Merge "Remove /dev/alarm cruft from uptime."

 * SUCH DAMAGE.

 */

#include <sys/time.h>

#include <linux/ioctl.h>

#include <linux/rtc.h>

#include <linux/android_alarm.h>

#include <fcntl.h>

#include <errno.h>

#include <stdio.h>

#include <string.h>

#include <time.h>

#include <unistd.h>

static void format_time(int time, char* buffer) {

    int seconds, minutes, hours, days;

    seconds = time % 60;

    int seconds = time % 60;

    time /= 60;

    minutes = time % 60;

    int minutes = time % 60;

    time /= 60;

    hours = time % 24;

    days = time / 24;

    int hours = time % 24;

    int days = time / 24;

    if (days > 0)

        sprintf(buffer, "%d days, %02d:%02d:%02d", days, hours, minutes, seconds);

    else

    if (days > 0) {

        sprintf(buffer, "%d day%s, %02d:%02d:%02d", days, (days == 1) ? "" : "s", hours, minutes, seconds);

    } else {

        sprintf(buffer, "%02d:%02d:%02d", hours, minutes, seconds);

    }

static int elapsedRealtimeAlarm(struct timespec *ts)

{

    int fd, result;

    fd = open("/dev/alarm", O_RDONLY);

    if (fd < 0)

        return fd;

    result = ioctl(fd, ANDROID_ALARM_GET_TIME(ANDROID_ALARM_ELAPSED_REALTIME), ts);

    close(fd);

    return result;

}

int64_t elapsedRealtime()

{

    struct timespec ts;

    int result = elapsedRealtimeAlarm(&ts);

    if (result < 0)

        result = clock_gettime(CLOCK_BOOTTIME, &ts);

    if (result == 0)

        return ts.tv_sec;

    return -1;

}

int uptime_main(int argc __attribute__((unused)),

        char *argv[] __attribute__((unused)))

{

    float up_time, idle_time;

    char up_string[100], idle_string[100], sleep_string[100];

    int elapsed;

    struct timespec up_timespec;

int uptime_main(int argc __attribute__((unused)), char *argv[] __attribute__((unused))) {

    FILE* file = fopen("/proc/uptime", "r");

    if (!file) {

        fprintf(stderr, "Could not open /proc/uptime\n");

        return -1;

    }

    float idle_time;

    if (fscanf(file, "%*f %f", &idle_time) != 1) {

        fprintf(stderr, "Could not parse /proc/uptime\n");

        fclose(file);

    }

    fclose(file);

    if (clock_gettime(CLOCK_MONOTONIC, &up_timespec) < 0) {

        fprintf(stderr, "Could not get monotonic time\n");

    struct timespec up_timespec;

    if (clock_gettime(CLOCK_MONOTONIC, &up_timespec) == -1) {

        fprintf(stderr, "Could not get monotonic time: %s\n", strerror(errno));

	return -1;

    }

    up_time = up_timespec.tv_sec + up_timespec.tv_nsec / 1e9;

    float up_time = up_timespec.tv_sec + up_timespec.tv_nsec / 1e9;

    elapsed = elapsedRealtime();

    if (elapsed < 0) {

        fprintf(stderr, "elapsedRealtime failed\n");

    struct timespec elapsed_timespec;

    if (clock_gettime(CLOCK_BOOTTIME, &elapsed_timespec) == -1) {

        fprintf(stderr, "Could not get boot time: %s\n", strerror(errno));

        return -1;

    }

    int elapsed = elapsed_timespec.tv_sec;

    char up_string[100], idle_string[100], sleep_string[100];

    format_time(elapsed, up_string);

    format_time((int)idle_time, idle_string);

    format_time((int)(elapsed - up_time), sleep_string);