From: Ben Peart <peartben@gmail.com>
To: git@vger.kernel.org
Cc: gitster@pobox.com, benpeart@microsoft.com, pclouds@gmail.com,
johannes.schindelin@gmx.de, David.Turner@twosigma.com,
peff@peff.net
Subject: [PATCH v2 1/6] bswap: add 64 bit endianness helper get_be64
Date: Thu, 18 May 2017 16:13:28 -0400 [thread overview]
Message-ID: <20170518201333.13088-2-benpeart@microsoft.com> (raw)
In-Reply-To: <20170518201333.13088-1-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 | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/compat/bswap.h b/compat/bswap.h
index d47c003544..f89fe7f4b5 100644
--- a/compat/bswap.h
+++ b/compat/bswap.h
@@ -158,6 +158,7 @@ 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)
#else
@@ -170,6 +171,9 @@ static inline uint64_t git_bswap64(uint64_t x)
(*((unsigned char *)(p) + 1) << 16) | \
(*((unsigned char *)(p) + 2) << 8) | \
(*((unsigned char *)(p) + 3) << 0) )
+#define get_be64(p) ( \
+ ((uint64_t)get_be32((unsigned char *)(p) + 0) << 32) | \
+ ((uint64_t)get_be32((unsigned char *)(p) + 4) << 0)
#define put_be32(p, v) do { \
unsigned int __v = (v); \
*((unsigned char *)(p) + 0) = __v >> 24; \
--
2.13.0.windows.1.6.g4597375fc3
next prev parent reply other threads:[~2017-05-18 20:14 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-18 20:13 [PATCH v2 0/6] Fast git status via a file system watcher Ben Peart
2017-05-18 20:13 ` Ben Peart [this message]
2017-05-18 20:13 ` [PATCH v2 2/6] dir: make lookup_untracked() available outside of dir.c Ben Peart
2017-05-18 20:13 ` [PATCH v2 3/6] fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files Ben Peart
2017-05-19 15:33 ` Ben Peart
2017-05-20 10:41 ` Junio C Hamano
2017-05-24 12:30 ` Christian Couder
2017-05-18 20:13 ` [PATCH v2 4/6] fsmonitor: add test cases for fsmonitor extension Ben Peart
2017-05-20 16:55 ` Torsten Bögershausen
2017-05-18 20:13 ` [PATCH v2 5/6] fsmonitor: add documentation for the " Ben Peart
2017-05-20 11:28 ` Junio C Hamano
2017-05-20 12:10 ` Ævar Arnfjörð Bjarmason
2017-05-22 16:18 ` Ben Peart
2017-05-22 17:28 ` Ævar Arnfjörð Bjarmason
2017-05-25 13:49 ` Ben Peart
2017-05-18 20:13 ` [PATCH v2 6/6] fsmonitor: add a sample query-fsmonitor hook script for Watchman Ben Peart
2017-05-24 13:12 ` Christian Couder
2017-05-26 9:47 ` Ævar Arnfjörð Bjarmason
2017-05-26 16:02 ` Ben Peart
2017-05-25 21:05 ` Ævar Arnfjörð Bjarmason
2017-05-24 10:54 ` [PATCH v2 0/6] Fast git status via a file system watcher Christian Couder
2017-05-25 13:55 ` Ben Peart
2017-05-27 6:57 ` Christian Couder
2017-05-30 18:05 ` Ben Peart
2017-05-30 20:33 ` Christian Couder
2017-05-30 23:11 ` Ben Peart
2017-05-31 7:37 ` Christian Couder
2017-05-31 7:59 ` Christian Couder
2017-05-31 13:37 ` Ben Peart
2017-05-31 14:10 ` Ævar Arnfjörð Bjarmason
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