48 lines
862 B
C
48 lines
862 B
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) NGINX, Inc.
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*/
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#ifndef _NXT_RANDOM_H_INCLUDED_
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#define _NXT_RANDOM_H_INCLUDED_
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#if (NXT_HAVE_ARC4RANDOM)
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/*
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* arc4random() has been introduced in OpenBSD 2.1 and then was ported
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* to FreeBSD 2.2.6, NetBSD 2.0, MacOSX and SmartOS.
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*
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* arc4random() automatically initializes itself in the first call and
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* then reinitializes itself in the first call in every forked processes.
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*/
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typedef void *nxt_random_t;
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#define nxt_random_init(r)
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#define nxt_random(r) arc4random()
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#else
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typedef struct {
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uint8_t i;
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uint8_t j;
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uint8_t s[256];
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int32_t count;
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} nxt_random_t;
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void nxt_random_init(nxt_random_t *r);
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uint32_t nxt_random(nxt_random_t *r);
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#if (NXT_LIB_UNIT_TEST)
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nxt_int_t nxt_random_unit_test(nxt_thread_t *thr);
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#endif
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#endif
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#endif /* _NXT_RANDOM_H_INCLUDED_ */
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