commit: add generation number to struct commit

diff --git a/packfile.c b/packfile.c
index 234797cde78b0103f327000204c69a5fa99c0be3..88ba8191518711d24fb42fdd2cd0bb3f70fd2397 100644 (file)
--- a/packfile.c
+++ b/packfile.c
@@ -1,5 +1,5 @@
 #include "cache.h"
-#include "mru.h"
+#include "list.h"
 #include "pack.h"
 #include "dir.h"
 #include "mergesort.h"
@@ -45,7 +45,7 @@ static unsigned int pack_max_fds;
 static size_t peak_pack_mapped;
 static size_t pack_mapped;
 struct packed_git *packed_git;
-struct mru packed_git_mru;
+LIST_HEAD(packed_git_mru);
 
 #define SZ_FMT PRIuMAX
 static inline uintmax_t sz_fmt(size_t s) { return s; }
@@ -304,7 +304,7 @@ void close_pack_index(struct packed_git *p)
        }
 }
 
-static void close_pack(struct packed_git *p)
+void close_pack(struct packed_git *p)
 {
        close_pack_windows(p);
        close_pack_fd(p);
@@ -876,9 +876,10 @@ static void prepare_packed_git_mru(void)
 {
        struct packed_git *p;
 
-       mru_clear(&packed_git_mru);
+       INIT_LIST_HEAD(&packed_git_mru);
+
        for (p = packed_git; p; p = p->next)
-               mru_append(&packed_git_mru, p);
+               list_add_tail(&p->mru, &packed_git_mru);
 }
 
 static int prepare_packed_git_run_once = 0;
@@ -1360,16 +1361,16 @@ int packed_object_info(struct packed_git *p, off_t obj_offset,
                *oi->disk_sizep = revidx[1].offset - obj_offset;
        }
 
-       if (oi->typep || oi->typename) {
+       if (oi->typep || oi->type_name) {
                enum object_type ptot;
                ptot = packed_to_object_type(p, obj_offset, type, &w_curs,
                                             curpos);
                if (oi->typep)
                        *oi->typep = ptot;
-               if (oi->typename) {
-                       const char *tn = typename(ptot);
+               if (oi->type_name) {
+                       const char *tn = type_name(ptot);
                        if (tn)
-                               strbuf_addstr(oi->typename, tn);
+                               strbuf_addstr(oi->type_name, tn);
                }
                if (ptot < 0) {
                        type = OBJ_BAD;
@@ -1712,8 +1713,7 @@ off_t nth_packed_object_offset(const struct packed_git *p, uint32_t n)
                        return off;
                index += p->num_objects * 4 + (off & 0x7fffffff) * 8;
                check_pack_index_ptr(p, index);
-               return (((uint64_t)ntohl(*((uint32_t *)(index + 0)))) << 32) |
-                                  ntohl(*((uint32_t *)(index + 4)));
+               return get_be64(index);
        }
 }
 
@@ -1722,11 +1722,8 @@ off_t find_pack_entry_one(const unsigned char *sha1,
 {
        const uint32_t *level1_ofs = p->index_data;
        const unsigned char *index = p->index_data;
-       unsigned hi, lo, stride;
-       static int debug_lookup = -1;
-
-       if (debug_lookup < 0)
-               debug_lookup = !!getenv("GIT_DEBUG_LOOKUP");
+       unsigned stride;
+       uint32_t result;
 
        if (!index) {
                if (open_pack_index(p))
@@ -1739,8 +1736,6 @@ off_t find_pack_entry_one(const unsigned char *sha1,
                index += 8;
        }
        index += 4 * 256;
-       hi = ntohl(level1_ofs[*sha1]);
-       lo = ((*sha1 == 0x0) ? 0 : ntohl(level1_ofs[*sha1 - 1]));
        if (p->index_version > 1) {
                stride = 20;
        } else {
@@ -1748,24 +1743,8 @@ off_t find_pack_entry_one(const unsigned char *sha1,
                index += 4;
        }
 
-       if (debug_lookup)
-               printf("%02x%02x%02x... lo %u hi %u nr %"PRIu32"\n",
-                      sha1[0], sha1[1], sha1[2], lo, hi, p->num_objects);
-
-       while (lo < hi) {
-               unsigned mi = lo + (hi - lo) / 2;
-               int cmp = hashcmp(index + mi * stride, sha1);
-
-               if (debug_lookup)
-                       printf("lo %u hi %u rg %u mi %u\n",
-                              lo, hi, hi - lo, mi);
-               if (!cmp)
-                       return nth_packed_object_offset(p, mi);
-               if (cmp > 0)
-                       hi = mi;
-               else
-                       lo = mi+1;
-       }
+       if (bsearch_hash(sha1, level1_ofs, index, stride, &result))
+               return nth_packed_object_offset(p, result);
        return 0;
 }
 
@@ -1841,15 +1820,16 @@ static int fill_pack_entry(const unsigned char *sha1,
  */
 int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
 {
-       struct mru_entry *p;
+       struct list_head *pos;
 
        prepare_packed_git();
        if (!packed_git)
                return 0;
 
-       for (p = packed_git_mru.head; p; p = p->next) {
-               if (fill_pack_entry(sha1, e, p->item)) {
-                       mru_mark(&packed_git_mru, p);
+       list_for_each(pos, &packed_git_mru) {
+               struct packed_git *p = list_entry(pos, struct packed_git, mru);
+               if (fill_pack_entry(sha1, e, p)) {
+                       list_move(&p->mru, &packed_git_mru);
                        return 1;
                }
        }
@@ -1870,7 +1850,7 @@ int has_pack_index(const unsigned char *sha1)
        return 1;
 }
 
-static int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn cb, void *data)
+int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn cb, void *data)
 {
        uint32_t i;
        int r = 0;
@@ -1945,7 +1925,7 @@ static int add_promisor_object(const struct object_id *oid,
                struct commit *commit = (struct commit *) obj;
                struct commit_list *parents = commit->parents;
 
-               oidset_insert(set, &commit->tree->object.oid);
+               oidset_insert(set, get_commit_tree_oid(commit));
                for (; parents; parents = parents->next)
                        oidset_insert(set, &parents->item->object.oid);
        } else if (obj->type == OBJ_TAG) {