_nspr_pthread.h
上传用户:goldcmy89
上传日期:2017-12-03
资源大小:2246k
文件大小:9k
- /* -*- 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 <pthread.h>
- #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___ */