http: avoid disconnecting on 404s for loose objects

404s are common when fetching loose objects on static HTTP
servers, and reestablishing a connection for every single
404 adds additional latency.

Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Eric Wong 2016-07-11 20:51:30 +00:00 committed by Junio C Hamano
parent 43b8bba6b6
commit 17966c0a63
2 changed files with 23 additions and 2 deletions

View File

@ -488,6 +488,15 @@ static int fetch_object(struct walker *walker, unsigned char *sha1)
req->localfile = -1;
}
/*
* we turned off CURLOPT_FAILONERROR to avoid losing a
* persistent connection and got CURLE_OK.
*/
if (req->http_code == 404 && req->curl_result == CURLE_OK &&
(starts_with(req->url, "http://") ||
starts_with(req->url, "https://")))
req->curl_result = CURLE_HTTP_RETURNED_ERROR;
if (obj_req->state == ABORTED) {
ret = error("Request for %s aborted", hex);
} else if (req->curl_result != CURLE_OK &&

16
http.c
View File

@ -1855,8 +1855,19 @@ static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb,
unsigned char expn[4096];
size_t size = eltsize * nmemb;
int posn = 0;
struct http_object_request *freq =
(struct http_object_request *)data;
struct http_object_request *freq = data;
struct active_request_slot *slot = freq->slot;
if (slot) {
CURLcode c = curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE,
&slot->http_code);
if (c != CURLE_OK)
die("BUG: curl_easy_getinfo for HTTP code failed: %s",
curl_easy_strerror(c));
if (slot->http_code >= 400)
return size;
}
do {
ssize_t retval = xwrite(freq->localfile,
(char *) ptr + posn, size - posn);
@ -1977,6 +1988,7 @@ struct http_object_request *new_http_object_request(const char *base_url,
freq->slot = get_active_slot();
curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq);
curl_easy_setopt(freq->slot->curl, CURLOPT_FAILONERROR, 0);
curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr);
curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url);