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sys/sys/clockcalib.h
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/*- | |||||
* Copyright (c) 2022 Colin Percival | |||||
* All rights reserved. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#ifndef _CLOCKCALIB_H_ | |||||
#define _CLOCKCALIB_H_ | |||||
/** | |||||
* clockcalib(clk, clkname): | |||||
* Return the frequency of the provided timer, as calibrated against the | |||||
* current best-available timecounter. | |||||
*/ | |||||
uint64_t clockcalib(uint64_t (*)(void), const char *); | |||||
kib: I do not see a need of a new header for the whole single prototype. timetc.h IMO is the right… | |||||
val_packett.coolUnsubmitted Not Done Inline ActionsIn case the header stays, it should at least not break buildworld :) add <sys/types.h> to avoid: /usr/obj/usr/src/amd64.amd64/tmp/usr/include/sys/clockcalib.h:37:1: error: unknown type name 'uint64_t' […] make[3]: stopped in /usr/src/tools/build/test-includes val_packett.cool: In case the header stays, it should at least not break buildworld :) add `<sys/types.h>` to… | |||||
cpercivaAuthorUnsubmitted Done Inline ActionsOk, merging into timetc.h. I don't think it makes sense to have tc in the function name though, since it's calibrating results returned by a function pointer, not a timecounter. cperciva: Ok, merging into `timetc.h`. I don't think it makes sense to have `tc` in the function name… | |||||
#endif /* _CLOCKCALIB_H_ */ |
I do not see a need of a new header for the whole single prototype. timetc.h IMO is the right place for clockcalib() proto. May be also add 'tc' somewhere in the name, to indicate that the function works with the timecounter.