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enh(tmq): add demo for tmq_get_raw_meta

This commit is contained in:
Liu Jicong 2022-06-23 17:26:23 +08:00
parent 14048a5e4c
commit 323ee6b1b0
4 changed files with 8 additions and 4 deletions
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6
examples/c/tmq.c
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@ -27,7 +27,11 @@ static void msg_process(TAOS_RES* msg) {
printf("db: %s\n", tmq_get_db_name(msg));
printf("vg: %d\n", tmq_get_vgroup_id(msg));
if (tmq_get_res_type(msg) == TMQ_RES_TABLE_META) {
printf("meta, skip\n");
void* meta;
int32_t metaLen;
tmq_get_raw_meta(msg, &meta, &metaLen);
printf("meta, len is %d\n", metaLen);
return;
}
while (1) {

2
include/client/taos.h
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@ -261,7 +261,7 @@ enum tmq_res_t {
typedef enum tmq_res_t tmq_res_t;
DLL_EXPORT tmq_res_t tmq_get_res_type(TAOS_RES *res);
DLL_EXPORT int32_t tmq_get_raw_meta(TAOS_RES *res, const void **raw_meta, int32_t *raw_meta_len);
DLL_EXPORT int32_t tmq_get_raw_meta(TAOS_RES *res, void **raw_meta, int32_t *raw_meta_len);
DLL_EXPORT const char *tmq_get_topic_name(TAOS_RES *res);
DLL_EXPORT const char *tmq_get_db_name(TAOS_RES *res);
DLL_EXPORT int32_t tmq_get_vgroup_id(TAOS_RES *res);

2
source/client/src/tmq.c
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@ -1871,7 +1871,7 @@ const char* tmq_get_table_name(TAOS_RES* res) {
return NULL;
}
int32_t tmq_get_raw_meta(TAOS_RES* res, const void** raw_meta, int32_t* raw_meta_len) {
int32_t tmq_get_raw_meta(TAOS_RES* res, void** raw_meta, int32_t* raw_meta_len) {
if (TD_RES_TMQ_META(res)) {
SMqMetaRspObj* pMetaRspObj = (SMqMetaRspObj*)res;
*raw_meta = pMetaRspObj->metaRsp.metaRsp;

2
source/dnode/vnode/src/tq/tq.c
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@ -306,7 +306,7 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
pHead->msgType == TDMT_VND_DROP_STB || pHead->msgType == TDMT_VND_CREATE_TABLE ||
pHead->msgType == TDMT_VND_ALTER_TABLE || pHead->msgType == TDMT_VND_DROP_TABLE ||
pHead->msgType == TDMT_VND_DROP_TTL_TABLE);
// return
tqInfo("fetch meta msg, ver: %ld, type: %d", pHead->version, pHead->msgType);
SMqMetaRsp metaRsp = {0};
metaRsp.reqOffset = pReq->currentOffset;
metaRsp.rspOffset = fetchOffset;