#include <errno.h>
#include <stdlib.h>

#include "utils.h"
#include "xce/errnox.h"
#include "xce/types.h"

static void kill_thresholds(xce_res_threshold_t** thresholds, int count)
{
    int i;

    if (thresholds == NULL) {
        return;
    }

    if (count > 0) {
        for (i = 0; i < count; i++) {
            xce_res_threshold_t* it = thresholds[i];

            if (it == NULL) {
                continue;
            }

            FREEUP(it->name);
            FREEUP(it);
        }
    }

    FREEUP(thresholds);
}

void free_resource_thresholds(xce_res_threshold_t** thresholds, int count)
{
    kill_thresholds(thresholds, count);
}

xce_res_threshold_t** dup_resource_thresholds(xce_res_threshold_t** src,
                                              int                   count)
{
    xce_res_threshold_t** thresholds = NULL;
    int                   i;

    if ((src == NULL) || (count <= 0)) {
        errno = EINVAL;
        return NULL;
    }

    thresholds
        = (xce_res_threshold_t**)calloc(count, sizeof(xce_res_threshold_t*));
    if (thresholds == NULL) {
        errno = ENOMEM;
        return NULL;
    }

    for (i = 0; i < count; i++) {
        xce_res_threshold_t* it = (xce_res_threshold_t*)calloc(1, sizeof(*it));

        if (it == NULL) {
            kill_thresholds(thresholds, i);
            errno = ENOMEM;

            return NULL;
        }

        thresholds[i] = it;

        it->name = strdup(src[i]->name);
        if (it->name == NULL) {
            kill_thresholds(thresholds, i + 1);
            errno = ENOMEM;

            return NULL;
        }

        it->sched = src[i]->sched;
        it->stop  = src[i]->stop;
    }

    return thresholds;
}