5be84f59e8
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@2451 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/*
|
|
* 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->rawkeylen() == sizeof(uint64_t));
|
|
uint64_t stride = *(uint64_t*)ret->rawkey();
|
|
printf("Stride: %lld\n", (long long)stride);
|
|
first = false;
|
|
} else {
|
|
assert(ret->strippedkey()[ret->strippedkeylen()-1] == 0); // check for null terminator.
|
|
printf("\t%s\n", (char*)ret->strippedkey());
|
|
}
|
|
datatuple::freetuple(ret);
|
|
}
|
|
}
|
|
|
|
logstore_client_close(l);
|
|
return 0;
|
|
}
|