Mike Lockwood | 5ffbf26 | 2010-04-09 15:27:16 -0400 | [diff] [blame] | 1 | /* |
Kenny Root | 53308d4 | 2010-07-27 10:57:00 -0700 | [diff] [blame] | 2 | * Copyright (c) 2010, The Android Open Source Project |
| 3 | * All rights reserved. |
Mike Lockwood | 5ffbf26 | 2010-04-09 15:27:16 -0400 | [diff] [blame] | 4 | * |
Kenny Root | 53308d4 | 2010-07-27 10:57:00 -0700 | [diff] [blame] | 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in |
| 12 | * the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * * Neither the name of Google, Inc. nor the names of its contributors |
| 15 | * may be used to endorse or promote products derived from this |
| 16 | * software without specific prior written permission. |
Mike Lockwood | 5ffbf26 | 2010-04-09 15:27:16 -0400 | [diff] [blame] | 17 | * |
Kenny Root | 53308d4 | 2010-07-27 10:57:00 -0700 | [diff] [blame] | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 22 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 25 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 26 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 28 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
Mike Lockwood | 5ffbf26 | 2010-04-09 15:27:16 -0400 | [diff] [blame] | 30 | */ |
| 31 | |
| 32 | #include <sys/time.h> |
| 33 | #include <linux/ioctl.h> |
| 34 | #include <linux/rtc.h> |
| 35 | #include <linux/android_alarm.h> |
| 36 | #include <fcntl.h> |
| 37 | #include <stdio.h> |
Colin Cross | 9d6d030 | 2011-01-05 15:19:31 -0800 | [diff] [blame] | 38 | #include <time.h> |
Mike Lockwood | 5ffbf26 | 2010-04-09 15:27:16 -0400 | [diff] [blame] | 39 | |
| 40 | |
| 41 | static void format_time(int time, char* buffer) { |
| 42 | int seconds, minutes, hours, days; |
| 43 | |
| 44 | seconds = time % 60; |
| 45 | time /= 60; |
| 46 | minutes = time % 60; |
| 47 | time /= 60; |
| 48 | hours = time % 24; |
| 49 | days = time / 24; |
| 50 | |
| 51 | if (days > 0) |
| 52 | sprintf(buffer, "%d days, %02d:%02d:%02d", days, hours, minutes, seconds); |
| 53 | else |
| 54 | sprintf(buffer, "%02d:%02d:%02d", hours, minutes, seconds); |
| 55 | } |
| 56 | |
| 57 | int64_t elapsedRealtime() |
| 58 | { |
| 59 | struct timespec ts; |
| 60 | int fd, result; |
| 61 | |
| 62 | fd = open("/dev/alarm", O_RDONLY); |
| 63 | if (fd < 0) |
| 64 | return fd; |
| 65 | |
| 66 | result = ioctl(fd, ANDROID_ALARM_GET_TIME(ANDROID_ALARM_ELAPSED_REALTIME), &ts); |
| 67 | close(fd); |
| 68 | |
| 69 | if (result == 0) |
| 70 | return ts.tv_sec; |
| 71 | return -1; |
| 72 | } |
| 73 | |
| 74 | int uptime_main(int argc, char *argv[]) |
| 75 | { |
| 76 | float up_time, idle_time; |
| 77 | char up_string[100], idle_string[100], sleep_string[100]; |
| 78 | int elapsed; |
Colin Cross | 9d6d030 | 2011-01-05 15:19:31 -0800 | [diff] [blame] | 79 | struct timespec up_timespec; |
Mike Lockwood | 5ffbf26 | 2010-04-09 15:27:16 -0400 | [diff] [blame] | 80 | |
| 81 | FILE* file = fopen("/proc/uptime", "r"); |
| 82 | if (!file) { |
| 83 | fprintf(stderr, "Could not open /proc/uptime\n"); |
| 84 | return -1; |
| 85 | } |
Colin Cross | 9d6d030 | 2011-01-05 15:19:31 -0800 | [diff] [blame] | 86 | if (fscanf(file, "%*f %f", &idle_time) != 1) { |
Mike Lockwood | 5ffbf26 | 2010-04-09 15:27:16 -0400 | [diff] [blame] | 87 | fprintf(stderr, "Could not parse /proc/uptime\n"); |
| 88 | fclose(file); |
| 89 | return -1; |
| 90 | } |
| 91 | fclose(file); |
| 92 | |
Colin Cross | 9d6d030 | 2011-01-05 15:19:31 -0800 | [diff] [blame] | 93 | if (clock_gettime(CLOCK_MONOTONIC, &up_timespec) < 0) { |
| 94 | fprintf(stderr, "Could not get monotonic time\n"); |
| 95 | return -1; |
| 96 | } |
| 97 | up_time = up_timespec.tv_sec + up_timespec.tv_nsec / 1e9; |
| 98 | |
Mike Lockwood | 5ffbf26 | 2010-04-09 15:27:16 -0400 | [diff] [blame] | 99 | elapsed = elapsedRealtime(); |
| 100 | if (elapsed < 0) { |
| 101 | fprintf(stderr, "elapsedRealtime failed\n"); |
| 102 | return -1; |
| 103 | } |
| 104 | |
| 105 | format_time(elapsed, up_string); |
| 106 | format_time((int)idle_time, idle_string); |
| 107 | format_time((int)(elapsed - up_time), sleep_string); |
| 108 | printf("up time: %s, idle time: %s, sleep time: %s\n", up_string, idle_string, sleep_string); |
| 109 | |
| 110 | return 0; |
| 111 | } |