diff --git a/sha1_file.c b/sha1_file.c
index 0be9737bd12948acd40c5c66af7e80f08da063b3..be991ed22acb0c84141474360f345d51ccc594be 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
#include "commit.h"
#include "tag.h"
#include "tree.h"
+#include "refs.h"
#ifndef O_NOATIME
#if defined(__linux__) && (defined(__i386__) || defined(__PPC__))
}
}
-static int unuse_one_window(struct packed_git *current)
+static int unuse_one_window(struct packed_git *current, int keep_fd)
{
struct packed_git *p, *lru_p = NULL;
struct pack_window *lru_w = NULL, *lru_l = NULL;
lru_l->next = lru_w->next;
else {
lru_p->windows = lru_w->next;
- if (!lru_p->windows && lru_p != current) {
+ if (!lru_p->windows && lru_p->pack_fd != keep_fd) {
close(lru_p->pack_fd);
lru_p->pack_fd = -1;
}
return 0;
}
-void release_pack_memory(size_t need)
+void release_pack_memory(size_t need, int fd)
{
size_t cur = pack_mapped;
- while (need >= (cur - pack_mapped) && unuse_one_window(NULL))
+ while (need >= (cur - pack_mapped) && unuse_one_window(NULL, fd))
; /* nothing */
}
win->len = (size_t)len;
pack_mapped += win->len;
while (packed_git_limit < pack_mapped
- && unuse_one_window(p))
+ && unuse_one_window(p, p->pack_fd))
; /* nothing */
win->base = xmmap(NULL, win->len,
PROT_READ, MAP_PRIVATE,
@@ -1160,6 +1161,43 @@ static void *unpack_sha1_file(void *map, unsigned long mapsize, enum object_type
return unpack_sha1_rest(&stream, hdr, *size, sha1);
}
+unsigned long get_size_from_delta(struct packed_git *p,
+ struct pack_window **w_curs,
+ off_t curpos)
+{
+ const unsigned char *data;
+ unsigned char delta_head[20], *in;
+ z_stream stream;
+ int st;
+
+ memset(&stream, 0, sizeof(stream));
+ stream.next_out = delta_head;
+ stream.avail_out = sizeof(delta_head);
+
+ inflateInit(&stream);
+ do {
+ in = use_pack(p, w_curs, curpos, &stream.avail_in);
+ stream.next_in = in;
+ st = inflate(&stream, Z_FINISH);
+ curpos += stream.next_in - in;
+ } while ((st == Z_OK || st == Z_BUF_ERROR) &&
+ stream.total_out < sizeof(delta_head));
+ inflateEnd(&stream);
+ if ((st != Z_STREAM_END) && stream.total_out != sizeof(delta_head))
+ die("delta data unpack-initial failed");
+
+ /* Examine the initial part of the delta to figure out
+ * the result size.
+ */
+ data = delta_head;
+
+ /* ignore base size */
+ get_delta_hdr_size(&data, delta_head+sizeof(delta_head));
+
+ /* Read the result size */
+ return get_delta_hdr_size(&data, delta_head+sizeof(delta_head));
+}
+
static off_t get_delta_base(struct packed_git *p,
struct pack_window **w_curs,
off_t *curpos,
* based on a base with a wrong size. This saves tons of
* inflate() calls.
*/
- if (sizep) {
- const unsigned char *data;
- unsigned char delta_head[20], *in;
- z_stream stream;
- int st;
-
- memset(&stream, 0, sizeof(stream));
- stream.next_out = delta_head;
- stream.avail_out = sizeof(delta_head);
-
- inflateInit(&stream);
- do {
- in = use_pack(p, w_curs, curpos, &stream.avail_in);
- stream.next_in = in;
- st = inflate(&stream, Z_FINISH);
- curpos += stream.next_in - in;
- } while ((st == Z_OK || st == Z_BUF_ERROR)
- && stream.total_out < sizeof(delta_head));
- inflateEnd(&stream);
- if ((st != Z_STREAM_END) &&
- stream.total_out != sizeof(delta_head))
- die("delta data unpack-initial failed");
-
- /* Examine the initial part of the delta to figure out
- * the result size.
- */
- data = delta_head;
-
- /* ignore base size */
- get_delta_hdr_size(&data, delta_head+sizeof(delta_head));
-
- /* Read the result size */
- *sizep = get_delta_hdr_size(&data, delta_head+sizeof(delta_head));
- }
+ if (sizep)
+ *sizep = get_size_from_delta(p, w_curs, curpos);
return type;
}
{
char* buf = *return_buf;
unsigned long size = *return_size;
- int iret;
+ ssize_t iret;
unsigned long off = 0;
do {
*/
if ((type == OBJ_BLOB) && S_ISREG(st->st_mode)) {
unsigned long nsize = size;
- char *nbuf = buf;
- if (convert_to_git(path, &nbuf, &nsize)) {
- if (size)
- munmap(buf, size);
+ char *nbuf = convert_to_git(path, buf, &nsize);
+ if (nbuf) {
+ munmap(buf, size);
size = nsize;
buf = nbuf;
re_allocated = 1;
@@ -2387,6 +2392,8 @@ int index_path(unsigned char *sha1, const char *path, struct stat *st, int write
path);
free(target);
break;
+ case S_IFDIR:
+ return resolve_gitlink_ref(path, "HEAD", sha1);
default:
return error("%s: unsupported file type", path);
}