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config_types.cpp
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config_types.cpp
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/*
* Copyright (C) 2011-2013 Garantia Data Ltd.
*
* This file is part of memtier_benchmark.
*
* memtier_benchmark is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2.
*
* memtier_benchmark is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with memtier_benchmark. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "config_types.h"
config_range::config_range(const char *range_str) :
min(0), max(0)
{
assert(range_str != NULL);
char *p = NULL;
min = strtoul(range_str, &p, 10);
if (!p || *p != '-') {
min = max = 0;
return;
}
char *q = NULL;
max = strtoul(p + 1, &q, 10);
if (!q || *q != '\0') {
min = max = 0;
return;
}
}
config_ratio::config_ratio(const char *ratio_str) :
a(0), b(0)
{
assert(ratio_str != NULL);
char *p = NULL;
a = strtoul(ratio_str, &p, 10);
if (!p || *p != ':') {
a = b = 0;
return;
}
char *q = NULL;
b = strtoul(p + 1, &q, 10);
if (!q || *q != '\0') {
a = b = 0;
return;
}
}
config_weight_list::config_weight_list() :
next_size_weight(0)
{
}
config_weight_list::config_weight_list(const config_weight_list& copy) :
next_size_weight(0)
{
for (std::vector<weight_item>::const_iterator i = copy.item_list.begin(); i != copy.item_list.end(); i++) {
const weight_item wi = *i;
item_list.push_back(wi);
}
next_size_iter = item_list.begin();
}
config_weight_list& config_weight_list::operator=(const config_weight_list& rhs)
{
if (this == &rhs)
return *this;
next_size_weight = rhs.next_size_weight;
for (std::vector<weight_item>::const_iterator i = rhs.item_list.begin(); i != rhs.item_list.end(); i++) {
const weight_item wi = *i;
item_list.push_back(wi);
}
next_size_iter = item_list.begin();
return *this;
}
config_weight_list::config_weight_list(const char *str) :
next_size_weight(0)
{
assert(str != NULL);
do {
struct weight_item w;
char *p = NULL;
w.size = strtoul(str, &p, 10);
if (!p || *p != ':') {
item_list.clear();
return;
}
str = p + 1;
w.weight = strtoul(str, &p, 10);
if (!p || (*p != ',' && *p != '\0')) {
item_list.clear();
return;
}
str = p;
if (*str) str++;
item_list.push_back(w);
} while (*str);
next_size_iter = item_list.begin();
}
bool config_weight_list::is_defined(void)
{
if (item_list.size() > 0)
return true;
return false;
}
unsigned int config_weight_list::largest(void)
{
unsigned int largest = 0;
for (std::vector<weight_item>::iterator i = item_list.begin(); i != item_list.end(); i++) {
if (i->size > largest)
largest = i->size;
}
return largest;
}
unsigned int config_weight_list::get_next_size(void)
{
while (next_size_weight >= next_size_iter->weight) {
next_size_iter++;
next_size_weight = 0;
if (next_size_iter == item_list.end()) {
next_size_iter = item_list.begin();
}
}
next_size_weight++;
return next_size_iter->size;
}
const char* config_weight_list::print(char *buf, int buf_len)
{
const char* start = buf;
assert(buf != NULL && buf_len > 0);
*buf = '\0';
for (std::vector<weight_item>::iterator i = item_list.begin(); i != item_list.end(); i++) {
int n = snprintf(buf, buf_len, "%s%u:%u",
i != item_list.begin() ? "," : "", i->size, i->weight);
buf += n;
buf_len -= n;
if (!buf_len)
return NULL;
}
return start;
}