/
getTimes.go
65 lines (55 loc) · 1.07 KB
/
getTimes.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
package getTimes
import (
vec "container/vector"
p "./parser"
)
// takes vector of nodes, returns sequential schedule length
func SeqTime (v vec.Vector) (int64) {
var s int64
s = 0
for i:=0; i<v.Len(); i++ {
s += (v.At(i).(*p.Node)).Ex
}
return s
}
// takes vector of nodes, returns critical path length
func CPTime (v vec.Vector) (int64) {
var sLoc int
var cpt int64
sLoc = -1
for i:=0; i<v.Len(); i++ {
v.At(i).(*p.Node).ResetLevel()
if v.At(i).(*p.Node).Ty == "ROOT" {
sLoc = i
}
}
setCPTime(&v, sLoc)
cpt = v.At(sLoc).(*p.Node).Lev
for i:=0; i<v.Len(); i++ {
v.At(i).(*p.Node).ResetLevel()
}
return cpt
}
// helper for func CPTime
func setCPTime (v *vec.Vector, s int) {
var t *p.Node
t = v.At(s).(*p.Node)
if t.Cl.Len() == 0 {
t.Lev = t.Ex
} else {
var m int64
m = 0
for i:=0; i<t.Cl.Len(); i++ {
tId := t.Cl.At(i).(*p.Rel).Id
idx := p.GetIndexById(*v, tId)
if v.At(idx).(*p.Node).Lev < 0 {
setCPTime(v, idx)
}
temp := t.Ex + v.At(idx).(*p.Node).Lev
if temp > m {
m = temp
}
}
t.Lev = m
}
}