Fix HTTP request result processing after slot reuse

Add a way to store the results of an HTTP request when a slot finishes
so the results can be processed after the slot has been reused.

Signed-off-by: Nick Hengeveld <nickh@reactrix.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/http-fetch.c b/http-fetch.c
index 61b2188..92326f9 100644 (file)
--- a/http-fetch.c
+++ b/http-fetch.c
@@ -375,6 +375,7 @@ static int fetch_index(struct alt_base *repo, unsigned char *sha1)
 
        FILE *indexfile;
        struct active_request_slot *slot;
+       static struct slot_results results;
 
        if (has_pack_index(sha1))
                return 0;
@@ -393,6 +394,7 @@ static int fetch_index(struct alt_base *repo, unsigned char *sha1)
                             filename);
 
        slot = get_active_slot();
+       slot->results = &results;
        curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile);
        curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
        curl_easy_setopt(slot->curl, CURLOPT_URL, url);
@@ -414,7 +416,7 @@ static int fetch_index(struct alt_base *repo, unsigned char *sha1)
 
        if (start_active_slot(slot)) {
                run_active_slot(slot);
-               if (slot->curl_result != CURLE_OK) {
+               if (results.curl_result != CURLE_OK) {
                        fclose(indexfile);
                        return error("Unable to get pack index %s\n%s", url,
                                     curl_errorstr);
@@ -616,6 +618,7 @@ static int fetch_indices(struct alt_base *repo)
        int i = 0;
 
        struct active_request_slot *slot;
+       static struct slot_results results;
 
        if (repo->got_indices)
                return 0;
@@ -632,15 +635,16 @@ static int fetch_indices(struct alt_base *repo)
        sprintf(url, "%s/objects/info/packs", repo->base);
 
        slot = get_active_slot();
+       slot->results = &results;
        curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
        curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
        curl_easy_setopt(slot->curl, CURLOPT_URL, url);
        curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
        if (start_active_slot(slot)) {
                run_active_slot(slot);
-               if (slot->curl_result != CURLE_OK) {
-                       if (slot->http_code == 404 ||
-                           slot->curl_result == CURLE_FILE_COULDNT_READ_FILE) {
+               if (results.curl_result != CURLE_OK) {
+                       if (results.http_code == 404 ||
+                           results.curl_result == CURLE_FILE_COULDNT_READ_FILE) {
                                repo->got_indices = 1;
                                free(buffer.buffer);
                                return 0;
@@ -695,6 +699,7 @@ static int fetch_pack(struct alt_base *repo, unsigned char *sha1)
        struct curl_slist *range_header = NULL;
 
        struct active_request_slot *slot;
+       static struct slot_results results;
 
        if (fetch_indices(repo))
                return -1;
@@ -721,6 +726,7 @@ static int fetch_pack(struct alt_base *repo, unsigned char *sha1)
                             filename);
 
        slot = get_active_slot();
+       slot->results = &results;
        curl_easy_setopt(slot->curl, CURLOPT_FILE, packfile);
        curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
        curl_easy_setopt(slot->curl, CURLOPT_URL, url);
@@ -742,7 +748,7 @@ static int fetch_pack(struct alt_base *repo, unsigned char *sha1)
 
        if (start_active_slot(slot)) {
                run_active_slot(slot);
-               if (slot->curl_result != CURLE_OK) {
+               if (results.curl_result != CURLE_OK) {
                        fclose(packfile);
                        return error("Unable to get pack file %s\n%s", url,
                                     curl_errorstr);
@@ -894,6 +900,7 @@ int fetch_ref(char *ref, unsigned char *sha1)
         struct buffer buffer;
        char *base = alt->base;
        struct active_request_slot *slot;
+       static struct slot_results results;
         buffer.size = 41;
         buffer.posn = 0;
         buffer.buffer = hex;
@@ -901,13 +908,14 @@ int fetch_ref(char *ref, unsigned char *sha1)
         
        url = quote_ref_url(base, ref);
        slot = get_active_slot();
+       slot->results = &results;
        curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
        curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
        curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
        curl_easy_setopt(slot->curl, CURLOPT_URL, url);
        if (start_active_slot(slot)) {
                run_active_slot(slot);
-               if (slot->curl_result != CURLE_OK)
+               if (results.curl_result != CURLE_OK)
                        return error("Couldn't get %s for %s\n%s",
                                     url, ref, curl_errorstr);
        } else {

diff --git a/http.c b/http.c
index 75e6717..eefb0f0 100644 (file)
--- a/http.c
+++ b/http.c
@@ -335,6 +335,7 @@ struct active_request_slot *get_active_slot(void)
        active_requests++;
        slot->in_use = 1;
        slot->local = NULL;
+       slot->results = NULL;
        slot->callback_data = NULL;
        slot->callback_func = NULL;
        curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
@@ -421,7 +422,13 @@ static void finish_active_slot(struct active_request_slot *slot)
         active_requests--;
         slot->in_use = 0;
         curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
- 
+
+       /* Store slot results so they can be read after the slot is reused */
+       if (slot->results != NULL) {
+               slot->results->curl_result = slot->curl_result;
+               slot->results->http_code = slot->http_code;
+       }
+
         /* Run callback if appropriate */
         if (slot->callback_func != NULL) {
                 slot->callback_func(slot->callback_data);

diff --git a/http.h b/http.h
index ed4ea33..d6dc9d8 100644 (file)
--- a/http.h
+++ b/http.h
@@ -22,6 +22,12 @@
 #define NO_CURL_EASY_DUPHANDLE
 #endif
 
+struct slot_results
+{
+       CURLcode curl_result;
+       long http_code;
+};
+
 struct active_request_slot
 {
        CURL *curl;
@@ -29,6 +35,7 @@ struct active_request_slot
        int in_use;
        CURLcode curl_result;
        long http_code;
+       struct slot_results *results;
        void *callback_data;
        void (*callback_func)(void *data);
        struct active_request_slot *next;