3031749c2d
This commit removes trailing whitespace from lines in files. Almost all files are affected, as the BSD license copyright header had trailing whitespace on 4 lines in it [hence the number of files reporting 8 lines changed in the diffstat]. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> [Thomas: remove spaces before tabs in libs] [Thomas: remove more trailing spaces in non-C files] Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _RTE_RANDOM_H_
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#define _RTE_RANDOM_H_
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/**
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* @file
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*
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* Pseudo-random Generators in RTE
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <stdlib.h>
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/**
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* Seed the pseudo-random generator.
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*
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* The generator is automatically seeded by the EAL init with a timer
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* value. It may need to be re-seeded by the user with a real random
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* value.
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*
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* @param seedval
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* The value of the seed.
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*/
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static inline void
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rte_srand(uint64_t seedval)
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{
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srand48((long unsigned int)seedval);
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}
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/**
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* Get a pseudo-random value.
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*
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* This function generates pseudo-random numbers using the linear
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* congruential algorithm and 48-bit integer arithmetic, called twice
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* to generate a 64-bit value.
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*
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* @return
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* A pseudo-random value between 0 and (1<<64)-1.
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*/
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static inline uint64_t
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rte_rand(void)
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{
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uint64_t val;
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val = lrand48();
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val <<= 32;
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val += lrand48();
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return val;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _RTE_PER_LCORE_H_ */
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