Sergey Sharybin
a12a8a71bb
The goal is to solve confusion of the "All rights reserved" for licensing
code under an open-source license.
The phrase "All rights reserved" comes from a historical convention that
required this phrase for the copyright protection to apply. This convention
is no longer relevant.
However, even though the phrase has no meaning in establishing the copyright
it has not lost meaning in terms of licensing.
This change makes it so code under the Blender Foundation copyright does
not use "all rights reserved". This is also how the GPL license itself
states how to apply it to the source code:
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software ...
This change does not change copyright notice in cases when the copyright
is dual (BF and an author), or just an author of the code. It also does
mot change copyright which is inherited from NaN Holding BV as it needs
some further investigation about what is the proper way to handle it.
145 lines
3.3 KiB
C
145 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2018 Blender Foundation */
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/** \file
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* \ingroup bli
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*/
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#include "BLI_timer.h"
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#include "BLI_listbase.h"
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#include "MEM_guardedalloc.h"
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#include "PIL_time.h"
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#define GET_TIME() PIL_check_seconds_timer()
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typedef struct TimedFunction {
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struct TimedFunction *next, *prev;
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BLI_timer_func func;
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BLI_timer_data_free user_data_free;
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void *user_data;
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double next_time;
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uintptr_t uuid;
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bool tag_removal;
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bool persistent;
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} TimedFunction;
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typedef struct TimerContainer {
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ListBase funcs;
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} TimerContainer;
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static TimerContainer GlobalTimer = {{0}};
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void BLI_timer_register(uintptr_t uuid,
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BLI_timer_func func,
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void *user_data,
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BLI_timer_data_free user_data_free,
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double first_interval,
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bool persistent)
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{
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TimedFunction *timed_func = MEM_callocN(sizeof(TimedFunction), __func__);
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timed_func->func = func;
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timed_func->user_data_free = user_data_free;
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timed_func->user_data = user_data;
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timed_func->next_time = GET_TIME() + first_interval;
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timed_func->tag_removal = false;
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timed_func->persistent = persistent;
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timed_func->uuid = uuid;
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BLI_addtail(&GlobalTimer.funcs, timed_func);
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}
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static void clear_user_data(TimedFunction *timed_func)
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{
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if (timed_func->user_data_free) {
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timed_func->user_data_free(timed_func->uuid, timed_func->user_data);
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timed_func->user_data_free = NULL;
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}
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}
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bool BLI_timer_unregister(uintptr_t uuid)
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{
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LISTBASE_FOREACH (TimedFunction *, timed_func, &GlobalTimer.funcs) {
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if (timed_func->uuid == uuid && !timed_func->tag_removal) {
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timed_func->tag_removal = true;
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clear_user_data(timed_func);
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return true;
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}
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}
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return false;
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}
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bool BLI_timer_is_registered(uintptr_t uuid)
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{
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LISTBASE_FOREACH (TimedFunction *, timed_func, &GlobalTimer.funcs) {
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if (timed_func->uuid == uuid && !timed_func->tag_removal) {
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return true;
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}
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}
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return false;
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}
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static void execute_functions_if_necessary(void)
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{
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double current_time = GET_TIME();
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LISTBASE_FOREACH (TimedFunction *, timed_func, &GlobalTimer.funcs) {
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if (timed_func->tag_removal) {
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continue;
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}
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if (timed_func->next_time > current_time) {
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continue;
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}
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double ret = timed_func->func(timed_func->uuid, timed_func->user_data);
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if (ret < 0) {
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timed_func->tag_removal = true;
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}
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else {
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timed_func->next_time = current_time + ret;
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}
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}
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}
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static void remove_tagged_functions(void)
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{
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for (TimedFunction *timed_func = GlobalTimer.funcs.first; timed_func;) {
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TimedFunction *next = timed_func->next;
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if (timed_func->tag_removal) {
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clear_user_data(timed_func);
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BLI_freelinkN(&GlobalTimer.funcs, timed_func);
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}
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timed_func = next;
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}
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}
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void BLI_timer_execute(void)
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{
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execute_functions_if_necessary();
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remove_tagged_functions();
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}
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void BLI_timer_free(void)
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{
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LISTBASE_FOREACH (TimedFunction *, timed_func, &GlobalTimer.funcs) {
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timed_func->tag_removal = true;
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}
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remove_tagged_functions();
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}
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static void remove_non_persistent_functions(void)
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{
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LISTBASE_FOREACH (TimedFunction *, timed_func, &GlobalTimer.funcs) {
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if (!timed_func->persistent) {
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timed_func->tag_removal = true;
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}
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}
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}
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void BLI_timer_on_file_load(void)
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{
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remove_non_persistent_functions();
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}
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