tests: introduce test_must_fail

diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index acb05554d499598677bc1f0cec3b6ff37e796d88..1bba6e6a64220ef2121ce8817ccae123739f4e8e 100644 (file)
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -16,6 +16,7 @@
 #include "progress.h"
 
 #ifdef THREADED_DELTA_SEARCH
+#include "thread-utils.h"
 #include <pthread.h>
 #endif
 
@@ -1428,8 +1429,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
         * accounting lock.  Compiler will optimize the strangeness
         * away when THREADED_DELTA_SEARCH is not defined.
         */
-       if (trg_entry->delta_data)
-               free(trg_entry->delta_data);
+       free(trg_entry->delta_data);
        cache_lock();
        if (trg_entry->delta_data) {
                delta_cache_size -= trg_entry->delta_size;
@@ -1464,7 +1464,7 @@ static unsigned int check_delta_limit(struct object_entry *me, unsigned int n)
        return m;
 }
 
-static unsigned long free_unpacked_data(struct unpacked *n)
+static unsigned long free_unpacked(struct unpacked *n)
 {
        unsigned long freed_mem = sizeof_delta_index(n->index);
        free_delta_index(n->index);
@@ -1474,12 +1474,6 @@ static unsigned long free_unpacked_data(struct unpacked *n)
                free(n->data);
                n->data = NULL;
        }
-       return freed_mem;
-}
-
-static unsigned long free_unpacked(struct unpacked *n)
-{
-       unsigned long freed_mem = free_unpacked_data(n);
        n->entry = NULL;
        n->depth = 0;
        return freed_mem;
@@ -1520,7 +1514,7 @@ static void find_deltas(struct object_entry **list, unsigned *list_size,
                       mem_usage > window_memory_limit &&
                       count > 1) {
                        uint32_t tail = (idx + window - count) % window;
-                       mem_usage -= free_unpacked_data(array + tail);
+                       mem_usage -= free_unpacked(array + tail);
                        count--;
                }
 
@@ -1553,9 +1547,6 @@ static void find_deltas(struct object_entry **list, unsigned *list_size,
                        if (!m->entry)
                                break;
                        ret = try_delta(n, m, max_depth, &mem_usage);
-                       if (window_memory_limit &&
-                           mem_usage > window_memory_limit)
-                               mem_usage -= free_unpacked_data(m);
                        if (ret < 0)
                                break;
                        else if (ret > 0)
@@ -1861,11 +1852,11 @@ static int git_pack_config(const char *k, const char *v)
        }
        if (!strcmp(k, "pack.threads")) {
                delta_search_threads = git_config_int(k, v);
-               if (delta_search_threads < 1)
+               if (delta_search_threads < 0)
                        die("invalid number of threads specified (%d)",
                            delta_search_threads);
 #ifndef THREADED_DELTA_SEARCH
-               if (delta_search_threads > 1)
+               if (delta_search_threads != 1)
                        warning("no threads support, ignoring %s", k);
 #endif
                return 0;
@@ -2042,7 +2033,8 @@ static void get_object_list(int ac, const char **av)
                        die("bad revision '%s'", line);
        }
 
-       prepare_revision_walk(&revs);
+       if (prepare_revision_walk(&revs))
+               die("revision walk setup failed");
        mark_edges_uninteresting(revs.commits, &revs, show_edge);
        traverse_commit_list(&revs, show_commit, show_object);
 
@@ -2130,10 +2122,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
                if (!prefixcmp(arg, "--threads=")) {
                        char *end;
                        delta_search_threads = strtoul(arg+10, &end, 0);
-                       if (!arg[10] || *end || delta_search_threads < 1)
+                       if (!arg[10] || *end || delta_search_threads < 0)
                                usage(pack_usage);
 #ifndef THREADED_DELTA_SEARCH
-                       if (delta_search_threads > 1)
+                       if (delta_search_threads != 1)
                                warning("no threads support, "
                                        "ignoring %s", arg);
 #endif
@@ -2243,6 +2235,11 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
        if (!pack_to_stdout && thin)
                die("--thin cannot be used to build an indexable pack.");
 
+#ifdef THREADED_DELTA_SEARCH
+       if (!delta_search_threads)      /* --threads=0 means autodetect */
+               delta_search_threads = online_cpus();
+#endif
+
        prepare_packed_git();
 
        if (progress)