summaryrefslogtreecommitdiffstats
blob: 9b20e8602e5a9a79efab067987406fc637332368 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
#ifndef BOOST_WIN32_THREAD_PRIMITIVES_HPP
#define BOOST_WIN32_THREAD_PRIMITIVES_HPP

//  win32_thread_primitives.hpp
//
//  (C) Copyright 2005-7 Anthony Williams 
//  (C) Copyright 2007 David Deakins 
//
//  Distributed under the Boost Software License, Version 1.0. (See
//  accompanying file LICENSE_1_0.txt or copy at
//  http://www.boost.org/LICENSE_1_0.txt)

#include <boost/config.hpp>
#include <boost/throw_exception.hpp>
#include <boost/assert.hpp>
#include <boost/thread/exceptions.hpp>
#include <boost/detail/interlocked.hpp>
#include <algorithm>

#if defined( BOOST_USE_WINDOWS_H )
# include <windows.h>

namespace boost
{
    namespace detail
    {
        namespace win32
        {
            typedef ULONG_PTR ulong_ptr;
            typedef HANDLE handle;
            unsigned const infinite=INFINITE;
            unsigned const timeout=WAIT_TIMEOUT;
            handle const invalid_handle_value=INVALID_HANDLE_VALUE;
            unsigned const event_modify_state=EVENT_MODIFY_STATE;
            unsigned const synchronize=SYNCHRONIZE;

# ifdef BOOST_NO_ANSI_APIS
            using ::CreateMutexW;
            using ::CreateEventW;
            using ::OpenEventW;
            using ::CreateSemaphoreW;
# else
            using ::CreateMutexA;
            using ::CreateEventA;
            using ::OpenEventA;
            using ::CreateSemaphoreA;
# endif
            using ::CloseHandle;
            using ::ReleaseMutex;
            using ::ReleaseSemaphore;
            using ::SetEvent;
            using ::ResetEvent;
            using ::WaitForMultipleObjects;
            using ::WaitForSingleObject;
            using ::GetCurrentProcessId;
            using ::GetCurrentThreadId;
            using ::GetCurrentThread;
            using ::GetCurrentProcess;
            using ::DuplicateHandle;
            using ::SleepEx;
            using ::Sleep;
            using ::QueueUserAPC;
            using ::GetTickCount;
        }
    }
}
#elif defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ )

# ifdef UNDER_CE
#  ifndef WINAPI
#   ifndef _WIN32_WCE_EMULATION
#    define WINAPI  __cdecl     // Note this doesn't match the desktop definition
#   else
#    define WINAPI  __stdcall
#   endif
#  endif

#  ifdef __cplusplus
extern "C" {
#  endif
typedef int BOOL;
typedef unsigned long DWORD;
typedef void* HANDLE;

#  include <kfuncs.h>
#  ifdef __cplusplus
}
#  endif
# endif

namespace boost
{
    namespace detail
    {
        namespace win32
        {
            
# ifdef _WIN64
            typedef unsigned __int64 ulong_ptr;
# else
            typedef unsigned long ulong_ptr;
# endif
            typedef void* handle;
            unsigned const infinite=~0U;
            unsigned const timeout=258U;
            handle const invalid_handle_value=(handle)(-1);
            unsigned const event_modify_state=2;
            unsigned const synchronize=0x100000u;

            extern "C"
            {
                struct _SECURITY_ATTRIBUTES;
# ifdef BOOST_NO_ANSI_APIS
                __declspec(dllimport) void* __stdcall CreateMutexW(_SECURITY_ATTRIBUTES*,int,wchar_t const*);
                __declspec(dllimport) void* __stdcall CreateSemaphoreW(_SECURITY_ATTRIBUTES*,long,long,wchar_t const*);
                __declspec(dllimport) void* __stdcall CreateEventW(_SECURITY_ATTRIBUTES*,int,int,wchar_t const*);
                __declspec(dllimport) void* __stdcall OpenEventW(unsigned long,int,wchar_t const*);
# else
                __declspec(dllimport) void* __stdcall CreateMutexA(_SECURITY_ATTRIBUTES*,int,char const*);
                __declspec(dllimport) void* __stdcall CreateSemaphoreA(_SECURITY_ATTRIBUTES*,long,long,char const*);
                __declspec(dllimport) void* __stdcall CreateEventA(_SECURITY_ATTRIBUTES*,int,int,char const*);
                __declspec(dllimport) void* __stdcall OpenEventA(unsigned long,int,char const*);
# endif
                __declspec(dllimport) int __stdcall CloseHandle(void*);
                __declspec(dllimport) int __stdcall ReleaseMutex(void*);
                __declspec(dllimport) unsigned long __stdcall WaitForSingleObject(void*,unsigned long);
                __declspec(dllimport) unsigned long __stdcall WaitForMultipleObjects(unsigned long nCount,void* const * lpHandles,int bWaitAll,unsigned long dwMilliseconds);
                __declspec(dllimport) int __stdcall ReleaseSemaphore(void*,long,long*);
                __declspec(dllimport) int __stdcall DuplicateHandle(void*,void*,void*,void**,unsigned long,int,unsigned long);
                __declspec(dllimport) unsigned long __stdcall SleepEx(unsigned long,int);
                __declspec(dllimport) void __stdcall Sleep(unsigned long);
                typedef void (__stdcall *queue_user_apc_callback_function)(ulong_ptr);
                __declspec(dllimport) unsigned long __stdcall QueueUserAPC(queue_user_apc_callback_function,void*,ulong_ptr);

                __declspec(dllimport) unsigned long __stdcall GetTickCount();

# ifndef UNDER_CE
                __declspec(dllimport) unsigned long __stdcall GetCurrentProcessId();
                __declspec(dllimport) unsigned long __stdcall GetCurrentThreadId();
                __declspec(dllimport) void* __stdcall GetCurrentThread();
                __declspec(dllimport) void* __stdcall GetCurrentProcess();
                __declspec(dllimport) int __stdcall SetEvent(void*);
                __declspec(dllimport) int __stdcall ResetEvent(void*);
# else
                using ::GetCurrentProcessId;
                using ::GetCurrentThreadId;
                using ::GetCurrentThread;
                using ::GetCurrentProcess;
                using ::SetEvent;
                using ::ResetEvent;
# endif
            }
        }
    }
}
#else
# error "Win32 functions not available"
#endif

#include <boost/config/abi_prefix.hpp>

namespace boost
{
    namespace detail
    {
        namespace win32
        {
            enum event_type
            {
                auto_reset_event=false,
                manual_reset_event=true
            };
            
            enum initial_event_state
            {
                event_initially_reset=false,
                event_initially_set=true
            };
            
            inline handle create_anonymous_event(event_type type,initial_event_state state)
            {
#if !defined(BOOST_NO_ANSI_APIS)  
                handle const res=win32::CreateEventA(0,type,state,0);
#else
                handle const res=win32::CreateEventW(0,type,state,0);
#endif                
                if(!res)
                {
                    boost::throw_exception(thread_resource_error());
                }
                return res;
            }

            inline handle create_anonymous_semaphore(long initial_count,long max_count)
            {
#if !defined(BOOST_NO_ANSI_APIS)  
                handle const res=CreateSemaphoreA(0,initial_count,max_count,0);
#else
                handle const res=CreateSemaphoreW(0,initial_count,max_count,0);
#endif               
                if(!res)
                {
                    boost::throw_exception(thread_resource_error());
                }
                return res;
            }

            inline handle duplicate_handle(handle source)
            {
                handle const current_process=GetCurrentProcess();
                long const same_access_flag=2;
                handle new_handle=0;
                bool const success=DuplicateHandle(current_process,source,current_process,&new_handle,0,false,same_access_flag)!=0;
                if(!success)
                {
                    boost::throw_exception(thread_resource_error());
                }
                return new_handle;
            }

            inline void release_semaphore(handle semaphore,long count)
            {
                BOOST_VERIFY(ReleaseSemaphore(semaphore,count,0)!=0);
            }

            class handle_manager
            {
            private:
                handle handle_to_manage;
                handle_manager(handle_manager&);
                handle_manager& operator=(handle_manager&);

                void cleanup()
                {
                    if(handle_to_manage && handle_to_manage!=invalid_handle_value)
                    {
                        BOOST_VERIFY(CloseHandle(handle_to_manage));
                    }
                }
                
            public:
                explicit handle_manager(handle handle_to_manage_):
                    handle_to_manage(handle_to_manage_)
                {}
                handle_manager():
                    handle_to_manage(0)
                {}
                
                handle_manager& operator=(handle new_handle)
                {
                    cleanup();
                    handle_to_manage=new_handle;
                    return *this;
                }

                operator handle() const
                {
                    return handle_to_manage;
                }

                handle duplicate() const
                {
                    return duplicate_handle(handle_to_manage);
                }

                void swap(handle_manager& other)
                {
                    std::swap(handle_to_manage,other.handle_to_manage);
                }

                handle release()
                {
                    handle const res=handle_to_manage;
                    handle_to_manage=0;
                    return res;
                }

                bool operator!() const
                {
                    return !handle_to_manage;
                }
                
                ~handle_manager()
                {
                    cleanup();
                }
            };
            
        }
    }
}

#if defined(BOOST_MSVC) && (_MSC_VER>=1400)  && !defined(UNDER_CE)

namespace boost
{
    namespace detail
    {
        namespace win32
        {
#if _MSC_VER==1400
            extern "C" unsigned char _interlockedbittestandset(long *a,long b);
            extern "C" unsigned char _interlockedbittestandreset(long *a,long b);
#else
            extern "C" unsigned char _interlockedbittestandset(volatile long *a,long b);
            extern "C" unsigned char _interlockedbittestandreset(volatile long *a,long b);
#endif

#pragma intrinsic(_interlockedbittestandset)
#pragma intrinsic(_interlockedbittestandreset)

            inline bool interlocked_bit_test_and_set(long* x,long bit)
            {
                return _interlockedbittestandset(x,bit)!=0;
            }

            inline bool interlocked_bit_test_and_reset(long* x,long bit)
            {
                return _interlockedbittestandreset(x,bit)!=0;
            }
            
        }
    }
}
#define BOOST_THREAD_BTS_DEFINED
#elif (defined(BOOST_MSVC) || defined(BOOST_INTEL_WIN)) && defined(_M_IX86)
namespace boost
{
    namespace detail
    {
        namespace win32
        {
            inline bool interlocked_bit_test_and_set(long* x,long bit)
            {
                __asm {
                    mov eax,bit;
                    mov edx,x;
                    lock bts [edx],eax;
                    setc al;
                };          
            }

            inline bool interlocked_bit_test_and_reset(long* x,long bit)
            {
                __asm {
                    mov eax,bit;
                    mov edx,x;
                    lock btr [edx],eax;
                    setc al;
                };          
            }
            
        }
    }
}
#define BOOST_THREAD_BTS_DEFINED
#endif

#ifndef BOOST_THREAD_BTS_DEFINED

namespace boost
{
    namespace detail
    {
        namespace win32
        {
            inline bool interlocked_bit_test_and_set(long* x,long bit)
            {
                long const value=1<<bit;
                long old=*x;
                do
                {
                    long const current=BOOST_INTERLOCKED_COMPARE_EXCHANGE(x,old|value,old);
                    if(current==old)
                    {
                        break;
                    }
                    old=current;
                }
                while(true);
                return (old&value)!=0;
            }

            inline bool interlocked_bit_test_and_reset(long* x,long bit)
            {
                long const value=1<<bit;
                long old=*x;
                do
                {
                    long const current=BOOST_INTERLOCKED_COMPARE_EXCHANGE(x,old&~value,old);
                    if(current==old)
                    {
                        break;
                    }
                    old=current;
                }
                while(true);
                return (old&value)!=0;
            }
        }
    }
}
#endif

#include <boost/config/abi_suffix.hpp>

#endif