1 files changed, 82 insertions, 1 deletions

diff --git a/lib/perfdata.c b/lib/perfdata.c
index 661756c5..f425ffcf 100644
--- a/lib/perfdata.c
+++ b/lib/perfdata.c
@@ -33,7 +33,7 @@ char *pd_value_to_string(const mp_perfdata_value pd) {
 char *pd_to_string(mp_perfdata pd) {
         assert(pd.label != NULL);
         char *result = NULL;
-        asprintf(&result, "%s=", pd.label);
+        asprintf(&result, "'%s'=", pd.label);
 
         asprintf(&result, "%s%s", result, pd_value_to_string(pd.value));
 
@@ -514,3 +514,84 @@ perfdata_value_parser_wrapper parse_pd_value(const char *input) {
         }
         return result;
 }
+
+mp_perfdata mp_set_pd_max_value(mp_perfdata perfdata, mp_perfdata_value value) {
+        perfdata.max = value;
+        perfdata.max_present = true;
+        return perfdata;
+}
+
+mp_perfdata mp_set_pd_min_value(mp_perfdata perfdata, mp_perfdata_value value) {
+        perfdata.min = value;
+        perfdata.min_present = true;
+        return perfdata;
+}
+
+double mp_get_pd_value(mp_perfdata_value value) {
+        assert(value.type != PD_TYPE_NONE);
+        switch (value.type) {
+        case PD_TYPE_DOUBLE:
+                return value.pd_double;
+        case PD_TYPE_INT:
+                return (double)value.pd_int;
+        case PD_TYPE_UINT:
+                return (double)value.pd_uint;
+        default:
+                return 0; // just to make the compiler happy
+        }
+}
+
+mp_perfdata_value mp_pd_value_multiply(mp_perfdata_value left, mp_perfdata_value right) {
+        if (left.type == right.type) {
+                switch (left.type) {
+                case PD_TYPE_DOUBLE:
+                        left.pd_double *= right.pd_double;
+                        return left;
+                case PD_TYPE_INT:
+                        left.pd_int *= right.pd_int;
+                        return left;
+                case PD_TYPE_UINT:
+                        left.pd_uint *= right.pd_uint;
+                        return left;
+                default:
+                        // what to here?
+                        return left;
+                }
+        }
+
+        // Different types, oh boy, just do the lazy thing for now and switch to double
+        switch (left.type) {
+        case PD_TYPE_INT:
+                left.pd_double = (double)left.pd_int;
+                left.type = PD_TYPE_DOUBLE;
+                break;
+        case PD_TYPE_UINT:
+                left.pd_double = (double)left.pd_uint;
+                left.type = PD_TYPE_DOUBLE;
+                break;
+        }
+
+        switch (right.type) {
+        case PD_TYPE_INT:
+                right.pd_double = (double)right.pd_int;
+                right.type = PD_TYPE_DOUBLE;
+                break;
+        case PD_TYPE_UINT:
+                right.pd_double = (double)right.pd_uint;
+                right.type = PD_TYPE_DOUBLE;
+                break;
+        }
+
+        left.pd_double *= right.pd_double;
+        return left;
+}
+
+mp_range mp_range_multiply(mp_range range, mp_perfdata_value factor) {
+        if (!range.end_infinity) {
+                range.end = mp_pd_value_multiply(range.end, factor);
+        }
+        if (!range.start_infinity) {
+                range.start = mp_pd_value_multiply(range.start, factor);
+        }
+        return range;
+}