55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
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/*
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* histogram.cpp
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*
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* Created on: Mar 2, 2010
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* Author: sears
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*/
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#include "../tcpclient.h"
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#include "../network.h"
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#include "../datatuple.h"
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void usage(char * argv[]) {
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fprintf(stderr, "usage %s [n] [host [port]]\n", argv[0]);
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}
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#include "util_main.h"
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int main(int argc, char * argv[]) {
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unsigned long long count = 3;
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if(argc > 1) {
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char * end;
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unsigned long long n = strtoull(argv[1], &end, 10);
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if(argv[1][0] && !*end) {
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count = n;
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argc--;
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argv++;
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}
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}
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logstore_handle_t * l = util_open_conn(argc, argv);
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// datatuple * ret
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uint8_t rcode = logstore_client_op_returns_many(l, OP_STAT_HISTOGRAM, NULL, NULL, count);
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if(opiserror(rcode)) {
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fprintf(stderr, "Histogram request returned logstore error code %d\n", rcode);
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perror("Histogram generation failed."); return 3;
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} else {
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datatuple *ret;
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bool first = true;
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while(( ret = logstore_client_next_tuple(l) )) {
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if(first) {
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assert(ret->keylen() == sizeof(uint64_t));
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uint64_t stride = *(uint64_t*)ret->key();
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printf("Stride: %lld\n", (long long)stride);
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first = false;
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} else {
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assert(ret->key()[ret->keylen()-1] == 0); // check for null terminator.
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printf("\t%s\n", (char*)ret->key());
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}
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datatuple::freetuple(ret);
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}
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}
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logstore_client_close(l);
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return 0;
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}
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