michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nspr_pthread_defs_h___
michael@0: #define nspr_pthread_defs_h___
michael@0: 
michael@0: #include <pthread.h>
michael@0: #include "prthread.h"
michael@0: 
michael@0: #if defined(PTHREADS_USER)
michael@0: /*
michael@0: ** Thread Local Storage 
michael@0: */
michael@0: extern pthread_key_t current_thread_key;
michael@0: extern pthread_key_t current_cpu_key;
michael@0: extern pthread_key_t last_thread_key;
michael@0: extern pthread_key_t intsoff_key;
michael@0: 
michael@0: #define _MD_CURRENT_THREAD() 			\
michael@0: 			((struct PRThread *) pthread_getspecific(current_thread_key))
michael@0: #define _MD_CURRENT_CPU() 				\
michael@0: 			((struct _PRCPU *) pthread_getspecific(current_cpu_key))
michael@0: #define _MD_LAST_THREAD()				\
michael@0: 			((struct PRThread *) pthread_getspecific(last_thread_key))
michael@0: 	
michael@0: #define _MD_SET_CURRENT_THREAD(newval) 			\
michael@0: 	pthread_setspecific(current_thread_key, (void *)newval)
michael@0: 
michael@0: #define _MD_SET_CURRENT_CPU(newval) 			\
michael@0: 	pthread_setspecific(current_cpu_key, (void *)newval)
michael@0: 
michael@0: #define _MD_SET_LAST_THREAD(newval)	 			\
michael@0: 	pthread_setspecific(last_thread_key, (void *)newval)
michael@0: 
michael@0: #define _MD_SET_INTSOFF(_val)
michael@0: #define _MD_GET_INTSOFF()	1
michael@0: 	
michael@0: /*
michael@0: ** Initialize the thread context preparing it to execute _main.
michael@0: */
michael@0: #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)			\
michael@0:     PR_BEGIN_MACRO				      							\
michael@0:         *status = PR_TRUE;              						\
michael@0: 		if (SAVE_CONTEXT(_thread)) {							\
michael@0: 	    	(*_main)();											\
michael@0: 		}														\
michael@0: 		_MD_SET_THR_SP(_thread, _sp);							\
michael@0: 		_thread->no_sched = 0; 									\
michael@0:     PR_END_MACRO
michael@0: 
michael@0: #define _MD_SWITCH_CONTEXT(_thread)  								\
michael@0:     PR_BEGIN_MACRO 													\
michael@0: 	PR_ASSERT(_thread->no_sched);									\
michael@0: 	if (!SAVE_CONTEXT(_thread)) {									\
michael@0: 		(_thread)->md.errcode = errno;  							\
michael@0: 		_MD_SET_LAST_THREAD(_thread);								\
michael@0: 		_PR_Schedule();		     									\
michael@0:     } else {														\
michael@0: 		 (_MD_LAST_THREAD())->no_sched = 0;							\
michael@0: 	}																\
michael@0:     PR_END_MACRO
michael@0: 
michael@0: /*
michael@0: ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
michael@0: */
michael@0: #define _MD_RESTORE_CONTEXT(_thread)								\
michael@0:     PR_BEGIN_MACRO 													\
michael@0:     errno = (_thread)->md.errcode; 									\
michael@0:     _MD_SET_CURRENT_THREAD(_thread); 								\
michael@0: 	_thread->no_sched = 1;											\
michael@0:     GOTO_CONTEXT(_thread); 											\
michael@0:     PR_END_MACRO
michael@0: 
michael@0: 
michael@0: /* Machine-dependent (MD) data structures */
michael@0: 
michael@0: struct _MDThread {
michael@0:     jmp_buf 		jb;
michael@0:     int				id;
michael@0:     int				errcode;
michael@0: 	pthread_t		pthread;
michael@0: 	pthread_mutex_t	pthread_mutex;
michael@0: 	pthread_cond_t	pthread_cond;
michael@0: 	int				wait;
michael@0: };
michael@0: 
michael@0: struct _MDThreadStack {
michael@0:     PRInt8 notused;
michael@0: };
michael@0: 
michael@0: struct _MDLock {
michael@0: 	pthread_mutex_t mutex;
michael@0: };
michael@0: 
michael@0: struct _MDSemaphore {
michael@0:     PRInt8 notused;
michael@0: };
michael@0: 
michael@0: struct _MDCVar {
michael@0: 	pthread_mutex_t mutex;
michael@0: };
michael@0: 
michael@0: struct _MDSegment {
michael@0:     PRInt8 notused;
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * md-specific cpu structure field
michael@0:  */
michael@0: #define _PR_MD_MAX_OSFD FD_SETSIZE
michael@0: 
michael@0: struct _MDCPU_Unix {
michael@0:     PRCList ioQ;
michael@0:     PRUint32 ioq_timeout;
michael@0:     PRInt32 ioq_max_osfd;
michael@0:     PRInt32 ioq_osfd_cnt;
michael@0: #ifndef _PR_USE_POLL
michael@0:     fd_set fd_read_set, fd_write_set, fd_exception_set;
michael@0:     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
michael@0: 				fd_exception_cnt[_PR_MD_MAX_OSFD];
michael@0: #else
michael@0: 	struct pollfd *ioq_pollfds;
michael@0: 	int ioq_pollfds_size;
michael@0: #endif	/* _PR_USE_POLL */
michael@0: };
michael@0: 
michael@0: #define _PR_IOQ(_cpu)			((_cpu)->md.md_unix.ioQ)
michael@0: #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
michael@0: #define _PR_FD_READ_SET(_cpu)		((_cpu)->md.md_unix.fd_read_set)
michael@0: #define _PR_FD_READ_CNT(_cpu)		((_cpu)->md.md_unix.fd_read_cnt)
michael@0: #define _PR_FD_WRITE_SET(_cpu)		((_cpu)->md.md_unix.fd_write_set)
michael@0: #define _PR_FD_WRITE_CNT(_cpu)		((_cpu)->md.md_unix.fd_write_cnt)
michael@0: #define _PR_FD_EXCEPTION_SET(_cpu)	((_cpu)->md.md_unix.fd_exception_set)
michael@0: #define _PR_FD_EXCEPTION_CNT(_cpu)	((_cpu)->md.md_unix.fd_exception_cnt)
michael@0: #define _PR_IOQ_TIMEOUT(_cpu)		((_cpu)->md.md_unix.ioq_timeout)
michael@0: #define _PR_IOQ_MAX_OSFD(_cpu)		((_cpu)->md.md_unix.ioq_max_osfd)
michael@0: #define _PR_IOQ_OSFD_CNT(_cpu)		((_cpu)->md.md_unix.ioq_osfd_cnt)
michael@0: #define _PR_IOQ_POLLFDS(_cpu)		((_cpu)->md.md_unix.ioq_pollfds)
michael@0: #define _PR_IOQ_POLLFDS_SIZE(_cpu)	((_cpu)->md.md_unix.ioq_pollfds_size)
michael@0: 
michael@0: #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)	32
michael@0: 
michael@0: struct _MDCPU {
michael@0:     jmp_buf 			jb;
michael@0: 	pthread_t 			pthread;
michael@0: 	struct _MDCPU_Unix 	md_unix;
michael@0: };
michael@0: 
michael@0: /*
michael@0: #define _MD_NEW_LOCK(lock) PR_SUCCESS
michael@0: #define _MD_FREE_LOCK(lock)
michael@0: #define _MD_LOCK(lock)
michael@0: #define _MD_UNLOCK(lock)
michael@0: */
michael@0: 
michael@0: extern pthread_mutex_t _pr_heapLock;
michael@0: 
michael@0: #define _PR_LOCK(lock) pthread_mutex_lock(lock)
michael@0: 
michael@0: #define _PR_UNLOCK(lock) pthread_mutex_unlock(lock)
michael@0: 
michael@0: 
michael@0: #define _PR_LOCK_HEAP()	{									\
michael@0: 				if (_pr_primordialCPU) {					\
michael@0: 					_PR_LOCK(_pr_heapLock);					\
michael@0: 				}
michael@0: 
michael@0: #define _PR_UNLOCK_HEAP() 	if (_pr_primordialCPU)	{		\
michael@0: 					_PR_UNLOCK(_pr_heapLock);				\
michael@0: 				}											\
michael@0: 			  }
michael@0: 
michael@0: NSPR_API(PRStatus) _MD_NEW_LOCK(struct _MDLock *md);
michael@0: NSPR_API(void) _MD_FREE_LOCK(struct _MDLock *lockp);
michael@0: 
michael@0: #define _MD_LOCK(_lockp) _PR_LOCK(&(_lockp)->mutex)
michael@0: #define _MD_UNLOCK(_lockp) _PR_UNLOCK(&(_lockp)->mutex)
michael@0: 
michael@0: #define _MD_INIT_IO()
michael@0: #define _MD_IOQ_LOCK()
michael@0: #define _MD_IOQ_UNLOCK()
michael@0: #define _MD_CHECK_FOR_EXIT()
michael@0: 
michael@0: NSPR_API(PRStatus) _MD_InitThread(struct PRThread *thread);
michael@0: #define _MD_INIT_THREAD _MD_InitThread
michael@0: #define _MD_INIT_ATTACHED_THREAD _MD_InitThread
michael@0: 
michael@0: NSPR_API(void) _MD_ExitThread(struct PRThread *thread);
michael@0: #define _MD_EXIT_THREAD _MD_ExitThread
michael@0: 
michael@0: NSPR_API(void) _MD_SuspendThread(struct PRThread *thread);
michael@0: #define _MD_SUSPEND_THREAD _MD_SuspendThread
michael@0: 
michael@0: NSPR_API(void) _MD_ResumeThread(struct PRThread *thread);
michael@0: #define _MD_RESUME_THREAD _MD_ResumeThread
michael@0: 
michael@0: NSPR_API(void) _MD_SuspendCPU(struct _PRCPU *thread);
michael@0: #define _MD_SUSPEND_CPU _MD_SuspendCPU
michael@0: 
michael@0: NSPR_API(void) _MD_ResumeCPU(struct _PRCPU *thread);
michael@0: #define _MD_RESUME_CPU _MD_ResumeCPU
michael@0: 
michael@0: #define _MD_BEGIN_SUSPEND_ALL()
michael@0: #define _MD_END_SUSPEND_ALL()
michael@0: #define _MD_BEGIN_RESUME_ALL()
michael@0: #define _MD_END_RESUME_ALL()
michael@0: 
michael@0: NSPR_API(void) _MD_EarlyInit(void);
michael@0: #define _MD_EARLY_INIT _MD_EarlyInit
michael@0: 
michael@0: #define _MD_FINAL_INIT _PR_UnixInit
michael@0: 
michael@0: NSPR_API(void) _MD_InitLocks(void);
michael@0: #define _MD_INIT_LOCKS _MD_InitLocks
michael@0: 
michael@0: NSPR_API(void) _MD_CleanThread(struct PRThread *thread);
michael@0: #define _MD_CLEAN_THREAD _MD_CleanThread
michael@0: 
michael@0: NSPR_API(PRStatus) _MD_CreateThread(
michael@0:                         struct PRThread *thread,
michael@0:                         void (*start) (void *),
michael@0:                         PRThreadPriority priority,
michael@0:                         PRThreadScope scope,
michael@0:                         PRThreadState state,
michael@0:                         PRUint32 stackSize);
michael@0: #define _MD_CREATE_THREAD _MD_CreateThread
michael@0: 
michael@0: extern void _MD_CleanupBeforeExit(void);
michael@0: #define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit
michael@0: 
michael@0: NSPR_API(void) _MD_InitRunningCPU(struct _PRCPU *cpu);
michael@0: #define    _MD_INIT_RUNNING_CPU _MD_InitRunningCPU
michael@0: 
michael@0: /* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and
michael@0:  * awaken a thread which is waiting on a lock or cvar.
michael@0:  */
michael@0: NSPR_API(PRStatus) _MD_wait(struct PRThread *, PRIntervalTime timeout);
michael@0: #define _MD_WAIT _MD_wait
michael@0: 
michael@0: NSPR_API(PRStatus) _MD_WakeupWaiter(struct PRThread *);
michael@0: #define _MD_WAKEUP_WAITER _MD_WakeupWaiter
michael@0: 
michael@0: NSPR_API(void) _MD_SetPriority(struct _MDThread *thread,
michael@0: 	PRThreadPriority newPri);
michael@0: #define _MD_SET_PRIORITY _MD_SetPriority
michael@0: 
michael@0: #endif /* PTHREADS_USER */
michael@0: 
michael@0: #endif /* nspr_pthread_defs_h___ */