summaryrefslogtreecommitdiff
path: root/src/prng/random.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/prng/random.c')
-rw-r--r--src/prng/random.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/src/prng/random.c b/src/prng/random.c
index cc5702ed..4ad62058 100644
--- a/src/prng/random.c
+++ b/src/prng/random.c
@@ -33,7 +33,7 @@ static int n = 31;
static int i = 3;
static int j = 0;
static uint32_t *x = init+1;
-static int lock;
+static int lock[2];
static uint32_t lcg31(uint32_t x) {
return (1103515245*x + 12345) & 0x7fffffff;
@@ -74,9 +74,9 @@ static void __srandom(unsigned seed) {
}
void srandom(unsigned seed) {
- LOCK(&lock);
+ LOCK(lock);
__srandom(seed);
- UNLOCK(&lock);
+ UNLOCK(lock);
}
char *initstate(unsigned seed, char *state, size_t size) {
@@ -84,7 +84,7 @@ char *initstate(unsigned seed, char *state, size_t size) {
if (size < 8)
return 0;
- LOCK(&lock);
+ LOCK(lock);
old = savestate();
if (size < 32)
n = 0;
@@ -98,24 +98,24 @@ char *initstate(unsigned seed, char *state, size_t size) {
n = 63;
x = (uint32_t*)state + 1;
__srandom(seed);
- UNLOCK(&lock);
+ UNLOCK(lock);
return old;
}
char *setstate(char *state) {
void *old;
- LOCK(&lock);
+ LOCK(lock);
old = savestate();
loadstate((uint32_t*)state);
- UNLOCK(&lock);
+ UNLOCK(lock);
return old;
}
long random(void) {
long k;
- LOCK(&lock);
+ LOCK(lock);
if (n == 0) {
k = x[0] = lcg31(x[0]);
goto end;
@@ -127,6 +127,6 @@ long random(void) {
if (++j == n)
j = 0;
end:
- UNLOCK(&lock);
+ UNLOCK(lock);
return k;
}