/*
 * histogram.cpp
 *
 *  Created on: Mar 2, 2010
 *      Author: sears
 */

#include "../tcpclient.h"
#include "../network.h"
#include "../datatuple.h"

void usage(char * argv[]) {
	fprintf(stderr, "usage %s [n] [host [port]]\n", argv[0]);
}
#include "util_main.h"
int main(int argc, char * argv[]) {
	unsigned long long count = 3;
	if(argc > 1) {
		char * end;
		unsigned long long n = strtoull(argv[1], &end, 10);
		if(argv[1][0] && !*end) {
			count = n;
			argc--;
			argv++;
		}
	}
	logstore_handle_t * l = util_open_conn(argc, argv);

//    datatuple * ret
    uint8_t rcode = logstore_client_op_returns_many(l, OP_STAT_HISTOGRAM, NULL, NULL, count);

    if(opiserror(rcode)) {
    	fprintf(stderr, "Histogram request returned logstore error code %d\n", rcode);
    	perror("Histogram generation failed."); return 3;
    } else {
    	datatuple *ret;
    	bool first = true;
    	while(( ret = logstore_client_next_tuple(l) )) {
    		if(first) {
    			assert(ret->keylen() == sizeof(uint64_t));
    			uint64_t stride = *(uint64_t*)ret->key();
    			printf("Stride: %lld\n", (long long)stride);
    			first = false;
    		} else {
    			assert(ret->key()[ret->keylen()-1] == 0); // check for null terminator.
    			printf("\t%s\n", (char*)ret->key());
    		}
    		datatuple::freetuple(ret);
    	}
    }

    logstore_client_close(l);
    return 0;
}