dep/src/zthread/FastRecursiveLock.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 __ZTFASTRECURSIVELOCKSELECT_H__
  24 #define __ZTFASTRECURSIVELOCKSELECT_H__
  25
  26 #include "zthread/Config.h"
  27
  28 #ifdef HAVE_CONFIG_H
  29 #  include "config.h"
  30 #endif
  31
  32
  33 // Select the correct FastRecusriveLock implementation based on
  34 // what the compilation environment has defined
  35
  36 #if defined(ZTHREAD_DUAL_LOCKS)
  37 #  include "vanilla/DualMutexRecursiveLock.h"
  38 #else
  39
  40 #  ifndef ZT_VANILLA
  41
  42 #  if defined(ZT_POSIX)
  43
  44 // Linux and Solaris have working pthreads recursive locks. These
  45 // are created differently, and there are some system don't seem to
  46 // include recursive locks at all. Several recursive implementations
  47 // are provided
  48
  49 #    if defined(__linux__)
  50 #      include "linux/FastRecursiveLock.h"
  51 #    elif defined(HAVE_MUTEXATTR_SETTYPE)
  52 #      include "solaris/FastRecursiveLock.h"
  53 #    elif defined(ZTHREAD_CONDITION_LOCKS)
  54 #      include "posix/ConditionRecursiveLock.h"
  55 #    endif
  56
  57 // Use spin locks
  58 #  elif defined(ZT_WIN32) && defined(ZTHREAD_USE_SPIN_LOCKS)
  59 #    include "win32/AtomicFastRecursiveLock.h"
  60
  61 // Use normal Mutex objects
  62 #  elif defined(ZT_WIN32) || defined(ZT_WIN9X)
  63 #    include "win32/FastRecursiveLock.h"
  64 #  endif
  65
  66 #  endif
  67
  68 #endif
  69
  70 #ifndef __ZTFASTRECURSIVELOCK_H__
  71 #include "vanilla/SimpleRecursiveLock.h"
  72 #endif
  73
  74 #endif // __ZTFASTRECURSIVELOCKSELECT_H__