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188 lines
6.1 KiB
188 lines
6.1 KiB
/* /////////////////////////////////////////////////////////////////////////
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* File: unixstl/synch/sleep_functions.h
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*
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* Purpose: UNIXSTL time functions.
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*
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* Created: 2nd September 2005
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* Updated: 10th August 2009
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*
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* Home: http://stlsoft.org/
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*
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* Copyright (c) 2005-2009, Matthew Wilson and Synesis Software
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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 are met:
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*
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* - Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of
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* any contributors may be used to endorse or promote products derived from
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* 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 "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 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 OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* ////////////////////////////////////////////////////////////////////// */
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/** \file unixstl/synch/sleep_functions.h
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*
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* \brief [C, C++] Various time functions
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* (\ref group__library__synch "Synchronisation" Library).
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*/
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#ifndef UNIXSTL_INCL_UNIXSTL_SYNCH_H_SLEEP_FUNCTIONS
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#define UNIXSTL_INCL_UNIXSTL_SYNCH_H_SLEEP_FUNCTIONS
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#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
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# define UNIXSTL_VER_UNIXSTL_SYNCH_H_SLEEP_FUNCTIONS_MAJOR 2
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# define UNIXSTL_VER_UNIXSTL_SYNCH_H_SLEEP_FUNCTIONS_MINOR 0
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# define UNIXSTL_VER_UNIXSTL_SYNCH_H_SLEEP_FUNCTIONS_REVISION 5
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# define UNIXSTL_VER_UNIXSTL_SYNCH_H_SLEEP_FUNCTIONS_EDIT 17
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/* /////////////////////////////////////////////////////////////////////////
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* Includes
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*/
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#ifndef UNIXSTL_INCL_UNIXSTL_H_UNIXSTL
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# include <unixstl/unixstl.h>
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#endif /* !UNIXSTL_INCL_UNIXSTL_H_UNIXSTL */
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#ifndef STLSOFT_INCL_SYS_H_SELECT
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# define STLSOFT_INCL_SYS_H_SELECT
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# include <sys/select.h>
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#endif /* !STLSOFT_INCL_SYS_H_SELECT */
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#ifndef STLSOFT_INCL_SYS_H_TIME
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# define STLSOFT_INCL_SYS_H_TIME
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# include <sys/time.h>
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#endif /* !STLSOFT_INCL_SYS_H_TIME */
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/* /////////////////////////////////////////////////////////////////////////
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* Namespace
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*/
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#if !defined(_UNIXSTL_NO_NAMESPACE) && \
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!defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
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# if defined(_STLSOFT_NO_NAMESPACE)
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/* There is no stlsoft namespace, so must define ::unixstl */
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namespace unixstl
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{
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# else
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/* Define stlsoft::unixstl_project */
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namespace stlsoft
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{
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namespace unixstl_project
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{
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# endif /* _STLSOFT_NO_NAMESPACE */
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#endif /* !_UNIXSTL_NO_NAMESPACE */
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/* /////////////////////////////////////////////////////////////////////////
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* Functions
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*/
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/** \brief [C, C++] Puts the calling thread to sleep for the given number of
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* microseconds.
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\code
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unixstl__micro_sleep(100000); // Sleep for 0.1 seconds
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unixstl__micro_sleep(100); // Sleep for 0.1 milliseconds
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\endcode
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*
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* \param microseconds The number of microseconds to wait
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*
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* \return A boolean value indicating whether the operation was
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* successful. If not, <code>errno</code> will contain an error code
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* representing the reason for failure.
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*
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* \see unixstl::micro_sleep
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*/
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STLSOFT_INLINE us_int_t unixstl__micro_sleep(us_uint_t microseconds)
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{
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#ifdef _WIN32
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return (STLSOFT_NS_GLOBAL(Sleep)(microseconds / 1000), us_true_v);
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#else /* ? _WIN32 */
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struct timeval ts;
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ts.tv_sec = stlsoft_static_cast(long, microseconds / 1000000);
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ts.tv_usec = stlsoft_static_cast(long, microseconds % 1000000);
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return -1 != STLSOFT_NS_GLOBAL(select)(0, NULL, NULL, NULL, &ts);
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#endif /* _WIN32 */
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}
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/* /////////////////////////////////////////////////////////////////////////
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* Namespace
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*/
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#ifdef STLSOFT_DOCUMENTATION_SKIP_SECTION
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namespace unixstl
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{
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/* /////////////////////////////////////////////////////////////////////////
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* C++ functions
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*/
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#ifdef __cplusplus
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/** \brief [C++ only] Puts the calling thread to sleep for the given number of
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* microseconds.
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\code
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unixstl::micro_sleep(100000); // Sleep for 0.1 seconds
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unixstl::micro_sleep(100); // Sleep for 0.1 milliseconds
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\endcode
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*
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* \param microseconds The number of microseconds to wait
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*
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* \return A boolean value indicating whether the operation was
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* successful. If not, <code>errno</code> will contain an error code
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* representing the reason for failure.
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*/
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inline us_int_t micro_sleep(us_uint_t microseconds)
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{
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return unixstl__micro_sleep(microseconds);
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}
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#endif /* __cplusplus */
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/* /////////////////////////////////////////////////////////////////////////
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* Unit-testing
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*/
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#ifdef STLSOFT_UNITTEST
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# include "./unittest/sleep_functions_unittest_.h"
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#endif /* STLSOFT_UNITTEST */
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/* ////////////////////////////////////////////////////////////////////// */
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#ifndef _UNIXSTL_NO_NAMESPACE
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# if defined(_STLSOFT_NO_NAMESPACE) || \
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defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
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} /* namespace unixstl */
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# else
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} /* namespace unixstl_project */
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} /* namespace stlsoft */
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# endif /* _STLSOFT_NO_NAMESPACE */
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#endif /* !_UNIXSTL_NO_NAMESPACE */
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/* ////////////////////////////////////////////////////////////////////// */
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#endif /* !UNIXSTL_INCL_UNIXSTL_SYNCH_H_SLEEP_FUNCTIONS */
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/* ///////////////////////////// end of file //////////////////////////// */
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