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Revert "Fix race between first rand(3) calls."

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It is going to be reimplemented with _once().

This reverts commit 28d70deaaf.

MFC after:	1 month
This commit is contained in:
Alexander Motin 2021-07-21 10:50:14 -04:00
parent 23ecfa9d5b
commit 2ae65d449f
1 changed files with 2 additions and 7 deletions
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9
lib/libc/stdlib/rand.c
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@ -44,7 +44,6 @@ __FBSDID("$FreeBSD$");
#include <stdbool.h>
#include <stdlib.h>
#include <syslog.h>
#include <machine/atomic.h>
#include "un-namespace.h"
#include "random.h"
@ -69,15 +68,11 @@ static struct __random_state *rand3_state;
static void
initialize_rand3(void)
{
struct __random_state *state;
int error;
state = allocatestate(TYPE_3);
error = initstate_r(state, 1, state->rst_randtbl, BREAK_3);
rand3_state = allocatestate(TYPE_3);
error = initstate_r(rand3_state, 1, rand3_state->rst_randtbl, BREAK_3);
assert(error == 0);
if (!atomic_cmpset_rel_ptr((volatile uintptr_t *)&rand3_state,
(uintptr_t)NULL, (uintptr_t)state))
free(state);
}
int