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