22 |
|
|
23 |
|
static RAY queued_ray; |
24 |
|
|
25 |
< |
extern void |
25 |
> |
void |
26 |
|
ray_pinit( /* initialize ray-tracing processes */ |
27 |
|
char *otnm, |
28 |
|
int nproc |
34 |
|
} |
35 |
|
|
36 |
|
|
37 |
< |
extern void |
37 |
> |
int |
38 |
|
ray_psend( /* add a ray to our send queue */ |
39 |
|
RAY *r |
40 |
|
) |
41 |
|
{ |
42 |
|
if (r == NULL) |
43 |
< |
return; |
43 |
> |
return(0); |
44 |
|
if (ray_pnidle <= 0) |
45 |
< |
error(INTERNAL, "illegal call to ray_psend"); |
45 |
> |
return(0); |
46 |
|
queued_ray = *r; |
47 |
|
ray_pnidle = 0; |
48 |
+ |
return(1); |
49 |
|
} |
50 |
|
|
51 |
|
|
52 |
< |
extern int |
52 |
> |
int |
53 |
|
ray_pqueue( /* queue a ray for computation */ |
54 |
|
RAY *r |
55 |
|
) |
56 |
|
{ |
57 |
|
if (r == NULL) |
58 |
|
return(0); |
59 |
< |
ray_value(r); |
59 |
> |
if (ray_pnidle <= 0) { |
60 |
> |
RAY new_ray = *r; |
61 |
> |
*r = queued_ray; |
62 |
> |
queued_ray = new_ray; |
63 |
> |
} |
64 |
> |
samplendx++; |
65 |
> |
rayvalue(r); |
66 |
|
return(1); |
67 |
|
} |
68 |
|
|
69 |
|
|
70 |
< |
extern int |
70 |
> |
int |
71 |
|
ray_presult( /* check for a completed ray */ |
72 |
|
RAY *r, |
73 |
|
int poll |
76 |
|
if (r == NULL) |
77 |
|
return(0); |
78 |
|
if (ray_pnidle <= 0) { |
72 |
– |
ray_value(&queued_ray); |
79 |
|
*r = queued_ray; |
80 |
+ |
samplendx++; |
81 |
+ |
rayvalue(r); |
82 |
|
ray_pnidle = 1; |
83 |
|
return(1); |
84 |
|
} |
86 |
|
} |
87 |
|
|
88 |
|
|
89 |
< |
extern void |
89 |
> |
void |
90 |
|
ray_pdone( /* reap children and free data */ |
91 |
|
int freall |
92 |
|
) |
96 |
|
} |
97 |
|
|
98 |
|
|
99 |
< |
extern void |
99 |
> |
void |
100 |
|
ray_popen( /* open the specified # processes */ |
101 |
|
int nadd |
102 |
|
) |
103 |
|
{ |
104 |
|
if (ray_pnprocs + nadd > 1) { |
105 |
< |
error(WARNING, "Only single process supported"); |
105 |
> |
error(WARNING, "only single process supported"); |
106 |
|
nadd = 1 - ray_pnprocs; |
107 |
|
} |
108 |
|
ray_pnprocs += nadd; |
110 |
|
} |
111 |
|
|
112 |
|
|
113 |
< |
extern void |
113 |
> |
void |
114 |
|
ray_pclose( /* close one or more child processes */ |
115 |
|
int nsub |
116 |
|
) |
120 |
|
ray_pnprocs -= nsub; |
121 |
|
if ((ray_pnidle -= nsub) < 0) |
122 |
|
ray_pnidle = 0; |
115 |
– |
} |
116 |
– |
|
117 |
– |
|
118 |
– |
void |
119 |
– |
quit(ec) /* make sure exit is called */ |
120 |
– |
int ec; |
121 |
– |
{ |
122 |
– |
exit(ec); |
123 |
|
} |