Jonathan Tan <jonathanta...@google.com> writes:

> When "ACK %s ready" is received, find_common() clears rev_list in an
> attempt to stop further "have" lines from being sent [1]. It is much
> more readable to explicitly break from the loop instead.
>
> So explicitly break from the loop, and make the clearing of the rev_list
> happen unconditionally.
>
> [1] The rationale is further described in the originating commit
> f2cba9299b ("fetch-pack: Finish negotation if remote replies "ACK %s
> ready"", 2011-03-14).
>
> Signed-off-by: Jonathan Tan <jonathanta...@google.com>
> ---
>  fetch-pack.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)

This makes more sense to me; I was wondering where the prio-queue
gets cleared, or leaking it is OK, while reading the previous round.

Thanks.

> diff --git a/fetch-pack.c b/fetch-pack.c
> index 2812499a5..60adfc073 100644
> --- a/fetch-pack.c
> +++ b/fetch-pack.c
> @@ -517,10 +517,8 @@ static int find_common(struct fetch_pack_args *args,
>                                       mark_common(commit, 0, 1);
>                                       retval = 0;
>                                       got_continue = 1;
> -                                     if (ack == ACK_ready) {
> -                                             clear_prio_queue(&rev_list);
> +                                     if (ack == ACK_ready)
>                                               got_ready = 1;
> -                                     }
>                                       break;
>                                       }
>                               }
> @@ -530,6 +528,8 @@ static int find_common(struct fetch_pack_args *args,
>                               print_verbose(args, _("giving up"));
>                               break; /* give up */
>                       }
> +                     if (got_ready)
> +                             break;
>               }
>       }
>  done:
> @@ -1096,6 +1096,7 @@ static struct ref *do_fetch_pack(struct fetch_pack_args 
> *args,
>               die(_("git fetch-pack: fetch failed."));
>  
>   all_done:
> +     clear_prio_queue(&rev_list);
>       return ref;
>  }
>  
> @@ -1300,7 +1301,6 @@ static int process_acks(struct packet_reader *reader, 
> struct oidset *common)
>               }
>  
>               if (!strcmp(reader->line, "ready")) {
> -                     clear_prio_queue(&rev_list);
>                       received_ready = 1;
>                       continue;
>               }
> @@ -1441,6 +1441,7 @@ static struct ref *do_fetch_pack_v2(struct 
> fetch_pack_args *args,
>               }
>       }
>  
> +     clear_prio_queue(&rev_list);
>       oidset_clear(&common);
>       return ref;
>  }

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