cups/thread-private.h

   1 /*
   2  * "$Id: thread-private.h 11642 2014-02-27 15:57:59Z msweet $"
   3  *
   4  *   Private threading definitions for CUPS.
   5  *
   6  *   Copyright 2009-2012 by Apple Inc.
   7  *
   8  *   These coded instructions, statements, and computer programs are the
   9  *   property of Apple Inc. and are protected by Federal copyright
  10  *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  11  *   which should have been included with this file.  If this file is
  12  *   file is missing or damaged, see the license at "http://www.cups.org/".
  13  *
  14  *   This file is subject to the Apple OS-Developed Software exception.
  15  */
  16
  17 #ifndef _CUPS_THREAD_PRIVATE_H_
  18 #  define _CUPS_THREAD_PRIVATE_H_
  19
  20 /*
  21  * Include necessary headers...
  22  */
  23
  24 #  include "config.h"
  25
  26
  27 /*
  28  * C++ magic...
  29  */
  30
  31 #  ifdef __cplusplus
  32 extern "C" {
  33 #  endif /* __cplusplus */
  34
  35
  36 #  ifdef HAVE_PTHREAD_H
  37 #    include <pthread.h>
  38 typedef void *(*_cups_thread_func_t)(void *arg);
  39 typedef pthread_mutex_t _cups_mutex_t;
  40 typedef pthread_rwlock_t _cups_rwlock_t;
  41 typedef pthread_key_t   _cups_threadkey_t;
  42 #    define _CUPS_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
  43 #    define _CUPS_RWLOCK_INITIALIZER PTHREAD_RWLOCK_INITIALIZER
  44 #    define _CUPS_THREADKEY_INITIALIZER -1
  45 #    define _cupsThreadGetData(k) pthread_getspecific(k)
  46 #    define _cupsThreadSetData(k,p) pthread_setspecific(k,p)
  47
  48 #  elif defined(WIN32)
  49 #    include <winsock2.h>
  50 #    include <windows.h>
  51 typedef void *(__stdcall *_cups_thread_func_t)(void *arg);
  52 typedef struct _cups_mutex_s
  53 {
  54   int                   m_init;         /* Flag for on-demand initialization */
  55   CRITICAL_SECTION      m_criticalSection;
  56                                         /* Win32 Critical Section */
  57 } _cups_mutex_t;
  58 typedef _cups_mutex_t _cups_rwlock_t;   /* TODO: Implement Win32 reader/writer lock */
  59 typedef DWORD   _cups_threadkey_t;
  60 #    define _CUPS_MUTEX_INITIALIZER { 0, 0 }
  61 #    define _CUPS_RWLOCK_INITIALIZER { 0, 0 }
  62 #    define _CUPS_THREADKEY_INITIALIZER 0
  63 #    define _cupsThreadGetData(k) TlsGetValue(k)
  64 #    define _cupsThreadSetData(k,p) TlsSetValue(k,p)
  65
  66 #  else
  67 typedef void    *(*_cups_thread_func_t)(void *arg);
  68 typedef char    _cups_mutex_t;
  69 typedef char    _cups_rwlock_t;
  70 typedef void    *_cups_threadkey_t;
  71 #    define _CUPS_MUTEX_INITIALIZER 0
  72 #    define _CUPS_RWLOCK_INITIALIZER 0
  73 #    define _CUPS_THREADKEY_INITIALIZER (void *)0
  74 #    define _cupsThreadGetData(k) k
  75 #    define _cupsThreadSetData(k,p) k=p
  76 #  endif /* HAVE_PTHREAD_H */
  77
  78
  79 /*
  80  * Functions...
  81  */
  82
  83 extern void     _cupsMutexInit(_cups_mutex_t *mutex);
  84 extern void     _cupsMutexLock(_cups_mutex_t *mutex);
  85 extern void     _cupsMutexUnlock(_cups_mutex_t *mutex);
  86 extern void     _cupsRWInit(_cups_rwlock_t *rwlock);
  87 extern void     _cupsRWLockRead(_cups_rwlock_t *rwlock);
  88 extern void     _cupsRWLockWrite(_cups_rwlock_t *rwlock);
  89 extern void     _cupsRWUnlock(_cups_rwlock_t *rwlock);
  90 extern int      _cupsThreadCreate(_cups_thread_func_t func, void *arg);
  91
  92
  93 #  ifdef __cplusplus
  94 }
  95 #  endif /* __cplusplus */
  96 #endif /* !_CUPS_THREAD_PRIVATE_H_ */
  97
  98 /*
  99  * End of "$Id: thread-private.h 11642 2014-02-27 15:57:59Z msweet $".
 100  */