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#include "counters.h"
namespace NMonitoring {
char* PrettyNumShort(i64 val, char* buf, size_t size) {
static const char shorts[] = {' ', 'K', 'M', 'G', 'T', 'P', 'E'};
unsigned i = 0;
i64 major = val;
i64 minor = 0;
const unsigned imax = sizeof(shorts) / sizeof(char);
for (i = 0; i < imax; i++) {
if (major >> 10 == 0)
break;
else {
minor = major - (major >> 10 << 10);
major = major >> 10;
}
}
minor = (minor * 10) >> 10;
if (i == 0 || i >= imax)
*buf = '\0';
else
snprintf(buf, size, "%" PRId64 ".%" PRId64 "%c", major, minor, shorts[i]);
return buf;
}
char* PrettyNum(i64 val, char* buf, size_t size) {
Y_ASSERT(buf);
if (size < 4) {
buf[0] = 0;
return buf;
}
PrettyNumShort(val, buf + 2, size - 3);
if (buf[2] == 0) {
*buf = '\0';
} else {
size_t len = 2 + strnlen(buf + 2, size - 4);
Y_ASSERT(len < size);
buf[0] = ' ';
buf[1] = '(';
buf[len] = ')';
buf[len + 1] = '\0';
}
return buf;
}
}
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