
Sign off?
> http.c | 19 ++++++++++++-------
> remote-curl.c | 2 ++
> 2 files changed, 14 insertions(+), 7 deletions(-)
>
> diff --git a/http.c b/http.c
> index 345c171..953f2e6 100644
> --- a/http.c
> +++ b/http.c
> @@ -784,7 +784,7 @@ static int http_request(const char *url, void *result,
> int target, int options)
> struct slot_results results;
> struct curl_slist *headers = NULL;
> struct strbuf buf = STRBUF_INIT;
> - int ret;
> + int ret, attempts;
>
> slot = get_active_slot();
> slot->results = &results;
> @@ -820,12 +820,17 @@ static int http_request(const char *url, void *result,
> int target, int options)
> curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
> curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip");
>
> - if (start_active_slot(slot)) {
> - run_active_slot(slot);
> - ret = handle_curl_result(slot);
> - } else {
> - error("Unable to start HTTP request for %s", url);
> - ret = HTTP_START_FAILED;
> + for (attempts = 0; attempts < 2; attempts++) {
> + if (start_active_slot(slot)) {
> + run_active_slot(slot);
> + if (slot->results->curl_result ==
> CURLE_SSL_CONNECT_ERROR)
> + continue;
> + ret = handle_curl_result(slot);
> + } else {
> + error("Unable to start HTTP request for %s", url);
> + ret = HTTP_START_FAILED;
> + }
> + break;
> }
Two naïve questions, that applies to this and the one in
remote-curl.c::run_slot().
(1) why only twice?
(2) no need for "wait a bit and then retry"?
> diff --git a/remote-curl.c b/remote-curl.c
> index a269608..04a379c 100644
> --- a/remote-curl.c
> +++ b/remote-curl.c
> @@ -353,6 +353,8 @@ static int run_slot(struct active_request_slot *slot)
>
> slot->results = &results;
> slot->curl_result = curl_easy_perform(slot->curl);
> + if (slot->curl_result == CURLE_SSL_CONNECT_ERROR)
> + slot->curl_result = curl_easy_perform(slot->curl);
> finish_active_slot(slot);
>
> err = handle_curl_result(slot);
--
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