/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is the Netscape Portable Runtime (NSPR). * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998-2000 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef nspr_pthread_defs_h___ #define nspr_pthread_defs_h___ #include #include "prthread.h" #if defined(PTHREADS_USER) /* ** Thread Local Storage */ extern pthread_key_t current_thread_key; extern pthread_key_t current_cpu_key; extern pthread_key_t last_thread_key; extern pthread_key_t intsoff_key; #define _MD_CURRENT_THREAD() \ ((struct PRThread *) pthread_getspecific(current_thread_key)) #define _MD_CURRENT_CPU() \ ((struct _PRCPU *) pthread_getspecific(current_cpu_key)) #define _MD_LAST_THREAD() \ ((struct PRThread *) pthread_getspecific(last_thread_key)) #define _MD_SET_CURRENT_THREAD(newval) \ pthread_setspecific(current_thread_key, (void *)newval) #define _MD_SET_CURRENT_CPU(newval) \ pthread_setspecific(current_cpu_key, (void *)newval) #define _MD_SET_LAST_THREAD(newval) \ pthread_setspecific(last_thread_key, (void *)newval) #define _MD_SET_INTSOFF(_val) #define _MD_GET_INTSOFF() 1 /* ** Initialize the thread context preparing it to execute _main. */ #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ PR_BEGIN_MACRO \ *status = PR_TRUE; \ if (SAVE_CONTEXT(_thread)) { \ (*_main)(); \ } \ _MD_SET_THR_SP(_thread, _sp); \ _thread->no_sched = 0; \ PR_END_MACRO #define _MD_SWITCH_CONTEXT(_thread) \ PR_BEGIN_MACRO \ PR_ASSERT(_thread->no_sched); \ if (!SAVE_CONTEXT(_thread)) { \ (_thread)->md.errcode = errno; \ _MD_SET_LAST_THREAD(_thread); \ _PR_Schedule(); \ } else { \ (_MD_LAST_THREAD())->no_sched = 0; \ } \ PR_END_MACRO /* ** Restore a thread context, saved by _MD_SWITCH_CONTEXT */ #define _MD_RESTORE_CONTEXT(_thread) \ PR_BEGIN_MACRO \ errno = (_thread)->md.errcode; \ _MD_SET_CURRENT_THREAD(_thread); \ _thread->no_sched = 1; \ GOTO_CONTEXT(_thread); \ PR_END_MACRO /* Machine-dependent (MD) data structures */ struct _MDThread { jmp_buf jb; int id; int errcode; pthread_t pthread; pthread_mutex_t pthread_mutex; pthread_cond_t pthread_cond; int wait; }; struct _MDThreadStack { PRInt8 notused; }; struct _MDLock { pthread_mutex_t mutex; }; struct _MDSemaphore { PRInt8 notused; }; struct _MDCVar { pthread_mutex_t mutex; }; struct _MDSegment { PRInt8 notused; }; /* * md-specific cpu structure field */ #define _PR_MD_MAX_OSFD FD_SETSIZE struct _MDCPU_Unix { PRCList ioQ; PRUint32 ioq_timeout; PRInt32 ioq_max_osfd; PRInt32 ioq_osfd_cnt; #ifndef _PR_USE_POLL fd_set fd_read_set, fd_write_set, fd_exception_set; PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], fd_exception_cnt[_PR_MD_MAX_OSFD]; #else struct pollfd *ioq_pollfds; int ioq_pollfds_size; #endif /* _PR_USE_POLL */ }; #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 struct _MDCPU { jmp_buf jb; pthread_t pthread; struct _MDCPU_Unix md_unix; }; /* #define _MD_NEW_LOCK(lock) PR_SUCCESS #define _MD_FREE_LOCK(lock) #define _MD_LOCK(lock) #define _MD_UNLOCK(lock) */ extern pthread_mutex_t _pr_heapLock; #define _PR_LOCK(lock) pthread_mutex_lock(lock) #define _PR_UNLOCK(lock) pthread_mutex_unlock(lock) #define _PR_LOCK_HEAP() { \ if (_pr_primordialCPU) { \ _PR_LOCK(_pr_heapLock); \ } #define _PR_UNLOCK_HEAP() if (_pr_primordialCPU) { \ _PR_UNLOCK(_pr_heapLock); \ } \ } NSPR_API(PRStatus) _MD_NEW_LOCK(struct _MDLock *md); NSPR_API(void) _MD_FREE_LOCK(struct _MDLock *lockp); #define _MD_LOCK(_lockp) _PR_LOCK(&(_lockp)->mutex) #define _MD_UNLOCK(_lockp) _PR_UNLOCK(&(_lockp)->mutex) #define _MD_INIT_IO() #define _MD_IOQ_LOCK() #define _MD_IOQ_UNLOCK() #define _MD_CHECK_FOR_EXIT() NSPR_API(PRStatus) _MD_InitThread(struct PRThread *thread); #define _MD_INIT_THREAD _MD_InitThread #define _MD_INIT_ATTACHED_THREAD _MD_InitThread NSPR_API(void) _MD_ExitThread(struct PRThread *thread); #define _MD_EXIT_THREAD _MD_ExitThread NSPR_API(void) _MD_SuspendThread(struct PRThread *thread); #define _MD_SUSPEND_THREAD _MD_SuspendThread NSPR_API(void) _MD_ResumeThread(struct PRThread *thread); #define _MD_RESUME_THREAD _MD_ResumeThread NSPR_API(void) _MD_SuspendCPU(struct _PRCPU *thread); #define _MD_SUSPEND_CPU _MD_SuspendCPU NSPR_API(void) _MD_ResumeCPU(struct _PRCPU *thread); #define _MD_RESUME_CPU _MD_ResumeCPU #define _MD_BEGIN_SUSPEND_ALL() #define _MD_END_SUSPEND_ALL() #define _MD_BEGIN_RESUME_ALL() #define _MD_END_RESUME_ALL() NSPR_API(void) _MD_EarlyInit(void); #define _MD_EARLY_INIT _MD_EarlyInit #define _MD_FINAL_INIT _PR_UnixInit NSPR_API(void) _MD_InitLocks(void); #define _MD_INIT_LOCKS _MD_InitLocks NSPR_API(void) _MD_CleanThread(struct PRThread *thread); #define _MD_CLEAN_THREAD _MD_CleanThread NSPR_API(PRStatus) _MD_CreateThread( struct PRThread *thread, void (*start) (void *), PRThreadPriority priority, PRThreadScope scope, PRThreadState state, PRUint32 stackSize); #define _MD_CREATE_THREAD _MD_CreateThread extern void _MD_CleanupBeforeExit(void); #define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit NSPR_API(void) _MD_InitRunningCPU(struct _PRCPU *cpu); #define _MD_INIT_RUNNING_CPU _MD_InitRunningCPU /* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and * awaken a thread which is waiting on a lock or cvar. */ NSPR_API(PRStatus) _MD_wait(struct PRThread *, PRIntervalTime timeout); #define _MD_WAIT _MD_wait NSPR_API(PRStatus) _MD_WakeupWaiter(struct PRThread *); #define _MD_WAKEUP_WAITER _MD_WakeupWaiter NSPR_API(void) _MD_SetPriority(struct _MDThread *thread, PRThreadPriority newPri); #define _MD_SET_PRIORITY _MD_SetPriority #endif /* PTHREADS_USER */ #endif /* nspr_pthread_defs_h___ */