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Stream & AOF: rewrite stream in correct way

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zhaozhao.zz 2018-10-08 21:23:38 +08:00
parent 5f3adbee33
commit b3e80d2f65
1 changed files with 31 additions and 15 deletions
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46
src/aof.c
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@ -1121,23 +1121,39 @@ int rewriteStreamObject(rio *r, robj *key, robj *o) {
streamID id;
int64_t numfields;
/* Reconstruct the stream data using XADD commands. */
while(streamIteratorGetID(&si,&id,&numfields)) {
/* Emit a two elements array for each item. The first is
* the ID, the second is an array of field-value pairs. */
if (s->length) {
/* Reconstruct the stream data using XADD commands. */
while(streamIteratorGetID(&si,&id,&numfields)) {
/* Emit a two elements array for each item. The first is
* the ID, the second is an array of field-value pairs. */
/* Emit the XADD <key> <id> ...fields... command. */
if (rioWriteBulkCount(r,'*',3+numfields*2) == 0) return 0;
if (rioWriteBulkString(r,"XADD",4) == 0) return 0;
if (rioWriteBulkObject(r,key) == 0) return 0;
if (rioWriteBulkStreamID(r,&id) == 0) return 0;
while(numfields--) {
unsigned char *field, *value;
int64_t field_len, value_len;
streamIteratorGetField(&si,&field,&value,&field_len,&value_len);
if (rioWriteBulkString(r,(char*)field,field_len) == 0) return 0;
if (rioWriteBulkString(r,(char*)value,value_len) == 0) return 0;
/* Emit the XADD <key> <id> ...fields... command. */
if (rioWriteBulkCount(r,'*',3+numfields*2) == 0) return 0;
if (rioWriteBulkString(r,"XADD",4) == 0) return 0;
if (rioWriteBulkObject(r,key) == 0) return 0;
if (rioWriteBulkStreamID(r,&id) == 0) return 0;
while(numfields--) {
unsigned char *field, *value;
int64_t field_len, value_len;
streamIteratorGetField(&si,&field,&value,&field_len,&value_len);
if (rioWriteBulkString(r,(char*)field,field_len) == 0) return 0;
if (rioWriteBulkString(r,(char*)value,value_len) == 0) return 0;
}
}
/* Append XSTREAM SETID after XADD, make sure lastid is correct,
* in case of XDEL lastid. */
if (rioWriteBulkCount(r,'*',4) == 0) return 0;
if (rioWriteBulkString(r,"XSTREAM",7) == 0) return 0;
if (rioWriteBulkString(r,"SETID",5) == 0) return 0;
if (rioWriteBulkObject(r,key) == 0) return 0;
if (rioWriteBulkStreamID(r,&s->last_id) == 0) return 0;
} else {
/* Using XSTREAM CREATE if the stream is empty. */
if (rioWriteBulkCount(r,'*',4) == 0) return 0;
if (rioWriteBulkString(r,"XSTREAM",7) == 0) return 0;
if (rioWriteBulkString(r,"CREATE",6) == 0) return 0;
if (rioWriteBulkObject(r,key) == 0) return 0;
if (rioWriteBulkStreamID(r,&s->last_id) == 0) return 0;
}
/* Create all the stream consumer groups. */