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When having more than one matching item in a frame the MAX and MIN calculation 

could return an invalid value.  Also fixed AVG calculation.

svn path=/trunk/; revision=24220
This commit is contained in:
Stig Bjørlykke 2008-01-29 14:27:02 +00:00
parent c024c88a0b
commit 7ec0e26318
1 changed files with 19 additions and 17 deletions
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36
gtk/io_stat.c
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@ -116,6 +116,7 @@ typedef struct _io_stat_calc_type_t {
typedef struct _io_item_t {
guint32 frames; /* always calculated, will hold number of frames*/
guint32 bytes; /* always calculated, will hold number of bytes*/
guint32 fields;
gint32 int_max;
gint32 int_min;
gint32 int_tot;
@ -201,6 +202,7 @@ io_stat_reset(io_stat_t *io)
ioi->frames=0;
ioi->bytes=0;
ioi->fields=0;
ioi->int_max=0;
ioi->int_min=0;
ioi->int_tot=0;
@ -293,7 +295,7 @@ gtk_iostat_packet(void *g, packet_info *pinfo, epan_dissect_t *edt, const void *
}
/* update the appropriate counters, make sure that if
* frames==0 then this is the first seen value so
* fields==0 then this is the first seen value so
* set any min/max values accordingly
*/
for(i=0;i<gp->len;i++){
@ -307,26 +309,28 @@ gtk_iostat_packet(void *g, packet_info *pinfo, epan_dissect_t *edt, const void *
case FT_UINT32:
new_int=fvalue_get_uinteger(&((field_info *)gp->pdata[i])->value);
if((new_int>it->int_max)||(it->frames==0)){
if((new_int>it->int_max)||(it->fields==0)){
it->int_max=new_int;
}
if((new_int<it->int_min)||(it->frames==0)){
if((new_int<it->int_min)||(it->fields==0)){
it->int_min=new_int;
}
it->int_tot+=new_int;
it->fields++;
break;
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
new_int=fvalue_get_sinteger(&((field_info *)gp->pdata[i])->value);
if((new_int>it->int_max)||(it->frames==0)){
if((new_int>it->int_max)||(it->fields==0)){
it->int_max=new_int;
}
if((new_int<it->int_min)||(it->frames==0)){
if((new_int<it->int_min)||(it->fields==0)){
it->int_min=new_int;
}
it->int_tot+=new_int;
it->fields++;
break;
case FT_RELATIVE_TIME:
new_time=fvalue_get(&((field_info *)gp->pdata[0])->value);
@ -372,18 +376,18 @@ gtk_iostat_packet(void *g, packet_info *pinfo, epan_dissect_t *edt, const void *
if( (new_time->secs>it->time_max.secs)
||( (new_time->secs==it->time_max.secs)
&&(new_time->nsecs>it->time_max.nsecs))
||(it->frames==0)){
||(it->fields==0)){
it->time_max=*new_time;
}
if( (new_time->secs<it->time_min.secs)
||( (new_time->secs==it->time_min.secs)
&&(new_time->nsecs<it->time_min.nsecs))
||(it->frames==0)){
||(it->fields==0)){
it->time_min=*new_time;
}
nstime_add(&it->time_tot, new_time);
it->fields++;
}
}
}
}
@ -447,8 +451,8 @@ get_it_value(io_stat_t *io, int graph_id, int idx)
value=it->int_min;
break;
case CALC_TYPE_AVG:
if(it->frames){
value=(it->int_max+it->int_min)/2;
if(it->fields){
value=it->int_tot/it->fields;
} else {
value=0;
}
@ -472,14 +476,12 @@ get_it_value(io_stat_t *io, int graph_id, int idx)
value=(guint32) (it->time_tot.secs*1000000+it->time_tot.nsecs/1000);
break;
case CALC_TYPE_AVG:
if(it->frames){
guint64 t1, t2; /* time in us */
if(it->fields){
guint64 t; /* time in us */
t1=it->time_max.secs;
t1=t1*1000000+it->time_max.nsecs/1000;
t2=it->time_min.secs;
t2=t2*1000000+it->time_min.nsecs/1000;
value=(guint32) ((t1+t2)/2);
t=it->time_tot.secs;
t=t*1000000+it->time_tot.nsecs/1000;
value=(guint32) (t/it->fields);
} else {
value=0;
}