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-rw-r--r--platform/x11/power_x11.cpp577
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diff --git a/platform/x11/power_x11.cpp b/platform/x11/power_x11.cpp
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--- a/platform/x11/power_x11.cpp
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-/*************************************************************************/
-/* power_x11.cpp */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* https://godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
-/* */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the */
-/* "Software"), to deal in the Software without restriction, including */
-/* without limitation the rights to use, copy, modify, merge, publish, */
-/* distribute, sublicense, and/or sell copies of the Software, and to */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions: */
-/* */
-/* The above copyright notice and this permission notice shall be */
-/* included in all copies or substantial portions of the Software. */
-/* */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
-/*************************************************************************/
-
-/*
-Adapted from corresponding SDL 2.0 code.
-*/
-
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-
-#include "power_x11.h"
-
-#include <stdio.h>
-#include <unistd.h>
-
-#include "core/error_macros.h"
-#include <dirent.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-
-// CODE CHUNK IMPORTED FROM SDL 2.0
-
-static const char *proc_apm_path = "/proc/apm";
-static const char *proc_acpi_battery_path = "/proc/acpi/battery";
-static const char *proc_acpi_ac_adapter_path = "/proc/acpi/ac_adapter";
-static const char *sys_class_power_supply_path = "/sys/class/power_supply";
-
-FileAccessRef PowerX11::open_power_file(const char *base, const char *node, const char *key) {
- String path = String(base) + String("/") + String(node) + String("/") + String(key);
- FileAccessRef f = FileAccess::open(path, FileAccess::READ);
- return f;
-}
-
-bool PowerX11::read_power_file(const char *base, const char *node, const char *key, char *buf, size_t buflen) {
- ssize_t br = 0;
- FileAccessRef fd = open_power_file(base, node, key);
- if (!fd) {
- return false;
- }
- br = fd->get_buffer(reinterpret_cast<uint8_t *>(buf), buflen - 1);
- fd->close();
- if (br < 0) {
- return false;
- }
- buf[br] = '\0'; // null-terminate the string
- return true;
-}
-
-bool PowerX11::make_proc_acpi_key_val(char **_ptr, char **_key, char **_val) {
- char *ptr = *_ptr;
-
- while (*ptr == ' ') {
- ptr++; /* skip whitespace. */
- }
-
- if (*ptr == '\0') {
- return false; /* EOF. */
- }
-
- *_key = ptr;
-
- while ((*ptr != ':') && (*ptr != '\0')) {
- ptr++;
- }
-
- if (*ptr == '\0') {
- return false; /* (unexpected) EOF. */
- }
-
- *(ptr++) = '\0'; /* terminate the key. */
-
- while (*ptr == ' ') {
- ptr++; /* skip whitespace. */
- }
-
- if (*ptr == '\0') {
- return false; /* (unexpected) EOF. */
- }
-
- *_val = ptr;
-
- while ((*ptr != '\n') && (*ptr != '\0')) {
- ptr++;
- }
-
- if (*ptr != '\0') {
- *(ptr++) = '\0'; /* terminate the value. */
- }
-
- *_ptr = ptr; /* store for next time. */
- return true;
-}
-
-void PowerX11::check_proc_acpi_battery(const char *node, bool *have_battery, bool *charging) {
- const char *base = proc_acpi_battery_path;
- char info[1024];
- char state[1024];
- char *ptr = NULL;
- char *key = NULL;
- char *val = NULL;
- bool charge = false;
- bool choose = false;
- int maximum = -1;
- int remaining = -1;
- int secs = -1;
- int pct = -1;
-
- if (!read_power_file(base, node, "state", state, sizeof(state))) {
- return;
- } else {
- if (!read_power_file(base, node, "info", info, sizeof(info)))
- return;
- }
-
- ptr = &state[0];
- while (make_proc_acpi_key_val(&ptr, &key, &val)) {
- if (String(key) == "present") {
- if (String(val) == "yes") {
- *have_battery = true;
- }
- } else if (String(key) == "charging state") {
- /* !!! FIXME: what exactly _does_ charging/discharging mean? */
- if (String(val) == "charging/discharging") {
- charge = true;
- } else if (String(val) == "charging") {
- charge = true;
- }
- } else if (String(key) == "remaining capacity") {
- String sval = val;
- const int cvt = sval.to_int();
- remaining = cvt;
- }
- }
-
- ptr = &info[0];
- while (make_proc_acpi_key_val(&ptr, &key, &val)) {
- if (String(key) == "design capacity") {
- String sval = val;
- const int cvt = sval.to_int();
- maximum = cvt;
- }
- }
-
- if ((maximum >= 0) && (remaining >= 0)) {
- pct = (int)((((float)remaining) / ((float)maximum)) * 100.0f);
- if (pct < 0) {
- pct = 0;
- } else if (pct > 100) {
- pct = 100;
- }
- }
-
- /* !!! FIXME: calculate (secs). */
-
- /*
- * We pick the battery that claims to have the most minutes left.
- * (failing a report of minutes, we'll take the highest percent.)
- */
- // -- GODOT start --
- //if ((secs < 0) && (this->nsecs_left < 0)) {
- if (this->nsecs_left < 0) {
- // -- GODOT end --
- if ((pct < 0) && (this->percent_left < 0)) {
- choose = true; /* at least we know there's a battery. */
- }
- if (pct > this->percent_left) {
- choose = true;
- }
- } else if (secs > this->nsecs_left) {
- choose = true;
- }
-
- if (choose) {
- this->nsecs_left = secs;
- this->percent_left = pct;
- *charging = charge;
- }
-}
-
-void PowerX11::check_proc_acpi_ac_adapter(const char *node, bool *have_ac) {
- const char *base = proc_acpi_ac_adapter_path;
- char state[256];
- char *ptr = NULL;
- char *key = NULL;
- char *val = NULL;
-
- if (!read_power_file(base, node, "state", state, sizeof(state))) {
- return;
- }
-
- ptr = &state[0];
- while (make_proc_acpi_key_val(&ptr, &key, &val)) {
- String skey = key;
- if (skey == "state") {
- String sval = val;
- if (sval == "on-line") {
- *have_ac = true;
- }
- }
- }
-}
-
-bool PowerX11::GetPowerInfo_Linux_proc_acpi() {
- String node;
- DirAccess *dirp = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
- bool have_battery = false;
- bool have_ac = false;
- bool charging = false;
-
- this->nsecs_left = -1;
- this->percent_left = -1;
- this->power_state = OS::POWERSTATE_UNKNOWN;
-
- dirp->change_dir(proc_acpi_battery_path);
- Error err = dirp->list_dir_begin();
-
- if (err != OK) {
- return false; /* can't use this interface. */
- } else {
- node = dirp->get_next();
- while (node != "") {
- check_proc_acpi_battery(node.utf8().get_data(), &have_battery, &charging /*, seconds, percent*/);
- node = dirp->get_next();
- }
- }
- dirp->change_dir(proc_acpi_ac_adapter_path);
- err = dirp->list_dir_begin();
- if (err != OK) {
- return false; /* can't use this interface. */
- } else {
- node = dirp->get_next();
- while (node != "") {
- check_proc_acpi_ac_adapter(node.utf8().get_data(), &have_ac);
- node = dirp->get_next();
- }
- }
-
- if (!have_battery) {
- this->power_state = OS::POWERSTATE_NO_BATTERY;
- } else if (charging) {
- this->power_state = OS::POWERSTATE_CHARGING;
- } else if (have_ac) {
- this->power_state = OS::POWERSTATE_CHARGED;
- } else {
- this->power_state = OS::POWERSTATE_ON_BATTERY;
- }
-
- memdelete(dirp);
- return true; /* definitive answer. */
-}
-
-bool PowerX11::next_string(char **_ptr, char **_str) {
- char *ptr = *_ptr;
- char *str = *_str;
-
- while (*ptr == ' ') { /* skip any spaces... */
- ptr++;
- }
-
- if (*ptr == '\0') {
- return false;
- }
-
- str = ptr;
- while ((*ptr != ' ') && (*ptr != '\n') && (*ptr != '\0'))
- ptr++;
-
- if (*ptr != '\0')
- *(ptr++) = '\0';
-
- *_str = str;
- *_ptr = ptr;
- return true;
-}
-
-bool PowerX11::int_string(char *str, int *val) {
- String sval = str;
- *val = sval.to_int();
- return (*str != '\0');
-}
-
-/* http://lxr.linux.no/linux+v2.6.29/drivers/char/apm-emulation.c */
-bool PowerX11::GetPowerInfo_Linux_proc_apm() {
- bool need_details = false;
- int ac_status = 0;
- int battery_status = 0;
- int battery_flag = 0;
- int battery_percent = 0;
- int battery_time = 0;
- FileAccessRef fd = FileAccess::open(proc_apm_path, FileAccess::READ);
- char buf[128];
- char *ptr = &buf[0];
- char *str = NULL;
- ssize_t br;
-
- if (!fd) {
- return false; /* can't use this interface. */
- }
-
- br = fd->get_buffer(reinterpret_cast<uint8_t *>(buf), sizeof(buf) - 1);
- fd->close();
-
- if (br < 0) {
- return false;
- }
-
- buf[br] = '\0'; /* null-terminate the string. */
- if (!next_string(&ptr, &str)) { /* driver version */
- return false;
- }
- if (!next_string(&ptr, &str)) { /* BIOS version */
- return false;
- }
- if (!next_string(&ptr, &str)) { /* APM flags */
- return false;
- }
-
- if (!next_string(&ptr, &str)) { /* AC line status */
- return false;
- } else if (!int_string(str, &ac_status)) {
- return false;
- }
-
- if (!next_string(&ptr, &str)) { /* battery status */
- return false;
- } else if (!int_string(str, &battery_status)) {
- return false;
- }
- if (!next_string(&ptr, &str)) { /* battery flag */
- return false;
- } else if (!int_string(str, &battery_flag)) {
- return false;
- }
- if (!next_string(&ptr, &str)) { /* remaining battery life percent */
- return false;
- }
- String sstr = str;
- if (sstr[sstr.length() - 1] == '%') {
- sstr[sstr.length() - 1] = '\0';
- }
- if (!int_string(str, &battery_percent)) {
- return false;
- }
-
- if (!next_string(&ptr, &str)) { /* remaining battery life time */
- return false;
- } else if (!int_string(str, &battery_time)) {
- return false;
- }
-
- if (!next_string(&ptr, &str)) { /* remaining battery life time units */
- return false;
- } else if (String(str) == "min") {
- battery_time *= 60;
- }
-
- if (battery_flag == 0xFF) { /* unknown state */
- this->power_state = OS::POWERSTATE_UNKNOWN;
- } else if (battery_flag & (1 << 7)) { /* no battery */
- this->power_state = OS::POWERSTATE_NO_BATTERY;
- } else if (battery_flag & (1 << 3)) { /* charging */
- this->power_state = OS::POWERSTATE_CHARGING;
- need_details = true;
- } else if (ac_status == 1) {
- this->power_state = OS::POWERSTATE_CHARGED; /* on AC, not charging. */
- need_details = true;
- } else {
- this->power_state = OS::POWERSTATE_ON_BATTERY;
- need_details = true;
- }
-
- this->percent_left = -1;
- this->nsecs_left = -1;
- if (need_details) {
- const int pct = battery_percent;
- const int secs = battery_time;
-
- if (pct >= 0) { /* -1 == unknown */
- this->percent_left = (pct > 100) ? 100 : pct; /* clamp between 0%, 100% */
- }
- if (secs >= 0) { /* -1 == unknown */
- this->nsecs_left = secs;
- }
- }
-
- return true;
-}
-
-/* !!! FIXME: implement d-bus queries to org.freedesktop.UPower. */
-
-bool PowerX11::GetPowerInfo_Linux_sys_class_power_supply(/*PowerState *state, int *seconds, int *percent*/) {
- const char *base = sys_class_power_supply_path;
- String name;
-
- DirAccess *dirp = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
- dirp->change_dir(base);
- Error err = dirp->list_dir_begin();
-
- if (err != OK) {
- return false;
- }
-
- this->power_state = OS::POWERSTATE_NO_BATTERY; /* assume we're just plugged in. */
- this->nsecs_left = -1;
- this->percent_left = -1;
-
- name = dirp->get_next();
-
- while (name != "") {
- bool choose = false;
- char str[64];
- OS::PowerState st;
- int secs;
- int pct;
-
- if ((name == ".") || (name == "..")) {
- name = dirp->get_next();
- continue; //skip these, of course.
- } else {
- if (!read_power_file(base, name.utf8().get_data(), "type", str, sizeof(str))) {
- name = dirp->get_next();
- continue; // Don't know _what_ we're looking at. Give up on it.
- } else {
- if (String(str) != "Battery\n") {
- name = dirp->get_next();
- continue; // we don't care about UPS and such.
- }
- }
- }
-
- /* some drivers don't offer this, so if it's not explicitly reported assume it's present. */
- if (read_power_file(base, name.utf8().get_data(), "present", str, sizeof(str)) && (String(str) == "0\n")) {
- st = OS::POWERSTATE_NO_BATTERY;
- } else if (!read_power_file(base, name.utf8().get_data(), "status", str, sizeof(str))) {
- st = OS::POWERSTATE_UNKNOWN; /* uh oh */
- } else if (String(str) == "Charging\n") {
- st = OS::POWERSTATE_CHARGING;
- } else if (String(str) == "Discharging\n") {
- st = OS::POWERSTATE_ON_BATTERY;
- } else if ((String(str) == "Full\n") || (String(str) == "Not charging\n")) {
- st = OS::POWERSTATE_CHARGED;
- } else {
- st = OS::POWERSTATE_UNKNOWN; /* uh oh */
- }
-
- if (!read_power_file(base, name.utf8().get_data(), "capacity", str, sizeof(str))) {
- pct = -1;
- } else {
- pct = String(str).to_int();
- pct = (pct > 100) ? 100 : pct; /* clamp between 0%, 100% */
- }
-
- if (!read_power_file(base, name.utf8().get_data(), "time_to_empty_now", str, sizeof(str))) {
- secs = -1;
- } else {
- secs = String(str).to_int();
- secs = (secs <= 0) ? -1 : secs; /* 0 == unknown */
- }
-
- /*
- * We pick the battery that claims to have the most minutes left.
- * (failing a report of minutes, we'll take the highest percent.)
- */
- if ((secs < 0) && (this->nsecs_left < 0)) {
- if ((pct < 0) && (this->percent_left < 0)) {
- choose = true; /* at least we know there's a battery. */
- } else if (pct > this->percent_left) {
- choose = true;
- }
- } else if (secs > this->nsecs_left) {
- choose = true;
- }
-
- if (choose) {
- this->nsecs_left = secs;
- this->percent_left = pct;
- this->power_state = st;
- }
-
- name = dirp->get_next();
- }
-
- memdelete(dirp);
- return true; /* don't look any further*/
-}
-
-bool PowerX11::UpdatePowerInfo() {
- if (GetPowerInfo_Linux_sys_class_power_supply()) { // try method 1
- return true;
- }
- if (GetPowerInfo_Linux_proc_acpi()) { // try further
- return true;
- }
- if (GetPowerInfo_Linux_proc_apm()) { // try even further
- return true;
- }
- return false;
-}
-
-PowerX11::PowerX11() :
- nsecs_left(-1),
- percent_left(-1),
- power_state(OS::POWERSTATE_UNKNOWN) {
-}
-
-PowerX11::~PowerX11() {
-}
-
-OS::PowerState PowerX11::get_power_state() {
- if (UpdatePowerInfo()) {
- return power_state;
- } else {
- return OS::POWERSTATE_UNKNOWN;
- }
-}
-
-int PowerX11::get_power_seconds_left() {
- if (UpdatePowerInfo()) {
- return nsecs_left;
- } else {
- return -1;
- }
-}
-
-int PowerX11::get_power_percent_left() {
- if (UpdatePowerInfo()) {
- return percent_left;
- } else {
- return -1;
- }
-}
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