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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Copyright (C) 2016 Red Hat Inc.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version
* 2.1, as published by the Free Software Foundation. See file
* COPYING.
*/
#include <unistd.h>
#include <string.h>
#include <stdarg.h>
#include <iostream>
#include <vector>
#include <list>
#include "config.h"
#include "str_list.h"
static void dashes_to_underscores(const char *input, char *output) {
char c = 0;
char *o = output;
const char *i = input;
// first two characters are copied as-is
*o = *i++;
if (*o++ == '\0')
return;
*o = *i++;
if (*o++ == '\0')
return;
for (; ((c = *i)); ++i) {
if (c == '=') {
strcpy(o, i);
return;
}
if (c == '-')
*o++ = '_';
else
*o++ = c;
}
*o++ = '\0';
}
static int va_ceph_argparse_witharg(std::vector<const char*> &args,
std::vector<const char*>::iterator &i, std::string *ret,
std::ostream &oss, va_list ap) {
const char *first = *i;
char tmp[strlen(first)+1];
dashes_to_underscores(first, tmp);
first = tmp;
// does this argument match any of the possibilities?
while (1) {
const char *a = va_arg(ap, char*);
if (a == NULL)
return 0;
int strlen_a = strlen(a);
char a2[strlen_a+1];
dashes_to_underscores(a, a2);
if (strncmp(a2, first, strlen(a2)) == 0) {
if (first[strlen_a] == '=') {
*ret = first + strlen_a + 1;
i = args.erase(i);
return 1;
}
else if (first[strlen_a] == '\0') {
// find second part (or not)
if (i+1 == args.end()) {
oss << "Option " << *i << " requires an argument." << std::endl;
i = args.erase(i);
return -EINVAL;
}
i = args.erase(i);
*ret = *i;
i = args.erase(i);
return 1;
}
}
}
}
bool crimson::qos_simulation::ceph_argparse_witharg(std::vector<const char*> &args,
std::vector<const char*>::iterator &i, std::string *ret, ...) {
int r;
va_list ap;
va_start(ap, ret);
r = va_ceph_argparse_witharg(args, i, ret, std::cerr, ap);
va_end(ap);
if (r < 0)
_exit(1);
return r != 0;
}
void crimson::qos_simulation::ceph_argparse_early_args(std::vector<const char*>& args, std::string *conf_file_list) {
std::string val;
std::vector<const char *> orig_args = args;
for (std::vector<const char*>::iterator i = args.begin(); i != args.end(); ) {
if (ceph_argparse_witharg(args, i, &val, "--conf", "-c", (char*)NULL)) {
*conf_file_list = val;
}
else {
// ignore
++i;
}
}
return;
}
static bool stobool(const std::string & v) {
return !v.empty () &&
(strcasecmp (v.c_str (), "true") == 0 ||
atoi (v.c_str ()) != 0);
}
int crimson::qos_simulation::parse_config_file(const std::string &fname, sim_config_t &g_conf) {
ConfFile cf;
std::deque<std::string> err;
std::ostringstream warn;
int ret = cf.parse_file(fname.c_str(), &err, &warn);
if (ret) {
// error
return ret;
}
std::string val;
if (!cf.read("global", "server_groups", val))
g_conf.server_groups = std::stoul(val);
if (!cf.read("global", "client_groups", val))
g_conf.client_groups = std::stoul(val);
if (!cf.read("global", "server_random_selection", val))
g_conf.server_random_selection = stobool(val);
if (!cf.read("global", "server_soft_limit", val))
g_conf.server_soft_limit = stobool(val);
if (!cf.read("global", "anticipation_timeout", val))
g_conf.anticipation_timeout = stod(val);
for (unsigned i = 0; i < g_conf.server_groups; i++) {
srv_group_t st;
std::string section = "server." + std::to_string(i);
if (!cf.read(section, "server_count", val))
st.server_count = std::stoul(val);
if (!cf.read(section, "server_iops", val))
st.server_iops = std::stoul(val);
if (!cf.read(section, "server_threads", val))
st.server_threads = std::stoul(val);
g_conf.srv_group.push_back(st);
}
for (unsigned i = 0; i < g_conf.client_groups; i++) {
cli_group_t ct;
std::string section = "client." + std::to_string(i);
if (!cf.read(section, "client_count", val))
ct.client_count = std::stoul(val);
if (!cf.read(section, "client_wait", val))
ct.client_wait = std::chrono::seconds(std::stoul(val));
if (!cf.read(section, "client_total_ops", val))
ct.client_total_ops = std::stoul(val);
if (!cf.read(section, "client_server_select_range", val))
ct.client_server_select_range = std::stoul(val);
if (!cf.read(section, "client_iops_goal", val))
ct.client_iops_goal = std::stoul(val);
if (!cf.read(section, "client_outstanding_ops", val))
ct.client_outstanding_ops = std::stoul(val);
if (!cf.read(section, "client_reservation", val))
ct.client_reservation = std::stod(val);
if (!cf.read(section, "client_limit", val))
ct.client_limit = std::stod(val);
if (!cf.read(section, "client_weight", val))
ct.client_weight = std::stod(val);
if (!cf.read(section, "client_req_cost", val))
ct.client_req_cost = std::stoul(val);
g_conf.cli_group.push_back(ct);
}
return 0;
}
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