Make fread/fwrite-like functions in http.c more like fread/fwrite.

diff --git a/revision.c b/revision.c
index cb69a227d5cb9cb58c0173fac666e1ee384ba6ef..d4aaf0ef257943029923f741b4ae383bb00d7f5f 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -911,26 +911,11 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
                commit->object.flags |= TREESAME;
 }
 
-static void commit_list_insert_by_date_cached(struct commit *p, struct commit_list **head,
-                   struct commit_list *cached_base, struct commit_list **cache)
-{
-       struct commit_list *new_entry;
-
-       if (cached_base && p->date < cached_base->item->date)
-               new_entry = commit_list_insert_by_date(p, &cached_base->next);
-       else
-               new_entry = commit_list_insert_by_date(p, head);
-
-       if (cache && (!*cache || p->date < (*cache)->item->date))
-               *cache = new_entry;
-}
-
 static int process_parents(struct rev_info *revs, struct commit *commit,
-                          struct commit_list **list, struct commit_list **cache_ptr)
+                          struct commit_list **list, struct prio_queue *queue)
 {
        struct commit_list *parent = commit->parents;
        unsigned left_flag;
-       struct commit_list *cached_base = cache_ptr ? *cache_ptr : NULL;
 
        if (commit->object.flags & ADDED)
                return 0;
@@ -966,7 +951,9 @@ static int process_parents(struct rev_info *revs, struct commit *commit,
                                continue;
                        p->object.flags |= SEEN;
                        if (list)
-                               commit_list_insert_by_date_cached(p, list, cached_base, cache_ptr);
+                               commit_list_insert_by_date(p, list);
+                       if (queue)
+                               prio_queue_put(queue, p);
                }
                return 0;
        }
@@ -1006,7 +993,9 @@ static int process_parents(struct rev_info *revs, struct commit *commit,
                if (!(p->object.flags & SEEN)) {
                        p->object.flags |= SEEN;
                        if (list)
-                               commit_list_insert_by_date_cached(p, list, cached_base, cache_ptr);
+                               commit_list_insert_by_date(p, list);
+                       if (queue)
+                               prio_queue_put(queue, p);
                }
                if (revs->first_parent_only)
                        break;
@@ -1894,7 +1883,7 @@ int handle_revision_arg(const char *arg_, struct rev_info *revs, int flags, unsi
        return 0;
 }
 
-static void read_pathspec_from_stdin(struct rev_info *revs, struct strbuf *sb,
+static void read_pathspec_from_stdin(struct strbuf *sb,
                                     struct argv_array *prune)
 {
        while (strbuf_getline(sb, stdin) != EOF)
@@ -1928,7 +1917,7 @@ static void read_revisions_from_stdin(struct rev_info *revs,
                        die("bad revision '%s'", sb.buf);
        }
        if (seen_dashdash)
-               read_pathspec_from_stdin(revs, &sb, prune);
+               read_pathspec_from_stdin(&sb, prune);
 
        strbuf_release(&sb);
        warn_on_object_refname_ambiguity = save_warning;
@@ -2752,7 +2741,7 @@ static struct merge_simplify_state *locate_simplify_state(struct rev_info *revs,
        return st;
 }
 
-static int mark_redundant_parents(struct rev_info *revs, struct commit *commit)
+static int mark_redundant_parents(struct commit *commit)
 {
        struct commit_list *h = reduce_heads(commit->parents);
        int i = 0, marked = 0;
@@ -2788,7 +2777,7 @@ static int mark_redundant_parents(struct rev_info *revs, struct commit *commit)
        return marked;
 }
 
-static int mark_treesame_root_parents(struct rev_info *revs, struct commit *commit)
+static int mark_treesame_root_parents(struct commit *commit)
 {
        struct commit_list *p;
        int marked = 0;
@@ -2980,8 +2969,8 @@ static struct commit_list **simplify_one(struct rev_info *revs, struct commit *c
         * Detect and simplify both cases.
         */
        if (1 < cnt) {
-               int marked = mark_redundant_parents(revs, commit);
-               marked += mark_treesame_root_parents(revs, commit);
+               int marked = mark_redundant_parents(commit);
+               marked += mark_treesame_root_parents(commit);
                if (marked)
                        marked -= leave_one_treesame_to_parent(revs, commit);
                if (marked)
@@ -3345,14 +3334,14 @@ int prepare_revision_walk(struct rev_info *revs)
        return 0;
 }
 
-static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp)
+static enum rewrite_result rewrite_one_1(struct rev_info *revs,
+                                        struct commit **pp,
+                                        struct prio_queue *queue)
 {
-       struct commit_list *cache = NULL;
-
        for (;;) {
                struct commit *p = *pp;
                if (!revs->limited)
-                       if (process_parents(revs, p, &revs->commits, &cache) < 0)
+                       if (process_parents(revs, p, NULL, queue) < 0)
                                return rewrite_one_error;
                if (p->object.flags & UNINTERESTING)
                        return rewrite_one_ok;
@@ -3366,6 +3355,31 @@ static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp
        }
 }
 
+static void merge_queue_into_list(struct prio_queue *q, struct commit_list **list)
+{
+       while (q->nr) {
+               struct commit *item = prio_queue_peek(q);
+               struct commit_list *p = *list;
+
+               if (p && p->item->date >= item->date)
+                       list = &p->next;
+               else {
+                       p = commit_list_insert(item, list);
+                       list = &p->next; /* skip newly added item */
+                       prio_queue_get(q); /* pop item */
+               }
+       }
+}
+
+static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp)
+{
+       struct prio_queue queue = { compare_commits_by_commit_date };
+       enum rewrite_result ret = rewrite_one_1(revs, pp, &queue);
+       merge_queue_into_list(&queue, &revs->commits);
+       clear_prio_queue(&queue);
+       return ret;
+}
+
 int rewrite_parents(struct rev_info *revs, struct commit *commit,
        rewrite_parent_fn_t rewrite_parent)
 {