dep/src/zthread/FastLock.h

   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 __ZTFASTLOCKSELECT_H__
  24 #define __ZTFASTLOCKSELECT_H__
  25
  26 #include "zthread/Config.h"
  27
  28 #ifdef HAVE_CONFIG_H
  29 #include "config.h"
  30 #endif
  31
  32 // Select the correct FastLock implementation based on
  33 // what the compilation environment has defined
  34
  35 #if defined(ZT_POSIX)
  36
  37 #  if defined(HAVE_ATOMIC_LINUX)
  38
  39 #    if defined(ZTHREAD_USE_SPIN_LOCKS)
  40 #      include "linux/AtomicFastLock.h"
  41 #    endif
  42
  43 #  endif
  44
  45 #  include "posix/FastLock.h"
  46
  47 // Use spin locks
  48 #elif defined(ZTHREAD_USE_SPIN_LOCKS)
  49
  50 #  if defined(ZT_WIN9X)
  51 #    include "win9x/AtomicFastLock.h"
  52 #  elif defined(ZT_WIN32)
  53 #    include "win32/AtomicFastLock.h"
  54 #  endif
  55
  56 // Use normal Mutex objects
  57 #elif defined(ZT_WIN9X) || defined(ZT_WIN32)
  58
  59 #  include "win32/FastLock.h"
  60
  61 #elif defined(ZT_MACOS)
  62
  63 #  include "macos/FastLock.h"
  64
  65 #endif
  66
  67 #ifndef __ZTFASTLOCK_H__
  68 #error "No FastLock implementation could be selected"
  69 #endif
  70
  71 #endif // __ZTFASTLOCKSELECT_H__