76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
/*
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*
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* Conky, a system monitor, based on torsmo
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*
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* Please see COPYING for details
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*
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* Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
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* Copyright (c) 2009 Yeon-Hyeong Yang <lbird94@gmail.com>
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* (see AUTHORS)
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* All rights reserved.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/* conky support for information from sony_laptop kernel module
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* information from sony_laptop kernel module
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* /sys/devices/platform/sony-laptop
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* I mimicked the methods from ibm.c
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* Yeon-Hyeong Yang <lbird94@gmail.com> */
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#include "sony.h"
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "config.h"
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#include "conky.h"
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#include "logging.h"
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#include "text_object.h"
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#define SONY_LAPTOP_DIR "/sys/devices/platform/sony-laptop"
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/* fanspeed in SONY_LAPTOP_DIR contains an integer value for fanspeed (0~255).
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* I don't know the exact measurement unit, though. I may assume that 0 for
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* 'fan stopped' and 255 for 'maximum fan speed'. */
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void get_sony_fanspeed(struct text_object *obj, char *p_client_buffer,
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unsigned int client_buffer_size) {
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FILE *fp;
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unsigned int speed = 0;
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char fan[128];
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(void)obj;
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if (!p_client_buffer || client_buffer_size <= 0) { return; }
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snprintf(fan, 127, "%s/fanspeed", SONY_LAPTOP_DIR);
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fp = fopen(fan, "r");
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if (fp != nullptr) {
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while (!feof(fp)) {
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char line[256];
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if (fgets(line, 255, fp) == nullptr) { break; }
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if (sscanf(line, "%u", &speed)) { break; }
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}
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} else {
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CRIT_ERR(
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"can't open '%s': %s\nEnable sony support or remove "
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"sony* from your " PACKAGE_NAME " config file.",
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fan, strerror(errno));
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}
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fclose(fp);
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snprintf(p_client_buffer, client_buffer_size, "%d", speed);
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}
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