12235947eb
Our uptime is very different from the regular one, and usefully so, so this code will live on. Remove dead bits. Also fix the annoying "1 days" bug while I'm here. Change-Id: Ied5403ba96dcc5eddd4d386b59c6fcdea3209881
87 lines
3.3 KiB
C
87 lines
3.3 KiB
C
/*
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* Copyright (c) 2010, The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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static void format_time(int time, char* buffer) {
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int seconds = time % 60;
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time /= 60;
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int minutes = time % 60;
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time /= 60;
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int hours = time % 24;
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int days = time / 24;
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if (days > 0) {
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sprintf(buffer, "%d day%s, %02d:%02d:%02d", days, (days == 1) ? "" : "s", hours, minutes, seconds);
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} else {
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sprintf(buffer, "%02d:%02d:%02d", hours, minutes, seconds);
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}
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}
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int uptime_main(int argc __attribute__((unused)), char *argv[] __attribute__((unused))) {
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FILE* file = fopen("/proc/uptime", "r");
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if (!file) {
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fprintf(stderr, "Could not open /proc/uptime\n");
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return -1;
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}
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float idle_time;
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if (fscanf(file, "%*f %f", &idle_time) != 1) {
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fprintf(stderr, "Could not parse /proc/uptime\n");
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fclose(file);
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return -1;
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}
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fclose(file);
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struct timespec up_timespec;
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if (clock_gettime(CLOCK_MONOTONIC, &up_timespec) == -1) {
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fprintf(stderr, "Could not get monotonic time: %s\n", strerror(errno));
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return -1;
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}
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float up_time = up_timespec.tv_sec + up_timespec.tv_nsec / 1e9;
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struct timespec elapsed_timespec;
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if (clock_gettime(CLOCK_BOOTTIME, &elapsed_timespec) == -1) {
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fprintf(stderr, "Could not get boot time: %s\n", strerror(errno));
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return -1;
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}
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int elapsed = elapsed_timespec.tv_sec;
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char up_string[100], idle_string[100], sleep_string[100];
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format_time(elapsed, up_string);
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format_time((int)idle_time, idle_string);
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format_time((int)(elapsed - up_time), sleep_string);
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printf("up time: %s, idle time: %s, sleep time: %s\n", up_string, idle_string, sleep_string);
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return 0;
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}
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