1 /* 2 * Private threading definitions for CUPS. 3 * 4 * Copyright 2009-2017 by Apple Inc. 5 * 6 * Licensed under Apache License v2.0. See the file "LICENSE" for more information. 7 */ 8 9 #ifndef _CUPS_THREAD_PRIVATE_H_ 10 # define _CUPS_THREAD_PRIVATE_H_ 11 12 /* 13 * Include necessary headers... 14 */ 15 16 # include "config.h" 17 # include <cups/versioning.h> 18 19 20 /* 21 * C++ magic... 22 */ 23 24 # ifdef __cplusplus 25 extern "C" { 26 # endif /* __cplusplus */ 27 28 29 # ifdef HAVE_PTHREAD_H /* POSIX threading */ 30 # include <pthread.h> 31 typedef void *(*_cups_thread_func_t)(void *arg); 32 typedef pthread_t _cups_thread_t; 33 typedef pthread_cond_t _cups_cond_t; 34 typedef pthread_mutex_t _cups_mutex_t; 35 typedef pthread_rwlock_t _cups_rwlock_t; 36 typedef pthread_key_t _cups_threadkey_t; 37 # define _CUPS_COND_INITIALIZER PTHREAD_COND_INITIALIZER 38 # define _CUPS_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER 39 # define _CUPS_RWLOCK_INITIALIZER PTHREAD_RWLOCK_INITIALIZER 40 # define _CUPS_THREADKEY_INITIALIZER 0 41 # define _cupsThreadGetData(k) pthread_getspecific(k) 42 # define _cupsThreadSetData(k,p) pthread_setspecific(k,p) 43 44 # elif defined(_WIN32) /* Windows threading */ 45 # include <winsock2.h> 46 # include <windows.h> 47 typedef void *(__stdcall *_cups_thread_func_t)(void *arg); 48 typedef int _cups_thread_t; 49 typedef char _cups_cond_t; /* TODO: Implement Win32 conditional */ 50 typedef struct _cups_mutex_s 51 { 52 int m_init; /* Flag for on-demand initialization */ 53 CRITICAL_SECTION m_criticalSection; 54 /* Win32 Critical Section */ 55 } _cups_mutex_t; 56 typedef _cups_mutex_t _cups_rwlock_t; /* TODO: Implement Win32 reader/writer lock */ 57 typedef DWORD _cups_threadkey_t; 58 # define _CUPS_COND_INITIALIZER 0 59 # define _CUPS_MUTEX_INITIALIZER { 0, 0 } 60 # define _CUPS_RWLOCK_INITIALIZER { 0, 0 } 61 # define _CUPS_THREADKEY_INITIALIZER 0 62 # define _cupsThreadGetData(k) TlsGetValue(k) 63 # define _cupsThreadSetData(k,p) TlsSetValue(k,p) 64 65 # else /* No threading */ 66 typedef void *(*_cups_thread_func_t)(void *arg); 67 typedef int _cups_thread_t; 68 typedef char _cups_cond_t; 69 typedef char _cups_mutex_t; 70 typedef char _cups_rwlock_t; 71 typedef void *_cups_threadkey_t; 72 # define _CUPS_COND_INITIALIZER 0 73 # define _CUPS_MUTEX_INITIALIZER 0 74 # define _CUPS_RWLOCK_INITIALIZER 0 75 # define _CUPS_THREADKEY_INITIALIZER (void *)0 76 # define _cupsThreadGetData(k) k 77 # define _cupsThreadSetData(k,p) k=p 78 # endif /* HAVE_PTHREAD_H */ 79 80 81 /* 82 * Functions... 83 */ 84 85 extern void _cupsCondBroadcast(_cups_cond_t *cond) _CUPS_PRIVATE; 86 extern void _cupsCondInit(_cups_cond_t *cond) _CUPS_PRIVATE; 87 extern void _cupsCondWait(_cups_cond_t *cond, _cups_mutex_t *mutex, double timeout) _CUPS_PRIVATE; 88 extern void _cupsMutexInit(_cups_mutex_t *mutex) _CUPS_PRIVATE; 89 extern void _cupsMutexLock(_cups_mutex_t *mutex) _CUPS_PRIVATE; 90 extern void _cupsMutexUnlock(_cups_mutex_t *mutex) _CUPS_PRIVATE; 91 extern void _cupsRWInit(_cups_rwlock_t *rwlock) _CUPS_PRIVATE; 92 extern void _cupsRWLockRead(_cups_rwlock_t *rwlock) _CUPS_PRIVATE; 93 extern void _cupsRWLockWrite(_cups_rwlock_t *rwlock) _CUPS_PRIVATE; 94 extern void _cupsRWUnlock(_cups_rwlock_t *rwlock) _CUPS_PRIVATE; 95 extern void _cupsThreadCancel(_cups_thread_t thread) _CUPS_PRIVATE; 96 extern _cups_thread_t _cupsThreadCreate(_cups_thread_func_t func, void *arg) _CUPS_PRIVATE; 97 extern void _cupsThreadDetach(_cups_thread_t thread) _CUPS_PRIVATE; 98 extern void *_cupsThreadWait(_cups_thread_t thread) _CUPS_PRIVATE; 99 100 # ifdef __cplusplus 101 } 102 # endif /* __cplusplus */ 103 #endif /* !_CUPS_THREAD_PRIVATE_H_ */ 104