#include "bulk-checkin.h"
#include "streaming.h"
#include "dir.h"
+#include "mru.h"
#ifndef O_NOATIME
#if defined(__linux__) && (defined(__i386__) || defined(__PPC__))
0
};
-/*
- * A pointer to the last packed_git in which an object was found.
- * When an object is sought, we look in this packfile first, because
- * objects that are looked up at similar times are often in the same
- * packfile as one another.
- */
-static struct packed_git *last_found_pack;
-
static struct cached_object *find_cached_object(const unsigned char *sha1)
{
int i;
return -1;
}
}
- if (!strcmp_icase(ent->base, normalized_objdir)) {
+ if (!fspathcmp(ent->base, normalized_objdir)) {
free(ent);
return -1;
}
static size_t pack_mapped;
struct packed_git *packed_git;
+static struct mru packed_git_mru_storage;
+struct mru *packed_git_mru = &packed_git_mru_storage;
+
void pack_report(void)
{
fprintf(stderr,
for (p = packed_git; p; p = p->next)
if (p->do_not_close)
- die("BUG! Want to close pack marked 'do-not-close'");
+ die("BUG: want to close pack marked 'do-not-close'");
else
close_pack(p);
}
}
}
-/*
- * This is used by git-repack in case a newly created pack happens to
- * contain the same set of objects as an existing one. In that case
- * the resulting file might be different even if its name would be the
- * same. It is best to close any reference to the old pack before it is
- * replaced on disk. Of course no index pointers or windows for given pack
- * must subsist at this point. If ever objects from this pack are requested
- * again, the new version of the pack will be reinitialized through
- * reprepare_packed_git().
- */
-void free_pack_by_name(const char *pack_name)
-{
- struct packed_git *p, **pp = &packed_git;
-
- while (*pp) {
- p = *pp;
- if (strcmp(pack_name, p->pack_name) == 0) {
- clear_delta_base_cache();
- close_pack(p);
- free(p->bad_object_sha1);
- *pp = p->next;
- if (last_found_pack == p)
- last_found_pack = NULL;
- free(p);
- return;
- }
- pp = &p->next;
- }
-}
-
static unsigned int get_max_fd_limit(void)
{
#ifdef RLIMIT_NOFILE
PROT_READ, MAP_PRIVATE,
p->pack_fd, win->offset);
if (win->base == MAP_FAILED)
- die("packfile %s cannot be mapped: %s",
- p->pack_name,
- strerror(errno));
+ die_errno("packfile %s cannot be mapped",
+ p->pack_name);
if (!win->offset && win->len == p->pack_size
&& !p->do_not_close)
close_pack_fd(p);
dir = opendir(path.buf);
if (!dir) {
if (errno != ENOENT)
- error("unable to open object pack directory: %s: %s",
- path.buf, strerror(errno));
+ error_errno("unable to open object pack directory: %s",
+ path.buf);
strbuf_release(&path);
return;
}
free(ary);
}
+static void prepare_packed_git_mru(void)
+{
+ struct packed_git *p;
+
+ mru_clear(packed_git_mru);
+ for (p = packed_git; p; p = p->next)
+ mru_append(packed_git_mru, p);
+}
+
static int prepare_packed_git_run_once = 0;
void prepare_packed_git(void)
{
alt->name[-1] = '/';
}
rearrange_packed_git();
+ prepare_packed_git_mru();
prepare_packed_git_run_once = 1;
}
return used;
}
-int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz)
+static int unpack_sha1_short_header(git_zstream *stream,
+ unsigned char *map, unsigned long mapsize,
+ void *buffer, unsigned long bufsiz)
{
/* Get the data stream */
memset(stream, 0, sizeof(*stream));
return git_inflate(stream, 0);
}
+int unpack_sha1_header(git_zstream *stream,
+ unsigned char *map, unsigned long mapsize,
+ void *buffer, unsigned long bufsiz)
+{
+ int status = unpack_sha1_short_header(stream, map, mapsize,
+ buffer, bufsiz);
+
+ if (status < Z_OK)
+ return status;
+
+ /* Make sure we have the terminating NUL */
+ if (!memchr(buffer, '\0', stream->next_out - (unsigned char *)buffer))
+ return -1;
+ return 0;
+}
+
static int unpack_sha1_header_to_strbuf(git_zstream *stream, unsigned char *map,
unsigned long mapsize, void *buffer,
unsigned long bufsiz, struct strbuf *header)
{
int status;
- status = unpack_sha1_header(stream, map, mapsize, buffer, bufsiz);
+ status = unpack_sha1_short_header(stream, map, mapsize, buffer, bufsiz);
+ if (status < Z_OK)
+ return -1;
/*
* Check if entire header is unpacked in the first iteration.
*/
for (;;) {
char c = *hdr++;
+ if (!c)
+ return -1;
if (c == ' ')
break;
type_len++;
strbuf_add(oi->typename, type_buf, type_len);
/*
* Set type to 0 if its an unknown object and
- * we're obtaining the type using '--allow-unkown-type'
+ * we're obtaining the type using '--allow-unknown-type'
* option.
*/
if ((flags & LOOKUP_UNKNOWN_OBJECT) && (type < 0))
if (do_check_packed_object_crc && p->index_version > 1) {
struct revindex_entry *revidx = find_pack_revindex(p, obj_offset);
- unsigned long len = revidx[1].offset - obj_offset;
+ off_t len = revidx[1].offset - obj_offset;
if (check_pack_crc(p, &w_curs, obj_offset, len, revidx->nr)) {
const unsigned char *sha1 =
nth_packed_object_sha1(p, revidx->nr);
case OBJ_OFS_DELTA:
case OBJ_REF_DELTA:
if (data)
- die("BUG in unpack_entry: left loop at a valid delta");
+ die("BUG: unpack_entry: left loop at a valid delta");
break;
case OBJ_COMMIT:
case OBJ_TREE:
*/
static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
{
- struct packed_git *p;
+ struct mru_entry *p;
prepare_packed_git();
if (!packed_git)
return 0;
- if (last_found_pack && fill_pack_entry(sha1, e, last_found_pack))
- return 1;
-
- for (p = packed_git; p; p = p->next) {
- if (p == last_found_pack)
- continue; /* we already checked this one */
-
- if (fill_pack_entry(sha1, e, p)) {
- last_found_pack = p;
+ for (p = packed_git_mru->head; p; p = p->next) {
+ if (fill_pack_entry(sha1, e, p->item)) {
+ mru_mark(packed_git_mru, p);
return 1;
}
}
unlink_or_warn(tmpfile);
if (ret) {
if (ret != EEXIST) {
- return error("unable to write sha1 filename %s: %s", filename, strerror(ret));
+ return error_errno("unable to write sha1 filename %s", filename);
}
/* FIXME!!! Collision check here ? */
}
static int write_buffer(int fd, const void *buf, size_t len)
{
if (write_in_full(fd, buf, len) < 0)
- return error("file write error (%s)", strerror(errno));
+ return error_errno("file write error");
return 0;
}
if (errno == EACCES)
return error("insufficient permission for adding an object to repository database %s", get_object_directory());
else
- return error("unable to create temporary file: %s", strerror(errno));
+ return error_errno("unable to create temporary file");
}
/* Set it up */
utb.actime = mtime;
utb.modtime = mtime;
if (utime(tmp_file.buf, &utb) < 0)
- warning("failed utime() on %s: %s",
- tmp_file.buf, strerror(errno));
+ warning_errno("failed utime() on %s", tmp_file.buf);
}
return finalize_object_file(tmp_file.buf, filename);
return has_sha1_file(oid->hash);
}
+int has_object_file_with_flags(const struct object_id *oid, int flags)
+{
+ return has_sha1_file_with_flags(oid->hash, flags);
+}
+
static void check_tree(const void *buf, size_t size)
{
struct tree_desc desc;
if (size == read_in_full(fd, buf, size))
ret = index_mem(sha1, buf, size, type, path, flags);
else
- ret = error("short read %s", strerror(errno));
+ ret = error_errno("short read");
free(buf);
} else {
void *buf = xmmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
case S_IFREG:
fd = open(path, O_RDONLY);
if (fd < 0)
- return error("open(\"%s\"): %s", path,
- strerror(errno));
+ return error_errno("open(\"%s\")", path);
if (index_fd(sha1, fd, st, OBJ_BLOB, path, flags) < 0)
return error("%s: failed to insert into database",
path);
break;
case S_IFLNK:
- if (strbuf_readlink(&sb, path, st->st_size)) {
- char *errstr = strerror(errno);
- return error("readlink(\"%s\"): %s", path,
- errstr);
- }
+ if (strbuf_readlink(&sb, path, st->st_size))
+ return error_errno("readlink(\"%s\")", path);
if (!(flags & HASH_WRITE_OBJECT))
hash_sha1_file(sb.buf, sb.len, blob_type, sha1);
else if (write_sha1_file(sb.buf, sb.len, blob_type, sha1))
if (!dir) {
if (errno == ENOENT)
return 0;
- return error("unable to open %s: %s", path->buf, strerror(errno));
+ return error_errno("unable to open %s", path->buf);
}
while ((de = readdir(dir))) {