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   1 //                              Package : omnithread
   2 // omnithread/nt.h              Created : 6/95 tjr
   3 //
   4 //    Copyright (C) 1995, 1996, 1997 Olivetti & Oracle Research Laboratory
   5 //
   6 //    This file is part of the omnithread library
   7 //
   8 //    The omnithread library is free software; you can redistribute it and/or
   9 //    modify it under the terms of the GNU Library General Public
  10 //    License as published by the Free Software Foundation; either
  11 //    version 2 of the License, or (at your option) any later version.
  12 //
  13 //    This library is distributed in the hope that it will be useful,
  14 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 //    Library General Public License for more details.
  17 //
  18 //    You should have received a copy of the GNU Library General Public
  19 //    License along with this library; if not, write to the Free
  20 //    Software Foundation, Inc., 51 Franklin Street, Boston, MA
  21 //    02110-1301, USA
  22 //
  23 //
  24 // OMNI thread implementation classes for NT threads.
  25 //
  26
  27 #ifndef __omnithread_nt_h_
  28 #define __omnithread_nt_h_
  29
  30 #ifndef WIN32_LEAN_AND_MEAN
  31 #  define WIN32_LEAN_AND_MEAN
  32 #  define OMNI_DEFINED_WIN32_LEAN_AND_MEAN
  33 #endif
  34
  35 #include <windows.h>
  36
  37 #ifdef OMNI_DEFINED_WIN32_LEAN_AND_MEAN
  38 #  undef WIN32_LEAN_AND_MEAN
  39 #  undef OMNI_DEFINED_WIN32_LEAN_AND_MEAN
  40 #endif
  41
  42
  43 #ifndef __BCPLUSPLUS__
  44 #define OMNI_THREAD_WRAPPER \
  45     unsigned __stdcall omni_thread_wrapper(LPVOID ptr);
  46 #else
  47 #define OMNI_THREAD_WRAPPER \
  48     void _USERENTRY omni_thread_wrapper(void *ptr);
  49 #endif
  50
  51 extern "C" OMNI_THREAD_WRAPPER;
  52
  53 #define OMNI_MUTEX_IMPLEMENTATION                       \
  54     CRITICAL_SECTION crit;
  55
  56 #define OMNI_MUTEX_LOCK_IMPLEMENTATION                  \
  57     EnterCriticalSection(&crit);
  58
  59 #define OMNI_MUTEX_TRYLOCK_IMPLEMENTATION               \
  60     TryEnterCriticalSection(&crit);
  61
  62 #define OMNI_MUTEX_UNLOCK_IMPLEMENTATION                \
  63     LeaveCriticalSection(&crit);
  64
  65 #define OMNI_CONDITION_IMPLEMENTATION                   \
  66     CRITICAL_SECTION crit;                              \
  67     omni_thread* waiting_head;                          \
  68     omni_thread* waiting_tail;
  69
  70 #define OMNI_SEMAPHORE_IMPLEMENTATION                   \
  71     HANDLE nt_sem;
  72
  73 #define OMNI_THREAD_IMPLEMENTATION                      \
  74     HANDLE handle;                                      \
  75     DWORD nt_id;                                        \
  76     void* return_val;                                   \
  77     HANDLE cond_semaphore;                              \
  78     omni_thread* cond_next;                             \
  79     omni_thread* cond_prev;                             \
  80     BOOL cond_waiting;                                  \
  81     static int nt_priority(priority_t);                 \
  82     friend class omni_condition;                        \
  83     friend OMNI_THREAD_WRAPPER;
  84
  85 #endif