[pacman-dev] [PATCH] Simplify construction of payloads in download_files

[Allan McRae]

On 20/2/20 11:40 am, Anatol Pomozov wrote:
> Currently, download_files() creates payloads for all packages then
> iterates over them, calling download_single_file.  This can be
> simplified by looping over packages and constructing the payload as needed.
> 
> Signed-off-by: Anatol Pomozov <anatol.pomozov at gmail.com>
> ---


Thanks for the updated patch.   In future can you mark the updates with
a "v2" in the [PATCH] part.

Allan

>  lib/libalpm/sync.c | 34 +++++++++++++---------------------
>  1 file changed, 13 insertions(+), 21 deletions(-)
> 
> diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
> index 9b1e1197..89cc7867 100644
> --- a/lib/libalpm/sync.c
> +++ b/lib/libalpm/sync.c
> @@ -693,18 +693,6 @@ static int prompt_to_delete(alpm_handle_t *handle, const char *filepath,
>  	return question.remove;
>  }
>  
> -static struct dload_payload *build_payload(alpm_handle_t *handle,
> -		const char *filename, size_t size, alpm_list_t *servers)
> -{
> -		struct dload_payload *payload;
> -
> -		CALLOC(payload, 1, sizeof(*payload), RET_ERR(handle, ALPM_ERR_MEMORY, NULL));
> -		STRDUP(payload->remote_name, filename, FREE(payload); RET_ERR(handle, ALPM_ERR_MEMORY, NULL));
> -		payload->max_size = size;
> -		payload->servers = servers;
> -		return payload;
> -}
> -
>  static int find_dl_candidates(alpm_handle_t *handle, alpm_list_t **files)
>  {
>  	for(alpm_list_t *i = handle->trans->add; i; i = i->next) {
> @@ -729,10 +717,7 @@ static int find_dl_candidates(alpm_handle_t *handle, alpm_list_t **files)
>  			}
>  
>  			if(spkg->download_size != 0 || !fpath) {
> -				struct dload_payload *payload;
> -				payload = build_payload(handle, spkg->filename, spkg->size, repo->servers);
> -				ASSERT(payload, return -1);
> -				*files = alpm_list_add(*files, payload);
> +				*files = alpm_list_add(*files, spkg);
>  			}
>  
>  			FREE(fpath);
> @@ -815,8 +800,8 @@ static int download_files(alpm_handle_t *handle)
>  			CALLOC(file_sizes, num_files, sizeof(off_t), goto finish);
>  
>  			for(i = files, idx = 0; i; i = i->next, idx++) {
> -				const struct dload_payload *payload = i->data;
> -				file_sizes[idx] = payload->max_size;
> +				const alpm_pkg_t *pkg = i->data;
> +				file_sizes[idx] = pkg->size;
>  			}
>  
>  			ret = _alpm_check_downloadspace(handle, cachedir, num_files, file_sizes);
> @@ -832,19 +817,26 @@ static int download_files(alpm_handle_t *handle)
>  		EVENT(handle, &event);
>  		event.type = ALPM_EVENT_RETRIEVE_DONE;
>  		for(i = files; i; i = i->next) {
> -			if(download_single_file(handle, i->data, cachedir) == -1) {
> +			const alpm_pkg_t *pkg = i->data;
> +			struct dload_payload payload = {0};
> +
> +			STRDUP(payload.remote_name, pkg->filename, handle->pm_errno = ALPM_ERR_MEMORY; goto finish);
> +			payload.servers = pkg->origin_data.db->servers;
> +			payload.max_size = pkg->size;
> +
> +			if(download_single_file(handle, &payload, cachedir) == -1) {
>  				errors++;
>  				event.type = ALPM_EVENT_RETRIEVE_FAILED;
>  				_alpm_log(handle, ALPM_LOG_WARNING, _("failed to retrieve some files\n"));
>  			}
> +			_alpm_dload_payload_reset(&payload);
>  		}
>  		EVENT(handle, &event);
>  	}
>  
>  finish:
>  	if(files) {
> -		alpm_list_free_inner(files, (alpm_list_fn_free)_alpm_dload_payload_reset);
> -		FREELIST(files);
> +		alpm_list_free(files);
>  	}
>  
>  	for(i = handle->trans->add; i; i = i->next) {
>