[PATCH 1/2] xrow: allow to store tuple metadata in request
Vladimir Davydov
vdavydov.dev at gmail.com
Fri Aug 17 16:34:53 MSK 2018
This patch set allows to store msgpack map with arbitrary keys inside
a request. In particular, this is needed to store vinyl statement flags
in run files.
Needed for #2129
---
src/box/iproto_constants.c | 3 ++-
src/box/iproto_constants.h | 3 ++-
src/box/xrow.c | 13 ++++++++++++-
src/box/xrow.h | 3 +++
4 files changed, 19 insertions(+), 3 deletions(-)
diff --git a/src/box/iproto_constants.c b/src/box/iproto_constants.c
index e35738b4..a8d15cb1 100644
--- a/src/box/iproto_constants.c
+++ b/src/box/iproto_constants.c
@@ -87,6 +87,7 @@ const unsigned char iproto_key_type[IPROTO_KEY_MAX] =
/* 0x27 */ MP_STR, /* IPROTO_EXPR */
/* 0x28 */ MP_ARRAY, /* IPROTO_OPS */
/* 0x29 */ MP_MAP, /* IPROTO_BALLOT */
+ /* 0x2a */ MP_MAP, /* IPROTO_TUPLE_META */
/* }}} */
};
@@ -168,7 +169,7 @@ const char *iproto_key_strs[IPROTO_KEY_MAX] = {
"expression", /* 0x27 */
"operations", /* 0x28 */
"ballot", /* 0x29 */
- NULL, /* 0x2a */
+ "tuple meta", /* 0x2a */
NULL, /* 0x2b */
NULL, /* 0x2c */
NULL, /* 0x2d */
diff --git a/src/box/iproto_constants.h b/src/box/iproto_constants.h
index f282a0b2..404f97a2 100644
--- a/src/box/iproto_constants.h
+++ b/src/box/iproto_constants.h
@@ -78,6 +78,7 @@ enum iproto_key {
IPROTO_EXPR = 0x27, /* EVAL */
IPROTO_OPS = 0x28, /* UPSERT but not UPDATE ops, because of legacy */
IPROTO_BALLOT = 0x29,
+ IPROTO_TUPLE_META = 0x2a,
/* Leave a gap between request keys and response keys */
IPROTO_DATA = 0x30,
IPROTO_ERROR = 0x31,
@@ -96,7 +97,7 @@ enum iproto_ballot_key {
bit(LSN) | bit(SCHEMA_VERSION))
#define IPROTO_DML_BODY_BMAP (bit(SPACE_ID) | bit(INDEX_ID) | bit(LIMIT) |\
bit(OFFSET) | bit(ITERATOR) | bit(INDEX_BASE) |\
- bit(KEY) | bit(TUPLE) | bit(OPS))
+ bit(KEY) | bit(TUPLE) | bit(OPS) | bit(TUPLE_META))
static inline bool
xrow_header_has_key(const char *pos, const char *end)
diff --git a/src/box/xrow.c b/src/box/xrow.c
index 269a6e68..7a35d0db 100644
--- a/src/box/xrow.c
+++ b/src/box/xrow.c
@@ -532,6 +532,10 @@ error:
request->ops = value;
request->ops_end = data;
break;
+ case IPROTO_TUPLE_META:
+ request->tuple_meta = value;
+ request->tuple_meta_end = data;
+ break;
default:
break;
}
@@ -585,7 +589,8 @@ xrow_encode_dml(const struct request *request, struct iovec *iov)
const int MAP_LEN_MAX = 40;
uint32_t key_len = request->key_end - request->key;
uint32_t ops_len = request->ops_end - request->ops;
- uint32_t len = MAP_LEN_MAX + key_len + ops_len;
+ uint32_t tuple_meta_len = request->tuple_meta_end - request->tuple_meta;
+ uint32_t len = MAP_LEN_MAX + key_len + ops_len + tuple_meta_len;
char *begin = (char *) region_alloc(&fiber()->gc, len);
if (begin == NULL) {
diag_set(OutOfMemory, len, "region_alloc", "begin");
@@ -620,6 +625,12 @@ xrow_encode_dml(const struct request *request, struct iovec *iov)
pos += ops_len;
map_size++;
}
+ if (request->tuple_meta) {
+ pos = mp_encode_uint(pos, IPROTO_TUPLE_META);
+ memcpy(pos, request->tuple_meta, tuple_meta_len);
+ pos += tuple_meta_len;
+ map_size++;
+ }
if (request->tuple) {
pos = mp_encode_uint(pos, IPROTO_TUPLE);
iov[iovcnt].iov_base = (void *) request->tuple;
diff --git a/src/box/xrow.h b/src/box/xrow.h
index 9887382c..47216705 100644
--- a/src/box/xrow.h
+++ b/src/box/xrow.h
@@ -127,6 +127,9 @@ struct request {
/** Upsert operations. */
const char *ops;
const char *ops_end;
+ /** Tuple metadata. */
+ const char *tuple_meta;
+ const char *tuple_meta_end;
/** Base field offset for UPDATE/UPSERT, e.g. 0 for C and 1 for Lua. */
int index_base;
};
--
2.11.0
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