diff options
| author | Kotresh HR <khiremat@redhat.com> | 2017-06-28 05:09:12 -0400 |
|---|---|---|
| committer | Niels de Vos <ndevos@redhat.com> | 2017-06-30 08:16:57 +0000 |
| commit | 292b4e42fdc023e307fde35e189285040d4b9cdd (patch) | |
| tree | 1c91585e4a9c4bd3871666622f8fe5f158c67ec0 /libglusterfs/src/common-utils.h | |
| parent | d95535bae2d200c2210feac7568b1fdbf6f545a9 (diff) | |
contrib/xxhash: Add xxhash library
xxhash is a faster non-cryptographic hash.
https://github.com/Cyan4973/xxHash
Release Taken: "xxHash v0.6.2"
--------------
Files added:
contrib/xxhash/xxhash.c
contrib/xxhash/xxhash.h
contrib/xxhash/xxhsum.c
Modifications to source:
------------------------
Following functions and data types got 'GF_' prefix
as below to avoid any form of name collisions in future.
---- Functions ----
GF_XXH_versionNumber
GF_XXH32
GF_XXH32_createState
GF_XXH32_freeState
GF_XXH32_copyState
GF_XXH32_reset
GF_XXH32_update
GF_XXH32_digest
GF_XXH32_canonicalFromHash
GF_XXH32_hashFromCanonical
GF_XXH64
GF_XXH64_createState
GF_XXH64_freeState
GF_XXH64_copyState
GF_XXH64_reset
GF_XXH64_update
GF_XXH64_digest
GF_XXH64_canonicalFromHash
GF_XXH64_hashFromCanonical
---- Data Types ----
GF_XXH_errorcode
GF_XXH32_state_t*
GF_XXH32_canonical_t*
GF_XXH32_hash_t
GF_XXH64_state_t*
GF_XXH64_canonical_t*
GF_XXH64_hash_t
It is linked with libglusterfs.so. A wrapper
funtion is also added for the easy usage in
common-utils.c.
xxhash can be used for the all the usecases where
a faster non-cryptographic hash is required.
gfid to path infra would be using this for now.
NOTE:
----
The gluster coding guidelines check is ignored
as maintaining it further would be difficult.
Updates: #253
Change-Id: Ib143f90d91d4ee99864a10246d5983e92900173b
Signed-off-by: Kotresh HR <khiremat@redhat.com>
Reviewed-on: https://review.gluster.org/17641
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Diffstat (limited to 'libglusterfs/src/common-utils.h')
| -rw-r--r-- | libglusterfs/src/common-utils.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libglusterfs/src/common-utils.h b/libglusterfs/src/common-utils.h index 6bd24179592..c3c5ec77350 100644 --- a/libglusterfs/src/common-utils.h +++ b/libglusterfs/src/common-utils.h @@ -113,6 +113,9 @@ void trap (void); /* Default value of signing waiting time to sign a file for bitrot */ #define SIGNING_TIMEOUT "120" +/* xxhash */ +#define GF_XXH64_DIGEST_LENGTH 8 + /* Shard */ #define GF_XATTR_SHARD_FILE_SIZE "trusted.glusterfs.shard.file-size" #define SHARD_ROOT_GFID "be318638-e8a0-4c6d-977d-7a937aa84806" @@ -823,6 +826,8 @@ int gf_get_hostname_from_ip (char *client_ip, char **hostname); gf_boolean_t gf_is_local_addr (char *hostname); gf_boolean_t gf_is_same_address (char *host1, char *host2); void md5_wrapper(const unsigned char *data, size_t len, char *md5); +void gf_xxh64_wrapper(const unsigned char *data, size_t len, + unsigned long long seed, char *xxh64); int gf_set_timestamp (const char *src, const char* dest); int gf_thread_create (pthread_t *thread, const pthread_attr_t *attr, |