mirror of
https://github.com/henrydcase/pqc.git
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93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
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/*
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* Copyright (C) 2021 - 2022, Stephan Mueller <smueller@chronox.de>
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*
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* License: see LICENSE file in root directory
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
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* WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*/
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#ifndef JITTERENTROPY_TIMER_H
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#define JITTERENTROPY_TIMER_H
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#include "jitterentropy.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#ifdef JENT_CONF_ENABLE_INTERNAL_TIMER
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void jent_notime_block_switch(void);
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int jent_notime_settick(struct rand_data *ec);
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void jent_notime_unsettick(struct rand_data *ec);
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void jent_get_nstime_internal(struct rand_data *ec, uint64_t *out);
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int jent_notime_enable(struct rand_data *ec, unsigned int flags);
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void jent_notime_disable(struct rand_data *ec);
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int jent_notime_switch(struct jent_notime_thread *new_thread);
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void jent_notime_force(void);
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int jent_notime_forced(void);
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#else /* JENT_CONF_ENABLE_INTERNAL_TIMER */
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static inline void jent_notime_block_switch(void) { }
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static inline int jent_notime_settick(struct rand_data *ec)
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{
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(void)ec;
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return 0;
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}
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static inline void jent_notime_unsettick(struct rand_data *ec) { (void)ec; }
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static inline void jent_get_nstime_internal(struct rand_data *ec, uint64_t *out)
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{
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(void)ec;
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jent_get_nstime(out);
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}
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static inline int jent_notime_enable(struct rand_data *ec, unsigned int flags)
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{
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(void)ec;
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/* If we force the timer-less noise source, we return an error */
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if (flags & JENT_FORCE_INTERNAL_TIMER)
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return EHEALTH;
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return 0;
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}
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static inline void jent_notime_disable(struct rand_data *ec)
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{
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(void)ec;
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}
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static inline int jent_notime_switch(struct jent_notime_thread *new_thread)
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{
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(void)new_thread;
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return -EOPNOTSUPP;
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}
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static inline void jent_notime_force(void) { }
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static inline int jent_notime_forced(void) { return 0; }
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#endif /* JENT_CONF_ENABLE_INTERNAL_TIMER */
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#ifdef __cplusplus
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}
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#endif
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#endif /* JITTERENTROPY-TIMER_H */
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