Module: RRD

Defined in:
ext/librrd/1.2/main.c,
ext/librrd/1.3/main.c,
ext/librrd/1.4/main.c

Class Method Summary collapse

Class Method Details

.create(args) ⇒ Object 



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# File 'ext/librrd/1.2/main.c', line 88

VALUE rb_rrd_create(VALUE self, VALUE args)
{
    return rrd_call(rrd_create, args);
}

.dump(args) ⇒ Object 



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# File 'ext/librrd/1.2/main.c', line 93

VALUE rb_rrd_dump(VALUE self, VALUE args)
{
    return rrd_call(rrd_dump, args);
}

.fetch(args) ⇒ Object

Other Calls



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# File 'ext/librrd/1.2/main.c', line 98

VALUE rb_rrd_fetch(VALUE self, VALUE args)
{
    string_arr a;
    unsigned long i, j, k, step, ds_cnt;
    rrd_value_t *raw_data;
    char **raw_names;
    VALUE data, names, result;
    time_t start, end;

    a = string_arr_new(args);
    reset_rrd_state();
    rrd_fetch(a.len, a.strings, &start, &end, &step, &ds_cnt, &raw_names, &raw_data);
    string_arr_delete(a);

    RRD_CHECK_ERROR

    names = rb_ary_new();
    for (i = 0; i < ds_cnt; i++) {
        rb_ary_push(names, rb_str_new2(raw_names[i]));
        free(raw_names[i]);
    }
    free(raw_names);

    k = 0;
    data = rb_ary_new();
    for (i = start; i <= end; i += step) {
        VALUE line = rb_ary_new2(ds_cnt);
        for (j = 0; j < ds_cnt; j++) {
            rb_ary_store(line, j, rb_float_new(raw_data[k]));
            k++;
        }
        rb_ary_push(data, line);
    }
    free(raw_data);
   
    result = rb_ary_new2(4);
    rb_ary_store(result, 0, INT2NUM(start));
    rb_ary_store(result, 1, INT2NUM(end));
    rb_ary_store(result, 2, names);
    rb_ary_store(result, 3, data);
    return result;
}

.flushcached(args) ⇒ Object 



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# File 'ext/librrd/1.4/main.c', line 147

VALUE rb_rrd_flushcached(
    VALUE self,
    VALUE args)
{
    return rrd_call(rrd_flushcached, args);
}

.graph(args) ⇒ Object 



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# File 'ext/librrd/1.2/main.c', line 141

VALUE rb_rrd_graph(VALUE self, VALUE args)
{
    string_arr a;
    char **calcpr, **p;
    VALUE result, print_results;
    int xsize, ysize;
    double ymin, ymax;

    a = string_arr_new(args);
    reset_rrd_state();
    rrd_graph(a.len, a.strings, &calcpr, &xsize, &ysize, NULL, &ymin, &ymax);
    string_arr_delete(a);

    RRD_CHECK_ERROR

    result = rb_ary_new2(3);
    print_results = rb_ary_new();
    p = calcpr;
    for (p = calcpr; p && *p; p++) {
        rb_ary_push(print_results, rb_str_new2(*p));
        free(*p);
    }
    free(calcpr);
    rb_ary_store(result, 0, print_results);
    rb_ary_store(result, 1, INT2FIX(xsize));
    rb_ary_store(result, 2, INT2FIX(ysize));
    return result;
}

.graphv(args) ⇒ Object 



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# File 'ext/librrd/1.3/main.c', line 202

VALUE rb_rrd_graphv(
    VALUE self,
    VALUE args)
{
    return rb_rrd_infocall(rrd_graph_v, args);
}

.info(args) ⇒ Object 



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# File 'ext/librrd/1.2/main.c', line 170

VALUE rb_rrd_info(VALUE self, VALUE args)
{
    string_arr a;
    info_t *p, *data;
    VALUE result;

    a = string_arr_new(args);
    data = rrd_info(a.len, a.strings);
    string_arr_delete(a);

    RRD_CHECK_ERROR

    result = rb_hash_new();
    while (data) {
        VALUE key = rb_str_new2(data->key);
        switch (data->type) {
        case RD_I_VAL:
            if (isnan(data->value.u_val)) {
                rb_hash_aset(result, key, Qnil);
            }
            else {
                rb_hash_aset(result, key, rb_float_new(data->value.u_val));
            }
            break;
        case RD_I_CNT:
            rb_hash_aset(result, key, INT2FIX(data->value.u_cnt));
            break;
        case RD_I_STR:
            rb_hash_aset(result, key, rb_str_new2(data->value.u_str));
            free(data->value.u_str);
            break;
        }
        p = data;
        data = data->next;
        free(p);
    }
    return result;
}

.last(args) ⇒ Object 



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# File 'ext/librrd/1.2/main.c', line 209

VALUE rb_rrd_last(VALUE self, VALUE args)
{
    string_arr a;
    time_t last;

    a = string_arr_new(args);
    reset_rrd_state();
    last = rrd_last(a.len, a.strings);
    string_arr_delete(a);

    RRD_CHECK_ERROR

    return rb_funcall(rb_cTime, rb_intern("at"), 1, INT2FIX(last));
}

.resize(args) ⇒ Object 



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# File 'ext/librrd/1.2/main.c', line 224

VALUE rb_rrd_resize(VALUE self, VALUE args)
{
    return rrd_call(rrd_resize, args);
}

.restore(args) ⇒ Object 



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# File 'ext/librrd/1.2/main.c', line 229

VALUE rb_rrd_restore(VALUE self, VALUE args)
{
    return rrd_call(rrd_restore, args);
}

.tune(args) ⇒ Object 



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# File 'ext/librrd/1.2/main.c', line 234

VALUE rb_rrd_tune(VALUE self, VALUE args)
{
    return rrd_call(rrd_tune, args);
}

.update(args) ⇒ Object 



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# File 'ext/librrd/1.2/main.c', line 239

VALUE rb_rrd_update(VALUE self, VALUE args)
{
    return rrd_call(rrd_update, args);
}

.updatev(args) ⇒ Object 



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# File 'ext/librrd/1.3/main.c', line 195

VALUE rb_rrd_updatev(
    VALUE self,
    VALUE args)
{
    return rb_rrd_infocall(rrd_update_v, args);
}

.xport(args) ⇒ Object 



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# File 'ext/librrd/1.4/main.c', line 323

VALUE rb_rrd_xport(
    VALUE self,
    VALUE args)
{
    string_arr a;
    unsigned long i, j, k, step, col_cnt;
    int xxsize;
    rrd_value_t *data;
    char **legend_v;
    VALUE legend, result, rdata;
    time_t start, end;

    a = string_arr_new(args);
    reset_rrd_state();
    rrd_xport(a.len, a.strings, &xxsize, &start, &end, &step, &col_cnt, &legend_v, &data);
    string_arr_delete(a);

    RRD_CHECK_ERROR;
            
    legend = rb_ary_new();
    for (i = 0; i < col_cnt; i++) {
        rb_ary_push(legend, rb_str_new2(legend_v[i]));
        free(legend_v[i]);
    }
    free(legend_v);

    k = 0;
    rdata = rb_ary_new();
    for (i = start; i <= end; i += step) {
        VALUE line = rb_ary_new2(col_cnt);
        for (j = 0; j < col_cnt; j++) {
            rb_ary_store(line, j, rb_float_new(data[k]));
            k++;
        }
        rb_ary_push(rdata, line);
    }
    free(data);

    result = rb_ary_new2(6);
    rb_ary_store(result, 0, INT2FIX(start));
    rb_ary_store(result, 1, INT2FIX(end));
    rb_ary_store(result, 2, INT2FIX(step));
    rb_ary_store(result, 3, INT2FIX(col_cnt));
    rb_ary_store(result, 4, legend);
    rb_ary_store(result, 5, rdata);
    return result;
}