diff options
| -rw-r--r-- | ssh-fetch.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/ssh-fetch.c b/ssh-fetch.c index 05d3e49f25..bf01fbc00d 100644 --- a/ssh-fetch.c +++ b/ssh-fetch.c @@ -36,12 +36,26 @@ static ssize_t force_write(int fd, void *buffer, size_t length) return ret; } +static int prefetches = 0; + +static struct object_list *in_transit = NULL; +static struct object_list **end_of_transit = &in_transit; + void prefetch(unsigned char *sha1) { char type = 'o'; + struct object_list *node; + if (prefetches > 100) { + fetch(in_transit->item->sha1); + } + node = xmalloc(sizeof(struct object_list)); + node->next = NULL; + node->item = lookup_unknown_object(sha1); + *end_of_transit = node; + end_of_transit = &node->next; force_write(fd_out, &type, 1); force_write(fd_out, sha1, 20); - //memcpy(requested + 20 * prefetches++, sha1, 20); + prefetches++; } static char conn_buf[4096]; @@ -51,6 +65,18 @@ int fetch(unsigned char *sha1) { int ret; signed char remote; + struct object_list *temp; + + if (memcmp(sha1, in_transit->item->sha1, 20)) { + // we must have already fetched it to clean the queue + return has_sha1_file(sha1) ? 0 : -1; + } + prefetches--; + temp = in_transit; + in_transit = in_transit->next; + if (!in_transit) + end_of_transit = &in_transit; + free(temp); if (conn_buf_posn) { remote = conn_buf[0]; |