static lcb_error_t
obs_ctxadd(lcb_MULTICMD_CTX *mctx, const lcb_CMDOBSERVE *cmd)
{
const void *hk;
lcb_SIZE nhk;
int vbid;
unsigned maxix;
int ii;
OBSERVECTX *ctx = CTX_FROM_MULTI(mctx);
lcb_t instance = ctx->instance;
mc_CMDQUEUE *cq = &instance->cmdq;
if (LCB_KEYBUF_IS_EMPTY(&cmd->key)) {
return LCB_EMPTY_KEY;
}
if (cq->config == NULL) {
return LCB_CLIENT_ETMPFAIL;
}
if (LCBVB_DISTTYPE(LCBT_VBCONFIG(instance)) != LCBVB_DIST_VBUCKET) {
return LCB_NOT_SUPPORTED;
}
mcreq_extract_hashkey(&cmd->key, &cmd->_hashkey, 24, &hk, &nhk);
vbid = lcbvb_k2vb(cq->config, hk, nhk);
maxix = LCBVB_NREPLICAS(cq->config);
for (ii = -1; ii < (int)maxix; ++ii) {
struct observe_st *rr;
lcb_U16 vb16, klen16;
int ix;
if (ii == -1) {
ix = lcbvb_vbmaster(cq->config, vbid);
if (ix < 0) {
return LCB_NO_MATCHING_SERVER;
}
} else {
ix = lcbvb_vbreplica(cq->config, vbid, ii);
if (ix < 0) {
continue;
}
}
lcb_assert(ix < (int)ctx->nrequests);
rr = ctx->requests + ix;
if (!rr->allocated) {
if (!init_request(rr)) {
return LCB_CLIENT_ENOMEM;
}
}
vb16 = htons((lcb_U16)vbid);
klen16 = htons((lcb_U16)cmd->key.contig.nbytes);
lcb_string_append(&rr->body, &vb16, sizeof vb16);
lcb_string_append(&rr->body, &klen16, sizeof klen16);
lcb_string_append(&rr->body, cmd->key.contig.bytes, cmd->key.contig.nbytes);
ctx->remaining++;
if (cmd->cmdflags & LCB_CMDOBSERVE_F_MASTER_ONLY) {
break;
}
}
return LCB_SUCCESS;
}
static lcb_error_t
obs_ctxadd(lcb_MULTICMD_CTX *mctx, const lcb_CMDBASE *cmdbase)
{
int vbid, srvix_dummy;
unsigned ii;
const lcb_CMDOBSERVE *cmd = (const lcb_CMDOBSERVE *)cmdbase;
OBSERVECTX *ctx = CTX_FROM_MULTI(mctx);
lcb_t instance = ctx->instance;
mc_CMDQUEUE *cq = &instance->cmdq;
lcb_U16 servers_s[4];
const lcb_U16 *servers;
size_t nservers;
if (LCB_KEYBUF_IS_EMPTY(&cmd->key)) {
return LCB_EMPTY_KEY;
}
if (cq->config == NULL) {
return LCB_CLIENT_ETMPFAIL;
}
if (LCBVB_DISTTYPE(LCBT_VBCONFIG(instance)) != LCBVB_DIST_VBUCKET) {
return LCB_NOT_SUPPORTED;
}
mcreq_map_key(cq, &cmd->key, &cmd->_hashkey, 24, &vbid, &srvix_dummy);
if (cmd->servers_) {
servers = cmd->servers_;
nservers = cmd->nservers_;
} else {
nservers = 0;
servers = servers_s;
/* Replicas are always < 4 */
for (ii = 0; ii < LCBVB_NREPLICAS(cq->config) + 1; ii++) {
int ix = lcbvb_vbserver(cq->config, vbid, ii);
if (ix < 0) {
if (ii == 0) {
return LCB_NO_MATCHING_SERVER;
} else {
continue;
}
}
servers_s[nservers++] = ix;
if (cmd->cmdflags & LCB_CMDOBSERVE_F_MASTER_ONLY) {
break; /* Only a single server! */
}
}
}
if (nservers == 0) {
return LCB_NO_MATCHING_SERVER;
}
for (ii = 0; ii < nservers; ii++) {
lcb_string *rr;
lcb_U16 vb16, klen16;
lcb_U16 ix = servers[ii];
lcb_assert(ix < ctx->nrequests);
rr = ctx->requests + ix;
if (0 != lcb_string_reserve(rr, 4 + cmd->key.contig.nbytes)) {
return LCB_CLIENT_ENOMEM;
}
vb16 = htons((lcb_U16)vbid);
klen16 = htons((lcb_U16)cmd->key.contig.nbytes);
lcb_string_append(rr, &vb16, sizeof vb16);
lcb_string_append(rr, &klen16, sizeof klen16);
lcb_string_append(rr, cmd->key.contig.bytes, cmd->key.contig.nbytes);
ctx->remaining++;
}
return LCB_SUCCESS;
}
