mirror of
https://github.com/azure-rtos/threadx
synced 2025-01-30 08:02:57 +08:00
86 lines
4.9 KiB
C
86 lines
4.9 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_gettime 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 time. The source of the time */
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/* is the internal Threadx timer variable, which keeps track */
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/* of the number of ticks of the Threadx timer ISR. */
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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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/* tx_time_get ThreadX function */
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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_gettime(clockid_t t, struct timespec * tspec)
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{
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ULONG tx_time;
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if(t==CLOCK_REALTIME)
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{
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tx_time=tx_time_get();
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tspec->tv_sec = tx_time / CPU_TICKS_PER_SECOND;
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tspec->tv_nsec = (ULONG) ((tx_time - tspec->tv_sec*CPU_TICKS_PER_SECOND) * 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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