mirror of
https://github.com/azure-rtos/threadx
synced 2025-02-06 08:08:27 +08:00
78 lines
4.6 KiB
C
78 lines
4.6 KiB
C
/**************************************************************************/
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/* */
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/* Copyright (c) Microsoft Corporation. All rights reserved. */
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/* */
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/* This software is licensed under the Microsoft Software License */
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/* Terms for Microsoft Azure RTOS. Full text of the license can be */
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/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
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/* and in the root directory of this software. */
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/* */
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/**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** POSIX wrapper for THREADX */
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/** */
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/** */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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/* Include necessary system files. */
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#include "tx_api.h" /* Threadx API */
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#include "pthread.h" /* Posix API */
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#include "px_int.h" /* Posix helper functions */
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* clock_getres PORTABLE C */
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/* 6.1.7 */
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/* AUTHOR */
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/* */
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/* William E. Lamie, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This subroutine returns the Clock resolution of the Threadx real */
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/* time clock in nanoseconds */
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/* */
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/* INPUT */
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/* */
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/* clockid_t, tspec */
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/* */
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/* OUTPUT */
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/* */
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/* error code */
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/* */
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/* CALLS */
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/* */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 06-02-2021 William E. Lamie Initial Version 6.1.7 */
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/* */
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/**************************************************************************/
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INT clock_getres(clockid_t t, struct timespec * tspec)
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{
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if(t==CLOCK_REALTIME)
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{
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if(tspec) tspec->tv_nsec= NANOSECONDS_IN_CPU_TICK;
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return(OK);
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}
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else return(EINVAL);
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}
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