C++ (Cpp) add_tid_to_cgroup 예제들

예제 #1

파일: sched_policy.c 프로젝트: biysaiy/atlas

int set_cpuset_policy(int tid, SchedPolicy policy)
{
    // in the absence of cpusets, use the old sched policy
#ifndef USE_CPUSETS
    return set_sched_policy(tid, policy);
#else
    if (tid == 0) {
        tid = gettid();
    }
    policy = _policy(policy);
    pthread_once(&the_once, __initialize);

    int fd = -1;
    int boost_fd = -1;
    switch (policy) {
    case SP_BACKGROUND:
        fd = bg_cpuset_fd;
        boost_fd = bg_schedboost_fd;
        break;
    case SP_FOREGROUND:
    case SP_AUDIO_APP:
    case SP_AUDIO_SYS:
        fd = fg_cpuset_fd;
        boost_fd = fg_schedboost_fd;
        break;
    case SP_TOP_APP :
        fd = ta_cpuset_fd;
        boost_fd = fg_schedboost_fd;
        break;
    case SP_SYSTEM:
        fd = system_bg_cpuset_fd;
        boost_fd = bg_schedboost_fd;
        break;
    default:
        boost_fd = fd = -1;
        break;
    }

    if (add_tid_to_cgroup(tid, fd) != 0) {
        if (errno != ESRCH && errno != ENOENT)
            return -errno;
    }

    if (boost_fd > 0 && add_tid_to_cgroup(tid, boost_fd) != 0) {
        if (errno != ESRCH && errno != ENOENT)
            return -errno;
    }

    return 0;
#endif
}

예제 #2

파일: sched_policy.c 프로젝트: Djdhee/Frash4iOS

int set_sched_policy(int tid, SchedPolicy policy)
{
    initialize();

#if POLICY_DEBUG
    char statfile[64];
    char statline[1024];
    char thread_name[255];
    int fd;

    sprintf(statfile, "/proc/%d/stat", tid);
    memset(thread_name, 0, sizeof(thread_name));

    fd = open(statfile, O_RDONLY);
    if (fd >= 0) {
        int rc = read(fd, statline, 1023);
        close(fd);
        statline[rc] = 0;
        char *p = statline;
        char *q;

        for (p = statline; *p != '('; p++);
        p++;
        for (q = p; *q != ')'; q++);

        strncpy(thread_name, p, (q-p));
    }
    if (policy == SP_BACKGROUND) {
        LOGD("vvv tid %d (%s)", tid, thread_name);
    } else if (policy == SP_FOREGROUND) {
        LOGD("^^^ tid %d (%s)", tid, thread_name);
    } else {
        LOGD("??? tid %d (%s)", tid, thread_name);
    }
#endif

    if (__sys_supports_schedgroups) {
        const char *grp = "";

        if (policy == SP_BACKGROUND) {
            grp = "bg_non_interactive";
        }

        if (add_tid_to_cgroup(tid, grp)) {
            if (errno != ESRCH && errno != ENOENT)
                return -errno;
        }
    } else {
        struct sched_param param;

        param.sched_priority = 0;
        sched_setscheduler(tid,
                           (policy == SP_BACKGROUND) ?
                            SCHED_BATCH : SCHED_NORMAL,
                           &param);
    }

    return 0;
}

예제 #3

파일: sched_policy.c 프로젝트: biysaiy/atlas

int set_sched_policy(int tid, SchedPolicy policy)
{
    if (tid == 0) {
        tid = gettid();
    }
    policy = _policy(policy);
    pthread_once(&the_once, __initialize);

#if POLICY_DEBUG
    char statfile[64];
    char statline[1024];
    char thread_name[255];
    int fd;

    sprintf(statfile, "/proc/%d/stat", tid);
    memset(thread_name, 0, sizeof(thread_name));

    fd = open(statfile, O_RDONLY);
    if (fd >= 0) {
        int rc = read(fd, statline, 1023);
        close(fd);
        statline[rc] = 0;
        char *p = statline;
        char *q;

        for (p = statline; *p != '('; p++);
        p++;
        for (q = p; *q != ')'; q++);

        strncpy(thread_name, p, (q-p));
    }
    switch (policy) {
    case SP_BACKGROUND:
        SLOGD("vvv tid %d (%s)", tid, thread_name);
        break;
    case SP_FOREGROUND:
    case SP_AUDIO_APP:
    case SP_AUDIO_SYS:
    case SP_TOP_APP:
        SLOGD("^^^ tid %d (%s)", tid, thread_name);
        break;
    case SP_SYSTEM:
        SLOGD("/// tid %d (%s)", tid, thread_name);
        break;
    default:
        SLOGD("??? tid %d (%s)", tid, thread_name);
        break;
    }
#endif

    if (__sys_supports_schedgroups) {
        int fd;
        switch (policy) {
        case SP_BACKGROUND:
            fd = bg_cgroup_fd;
            break;
        case SP_FOREGROUND:
        case SP_AUDIO_APP:
        case SP_AUDIO_SYS:
        case SP_TOP_APP:
            fd = fg_cgroup_fd;
            break;
        default:
            fd = -1;
            break;
        }


        if (add_tid_to_cgroup(tid, fd) != 0) {
            if (errno != ESRCH && errno != ENOENT)
                return -errno;
        }
    } else {
        struct sched_param param;

        param.sched_priority = 0;
        sched_setscheduler(tid,
                           (policy == SP_BACKGROUND) ?
                           SCHED_BATCH : SCHED_NORMAL,
                           &param);
    }

    prctl(PR_SET_TIMERSLACK_PID,
          policy == SP_BACKGROUND ? TIMER_SLACK_BG : TIMER_SLACK_FG, tid);

    return 0;
}