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/*
* Copyright (C) 2022 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
* Wsrep-lib 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, either version 2 of the License, or
* (at your option) any later version.
*
* Wsrep-lib 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 wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config_service_v1.hpp"
#include "service_helpers.hpp"
#include "v26/wsrep_config_service.h"
#include "wsrep/logger.hpp"
#include "wsrep/provider_options.hpp"
#include <cassert>
namespace wsrep_config_service_v1
{
wsrep_config_service_v1_t service{ 0 };
static int map_flags(int flags)
{
int option_flags = 0;
if (flags & WSREP_PARAM_DEPRECATED)
option_flags |= wsrep::provider_options::flag::deprecated;
if (flags & WSREP_PARAM_READONLY)
option_flags |= wsrep::provider_options::flag::readonly;
if (flags & WSREP_PARAM_TYPE_BOOL)
option_flags |= wsrep::provider_options::flag::type_bool;
if (flags & WSREP_PARAM_TYPE_INTEGER)
option_flags |= wsrep::provider_options::flag::type_integer;
if (flags & WSREP_PARAM_TYPE_DOUBLE)
option_flags |= wsrep::provider_options::flag::type_double;
return option_flags;
}
static enum wsrep::provider::status
make_option(wsrep::provider_options* opt, const char* name, const char* val,
int flags)
{
std::unique_ptr<wsrep::provider_options::option_value> value(
new wsrep::provider_options::option_value_string(val));
std::unique_ptr<wsrep::provider_options::option_value> default_value(
new wsrep::provider_options::option_value_string(val));
return opt->set_default(name, std::move(value),
std::move(default_value), flags);
}
static enum wsrep::provider::status
make_option(wsrep::provider_options* opt, const char* name, int64_t val,
int flags)
{
std::unique_ptr<wsrep::provider_options::option_value> value(
new wsrep::provider_options::option_value_int(val));
std::unique_ptr<wsrep::provider_options::option_value> default_value(
new wsrep::provider_options::option_value_int(val));
return opt->set_default(name, std::move(value),
std::move(default_value), flags);
}
static enum wsrep::provider::status
make_option(wsrep::provider_options* opt, const char* name, bool val,
int flags)
{
std::unique_ptr<wsrep::provider_options::option_value> value(
new wsrep::provider_options::option_value_bool(val));
std::unique_ptr<wsrep::provider_options::option_value> default_value(
new wsrep::provider_options::option_value_bool(val));
return opt->set_default(name, std::move(value),
std::move(default_value), flags);
}
static enum wsrep::provider::status
make_option(wsrep::provider_options* opt, const char* name, double val,
int flags)
{
std::unique_ptr<wsrep::provider_options::option_value> value(
new wsrep::provider_options::option_value_double(val));
std::unique_ptr<wsrep::provider_options::option_value> default_value(
new wsrep::provider_options::option_value_double(val));
return opt->set_default(name, std::move(value),
std::move(default_value), flags);
}
wsrep_status_t service_callback(const wsrep_parameter* p, void* context)
{
const int flags = map_flags(p->flags);
enum wsrep::provider::status ret(wsrep::provider::error_unknown);
wsrep::provider_options* options = (wsrep::provider_options*)context;
switch (p->flags & WSREP_PARAM_TYPE_MASK)
{
case WSREP_PARAM_TYPE_BOOL:
ret = make_option(options, p->name, p->value.as_bool, flags);
break;
case WSREP_PARAM_TYPE_INTEGER:
ret = make_option(options, p->name, p->value.as_integer, flags);
break;
case WSREP_PARAM_TYPE_DOUBLE:
ret = make_option(options, p->name, p->value.as_double, flags);
break;
default:
assert((p->flags & WSREP_PARAM_TYPE_MASK) == 0);
ret = make_option(options, p->name, p->value.as_string, flags);
break;
}
if (ret == wsrep::provider::success)
return WSREP_OK;
else
return WSREP_FATAL;
}
} // namespace wsrep_config_service_v1
static int config_service_v1_probe(void* dlh)
{
typedef int (*init_fn)(wsrep_config_service_v1_t*);
typedef void (*deinit_fn)();
return wsrep_impl::service_probe<init_fn>(
dlh, WSREP_CONFIG_SERVICE_INIT_FUNC_V1, "config service v1")
|| wsrep_impl::service_probe<deinit_fn>(
dlh, WSREP_CONFIG_SERVICE_DEINIT_FUNC_V1, "config service v1");
}
static int config_service_v1_init(void* dlh)
{
typedef int (*init_fn)(wsrep_config_service_v1_t*);
return wsrep_impl::service_init<init_fn>(
dlh, WSREP_CONFIG_SERVICE_INIT_FUNC_V1,
&wsrep_config_service_v1::service, "config service v1");
}
static void config_service_v1_deinit(void* dlh)
{
typedef int (*deinit_fn)();
wsrep_impl::service_deinit<deinit_fn>(
dlh, WSREP_CONFIG_SERVICE_DEINIT_FUNC_V1, "config service v1");
}
int wsrep::config_service_v1_fetch(wsrep::provider& provider,
wsrep::provider_options* options)
{
struct wsrep_st* wsrep = (struct wsrep_st*)provider.native();
if (config_service_v1_probe(wsrep->dlh))
{
wsrep::log_warning() << "Provider does not support config service v1";
return 1;
}
if (config_service_v1_init(wsrep->dlh))
{
wsrep::log_warning() << "Failed to initialize config service v1";
return 1;
}
wsrep_status_t ret = wsrep_config_service_v1::service.get_parameters(
wsrep, &wsrep_config_service_v1::service_callback, options);
config_service_v1_deinit(wsrep->dlh);
if (ret != WSREP_OK)
{
return 1;
}
return 0;
}
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