public inbox for git@vger.kernel.org 
 help / color / mirror / Atom feed
From: Ben Peart <benpeart@microsoft•com>
To: benpeart@microsoft•com
Cc: David.Turner@twosigma•com, avarab@gmail•com,
	christian.couder@gmail•com, git@vger•kernel.org,
	gitster@pobox•com, johannes.schindelin@gmx•de, pclouds@gmail•com,
	peff@peff•net
Subject: [PATCH v7 01/12] bswap: add 64 bit endianness helper get_be64
Date: Tue, 19 Sep 2017 15:27:33 -0400	[thread overview]
Message-ID: <20170919192744.19224-2-benpeart@microsoft.com> (raw)
In-Reply-To: <20170919192744.19224-1-benpeart@microsoft.com>

Add a new get_be64 macro to enable 64 bit endian conversions on memory
that may or may not be aligned.

Signed-off-by: Ben Peart <benpeart@microsoft•com>
---
 compat/bswap.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/compat/bswap.h b/compat/bswap.h
index 7d063e9e40..6b22c46214 100644
--- a/compat/bswap.h
+++ b/compat/bswap.h
@@ -158,7 +158,9 @@ static inline uint64_t git_bswap64(uint64_t x)
 
 #define get_be16(p)	ntohs(*(unsigned short *)(p))
 #define get_be32(p)	ntohl(*(unsigned int *)(p))
+#define get_be64(p)	ntohll(*(uint64_t *)(p))
 #define put_be32(p, v)	do { *(unsigned int *)(p) = htonl(v); } while (0)
+#define put_be64(p, v)	do { *(uint64_t *)(p) = htonll(v); } while (0)
 
 #else
 
@@ -178,6 +180,13 @@ static inline uint32_t get_be32(const void *ptr)
 		(uint32_t)p[3] <<  0;
 }
 
+static inline uint64_t get_be64(const void *ptr)
+{
+	const unsigned char *p = ptr;
+	return	(uint64_t)get_be32(p[0]) << 32 |
+		(uint64_t)get_be32(p[4]) <<  0;
+}
+
 static inline void put_be32(void *ptr, uint32_t value)
 {
 	unsigned char *p = ptr;
@@ -187,4 +196,17 @@ static inline void put_be32(void *ptr, uint32_t value)
 	p[3] = value >>  0;
 }
 
+static inline void put_be64(void *ptr, uint64_t value)
+{
+	unsigned char *p = ptr;
+	p[0] = value >> 56;
+	p[1] = value >> 48;
+	p[2] = value >> 40;
+	p[3] = value >> 32;
+	p[4] = value >> 24;
+	p[5] = value >> 16;
+	p[6] = value >>  8;
+	p[7] = value >>  0;
+}
+
 #endif
-- 
2.14.1.windows.1


  reply	other threads:[~2017-09-19 19:28 UTC|newest]

Thread overview: 137+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-10 13:40 [PATCH v5 0/7] Fast git status via a file system watcher Ben Peart
2017-06-10 13:40 ` [PATCH v5 1/7] bswap: add 64 bit endianness helper get_be64 Ben Peart
2017-06-10 13:40 ` [PATCH v5 2/7] dir: make lookup_untracked() available outside of dir.c Ben Peart
2017-06-10 13:40 ` [PATCH v5 3/7] fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files Ben Peart
2017-06-27 15:43   ` Christian Couder
2017-07-03 21:25     ` Ben Peart
2017-06-10 13:40 ` [PATCH v5 4/7] fsmonitor: add test cases for fsmonitor extension Ben Peart
2017-06-27 16:20   ` Christian Couder
2017-07-07 18:50     ` Ben Peart
2017-06-10 13:40 ` [PATCH v5 5/7] fsmonitor: add documentation for the " Ben Peart
2017-06-10 13:40 ` [PATCH v5 6/7] fsmonitor: add a sample query-fsmonitor hook script for Watchman Ben Peart
2017-06-10 13:40 ` [PATCH v5 7/7] fsmonitor: add a performance test Ben Peart
2017-06-10 14:04   ` Ben Peart
2017-06-12 22:04   ` Junio C Hamano
2017-06-14 14:12     ` Ben Peart
2017-06-14 18:36       ` Junio C Hamano
2017-07-07 18:14         ` Ben Peart
2017-07-07 18:35           ` Junio C Hamano
2017-07-07 19:07             ` Ben Peart
2017-07-07 19:33             ` David Turner
2017-07-08  7:19             ` Christian Couder
2017-06-28  5:11 ` [PATCH v5 0/7] Fast git status via a file system watcher Christian Couder
2017-07-10 13:36   ` Ben Peart
2017-07-10 14:40     ` Ben Peart
2017-09-15 19:20 ` [PATCH v6 00/12] " Ben Peart
2017-09-15 19:20   ` [PATCH v6 01/12] bswap: add 64 bit endianness helper get_be64 Ben Peart
2017-09-15 19:20   ` [PATCH v6 02/12] preload-index: add override to enable testing preload-index Ben Peart
2017-09-15 19:20   ` [PATCH v6 03/12] update-index: add a new --force-write-index option Ben Peart
2017-09-15 19:20   ` [PATCH v6 04/12] fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files Ben Peart
2017-09-15 21:35     ` David Turner
2017-09-18 13:07       ` Ben Peart
2017-09-18 13:32         ` David Turner
2017-09-18 13:49           ` Ben Peart
2017-09-15 19:20   ` [PATCH v6 05/12] fsmonitor: add documentation for the fsmonitor extension Ben Peart
2017-09-15 19:43     ` David Turner
2017-09-18 13:27       ` Ben Peart
2017-09-17  8:03     ` Junio C Hamano
2017-09-18 13:29       ` Ben Peart
2017-09-15 19:20   ` [PATCH v6 06/12] ls-files: Add support in ls-files to display the fsmonitor valid bit Ben Peart
2017-09-15 20:34     ` David Turner
2017-09-15 19:20   ` [PATCH v6 07/12] update-index: add fsmonitor support to update-index Ben Peart
2017-09-15 19:20   ` [PATCH v6 08/12] fsmonitor: add a test tool to dump the index extension Ben Peart
2017-09-17  8:02     ` Junio C Hamano
2017-09-18 13:38       ` Ben Peart
2017-09-18 15:43         ` Torsten Bögershausen
2017-09-18 16:28           ` Ben Peart
2017-09-19 14:16             ` Torsten Bögershausen
2017-09-19 15:36               ` Ben Peart
2017-09-15 19:20   ` [PATCH v6 09/12] split-index: disable the fsmonitor extension when running the split index test Ben Peart
2017-09-19 20:43     ` Jonathan Nieder
2017-09-20 17:11       ` Ben Peart
2017-09-20 17:46         ` Jonathan Nieder
2017-09-21  0:05           ` Ben Peart
2017-09-15 19:20   ` [PATCH v6 10/12] fsmonitor: add test cases for fsmonitor extension Ben Peart
2017-09-15 22:00     ` David Turner
2017-09-19 19:32       ` David Turner
2017-09-19 20:30         ` Ben Peart
2017-09-16 15:27     ` Torsten Bögershausen
2017-09-17  5:43       ` [PATCH v1 1/1] test-lint: echo -e (or -E) is not portable tboegi
2017-09-19 20:37         ` Jonathan Nieder
2017-09-20 13:49           ` Torsten Bögershausen
2017-09-22  1:04             ` Junio C Hamano
2017-09-18 14:06       ` [PATCH v6 10/12] fsmonitor: add test cases for fsmonitor extension Ben Peart
2017-09-17  4:47     ` Junio C Hamano
2017-09-18 15:25       ` Ben Peart
2017-09-19 20:34         ` Jonathan Nieder
2017-09-15 19:20   ` [PATCH v6 11/12] fsmonitor: add a sample integration script for Watchman Ben Peart
2017-09-15 19:20   ` [PATCH v6 12/12] fsmonitor: add a performance test Ben Peart
2017-09-15 21:56     ` David Turner
2017-09-18 14:24     ` Johannes Schindelin
2017-09-18 18:19       ` Ben Peart
2017-09-19 15:28         ` Johannes Schindelin
2017-09-19 19:27   ` [PATCH v7 00/12] Fast git status via a file system watcher Ben Peart
2017-09-19 19:27     ` Ben Peart [this message]
2017-09-19 19:27     ` [PATCH v7 02/12] preload-index: add override to enable testing preload-index Ben Peart
2017-09-20 22:06       ` Stefan Beller
2017-09-21  0:02         ` Ben Peart
2017-09-21  0:44           ` Stefan Beller
2017-09-19 19:27     ` [PATCH v7 03/12] update-index: add a new --force-write-index option Ben Peart
2017-09-20  5:47       ` Junio C Hamano
2017-09-20 14:58         ` Ben Peart
2017-09-21  1:46           ` Junio C Hamano
2017-09-21  2:06             ` Ben Peart
2017-09-21  2:18               ` Junio C Hamano
2017-09-21  2:32                 ` Junio C Hamano
2017-09-19 19:27     ` [PATCH v7 04/12] fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files Ben Peart
2017-09-20  2:28       ` Junio C Hamano
2017-09-20 16:19         ` Ben Peart
2017-09-21  2:00           ` Junio C Hamano
2017-09-21  2:24             ` Ben Peart
2017-09-21 14:35               ` Ben Peart
2017-09-22  1:02                 ` Junio C Hamano
2017-09-20  6:23       ` Junio C Hamano
2017-09-20 16:29         ` Ben Peart
2017-09-19 19:27     ` [PATCH v7 05/12] fsmonitor: add documentation for the fsmonitor extension Ben Peart
2017-09-20 10:00       ` Martin Ågren
2017-09-20 17:02         ` Ben Peart
2017-09-20 17:11           ` Martin Ågren
2017-09-19 19:27     ` [PATCH v7 06/12] ls-files: Add support in ls-files to display the fsmonitor valid bit Ben Peart
2017-09-19 19:46       ` David Turner
2017-09-19 20:44         ` Ben Peart
2017-09-19 21:27           ` David Turner
2017-09-19 22:44             ` Ben Peart
2017-09-19 19:27     ` [PATCH v7 07/12] update-index: add fsmonitor support to update-index Ben Peart
2017-09-19 19:27     ` [PATCH v7 08/12] fsmonitor: add a test tool to dump the index extension Ben Peart
2017-09-19 19:27     ` [PATCH v7 09/12] split-index: disable the fsmonitor extension when running the split index test Ben Peart
2017-09-19 19:27     ` [PATCH v7 10/12] fsmonitor: add test cases for fsmonitor extension Ben Peart
2017-09-19 19:27     ` [PATCH v7 11/12] fsmonitor: add a sample integration script for Watchman Ben Peart
2017-09-19 19:27     ` [PATCH v7 12/12] fsmonitor: add a performance test Ben Peart
2017-09-22 16:35     ` [PATCH v8 00/12] Fast git status via a file system watcher Ben Peart
2017-09-22 16:35       ` [PATCH v8 01/12] bswap: add 64 bit endianness helper get_be64 Ben Peart
2017-09-22 23:37         ` Martin Ågren
2017-09-23 23:31           ` Ben Peart
2017-09-24  3:51             ` Jeff King
2017-09-24  3:52             ` Junio C Hamano
2017-09-22 16:35       ` [PATCH v8 02/12] preload-index: add override to enable testing preload-index Ben Peart
2017-09-22 16:35       ` [PATCH v8 03/12] update-index: add a new --force-write-index option Ben Peart
2017-09-22 16:35       ` [PATCH v8 04/12] fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files Ben Peart
2017-09-22 16:35       ` [PATCH v8 05/12] fsmonitor: add documentation for the fsmonitor extension Ben Peart
2017-09-22 16:35       ` [PATCH v8 06/12] ls-files: Add support in ls-files to display the fsmonitor valid bit Ben Peart
2017-09-22 16:35       ` [PATCH v8 07/12] update-index: add fsmonitor support to update-index Ben Peart
2017-09-22 16:35       ` [PATCH v8 08/12] fsmonitor: add a test tool to dump the index extension Ben Peart
2017-09-22 23:37         ` Martin Ågren
2017-09-23 23:33           ` Ben Peart
2017-09-24  3:51             ` Junio C Hamano
2017-09-22 16:35       ` [PATCH v8 09/12] split-index: disable the fsmonitor extension when running the split index test Ben Peart
2017-09-22 16:35       ` [PATCH v8 10/12] fsmonitor: add test cases for fsmonitor extension Ben Peart
2017-09-22 16:35       ` [PATCH v8 11/12] fsmonitor: add a sample integration script for Watchman Ben Peart
2017-09-22 16:35       ` [PATCH v8 12/12] fsmonitor: add a performance test Ben Peart
2017-09-29  2:20       ` [PATCH v8 00/12] Fast git status via a file system watcher Junio C Hamano
2017-09-29 12:07         ` Ben Peart
2017-10-01  8:24           ` Junio C Hamano
2017-10-03 19:48             ` Ben Peart
2017-10-04  2:09               ` Junio C Hamano
2017-10-04  6:38                 ` Alex Vandiver
2017-10-04 12:48                   ` Ben Peart
2017-10-04 12:27                 ` Ben Peart

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170919192744.19224-2-benpeart@microsoft.com \
    --to=benpeart@microsoft$(echo .)com \
    --cc=David.Turner@twosigma$(echo .)com \
    --cc=avarab@gmail$(echo .)com \
    --cc=christian.couder@gmail$(echo .)com \
    --cc=git@vger$(echo .)kernel.org \
    --cc=gitster@pobox$(echo .)com \
    --cc=johannes.schindelin@gmx$(echo .)de \
    --cc=pclouds@gmail$(echo .)com \
    --cc=peff@peff$(echo .)net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox