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From: Jiang Xin <worldhello.net@gmail.com>
To: Han Xin <chiyutianyi@gmail.com>
Cc: Junio C Hamano <gitster@pobox.com>,
	Git List <git@vger.kernel.org>, Jeff King <peff@peff.net>,
	Jiang Xin <zhiyou.jx@alibaba-inc.com>,
	Philip Oakley <philipoakley@iee.email>,
	Han Xin <hanxin.hx@alibaba-inc.com>
Subject: Re: [PATCH v2 4/6] object-file.c: read input stream repeatedly in write_loose_object()
Date: Thu, 18 Nov 2021 13:56:25 +0800	[thread overview]
Message-ID: <CANYiYbF83iHZb=kr-yAwp8rBPx47e6O=80Avp23092f8J1m2RA@mail.gmail.com> (raw)
In-Reply-To: <20211112094010.73468-4-chiyutianyi@gmail.com>

On Fri, Nov 12, 2021 at 5:43 PM Han Xin <chiyutianyi@gmail.com> wrote:
>
> From: Han Xin <hanxin.hx@alibaba-inc.com>
>
> Read input stream repeatedly in write_loose_object() unless reach the
> end, so that we can divide the large blob write into many small blocks.

In order to prepare the stream version of "write_loose_object()", we need ...

>
> Signed-off-by: Han Xin <hanxin.hx@alibaba-inc.com>
> ---
>  object-file.c | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)
>
> diff --git a/object-file.c b/object-file.c
> index 8393659f0d..e333448c54 100644
> --- a/object-file.c
> +++ b/object-file.c
> @@ -1891,7 +1891,7 @@ static int write_loose_object(const struct object_id *oid, char *hdr,
>         static struct strbuf tmp_file = STRBUF_INIT;
>         static struct strbuf filename = STRBUF_INIT;
>         const char *buf;
> -       unsigned long len;
> +       int flush = 0;
>
>         if (is_null_oid(oid)) {
>                 /* When oid is not determined, save tmp file to odb path. */
> @@ -1927,12 +1927,16 @@ static int write_loose_object(const struct object_id *oid, char *hdr,
>         the_hash_algo->update_fn(&c, hdr, hdrlen);
>
>         /* Then the data itself.. */
> -       buf = in_stream->read(in_stream->data, &len);
> -       stream.next_in = (void *)buf;
> -       stream.avail_in = len;
>         do {
>                 unsigned char *in0 = stream.next_in;
> -               ret = git_deflate(&stream, Z_FINISH);
> +               if (!stream.avail_in) {
> +                       if ((buf = in_stream->read(in_stream->data, &stream.avail_in))) {

if ((buf = in_stream->read(in_stream->data, &stream.avail_in)) != NULL) {

Or split this long line into:

    buf = in_stream->read(in_stream->data, &stream.avail_in);
    if (buf) {

> +                               stream.next_in = (void *)buf;
> +                               in0 = (unsigned char *)buf;
> +                       } else
> +                               flush = Z_FINISH;

Add {} around this single line, see:

  https://github.com/git/git/blob/master/Documentation/CodingGuidelines#L279-L289

> +               }
> +               ret = git_deflate(&stream, flush);
>                 the_hash_algo->update_fn(&c, in0, stream.next_in - in0);
>                 if (!dry_run && write_buffer(fd, compressed, stream.next_out - compressed) < 0)
>                         die(_("unable to write loose object file"));
> --
> 2.33.1.44.g9344627884.agit.6.5.4
>

  reply	other threads:[~2021-11-18  5:56 UTC|newest]

Thread overview: 211+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-09  8:20 [PATCH] unpack-objects: unpack large object in stream Han Xin
2021-10-19  7:37 ` Han Xin
2021-10-20 14:42 ` Philip Oakley
2021-10-21  3:42   ` Han Xin
2021-10-21 22:47     ` Philip Oakley
2021-11-03  1:48 ` Han Xin
2021-11-03 10:07   ` Philip Oakley
2021-11-12  9:40 ` [PATCH v2 1/6] object-file: refactor write_loose_object() to support inputstream Han Xin
2021-11-18  4:59   ` Jiang Xin
2021-11-18  6:45     ` Junio C Hamano
2021-11-12  9:40 ` [PATCH v2 2/6] object-file.c: add dry_run mode for write_loose_object() Han Xin
2021-11-18  5:42   ` Jiang Xin
2021-11-12  9:40 ` [PATCH v2 3/6] object-file.c: handle nil oid in write_loose_object() Han Xin
2021-11-18  5:49   ` Jiang Xin
2021-11-12  9:40 ` [PATCH v2 4/6] object-file.c: read input stream repeatedly " Han Xin
2021-11-18  5:56   ` Jiang Xin [this message]
2021-11-12  9:40 ` [PATCH v2 5/6] object-store.h: add write_loose_object() Han Xin
2021-11-12  9:40 ` [PATCH v2 6/6] unpack-objects: unpack large object in stream Han Xin
2021-11-18  7:14   ` Jiang Xin
2021-11-22  3:32 ` [PATCH v3 0/5] unpack large objects " Han Xin
2021-11-29  7:01   ` Han Xin
2021-11-29 19:12     ` Jeff King
2021-11-30  2:57       ` Han Xin
2021-12-03  9:35   ` [PATCH v4 " Han Xin
2021-12-07 16:18     ` Derrick Stolee
2021-12-10 10:34     ` [PATCH v5 0/6] unpack large blobs " Han Xin
2021-12-17 11:26       ` Han Xin
2021-12-21 11:51         ` [PATCH v7 0/5] " Han Xin
2021-12-21 11:51         ` [PATCH v7 1/5] unpack-objects.c: add dry_run mode for get_data() Han Xin
2021-12-21 14:09           ` Ævar Arnfjörð Bjarmason
2021-12-21 14:43             ` René Scharfe
2021-12-21 15:04               ` Ævar Arnfjörð Bjarmason
2021-12-22 11:15               ` Jiang Xin
2021-12-22 11:29             ` Jiang Xin
2021-12-31  3:06           ` Jiang Xin
2021-12-21 11:51         ` [PATCH v7 2/5] object-file API: add a format_object_header() function Han Xin
2021-12-21 14:30           ` René Scharfe
2022-02-01 14:28             ` C99 %z (was: [PATCH v7 2/5] object-file API: add a format_object_header() function) Ævar Arnfjörð Bjarmason
2021-12-31  3:12           ` [PATCH v7 2/5] object-file API: add a format_object_header() function Jiang Xin
2021-12-21 11:51         ` [PATCH v7 3/5] object-file.c: refactor write_loose_object() to reuse in stream version Han Xin
2021-12-21 14:16           ` Ævar Arnfjörð Bjarmason
2021-12-22 12:02             ` Jiang Xin
2021-12-21 11:52         ` [PATCH v7 4/5] object-file.c: add "write_stream_object_file()" to support read in stream Han Xin
2021-12-21 14:20           ` Ævar Arnfjörð Bjarmason
2021-12-21 15:05             ` Ævar Arnfjörð Bjarmason
2021-12-21 11:52         ` [PATCH v7 5/5] unpack-objects: unpack_non_delta_entry() read data in a stream Han Xin
2021-12-21 15:06           ` Ævar Arnfjörð Bjarmason
2021-12-31  3:19           ` Jiang Xin
2022-01-08  8:54         ` [PATCH v8 0/6] unpack large blobs in stream Han Xin
2022-01-20 11:21           ` [PATCH v9 0/5] " Han Xin
2022-02-01 21:24             ` Ævar Arnfjörð Bjarmason
2022-02-02  8:32               ` Han Xin
2022-02-02 10:59                 ` Ævar Arnfjörð Bjarmason
2022-02-04 14:07             ` [PATCH v10 0/6] unpack-objects: support streaming large objects to disk Ævar Arnfjörð Bjarmason
2022-02-04 14:07               ` [PATCH v10 1/6] unpack-objects: low memory footprint for get_data() in dry_run mode Ævar Arnfjörð Bjarmason
2022-02-04 14:07               ` [PATCH v10 2/6] object-file.c: do fsync() and close() before post-write die() Ævar Arnfjörð Bjarmason
2022-02-04 14:07               ` [PATCH v10 3/6] object-file.c: refactor write_loose_object() to several steps Ævar Arnfjörð Bjarmason
2022-02-04 14:07               ` [PATCH v10 4/6] object-file.c: add "stream_loose_object()" to handle large object Ævar Arnfjörð Bjarmason
2022-02-04 14:07               ` [PATCH v10 5/6] core doc: modernize core.bigFileThreshold documentation Ævar Arnfjörð Bjarmason
2022-02-04 14:07               ` [PATCH v10 6/6] unpack-objects: use stream_loose_object() to unpack large objects Ævar Arnfjörð Bjarmason
2022-03-19  0:23               ` [PATCH v11 0/8] unpack-objects: support streaming blobs to disk Ævar Arnfjörð Bjarmason
2022-03-19  0:23                 ` [PATCH v11 1/8] unpack-objects: low memory footprint for get_data() in dry_run mode Ævar Arnfjörð Bjarmason
2022-03-19  0:23                 ` [PATCH v11 2/8] object-file.c: do fsync() and close() before post-write die() Ævar Arnfjörð Bjarmason
2022-03-19  0:23                 ` [PATCH v11 3/8] object-file.c: refactor write_loose_object() to several steps Ævar Arnfjörð Bjarmason
2022-03-19 10:11                   ` René Scharfe
2022-03-19  0:23                 ` [PATCH v11 4/8] object-file.c: factor out deflate part of write_loose_object() Ævar Arnfjörð Bjarmason
2022-03-19  0:23                 ` [PATCH v11 5/8] object-file.c: add "stream_loose_object()" to handle large object Ævar Arnfjörð Bjarmason
2022-03-19  0:23                 ` [PATCH v11 6/8] core doc: modernize core.bigFileThreshold documentation Ævar Arnfjörð Bjarmason
2022-03-19  0:23                 ` [PATCH v11 7/8] unpack-objects: refactor away unpack_non_delta_entry() Ævar Arnfjörð Bjarmason
2022-03-19  0:23                 ` [PATCH v11 8/8] unpack-objects: use stream_loose_object() to unpack large objects Ævar Arnfjörð Bjarmason
2022-03-29 13:56                 ` [PATCH v12 0/8] unpack-objects: support streaming blobs to disk Ævar Arnfjörð Bjarmason
2022-03-29 13:56                   ` [PATCH v12 1/8] unpack-objects: low memory footprint for get_data() in dry_run mode Ævar Arnfjörð Bjarmason
2022-03-29 13:56                   ` [PATCH v12 2/8] object-file.c: do fsync() and close() before post-write die() Ævar Arnfjörð Bjarmason
2022-03-29 13:56                   ` [PATCH v12 3/8] object-file.c: refactor write_loose_object() to several steps Ævar Arnfjörð Bjarmason
2022-03-30  7:13                     ` Han Xin
2022-03-30 17:34                       ` Ævar Arnfjörð Bjarmason
2022-03-29 13:56                   ` [PATCH v12 4/8] object-file.c: factor out deflate part of write_loose_object() Ævar Arnfjörð Bjarmason
2022-03-29 13:56                   ` [PATCH v12 5/8] object-file.c: add "stream_loose_object()" to handle large object Ævar Arnfjörð Bjarmason
2022-03-31 19:54                     ` Neeraj Singh
2022-03-29 13:56                   ` [PATCH v12 6/8] core doc: modernize core.bigFileThreshold documentation Ævar Arnfjörð Bjarmason
2022-03-29 13:56                   ` [PATCH v12 7/8] unpack-objects: refactor away unpack_non_delta_entry() Ævar Arnfjörð Bjarmason
2022-03-30 19:40                     ` René Scharfe
2022-03-31 12:42                       ` Ævar Arnfjörð Bjarmason
2022-03-31 16:38                         ` René Scharfe
2022-03-29 13:56                   ` [PATCH v12 8/8] unpack-objects: use stream_loose_object() to unpack large objects Ævar Arnfjörð Bjarmason
2022-06-04 10:10                   ` [PATCH v13 0/7] unpack-objects: support streaming blobs to disk Ævar Arnfjörð Bjarmason
2022-06-04 10:10                     ` [PATCH v13 1/7] unpack-objects: low memory footprint for get_data() in dry_run mode Ævar Arnfjörð Bjarmason
2022-06-06 18:35                       ` Junio C Hamano
2022-06-09  4:10                         ` Han Xin
2022-06-09 18:27                           ` Junio C Hamano
2022-06-10  1:50                             ` Han Xin
2022-06-10  2:05                               ` Ævar Arnfjörð Bjarmason
2022-06-10 12:04                                 ` Han Xin
2022-06-04 10:10                     ` [PATCH v13 2/7] object-file.c: do fsync() and close() before post-write die() Ævar Arnfjörð Bjarmason
2022-06-06 18:45                       ` Junio C Hamano
2022-06-04 10:10                     ` [PATCH v13 3/7] object-file.c: refactor write_loose_object() to several steps Ævar Arnfjörð Bjarmason
2022-06-04 10:10                     ` [PATCH v13 4/7] object-file.c: factor out deflate part of write_loose_object() Ævar Arnfjörð Bjarmason
2022-06-04 10:10                     ` [PATCH v13 5/7] object-file.c: add "stream_loose_object()" to handle large object Ævar Arnfjörð Bjarmason
2022-06-06 19:44                       ` Junio C Hamano
2022-06-06 20:02                         ` Junio C Hamano
2022-06-09  6:04                           ` Han Xin
2022-06-09  6:14                         ` Han Xin
2022-06-07 19:53                       ` Neeraj Singh
2022-06-08 15:34                         ` Junio C Hamano
2022-06-09  3:05                         ` [RFC PATCH] object-file.c: batched disk flushes for stream_loose_object() Han Xin
2022-06-09  7:35                           ` Neeraj Singh
2022-06-09  9:30                           ` Johannes Schindelin
2022-06-10 12:55                             ` Han Xin
2022-06-04 10:10                     ` [PATCH v13 6/7] core doc: modernize core.bigFileThreshold documentation Ævar Arnfjörð Bjarmason
2022-06-06 19:50                       ` Junio C Hamano
2022-06-04 10:10                     ` [PATCH v13 7/7] unpack-objects: use stream_loose_object() to unpack large objects Ævar Arnfjörð Bjarmason
2022-06-10 14:46                     ` [PATCH v14 0/7] unpack-objects: support streaming blobs to disk Han Xin
2022-06-10 14:46                       ` [PATCH v14 1/7] unpack-objects: low memory footprint for get_data() in dry_run mode Han Xin
2022-06-10 14:46                       ` [PATCH v14 2/7] object-file.c: do fsync() and close() before post-write die() Han Xin
2022-06-10 21:10                         ` René Scharfe
2022-06-10 21:33                           ` Junio C Hamano
2022-06-11  1:50                             ` Han Xin
2022-06-10 14:46                       ` [PATCH v14 3/7] object-file.c: refactor write_loose_object() to several steps Han Xin
2022-06-10 14:46                       ` [PATCH v14 4/7] object-file.c: factor out deflate part of write_loose_object() Han Xin
2022-06-10 14:46                       ` [PATCH v14 5/7] object-file.c: add "stream_loose_object()" to handle large object Han Xin
2022-06-10 14:46                       ` [PATCH v14 6/7] core doc: modernize core.bigFileThreshold documentation Han Xin
2022-06-10 21:01                         ` Junio C Hamano
2022-06-10 14:46                       ` [PATCH v14 7/7] unpack-objects: use stream_loose_object() to unpack large objects Han Xin
2022-06-11  2:44                       ` [PATCH v15 0/6] unpack-objects: support streaming blobs to disk Han Xin
2022-06-11  2:44                         ` [PATCH v15 1/6] unpack-objects: low memory footprint for get_data() in dry_run mode Han Xin
2022-06-11  2:44                         ` [PATCH v15 2/6] object-file.c: refactor write_loose_object() to several steps Han Xin
2022-06-11  2:44                         ` [PATCH v15 3/6] object-file.c: factor out deflate part of write_loose_object() Han Xin
2022-06-11  2:44                         ` [PATCH v15 4/6] object-file.c: add "stream_loose_object()" to handle large object Han Xin
2022-06-11  2:44                         ` [PATCH v15 5/6] core doc: modernize core.bigFileThreshold documentation Han Xin
2022-06-11  2:44                         ` [PATCH v15 6/6] unpack-objects: use stream_loose_object() to unpack large objects Han Xin
2022-07-01  2:01                           ` Junio C Hamano
2022-05-20  3:05                 ` [PATCH 0/1] unpack-objects: low memory footprint for get_data() in dry_run mode Han Xin
2022-05-20  3:05                   ` [PATCH 1/1] " Han Xin
2022-01-20 11:21           ` [PATCH v9 1/5] " Han Xin
2022-01-20 11:21           ` [PATCH v9 2/5] object-file.c: refactor write_loose_object() to several steps Han Xin
2022-01-20 11:21           ` [PATCH v9 3/5] object-file.c: add "stream_loose_object()" to handle large object Han Xin
2022-01-20 11:21           ` [PATCH v9 4/5] unpack-objects: unpack_non_delta_entry() read data in a stream Han Xin
2022-01-20 11:21           ` [PATCH v9 5/5] object-file API: add a format_object_header() function Han Xin
2022-01-08  8:54         ` [PATCH v8 1/6] unpack-objects: low memory footprint for get_data() in dry_run mode Han Xin
2022-01-08 12:28           ` René Scharfe
2022-01-11 10:41             ` Han Xin
2022-01-08  8:54         ` [PATCH v8 2/6] object-file.c: refactor write_loose_object() to several steps Han Xin
2022-01-08 12:28           ` René Scharfe
2022-01-11 10:33             ` Han Xin
2022-01-08  8:54         ` [PATCH v8 3/6] object-file.c: remove the slash for directory_size() Han Xin
2022-01-08 17:24           ` René Scharfe
2022-01-11 10:14             ` Han Xin
2022-01-08  8:54         ` [PATCH v8 4/6] object-file.c: add "stream_loose_object()" to handle large object Han Xin
2022-01-08  8:54         ` [PATCH v8 5/6] unpack-objects: unpack_non_delta_entry() read data in a stream Han Xin
2022-01-08  8:54         ` [PATCH v8 6/6] object-file API: add a format_object_header() function Han Xin
2021-12-17 11:26       ` [PATCH v6 1/6] object-file.c: release strbuf in write_loose_object() Han Xin
2021-12-17 19:28         ` René Scharfe
2021-12-18  0:09           ` Junio C Hamano
2021-12-17 11:26       ` [PATCH v6 2/6] object-file.c: refactor object header generation into a function Han Xin
2021-12-20 12:10         ` [RFC PATCH] object-file API: add a format_loose_header() function Ævar Arnfjörð Bjarmason
2021-12-20 12:48           ` Philip Oakley
2021-12-20 22:25           ` Junio C Hamano
2021-12-21  1:42             ` Ævar Arnfjörð Bjarmason
2021-12-21  2:11               ` Junio C Hamano
2021-12-21  2:27                 ` Ævar Arnfjörð Bjarmason
2021-12-21 11:43           ` Han Xin
2021-12-17 11:26       ` [PATCH v6 3/6] object-file.c: refactor write_loose_object() to reuse in stream version Han Xin
2021-12-17 11:26       ` [PATCH v6 4/6] object-file.c: make "write_object_file_flags()" to support read in stream Han Xin
2021-12-17 22:52         ` René Scharfe
2021-12-17 11:26       ` [PATCH v6 5/6] unpack-objects.c: add dry_run mode for get_data() Han Xin
2021-12-17 21:22         ` René Scharfe
2021-12-17 11:26       ` [PATCH v6 6/6] unpack-objects: unpack_non_delta_entry() read data in a stream Han Xin
2021-12-10 10:34     ` [PATCH v5 1/6] object-file: refactor write_loose_object() to support read from stream Han Xin
2021-12-10 10:34     ` [PATCH v5 2/6] object-file.c: handle undetermined oid in write_loose_object() Han Xin
2021-12-13  7:32       ` Ævar Arnfjörð Bjarmason
2021-12-10 10:34     ` [PATCH v5 3/6] object-file.c: read stream in a loop " Han Xin
2021-12-10 10:34     ` [PATCH v5 4/6] unpack-objects.c: add dry_run mode for get_data() Han Xin
2021-12-10 10:34     ` [PATCH v5 5/6] object-file.c: make "write_object_file_flags()" to support "HASH_STREAM" Han Xin
2021-12-10 10:34     ` [PATCH v5 6/6] unpack-objects: unpack_non_delta_entry() read data in a stream Han Xin
2021-12-13  8:05       ` Ævar Arnfjörð Bjarmason
2021-12-03  9:35   ` [PATCH v4 1/5] object-file: refactor write_loose_object() to read buffer from stream Han Xin
2021-12-03 13:28     ` Ævar Arnfjörð Bjarmason
2021-12-06  2:07       ` Han Xin
2021-12-03  9:35   ` [PATCH v4 2/5] object-file.c: handle undetermined oid in write_loose_object() Han Xin
2021-12-03 13:21     ` Ævar Arnfjörð Bjarmason
2021-12-06  2:51       ` Han Xin
2021-12-03 13:41     ` Ævar Arnfjörð Bjarmason
2021-12-06  3:12       ` Han Xin
2021-12-03  9:35   ` [PATCH v4 3/5] object-file.c: read stream in a loop " Han Xin
2021-12-03  9:35   ` [PATCH v4 4/5] unpack-objects.c: add dry_run mode for get_data() Han Xin
2021-12-03 13:59     ` Ævar Arnfjörð Bjarmason
2021-12-06  3:20       ` Han Xin
2021-12-03  9:35   ` [PATCH v4 5/5] unpack-objects: unpack_non_delta_entry() read data in a stream Han Xin
2021-12-03 13:07     ` Ævar Arnfjörð Bjarmason
2021-12-07  6:42       ` Han Xin
2021-12-03 13:54     ` Ævar Arnfjörð Bjarmason
2021-12-07  6:17       ` Han Xin
2021-12-03 14:05     ` Ævar Arnfjörð Bjarmason
2021-12-07  6:48       ` Han Xin
2021-11-22  3:32 ` [PATCH v3 1/5] object-file: refactor write_loose_object() to read buffer from stream Han Xin
2021-11-23 23:24   ` Junio C Hamano
2021-11-24  9:00     ` Han Xin
2021-11-22  3:32 ` [PATCH v3 2/5] object-file.c: handle undetermined oid in write_loose_object() Han Xin
2021-11-29 15:10   ` Derrick Stolee
2021-11-29 20:44     ` Junio C Hamano
2021-11-29 22:18       ` Derrick Stolee
2021-11-30  3:23         ` Han Xin
2021-11-22  3:32 ` [PATCH v3 3/5] object-file.c: read stream in a loop " Han Xin
2021-11-22  3:32 ` [PATCH v3 4/5] unpack-objects.c: add dry_run mode for get_data() Han Xin
2021-11-22  3:32 ` [PATCH v3 5/5] unpack-objects: unpack_non_delta_entry() read data in a stream Han Xin
2021-11-29 17:37   ` Derrick Stolee
2021-11-30 13:49     ` Han Xin
2021-11-30 18:38       ` Derrick Stolee
2021-12-01 20:37         ` "git hyperfine" (was: [PATCH v3 5/5] unpack-objects[...]) Ævar Arnfjörð Bjarmason
2021-12-02  7:33         ` [PATCH v3 5/5] unpack-objects: unpack_non_delta_entry() read data in a stream Han Xin
2021-12-02 13:53           ` Derrick Stolee

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