C++ (Cpp) xc_pm_get_cxstat Beispiele

Beispiel #1

Datei: xenpm.c Projekt: tklengyel/xen

/* show cpu idle information on CPU cpuid */
static int get_cxstat_by_cpuid(xc_interface *xc_handle, int cpuid, struct xc_cx_stat *cxstat)
{
    int ret = 0;
    int max_cx_num = 0;

    ret = xc_pm_get_max_cx(xc_handle, cpuid, &max_cx_num);
    if ( ret )
        return -errno;

    if ( !cxstat )
        return -EINVAL;

    if ( !max_cx_num )
        return -ENODEV;

    cxstat->triggers = calloc(max_cx_num, sizeof(*cxstat->triggers));
    cxstat->residencies = calloc(max_cx_num, sizeof(*cxstat->residencies));
    cxstat->pc = calloc(MAX_PKG_RESIDENCIES, sizeof(*cxstat->pc));
    cxstat->cc = calloc(MAX_CORE_RESIDENCIES, sizeof(*cxstat->cc));
    if ( !cxstat->triggers || !cxstat->residencies ||
         !cxstat->pc || !cxstat->cc )
    {
        free(cxstat->cc);
        free(cxstat->pc);
        free(cxstat->residencies);
        free(cxstat->triggers);
        return -ENOMEM;
    }

    cxstat->nr = max_cx_num;
    cxstat->nr_pc = MAX_PKG_RESIDENCIES;
    cxstat->nr_cc = MAX_CORE_RESIDENCIES;

    ret = xc_pm_get_cxstat(xc_handle, cpuid, cxstat);
    if( ret )
    {
        ret = -errno;
        free(cxstat->triggers);
        free(cxstat->residencies);
        free(cxstat->pc);
        free(cxstat->cc);
        cxstat->triggers = NULL;
        cxstat->residencies = NULL;
        cxstat->pc = NULL;
        cxstat->cc = NULL;
    }

    return ret;
}

Beispiel #2

Datei: xenpm.c Projekt: CPFL/gxen

/* show cpu idle information on CPU cpuid */
static int get_cxstat_by_cpuid(xc_interface *xc_handle, int cpuid, struct xc_cx_stat *cxstat)
{
    int ret = 0;
    int max_cx_num = 0;

    ret = xc_pm_get_max_cx(xc_handle, cpuid, &max_cx_num);
    if ( ret )
        return -errno;

    if ( !cxstat )
        return -EINVAL;

    if ( !max_cx_num )
        return -ENODEV;

    cxstat->triggers = malloc(max_cx_num * sizeof(uint64_t));
    if ( !cxstat->triggers )
        return -ENOMEM;
    cxstat->residencies = malloc(max_cx_num * sizeof(uint64_t));
    if ( !cxstat->residencies )
    {
        free(cxstat->triggers);
        return -ENOMEM;
    }

    ret = xc_pm_get_cxstat(xc_handle, cpuid, cxstat);
    if( ret )
    {
        ret = -errno;
        free(cxstat->triggers);
        free(cxstat->residencies);
        cxstat->triggers = NULL;
        cxstat->residencies = NULL;
    }

    return ret;
}