1 /* 2 * Private threading definitions for CUPS. 3 * 4 * Copyright 2009-2017 by Apple Inc. 5 * 6 * These coded instructions, statements, and computer programs are the 7 * property of Apple Inc. and are protected by Federal copyright 8 * law. Distribution and use rights are outlined in the file "LICENSE.txt" 9 * which should have been included with this file. If this file is 10 * missing or damaged, see the license at "http://www.cups.org/". 11 * 12 * This file is subject to the Apple OS-Developed Software exception. 13 */ 14 15 #ifndef _CUPS_THREAD_PRIVATE_H_ 16 # define _CUPS_THREAD_PRIVATE_H_ 17 18 /* 19 * Include necessary headers... 20 */ 21 22 # include "config.h" 23 24 25 /* 26 * C++ magic... 27 */ 28 29 # ifdef __cplusplus 30 extern "C" { 31 # endif /* __cplusplus */ 32 33 34 # ifdef HAVE_PTHREAD_H /* POSIX threading */ 35 # include <pthread.h> 36 typedef void *(*_cups_thread_func_t)(void *arg); 37 typedef pthread_t _cups_thread_t; 38 typedef pthread_cond_t _cups_cond_t; 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_COND_INITIALIZER PTHREAD_COND_INITIALIZER 43 # define _CUPS_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER 44 # define _CUPS_RWLOCK_INITIALIZER PTHREAD_RWLOCK_INITIALIZER 45 # define _CUPS_THREADKEY_INITIALIZER 0 46 # define _cupsThreadGetData(k) pthread_getspecific(k) 47 # define _cupsThreadSetData(k,p) pthread_setspecific(k,p) 48 49 # elif defined(WIN32) /* Windows threading */ 50 # include <winsock2.h> 51 # include <windows.h> 52 typedef void *(__stdcall *_cups_thread_func_t)(void *arg); 53 typedef int _cups_thread_t; 54 typedef char _cups_cond_t; /* TODO: Implement Win32 conditional */ 55 typedef struct _cups_mutex_s 56 { 57 int m_init; /* Flag for on-demand initialization */ 58 CRITICAL_SECTION m_criticalSection; 59 /* Win32 Critical Section */ 60 } _cups_mutex_t; 61 typedef _cups_mutex_t _cups_rwlock_t; /* TODO: Implement Win32 reader/writer lock */ 62 typedef DWORD _cups_threadkey_t; 63 # define _CUPS_COND_INITIALIZER 0 64 # define _CUPS_MUTEX_INITIALIZER { 0, 0 } 65 # define _CUPS_RWLOCK_INITIALIZER { 0, 0 } 66 # define _CUPS_THREADKEY_INITIALIZER 0 67 # define _cupsThreadGetData(k) TlsGetValue(k) 68 # define _cupsThreadSetData(k,p) TlsSetValue(k,p) 69 70 # else /* No threading */ 71 typedef void *(*_cups_thread_func_t)(void *arg); 72 typedef int _cups_thread_t; 73 typedef char _cups_cond_t; 74 typedef char _cups_mutex_t; 75 typedef char _cups_rwlock_t; 76 typedef void *_cups_threadkey_t; 77 # define _CUPS_COND_INITIALIZER 0 78 # define _CUPS_MUTEX_INITIALIZER 0 79 # define _CUPS_RWLOCK_INITIALIZER 0 80 # define _CUPS_THREADKEY_INITIALIZER (void *)0 81 # define _cupsThreadGetData(k) k 82 # define _cupsThreadSetData(k,p) k=p 83 # endif /* HAVE_PTHREAD_H */ 84 85 86 /* 87 * Functions... 88 */ 89 90 extern void _cupsCondBroadcast(_cups_cond_t *cond); 91 extern void _cupsCondInit(_cups_cond_t *cond); 92 extern void _cupsCondWait(_cups_cond_t *cond, _cups_mutex_t *mutex, double timeout); 93 extern void _cupsMutexInit(_cups_mutex_t *mutex); 94 extern void _cupsMutexLock(_cups_mutex_t *mutex); 95 extern void _cupsMutexUnlock(_cups_mutex_t *mutex); 96 extern void _cupsRWInit(_cups_rwlock_t *rwlock); 97 extern void _cupsRWLockRead(_cups_rwlock_t *rwlock); 98 extern void _cupsRWLockWrite(_cups_rwlock_t *rwlock); 99 extern void _cupsRWUnlock(_cups_rwlock_t *rwlock); 100 extern void _cupsThreadCancel(_cups_thread_t thread); 101 extern _cups_thread_t _cupsThreadCreate(_cups_thread_func_t func, void *arg); 102 extern void _cupsThreadDetach(_cups_thread_t thread); 103 extern void *_cupsThreadWait(_cups_thread_t thread); 104 105 # ifdef __cplusplus 106 } 107 # endif /* __cplusplus */ 108 #endif /* !_CUPS_THREAD_PRIVATE_H_ */ 109
