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//
// Copyright 2024 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "core/nng_impl.h"
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
extern int nni_tls_sys_init(void);
extern void nni_tls_sys_fini(void);
static bool nni_inited = false;
static int
nni_init_helper(void)
{
int rv;
#ifdef NNG_TEST_LIB
static bool cleanup = false;
if (!cleanup) {
atexit(nng_fini);
cleanup = true;
}
#endif
if (((rv = nni_taskq_sys_init()) != 0) ||
((rv = nni_reap_sys_init()) != 0) ||
((rv = nni_aio_sys_init()) != 0) ||
((rv = nni_tls_sys_init()) != 0)) {
nni_fini();
return (rv);
}
// following never fail
nni_sp_tran_sys_init();
nni_inited = true;
return (0);
}
int
nni_init(void)
{
return (nni_plat_init(nni_init_helper));
}
// accessing the list of parameters
typedef struct nni_init_param {
nni_list_node node;
nng_init_parameter param;
uint64_t value;
#ifdef NNG_TEST_LIB
uint64_t effective;
#endif
} nni_init_param;
static nni_list nni_init_params =
NNI_LIST_INITIALIZER(nni_init_params, nni_init_param, node);
void
nni_init_set_param(nng_init_parameter p, uint64_t value)
{
if (nni_inited) {
// this is paranoia -- if some library code started already
// then we cannot safely change parameters, and modifying the
// list is not thread safe.
return;
}
nni_init_param *item;
NNI_LIST_FOREACH (&nni_init_params, item) {
if (item->param == p) {
item->value = value;
return;
}
}
if ((item = NNI_ALLOC_STRUCT(item)) != NULL) {
item->param = p;
item->value = value;
nni_list_append(&nni_init_params, item);
}
}
uint64_t
nni_init_get_param(nng_init_parameter p, uint64_t default_value)
{
nni_init_param *item;
NNI_LIST_FOREACH (&nni_init_params, item) {
if (item->param == p) {
return (item->value);
}
}
return (default_value);
}
void
nni_init_set_effective(nng_init_parameter p, uint64_t value)
{
#ifdef NNG_TEST_LIB
nni_init_param *item;
NNI_LIST_FOREACH (&nni_init_params, item) {
if (item->param == p) {
item->effective = value;
return;
}
}
if ((item = NNI_ALLOC_STRUCT(item)) != NULL) {
item->param = p;
item->effective = value;
nni_list_append(&nni_init_params, item);
}
#else
NNI_ARG_UNUSED(p);
NNI_ARG_UNUSED(value);
#endif
}
#ifdef NNG_TEST_LIB
uint64_t
nni_init_get_effective(nng_init_parameter p)
{
nni_init_param *item;
NNI_LIST_FOREACH (&nni_init_params, item) {
if (item->param == p) {
return (item->effective);
}
}
return ((uint64_t)-1);
}
#endif
static void
nni_init_params_fini(void)
{
nni_init_param *item;
while ((item = nni_list_first(&nni_init_params)) != NULL) {
nni_list_remove(&nni_init_params, item);
NNI_FREE_STRUCT(item);
}
}
void
nni_fini(void)
{
if (!nni_inited) {
// make sure we discard parameters even if we didn't startup
nni_init_params_fini();
return;
}
nni_sp_tran_sys_fini();
nni_tls_sys_fini();
nni_reap_drain();
nni_aio_sys_fini();
nni_taskq_sys_fini();
nni_reap_sys_fini(); // must be before timer and aio (expire)
nni_id_map_sys_fini();
nni_init_params_fini();
nni_plat_fini();
nni_inited = false;
}
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