dep/src/zthread/ThreadOps.cxx

   1 /*
   2  * Copyright (c) 2005, Eric Crahen
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is furnished
   9  * to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in all
  12  * copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20  *
  21  */
  22
  23 #ifndef __ZTTHREADOPSIMPLSELECT_CXX__
  24 #define __ZTTHREADOPSIMPLSELECT_CXX__
  25
  26 #include "ThreadOps.h"
  27
  28 // This file will select an implementation for a ThreadOps based on
  29 // what ThreadOps.h selects. This method is for selecting the
  30 // source files, to improve portability. Currently, the project is
  31 // based on the autoconf tool-set, which doesn't support conditional
  32 // compilation well. Additionally, this should make the library
  33 // easier to port since its working around conditional compilation
  34 // by using C++ features and people won't have to fiddle around with
  35 // their make tool as much to compile the source
  36
  37 #ifdef HAVE_CONFIG_H
  38 #  include "config.h"
  39 #endif
  40
  41 // Check for sched_yield()
  42
  43 #if !defined(HAVE_SCHED_YIELD)
  44 #  if defined(HAVE_UNISTD_H)
  45 #    include <unistd.h>
  46 #    if defined(_POSIX_PRIORITY_SCHEDULING)
  47 #      define HAVE_SCHED_YIELD 1
  48 #    endif
  49 #  endif
  50 #endif
  51
  52 #include ZT_THREADOPS_IMPLEMENTATION
  53
  54 #endif