diff options
| author | Tushar Gohad <tushar.gohad@intel.com> | 2014-09-30 06:35:03 -0700 |
|---|---|---|
| committer | Tushar Gohad <tushar.gohad@intel.com> | 2014-09-30 07:15:16 -0700 |
| commit | 032b57d9b1c7aadc547fccbacf88af786c9067e7 (patch) | |
| tree | f007a6716585434a77de352601a6525428939c7b /include | |
| parent | 6c8d66e68beee67f81812a21cc69d73ff7b2b0b5 (diff) | |
| download | liberasurecode-backend_metadata_adder.tar.gz | |
Add support for custom backend metadatabackend_metadata_adder
A backend may have the need to add custom metadata to the
encoded data/parity fragments, in addition to the
liberasurecode "fragment metadata headers". This patch
gives the ability to a EC backend writer to specify a
"metadata adder" that is taken into account when allocating
output data/parity fragment buffers.
Signed-off-by: Tushar Gohad <tushar.gohad@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/erasurecode/erasurecode_backend.h | 4 | ||||
| -rw-r--r-- | include/erasurecode/erasurecode_helpers.h | 2 | ||||
| -rw-r--r-- | include/erasurecode/erasurecode_preprocessing.h | 1 |
3 files changed, 6 insertions, 1 deletions
diff --git a/include/erasurecode/erasurecode_backend.h b/include/erasurecode/erasurecode_backend.h index a6e4440..956b2f1 100644 --- a/include/erasurecode/erasurecode_backend.h +++ b/include/erasurecode/erasurecode_backend.h @@ -106,6 +106,10 @@ struct ec_backend_common { char soversion[MAX_LEN]; /* EC backend shared library version */ struct ec_backend_op_stubs *ops; /* EC backend stubs */ + int metadata_adder; /* EC backend custom metadata adder - + * metadata_adder bytes are added to + * the fragment size when allocating + * data/parity fragment buffers */ }; /* EC backend definition */ diff --git a/include/erasurecode/erasurecode_helpers.h b/include/erasurecode/erasurecode_helpers.h index e8fddaa..46dc669 100644 --- a/include/erasurecode/erasurecode_helpers.h +++ b/include/erasurecode/erasurecode_helpers.h @@ -118,7 +118,7 @@ void init_fragment_header(char *buf) void *alloc_zeroed_buffer(int size); void *alloc_and_set_buffer(int size, int value); void *check_and_free_buffer(void *buf); -char *alloc_fragment_buffer(int size); +char *alloc_fragment_buffer(ec_backend_t instance, int size); int free_fragment_buffer(char *buf); void *get_aligned_buffer16(int size); int get_aligned_data_size(ec_backend_t instance, int data_len); diff --git a/include/erasurecode/erasurecode_preprocessing.h b/include/erasurecode/erasurecode_preprocessing.h index 7ca891d..0b479c6 100644 --- a/include/erasurecode/erasurecode_preprocessing.h +++ b/include/erasurecode/erasurecode_preprocessing.h @@ -37,6 +37,7 @@ int prepare_fragments_for_encode( int *blocksize); int prepare_fragments_for_decode( + ec_backend_t instance, int k, int m, char **data, char **parity, int *missing_idxs, |