See the patch, attached. It changes the default angle to 90, and

[rrdtool.git] / src / rrd_rpncalc.c

diff --git a/src/rrd_rpncalc.c b/src/rrd_rpncalc.c
index 41d1ce3..65748cc 100644 (file)
--- a/src/rrd_rpncalc.c
+++ b/src/rrd_rpncalc.c
@@ -6,6 +6,7 @@
 
 #include "rrd_tool.h"
 #include "rrd_rpncalc.h"
+#include "rrd_graph.h"
 #include <limits.h>
 
 short addop2str(enum op_en op, enum op_en op_type, char *op_str, 
@@ -195,10 +196,10 @@ void parseCDEF_DS(char *def,rrd_t *rrd, int ds_idx)
      * occur too often. */
     for (i = 0; rpnp[i].op != OP_END; i++) {
         if (rpnp[i].op == OP_TIME || rpnp[i].op == OP_LTIME || 
-            rpnp[i].op == OP_PREV)
+            rpnp[i].op == OP_PREV || rpnp[i].op == OP_COUNT)
         {
             rrd_set_error(
-                "operators time, ltime and prev not supported with DS COMPUTE");
+                "operators time, ltime, prev and count not supported with DS COMPUTE");
             free(rpnp);
             return;
         }
@@ -221,7 +222,7 @@ void parseCDEF_DS(char *def,rrd_t *rrd, int ds_idx)
  */
 long lookup_DS(void *rrd_vptr,char *ds_name)
 {
-    int i;
+    unsigned int i;
     rrd_t *rrd; 
     
     rrd = (rrd_t *) rrd_vptr;
@@ -312,6 +313,7 @@ rpn_parse(void *key_hash,char *expr,long (*lookup)(void *,char*)){
        match_op(OP_UN,UN)
        match_op(OP_NEGINF,NEGINF)
        match_op(OP_NE,NE)
+       match_op(OP_COUNT,COUNT)
          match_op_param(OP_PREV_OTHER,PREV)
        match_op(OP_PREV,PREV)
        match_op(OP_INF,INF)
@@ -323,7 +325,7 @@ rpn_parse(void *key_hash,char *expr,long (*lookup)(void *,char*)){
 #undef match_op
 
 
-            else if ((sscanf(expr,"%29[_A-Za-z0-9]%n",
+            else if ((sscanf(expr, DEF_NAM_FMT "%n",
                              vname,&pos) == 1) 
                      && ((rpnp[steps].ptr = (*lookup)(key_hash,vname)) != -1)){
                 rpnp[steps].op = OP_VARIABLE;
@@ -427,15 +429,18 @@ rpn_calc(rpnp_t *rpnp, rpnstack_t *rpnstack, long data_idx,
                    }
                }
                break;
+           case OP_COUNT:
+               rpnstack -> s[++stptr] = (output_idx+1); /* Note: Counter starts at 1 */
+               break;
            case OP_PREV:
-               if ((output_idx-1) <= 0) {
+               if ((output_idx) <= 0) {
                    rpnstack -> s[++stptr] = DNAN;
                } else {
                    rpnstack -> s[++stptr] = output[output_idx-1];
                }
                break;
        case OP_PREV_OTHER:
-         if ((output_idx-1) <= 0) {
+         if ((output_idx) <= 0) {
                rpnstack -> s[++stptr] = DNAN;
          } else {
                rpnstack -> s[++stptr] = rpnp[rpnp[rpi].ptr].data[output_idx-1];
@@ -669,20 +674,20 @@ int
 tzoffset( time_t now ){
     int gm_sec, gm_min, gm_hour, gm_yday, gm_year,
         l_sec, l_min, l_hour, l_yday, l_year;
-    struct tm *t;
+    struct tm t;
     int off;
-    t = gmtime(&now);
-    gm_sec = t->tm_sec;
-    gm_min = t->tm_min;
-    gm_hour = t->tm_hour;
-    gm_yday = t->tm_yday;
-    gm_year = t->tm_year;
-    t = localtime(&now);
-    l_sec = t->tm_sec;
-    l_min = t->tm_min;
-    l_hour = t->tm_hour;
-    l_yday = t->tm_yday;
-    l_year = t->tm_year;
+    gmtime_r(&now, &t);
+    gm_sec = t.tm_sec;
+    gm_min = t.tm_min;
+    gm_hour = t.tm_hour;
+    gm_yday = t.tm_yday;
+    gm_year = t.tm_year;
+    localtime_r(&now, &t);
+    l_sec = t.tm_sec;
+    l_min = t.tm_min;
+    l_hour = t.tm_hour;
+    l_yday = t.tm_yday;
+    l_year = t.tm_year;
     off = (l_sec-gm_sec)+(l_min-gm_min)*60+(l_hour-gm_hour)*3600; 
     if ( l_yday > gm_yday || l_year > gm_year){
         off += 24*3600;