autodetect number of CPUs by default when using threads

diff --git a/builtin-fsck.c b/builtin-fsck.c
index 78a6e1ff7101f7bb616365e5d4c9d9cf7f8963ae..297b2c41c62b9f2d918cf0bc9fd113e6e3bb71af 100644 (file)
--- a/builtin-fsck.c
+++ b/builtin-fsck.c
@@ -64,11 +64,11 @@ static int fsck_error_func(struct object *obj, int type, const char *err, ...)
        return (type == FSCK_WARN) ? 0 : 1;
 }
 
+static struct object_array pending;
+
 static int mark_object(struct object *obj, int type, void *data)
 {
-       struct tree *tree = NULL;
        struct object *parent = data;
-       int result;
 
        if (!obj) {
                printf("broken link from %7s %s\n",
@@ -96,6 +96,20 @@ static int mark_object(struct object *obj, int type, void *data)
                return 1;
        }
 
+       add_object_array(obj, (void *) parent, &pending);
+       return 0;
+}
+
+static void mark_object_reachable(struct object *obj)
+{
+       mark_object(obj, OBJ_ANY, 0);
+}
+
+static int traverse_one_object(struct object *obj, struct object *parent)
+{
+       int result;
+       struct tree *tree = NULL;
+
        if (obj->type == OBJ_TREE) {
                obj->parsed = 0;
                tree = (struct tree *)obj;
@@ -107,15 +121,22 @@ static int mark_object(struct object *obj, int type, void *data)
                free(tree->buffer);
                tree->buffer = NULL;
        }
-       if (result < 0)
-               result = 1;
-
        return result;
 }
 
-static void mark_object_reachable(struct object *obj)
+static int traverse_reachable(void)
 {
-       mark_object(obj, OBJ_ANY, 0);
+       int result = 0;
+       while (pending.nr) {
+               struct object_array_entry *entry;
+               struct object *obj, *parent;
+
+               entry = pending.objects + --pending.nr;
+               obj = entry->item;
+               parent = (struct object *) entry->name;
+               result |= traverse_one_object(obj, parent);
+       }
+       return !!result;
 }
 
 static int mark_used(struct object *obj, int type, void *data)
@@ -201,12 +222,16 @@ static void check_unreachable_object(struct object *obj)
                                char *buf = read_sha1_file(obj->sha1,
                                                &type, &size);
                                if (buf) {
-                                       fwrite(buf, size, 1, f);
+                                       if (fwrite(buf, size, 1, f) != 1)
+                                               die("Could not write %s: %s",
+                                                   filename, strerror(errno));
                                        free(buf);
                                }
                        } else
                                fprintf(f, "%s\n", sha1_to_hex(obj->sha1));
-                       fclose(f);
+                       if (fclose(f))
+                               die("Could not finish %s: %s",
+                                   filename, strerror(errno));
                }
                return;
        }
@@ -233,6 +258,9 @@ static void check_connectivity(void)
 {
        int i, max;
 
+       /* Traverse the pending reachable objects */
+       traverse_reachable();
+
        /* Look up all the requirements, warn about missing objects.. */
        max = get_max_object_index();
        if (verbose)
@@ -385,6 +413,8 @@ static void fsck_dir(int i, char *path)
                        add_sha1_list(sha1, DIRENT_SORT_HINT(de));
                        continue;
                }
+               if (!prefixcmp(de->d_name, "tmp_obj_"))
+                       continue;
                fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
        }
        closedir(dir);
@@ -539,7 +569,7 @@ static int fsck_cache_tree(struct cache_tree *it)
 }
 
 static char const * const fsck_usage[] = {
-       "git-fsck [options] [<object>...]",
+       "git fsck [options] [<object>...]",
        NULL
 };
 
@@ -585,7 +615,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
                prepare_packed_git();
                for (p = packed_git; p; p = p->next)
                        /* verify gives error messages itself */
-                       verify_pack(p, 0);
+                       verify_pack(p);
 
                for (p = packed_git; p; p = p->next) {
                        uint32_t j, num;