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Threads.h
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上传日期：2015-12-05
资源大小：22823k
文件大小：16k
源码类别：

多媒体编程

开发平台：

Visual C++

Threads.h：源码内容
  1. /*
  2.      File:       Threads.h
  3.  
  4.      Contains:   Thread Manager Interfaces.
  5.  
  6.      Version:    Technology: Mac OS 8
  7.                  Release:    QuickTime 6.0.2
  8.  
  9.      Copyright:  (c) 1991-2001 by Apple Computer, Inc., all rights reserved.
  10.  
  11.      Bugs?:      For bug reports, consult the following page on
  12.                  the World Wide Web:
  13.  
  14.                      http://developer.apple.com/bugreporter/
  15.  
  16. */
  17. #ifndef __THREADS__
  18. #define __THREADS__
  20. #ifndef __MACTYPES__
  21. #include "MacTypes.h"
  22. #endif
  24. #ifndef __MIXEDMODE__
  25. #include "MixedMode.h"
  26. #endif
  28. #ifndef __MACERRORS__
  29. #include "MacErrors.h"
  30. #endif
  35. #if PRAGMA_ONCE
  36. #pragma once
  37. #endif
  39. #ifdef __cplusplus
  40. extern "C" {
  41. #endif
  43. #if PRAGMA_IMPORT
  44. #pragma import on
  45. #endif
  47. #if PRAGMA_STRUCT_ALIGN
  48.     #pragma options align=mac68k
  49. #elif PRAGMA_STRUCT_PACKPUSH
  50.     #pragma pack(push, 2)
  51. #elif PRAGMA_STRUCT_PACK
  52.     #pragma pack(2)
  53. #endif
  55. /* Thread states*/
  57. typedef UInt16 ThreadState;
  58. enum {
  59.     kReadyThreadState           = 0,
  60.     kStoppedThreadState         = 1,
  61.     kRunningThreadState         = 2
  62. };
  64. /* Error codes have been meoved to Errors.(pah)*/
  66. /* Thread environment characteristics*/
  67. typedef void *                          ThreadTaskRef;
  68. /* Thread characteristics*/
  70. typedef UInt32 ThreadStyle;
  71. enum {
  72.     kCooperativeThread          = 1L << 0,
  73.     kPreemptiveThread           = 1L << 1
  74. };
  76. /* Thread identifiers*/
  78. typedef UInt32 ThreadID;
  79. enum {
  80.     kNoThreadID                 = 0,
  81.     kCurrentThreadID            = 1,
  82.     kApplicationThreadID        = 2
  83. };
  85. /* Options when creating a thread*/
  87. typedef UInt32 ThreadOptions;
  88. enum {
  89.     kNewSuspend                 = (1 << 0),
  90.     kUsePremadeThread           = (1 << 1),
  91.     kCreateIfNeeded             = (1 << 2),
  92.     kFPUNotNeeded               = (1 << 3),
  93.     kExactMatchThread           = (1 << 4)
  94. };
  96. /* Information supplied to the custom scheduler*/
  98. struct SchedulerInfoRec {
  99.     UInt32                          InfoRecSize;
  100.     ThreadID                        CurrentThreadID;
  101.     ThreadID                        SuggestedThreadID;
  102.     ThreadID                        InterruptedCoopThreadID;
  103. };
  104. typedef struct SchedulerInfoRec         SchedulerInfoRec;
  105. typedef SchedulerInfoRec *              SchedulerInfoRecPtr;
  107. /*
  108.     The following ProcPtrs cannot be interchanged with UniversalProcPtrs because
  109.     of differences between 680x0 and PowerPC runtime architectures with regard to
  110.     the implementation of the Thread Manager.
  111.  */
  113. typedef void *                          voidPtr;
  114. /* Prototype for thread's entry (main) routine*/
  115. typedef CALLBACK_API( voidPtr , ThreadEntryProcPtr )(void *threadParam);
  116. /* Prototype for custom thread scheduler routine*/
  117. typedef CALLBACK_API( ThreadID , ThreadSchedulerProcPtr )(SchedulerInfoRecPtr schedulerInfo);
  118. /* Prototype for custom thread switcher routine*/
  119. typedef CALLBACK_API( void , ThreadSwitchProcPtr )(ThreadID threadBeingSwitched, void *switchProcParam);
  120. /* Prototype for thread termination notification routine*/
  121. typedef CALLBACK_API( void , ThreadTerminationProcPtr )(ThreadID threadTerminated, void *terminationProcParam);
  122. /* Prototype for debugger NewThread notification*/
  123. typedef CALLBACK_API( void , DebuggerNewThreadProcPtr )(ThreadID threadCreated);
  124. /* Prototype for debugger DisposeThread notification*/
  125. typedef CALLBACK_API( void , DebuggerDisposeThreadProcPtr )(ThreadID threadDeleted);
  126. /* Prototype for debugger schedule notification*/
  127. typedef CALLBACK_API( ThreadID , DebuggerThreadSchedulerProcPtr )(SchedulerInfoRecPtr schedulerInfo);
  128. typedef TVECTOR_UPP_TYPE(ThreadEntryProcPtr)                    ThreadEntryUPP;
  129. typedef TVECTOR_UPP_TYPE(ThreadSchedulerProcPtr)                ThreadSchedulerUPP;
  130. typedef TVECTOR_UPP_TYPE(ThreadSwitchProcPtr)                   ThreadSwitchUPP;
  131. typedef TVECTOR_UPP_TYPE(ThreadTerminationProcPtr)              ThreadTerminationUPP;
  132. typedef TVECTOR_UPP_TYPE(DebuggerNewThreadProcPtr)              DebuggerNewThreadUPP;
  133. typedef TVECTOR_UPP_TYPE(DebuggerDisposeThreadProcPtr)          DebuggerDisposeThreadUPP;
  134. typedef TVECTOR_UPP_TYPE(DebuggerThreadSchedulerProcPtr)        DebuggerThreadSchedulerUPP;
  135. #if OPAQUE_UPP_TYPES
  136.     EXTERN_API(ThreadEntryUPP)
  137.     NewThreadEntryUPP              (ThreadEntryProcPtr      userRoutine);
  139.     EXTERN_API(ThreadSchedulerUPP)
  140.     NewThreadSchedulerUPP          (ThreadSchedulerProcPtr  userRoutine);
  142.     EXTERN_API(ThreadSwitchUPP)
  143.     NewThreadSwitchUPP             (ThreadSwitchProcPtr     userRoutine);
  145.     EXTERN_API(ThreadTerminationUPP)
  146.     NewThreadTerminationUPP        (ThreadTerminationProcPtr userRoutine);
  148.     EXTERN_API(DebuggerNewThreadUPP)
  149.     NewDebuggerNewThreadUPP        (DebuggerNewThreadProcPtr userRoutine);
  151.     EXTERN_API(DebuggerDisposeThreadUPP)
  152.     NewDebuggerDisposeThreadUPP    (DebuggerDisposeThreadProcPtr userRoutine);
  154.     EXTERN_API(DebuggerThreadSchedulerUPP)
  155.     NewDebuggerThreadSchedulerUPP    (DebuggerThreadSchedulerProcPtr userRoutine);
  157.     EXTERN_API(void)
  158.     DisposeThreadEntryUPP          (ThreadEntryUPP          userUPP);
  160.     EXTERN_API(void)
  161.     DisposeThreadSchedulerUPP      (ThreadSchedulerUPP      userUPP);
  163.     EXTERN_API(void)
  164.     DisposeThreadSwitchUPP         (ThreadSwitchUPP         userUPP);
  166.     EXTERN_API(void)
  167.     DisposeThreadTerminationUPP    (ThreadTerminationUPP    userUPP);
  169.     EXTERN_API(void)
  170.     DisposeDebuggerNewThreadUPP    (DebuggerNewThreadUPP    userUPP);
  172.     EXTERN_API(void)
  173.     DisposeDebuggerDisposeThreadUPP    (DebuggerDisposeThreadUPP userUPP);
  175.     EXTERN_API(void)
  176.     DisposeDebuggerThreadSchedulerUPP    (DebuggerThreadSchedulerUPP userUPP);
  178.     EXTERN_API(voidPtr)
  179.     InvokeThreadEntryUPP           (void *                  threadParam,
  180.                                     ThreadEntryUPP          userUPP);
  182.     EXTERN_API(ThreadID)
  183.     InvokeThreadSchedulerUPP       (SchedulerInfoRecPtr     schedulerInfo,
  184.                                     ThreadSchedulerUPP      userUPP);
  186.     EXTERN_API(void)
  187.     InvokeThreadSwitchUPP          (ThreadID                threadBeingSwitched,
  188.                                     void *                  switchProcParam,
  189.                                     ThreadSwitchUPP         userUPP);
  191.     EXTERN_API(void)
  192.     InvokeThreadTerminationUPP     (ThreadID                threadTerminated,
  193.                                     void *                  terminationProcParam,
  194.                                     ThreadTerminationUPP    userUPP);
  196.     EXTERN_API(void)
  197.     InvokeDebuggerNewThreadUPP     (ThreadID                threadCreated,
  198.                                     DebuggerNewThreadUPP    userUPP);
  200.     EXTERN_API(void)
  201.     InvokeDebuggerDisposeThreadUPP    (ThreadID             threadDeleted,
  202.                                     DebuggerDisposeThreadUPP userUPP);
  204.     EXTERN_API(ThreadID)
  205.     InvokeDebuggerThreadSchedulerUPP    (SchedulerInfoRecPtr schedulerInfo,
  206.                                     DebuggerThreadSchedulerUPP userUPP);
  208. #else
  209.     #define NewThreadEntryUPP(userRoutine)                          (userRoutine)
  210.     #define NewThreadSchedulerUPP(userRoutine)                      (userRoutine)
  211.     #define NewThreadSwitchUPP(userRoutine)                         (userRoutine)
  212.     #define NewThreadTerminationUPP(userRoutine)                    (userRoutine)
  213.     #define NewDebuggerNewThreadUPP(userRoutine)                    (userRoutine)
  214.     #define NewDebuggerDisposeThreadUPP(userRoutine)                (userRoutine)
  215.     #define NewDebuggerThreadSchedulerUPP(userRoutine)              (userRoutine)
  216.     #define DisposeThreadEntryUPP(userUPP)                          
  217.     #define DisposeThreadSchedulerUPP(userUPP)                      
  218.     #define DisposeThreadSwitchUPP(userUPP)                         
  219.     #define DisposeThreadTerminationUPP(userUPP)                    
  220.     #define DisposeDebuggerNewThreadUPP(userUPP)                    
  221.     #define DisposeDebuggerDisposeThreadUPP(userUPP)                
  222.     #define DisposeDebuggerThreadSchedulerUPP(userUPP)              
  223.     #define InvokeThreadEntryUPP(threadParam, userUPP)              (*userUPP)(threadParam)
  224.     #define InvokeThreadSchedulerUPP(schedulerInfo, userUPP)        (*userUPP)(schedulerInfo)
  225.     #define InvokeThreadSwitchUPP(threadBeingSwitched, switchProcParam, userUPP)  (*userUPP)(threadBeingSwitched, switchProcParam)
  226.     #define InvokeThreadTerminationUPP(threadTerminated, terminationProcParam, userUPP)  (*userUPP)(threadTerminated, terminationProcParam)
  227.     #define InvokeDebuggerNewThreadUPP(threadCreated, userUPP)      (*userUPP)(threadCreated)
  228.     #define InvokeDebuggerDisposeThreadUPP(threadDeleted, userUPP)  (*userUPP)(threadDeleted)
  229.     #define InvokeDebuggerThreadSchedulerUPP(schedulerInfo, userUPP)  (*userUPP)(schedulerInfo)
  230. #endif
  231. /*
  232.    Thread Manager function pointers (TPP):
  233.    on classic 68k use raw function pointers (same as UPP's)
  234.    on classic PowerPC, use raw function pointers
  235.    on CFM-68K, use UPP's
  236.    on Carbon, use UPP's
  237. */
  239. #if TARGET_OS_MAC && TARGET_CPU_PPC && !TARGET_API_MAC_CARBON
  240. /* use raw function pointers*/
  241. typedef ThreadEntryProcPtr              ThreadEntryTPP;
  242. typedef ThreadSchedulerProcPtr          ThreadSchedulerTPP;
  243. typedef ThreadSwitchProcPtr             ThreadSwitchTPP;
  244. typedef ThreadTerminationProcPtr        ThreadTerminationTPP;
  245. typedef DebuggerNewThreadProcPtr        DebuggerNewThreadTPP;
  246. typedef DebuggerDisposeThreadProcPtr    DebuggerDisposeThreadTPP;
  247. typedef DebuggerThreadSchedulerProcPtr  DebuggerThreadSchedulerTPP;
  248. #else
  249. /* use UPP's*/
  250. typedef ThreadEntryUPP                  ThreadEntryTPP;
  251. typedef ThreadSchedulerUPP              ThreadSchedulerTPP;
  252. typedef ThreadSwitchUPP                 ThreadSwitchTPP;
  253. typedef ThreadTerminationUPP            ThreadTerminationTPP;
  254. typedef DebuggerNewThreadUPP            DebuggerNewThreadTPP;
  255. typedef DebuggerDisposeThreadUPP        DebuggerDisposeThreadTPP;
  256. typedef DebuggerThreadSchedulerUPP      DebuggerThreadSchedulerTPP;
  257. #endif  /* TARGET_OS_MAC && TARGET_CPU_PPC && !TARGET_API_MAC_CARBON */
  259. EXTERN_API( OSErr )
  260. NewThread                       (ThreadStyle            threadStyle,
  261.                                  ThreadEntryTPP         threadEntry,
  262.                                  void *                 threadParam,
  263.                                  Size                   stackSize,
  264.                                  ThreadOptions          options,
  265.                                  void **                threadResult,
  266.                                  ThreadID *             threadMade)                         THREEWORDINLINE(0x303C, 0x0E03, 0xABF2);
  268. EXTERN_API( OSErr )
  269. SetThreadScheduler              (ThreadSchedulerTPP     threadScheduler)                    THREEWORDINLINE(0x303C, 0x0209, 0xABF2);
  271. EXTERN_API( OSErr )
  272. SetThreadSwitcher               (ThreadID               thread,
  273.                                  ThreadSwitchTPP        threadSwitcher,
  274.                                  void *                 switchProcParam,
  275.                                  Boolean                inOrOut)                            THREEWORDINLINE(0x303C, 0x070A, 0xABF2);
  277. EXTERN_API( OSErr )
  278. SetThreadTerminator             (ThreadID               thread,
  279.                                  ThreadTerminationTPP   threadTerminator,
  280.                                  void *                 terminationProcParam)               THREEWORDINLINE(0x303C, 0x0611, 0xABF2);
  282. EXTERN_API( OSErr )
  283. SetDebuggerNotificationProcs    (DebuggerNewThreadTPP   notifyNewThread,
  284.                                  DebuggerDisposeThreadTPP  notifyDisposeThread,
  285.                                  DebuggerThreadSchedulerTPP  notifyThreadScheduler)         THREEWORDINLINE(0x303C, 0x060D, 0xABF2);
  287. EXTERN_API( OSErr )
  288. CreateThreadPool                (ThreadStyle            threadStyle,
  289.                                  SInt16                 numToCreate,
  290.                                  Size                   stackSize)                          THREEWORDINLINE(0x303C, 0x0501, 0xABF2);
  292. EXTERN_API( OSErr )
  293. GetFreeThreadCount              (ThreadStyle            threadStyle,
  294.                                  SInt16 *               freeCount)                          THREEWORDINLINE(0x303C, 0x0402, 0xABF2);
  296. EXTERN_API( OSErr )
  297. GetSpecificFreeThreadCount      (ThreadStyle            threadStyle,
  298.                                  Size                   stackSize,
  299.                                  SInt16 *               freeCount)                          THREEWORDINLINE(0x303C, 0x0615, 0xABF2);
  301. EXTERN_API( OSErr )
  302. GetDefaultThreadStackSize       (ThreadStyle            threadStyle,
  303.                                  Size *                 stackSize)                          THREEWORDINLINE(0x303C, 0x0413, 0xABF2);
  305. EXTERN_API( OSErr )
  306. ThreadCurrentStackSpace         (ThreadID               thread,
  307.                                  UInt32 *               freeStack)                          THREEWORDINLINE(0x303C, 0x0414, 0xABF2);
  309. EXTERN_API( OSErr )
  310. DisposeThread                   (ThreadID               threadToDump,
  311.                                  void *                 threadResult,
  312.                                  Boolean                recycleThread)                      THREEWORDINLINE(0x303C, 0x0504, 0xABF2);
  314. EXTERN_API( OSErr )
  315. YieldToThread                   (ThreadID               suggestedThread)                    THREEWORDINLINE(0x303C, 0x0205, 0xABF2);
  317. EXTERN_API( OSErr )
  318. YieldToAnyThread                (void)                                                      FOURWORDINLINE(0x42A7, 0x303C, 0x0205, 0xABF2);
  320. #if TARGET_OS_MAC
  321.     #define MacGetCurrentThread GetCurrentThread
  322. #endif
  323. EXTERN_API( OSErr )
  324. MacGetCurrentThread             (ThreadID *             currentThreadID)                    THREEWORDINLINE(0x303C, 0x0206, 0xABF2);
  326. EXTERN_API( OSErr )
  327. GetThreadState                  (ThreadID               threadToGet,
  328.                                  ThreadState *          threadState)                        THREEWORDINLINE(0x303C, 0x0407, 0xABF2);
  330. EXTERN_API( OSErr )
  331. SetThreadState                  (ThreadID               threadToSet,
  332.                                  ThreadState            newState,
  333.                                  ThreadID               suggestedThread)                    THREEWORDINLINE(0x303C, 0x0508, 0xABF2);
  335. EXTERN_API( OSErr )
  336. SetThreadStateEndCritical       (ThreadID               threadToSet,
  337.                                  ThreadState            newState,
  338.                                  ThreadID               suggestedThread)                    THREEWORDINLINE(0x303C, 0x0512, 0xABF2);
  340. EXTERN_API( OSErr )
  341. ThreadBeginCritical             (void)                                                      THREEWORDINLINE(0x303C, 0x000B, 0xABF2);
  343. EXTERN_API( OSErr )
  344. ThreadEndCritical               (void)                                                      THREEWORDINLINE(0x303C, 0x000C, 0xABF2);
  346. EXTERN_API( OSErr )
  347. GetThreadCurrentTaskRef         (ThreadTaskRef *        threadTRef)                         THREEWORDINLINE(0x303C, 0x020E, 0xABF2);
  349. EXTERN_API( OSErr )
  350. GetThreadStateGivenTaskRef      (ThreadTaskRef          threadTRef,
  351.                                  ThreadID               threadToGet,
  352.                                  ThreadState *          threadState)                        THREEWORDINLINE(0x303C, 0x060F, 0xABF2);
  354. EXTERN_API( OSErr )
  355. SetThreadReadyGivenTaskRef      (ThreadTaskRef          threadTRef,
  356.                                  ThreadID               threadToSet)                        THREEWORDINLINE(0x303C, 0x0410, 0xABF2);
  359. #if PRAGMA_STRUCT_ALIGN
  360.     #pragma options align=reset
  361. #elif PRAGMA_STRUCT_PACKPUSH
  362.     #pragma pack(pop)
  363. #elif PRAGMA_STRUCT_PACK
  364.     #pragma pack()
  365. #endif
  367. #ifdef PRAGMA_IMPORT_OFF
  368. #pragma import off
  369. #elif PRAGMA_IMPORT
  370. #pragma import reset
  371. #endif
  373. #ifdef __cplusplus
  374. }
  375. #endif
  377. #endif /* __THREADS__ */