/* * Copyright (c) 2012 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifndef __PTHREAD_PRIVATE_H__ #define __PTHREAD_PRIVATE_H__ #include <sys/cdefs.h> #include <Availability.h> #include <pthread/tsd_private.h> /* get the thread specific errno value */ __header_always_inline int _pthread_get_errno_direct(void) { return *(int*)_pthread_getspecific_direct(_PTHREAD_TSD_SLOT_ERRNO); } /* set the thread specific errno value */ __header_always_inline void _pthread_set_errno_direct(int value) { *((int*)_pthread_getspecific_direct(_PTHREAD_TSD_SLOT_ERRNO)) = value; } __API_AVAILABLE(macos(10.9), ios(7.0)) pthread_t pthread_main_thread_np(void); struct _libpthread_functions { unsigned long version; void (*exit)(int); // added with version=1 void *(*malloc)(size_t); // added with version=2 void (*free)(void *); // added with version=2 }; /*! * @function pthread_chdir_np * * @abstract * Sets the per-thread current working directory. * * @discussion * This will set the per-thread current working directory to the provided path. * If this is used on a workqueue (dispatch) thread, it MUST be unset with * pthread_fchdir_np(-1) before returning. * * @param path * The path of the new working directory. * * @result * 0 upon success, -1 upon error and errno is set. */ __API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0)) int pthread_chdir_np(char *path); /*! * @function pthread_fchdir_np * * @abstract * Sets the per-thread current working directory. * * @discussion * This will set the per-thread current working directory to the provided * directory fd. If this is used on a workqueue (dispatch) thread, it MUST be * unset with pthread_fchdir_np(-1) before returning. * * @param fd * A file descriptor to the new working directory. Pass -1 to unset the * per-thread working directory. * * @result * 0 upon success, -1 upon error and errno is set. */ __API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0)) int pthread_fchdir_np(int fd); #ifdef _os_tsd_get_base #ifdef __LP64__ #define _PTHREAD_STRUCT_DIRECT_THREADID_OFFSET -8 #else #define _PTHREAD_STRUCT_DIRECT_THREADID_OFFSET -16 #endif /* N.B. DO NOT USE UNLESS YOU ARE REBUILT AS PART OF AN OS TRAIN WORLDBUILD */ __header_always_inline uint64_t _pthread_threadid_self_np_direct(void) { #ifndef __i386__ if (_pthread_has_direct_tsd()) { #ifdef OS_GS_RELATIVE return *(uint64_t OS_GS_RELATIVE *)(_PTHREAD_STRUCT_DIRECT_THREADID_OFFSET); #else return *(uint64_t*)((char *)_os_tsd_get_base() + _PTHREAD_STRUCT_DIRECT_THREADID_OFFSET); #endif } #endif uint64_t threadid = 0; pthread_threadid_np(NULL, &threadid); return threadid; } #endif // _os_tsd_get_base #endif // __PTHREAD_PRIVATE_H__