Extend XINFO STREAM output
Introducing XINFO STREAM <key> FULL
This commit is contained in:
Guy Benoish
parent
3e738c8a6c
commit
1e2aee3919
226
src/t_stream.c
226
src/t_stream.c
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@ -2475,16 +2475,200 @@ void xtrimCommand(client *c) {
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addReplyLongLong(c,deleted);
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}
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/* Helper function for xinfoCommand.
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* Handles the variants of XINFO STREAM */
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void xinfoReplyWithStreamInfo(client *c, stream *s) {
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int full = 1;
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long long count = 0;
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robj **optv = c->argv + 3; /* Options start after XINFO STREAM <key> */
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int optc = c->argc - 3;
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/* Parse options. */
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if (optc == 0) {
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full = 0;
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} else {
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/* Valid options are [FULL] or [FULL COUNT <count>] */
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if (optc != 1 && optc != 3) {
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addReplySubcommandSyntaxError(c);
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return;
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}
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/* First option must be "FULL" */
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if (strcasecmp(optv[0]->ptr,"full")) {
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addReplySubcommandSyntaxError(c);
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return;
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}
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if (optc == 3) {
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/* First option must be "FULL" */
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if (strcasecmp(optv[1]->ptr,"count")) {
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addReplySubcommandSyntaxError(c);
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return;
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}
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if (getLongLongFromObjectOrReply(c,optv[2],&count,NULL) == C_ERR)
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return;
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if (count < 0) count = 0;
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}
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}
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addReplyMapLen(c,full ? 6 : 7);
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addReplyBulkCString(c,"length");
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addReplyLongLong(c,s->length);
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addReplyBulkCString(c,"radix-tree-keys");
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addReplyLongLong(c,raxSize(s->rax));
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addReplyBulkCString(c,"radix-tree-nodes");
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addReplyLongLong(c,s->rax->numnodes);
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addReplyBulkCString(c,"last-generated-id");
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addReplyStreamID(c,&s->last_id);
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if (!full) {
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/* XINFO STREAM <key> */
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addReplyBulkCString(c,"groups");
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addReplyLongLong(c,s->cgroups ? raxSize(s->cgroups) : 0);
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/* To emit the first/last entry we use streamReplyWithRange(). */
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int emitted;
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streamID start, end;
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start.ms = start.seq = 0;
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end.ms = end.seq = UINT64_MAX;
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addReplyBulkCString(c,"first-entry");
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emitted = streamReplyWithRange(c,s,&start,&end,1,0,NULL,NULL,
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STREAM_RWR_RAWENTRIES,NULL);
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if (!emitted) addReplyNull(c);
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addReplyBulkCString(c,"last-entry");
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emitted = streamReplyWithRange(c,s,&start,&end,1,1,NULL,NULL,
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STREAM_RWR_RAWENTRIES,NULL);
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if (!emitted) addReplyNull(c);
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} else {
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/* XINFO STREAM <key> FULL [COUNT <count>] */
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/* Stream entries */
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addReplyBulkCString(c,"entries");
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streamReplyWithRange(c,s,NULL,NULL,count,0,NULL,NULL,0,NULL);
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/* Consumer groups */
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addReplyBulkCString(c,"groups");
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if (s->cgroups == NULL) {
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addReplyArrayLen(c,0);
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} else {
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addReplyArrayLen(c,raxSize(s->cgroups));
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raxIterator ri_cgroups;
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raxStart(&ri_cgroups,s->cgroups);
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raxSeek(&ri_cgroups,"^",NULL,0);
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while(raxNext(&ri_cgroups)) {
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streamCG *cg = ri_cgroups.data;
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addReplyMapLen(c,5);
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/* Name */
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addReplyBulkCString(c,"name");
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addReplyBulkCBuffer(c,ri_cgroups.key,ri_cgroups.key_len);
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/* Last delivered ID */
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addReplyBulkCString(c,"last-delivered-id");
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addReplyStreamID(c,&cg->last_id);
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/* Group PEL count */
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addReplyBulkCString(c,"pel-count");
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addReplyLongLong(c,raxSize(cg->pel));
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/* Group PEL */
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addReplyBulkCString(c,"pending");
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long long arraylen_cg_pel = 0;
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void *arrayptr_cg_pel = addReplyDeferredLen(c);
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raxIterator ri_cg_pel;
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raxStart(&ri_cg_pel,cg->pel);
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raxSeek(&ri_cg_pel,"^",NULL,0);
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while(raxNext(&ri_cg_pel) && (!count || arraylen_cg_pel < count)) {
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streamNACK *nack = ri_cg_pel.data;
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addReplyArrayLen(c,4);
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/* Entry ID. */
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streamID id;
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streamDecodeID(ri_cg_pel.key,&id);
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addReplyStreamID(c,&id);
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/* Consumer name. */
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addReplyBulkCBuffer(c,nack->consumer->name,
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sdslen(nack->consumer->name));
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/* Last delivery. */
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addReplyLongLong(c,nack->delivery_time);
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/* Number of deliveries. */
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addReplyLongLong(c,nack->delivery_count);
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arraylen_cg_pel++;
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}
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setDeferredArrayLen(c,arrayptr_cg_pel,arraylen_cg_pel);
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raxStop(&ri_cg_pel);
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/* Consumers */
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addReplyBulkCString(c,"consumers");
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addReplyArrayLen(c,raxSize(cg->consumers));
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raxIterator ri_consumers;
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raxStart(&ri_consumers,cg->consumers);
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raxSeek(&ri_consumers,"^",NULL,0);
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while(raxNext(&ri_consumers)) {
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streamConsumer *consumer = ri_consumers.data;
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addReplyMapLen(c,4);
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/* Consumer name */
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addReplyBulkCString(c,"name");
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addReplyBulkCBuffer(c,consumer->name,sdslen(consumer->name));
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/* Seen-time */
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addReplyBulkCString(c,"seen-time");
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addReplyLongLong(c,consumer->seen_time);
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/* Consumer PEL count */
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addReplyBulkCString(c,"pel-count");
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addReplyLongLong(c,raxSize(consumer->pel));
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/* Consumer PEL */
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addReplyBulkCString(c,"pending");
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long long arraylen_cpel = 0;
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void *arrayptr_cpel = addReplyDeferredLen(c);
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raxIterator ri_cpel;
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raxStart(&ri_cpel,consumer->pel);
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raxSeek(&ri_cpel,"^",NULL,0);
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while(raxNext(&ri_cpel) && (!count || arraylen_cpel < count)) {
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streamNACK *nack = ri_cpel.data;
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addReplyArrayLen(c,3);
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/* Entry ID. */
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streamID id;
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streamDecodeID(ri_cpel.key,&id);
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addReplyStreamID(c,&id);
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/* Last delivery. */
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addReplyLongLong(c,nack->delivery_time);
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/* Number of deliveries. */
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addReplyLongLong(c,nack->delivery_count);
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arraylen_cpel++;
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}
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setDeferredArrayLen(c,arrayptr_cpel,arraylen_cpel);
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raxStop(&ri_cpel);
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}
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raxStop(&ri_consumers);
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}
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raxStop(&ri_cgroups);
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}
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}
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}
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/* XINFO CONSUMERS <key> <group>
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* XINFO GROUPS <key>
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* XINFO STREAM <key>
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* XINFO STREAM <key> [FULL [COUNT <count>]]
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* XINFO HELP. */
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void xinfoCommand(client *c) {
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const char *help[] = {
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"CONSUMERS <key> <groupname> -- Show consumer groups of group <groupname>.",
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"GROUPS <key> -- Show the stream consumer groups.",
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"STREAM <key> -- Show information about the stream.",
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"HELP -- Print this help.",
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"CONSUMERS <key> <groupname> -- Show consumer groups of group <groupname>.",
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"GROUPS <key> -- Show the stream consumer groups.",
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"STREAM <key> [FULL [COUNT <count>]] -- Show information about the stream.",
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"HELP -- Print this help.",
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NULL
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};
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stream *s = NULL;
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@ -2564,36 +2748,10 @@ NULL
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addReplyStreamID(c,&cg->last_id);
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}
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raxStop(&ri);
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} else if (!strcasecmp(opt,"STREAM") && c->argc == 3) {
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/* XINFO STREAM <key> (or the alias XINFO <key>). */
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addReplyMapLen(c,7);
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addReplyBulkCString(c,"length");
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addReplyLongLong(c,s->length);
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addReplyBulkCString(c,"radix-tree-keys");
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addReplyLongLong(c,raxSize(s->rax));
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addReplyBulkCString(c,"radix-tree-nodes");
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addReplyLongLong(c,s->rax->numnodes);
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addReplyBulkCString(c,"groups");
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addReplyLongLong(c,s->cgroups ? raxSize(s->cgroups) : 0);
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addReplyBulkCString(c,"last-generated-id");
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addReplyStreamID(c,&s->last_id);
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/* To emit the first/last entry we us the streamReplyWithRange()
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* API. */
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int count;
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streamID start, end;
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start.ms = start.seq = 0;
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end.ms = end.seq = UINT64_MAX;
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addReplyBulkCString(c,"first-entry");
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count = streamReplyWithRange(c,s,&start,&end,1,0,NULL,NULL,
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STREAM_RWR_RAWENTRIES,NULL);
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if (!count) addReplyNull(c);
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addReplyBulkCString(c,"last-entry");
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count = streamReplyWithRange(c,s,&start,&end,1,1,NULL,NULL,
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STREAM_RWR_RAWENTRIES,NULL);
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if (!count) addReplyNull(c);
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} else if (!strcasecmp(opt,"STREAM")) {
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/* XINFO STREAM <key> [FULL [COUNT <count>]]. */
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xinfoReplyWithStreamInfo(c,s);
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} else {
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addReplySubcommandSyntaxError(c);
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}
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}
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@ -294,6 +294,40 @@ start_server {
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assert {[lindex $reply 0 3] == 2}
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}
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test {XINFO FULL output} {
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r del x
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r XADD x 100 a 1
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r XADD x 101 b 1
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r XADD x 102 c 1
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r XADD x 103 e 1
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r XADD x 104 f 1
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r XGROUP CREATE x g1 0
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r XGROUP CREATE x g2 0
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r XREADGROUP GROUP g1 Alice COUNT 1 STREAMS x >
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r XREADGROUP GROUP g1 Bob COUNT 1 STREAMS x >
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r XREADGROUP GROUP g1 Bob NOACK COUNT 1 STREAMS x >
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r XREADGROUP GROUP g2 Charlie COUNT 4 STREAMS x >
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r XDEL x 103
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set reply [r XINFO STREAM x FULL]
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assert_equal [llength $reply] 12
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assert_equal [lindex $reply 1] 4 ;# stream length
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assert_equal [lindex $reply 9] "{100-0 {a 1}} {101-0 {b 1}} {102-0 {c 1}} {104-0 {f 1}}" ;# entries
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assert_equal [lindex $reply 11 0 1] "g1" ;# first group name
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assert_equal [lindex $reply 11 0 7 0 0] "100-0" ;# first entry in group's PEL
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assert_equal [lindex $reply 11 0 9 0 1] "Alice" ;# first consumer
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assert_equal [lindex $reply 11 0 9 0 7 0 0] "100-0" ;# first entry in first consumer's PEL
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assert_equal [lindex $reply 11 1 1] "g2" ;# second group name
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assert_equal [lindex $reply 11 1 9 0 1] "Charlie" ;# first consumer
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assert_equal [lindex $reply 11 1 9 0 7 0 0] "100-0" ;# first entry in first consumer's PEL
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assert_equal [lindex $reply 11 1 9 0 7 1 0] "101-0" ;# second entry in first consumer's PEL
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set reply [r XINFO STREAM x FULL COUNT 1]
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assert_equal [llength $reply] 12
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assert_equal [lindex $reply 1] 4
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assert_equal [lindex $reply 9] "{100-0 {a 1}}"
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}
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start_server {} {
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set master [srv -1 client]
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set master_host [srv -1 host]
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