projects
/
physik
/
morpheus.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
-
[physik/morpheus.git]
/
random.c
diff --git
a/random.c
b/random.c
index
51f6774
..
5657eed
100644
(file)
--- a/
random.c
+++ b/
random.c
@@
-12,18
+12,23
@@
/* global and extern variables */
extern u32 gr;
extern int random_fd;
/* global and extern variables */
extern u32 gr;
extern int random_fd;
+extern u32 *rand_buf,*rand_current;
/* return random integer between 0 - max-1 */
u32 rand_get(u32 max)
{
/* return random integer between 0 - max-1 */
u32 rand_get(u32 max)
{
- u32 rand_int;
- if(read(random_fd,&rand_int,4)!=4)
+ if(rand_current==rand_buf+RAND_BUF_SIZE)
{
{
- puts("failed reading 4 bytes of random data");
- return -23;
+ printfd("debug: reading new random bytes\n");
+ if(read(random_fd,rand_buf,RAND_BUF_SIZE)!=RAND_BUF_SIZE)
+ {
+ puts("failed reading viel bytes of random data");
+ return -23;
+ }
+ rand_current=rand_buf;
}
/* cells numbered 0...max-1 */
}
/* cells numbered 0...max-1 */
- return((u32)(
rand_int
*(max*1.0/URAND_MAX)));
+ return((u32)(
*(rand_current++)
*(max*1.0/URAND_MAX)));
}
/* get z value (linear growth of probability with depths) */
}
/* get z value (linear growth of probability with depths) */
@@
-40,4
+45,3
@@
u32 rand_get_lgp(int slope_nel,int start_nel,u32 z_max)
return(i-1); /* return values 0...z_cell-1 */
}
return(i-1); /* return values 0...z_cell-1 */
}
-