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The current virRandomBits() API is only usable if the caller wants a random number in the range [0, n-1) where n is a power of two. This adds a virRandom() API which generates a double in the range [0.0,1.0) with 48 bits of entropy. It then also adds a virRandomInt(uint32_t max) API which generates an unsigned in the range [0,@max) Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
33 lines
1.0 KiB
C
33 lines
1.0 KiB
C
/*
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* Copyright (C) 2012 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Authors:
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* Daniel P. Berrange <berrange@redhat.com>
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*/
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#ifndef __VIR_RANDOM_H__
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# define __VIR_RANDOM_H__
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# include "internal.h"
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uint64_t virRandomBits(int nbits);
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double virRandom(void);
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uint32_t virRandomInt(uint32_t max);
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int virRandomGenerateWWN(char **wwn, const char *virt_type);
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#endif /* __VIR_RANDOM_H__ */
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