_irix.h
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- /* -*- 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_irix_defs_h___
- #define nspr_irix_defs_h___
- #define _PR_HAVE_ATOMIC_CAS
- /*
- * MipsPro assembler defines _LANGUAGE_ASSEMBLY
- */
- #ifndef _LANGUAGE_ASSEMBLY
- #include "prclist.h"
- #include "prthread.h"
- #include <sys/ucontext.h>
- /*
- * Internal configuration macros
- */
- #define PR_LINKER_ARCH "irix"
- #define _PR_SI_SYSNAME "IRIX"
- #define _PR_SI_ARCHITECTURE "mips"
- #define PR_DLL_SUFFIX ".so"
- #define _PR_VMBASE 0x30000000
- #define _PR_STACK_VMBASE 0x50000000
- #define _PR_NUM_GCREGS 9
- #define _MD_MMAP_FLAGS MAP_PRIVATE
- #define _MD_DEFAULT_STACK_SIZE 65536L
- #define _MD_MIN_STACK_SIZE 16384L
- #undef HAVE_STACK_GROWING_UP
- #define HAVE_WEAK_IO_SYMBOLS
- #define HAVE_WEAK_MALLOC_SYMBOLS
- #define HAVE_DLL
- #define USE_DLFCN
- #define _PR_HAVE_ATOMIC_OPS
- #define _PR_POLL_AVAILABLE
- #define _PR_USE_POLL
- #define _PR_STAT_HAS_ST_ATIM
- #define _PR_HAVE_OFF64_T
- #define HAVE_POINTER_LOCALTIME_R
- #define _PR_HAVE_POSIX_SEMAPHORES
- #define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
- #define _PR_ACCEPT_INHERIT_NONBLOCK
- #ifdef _PR_INET6
- #define _PR_HAVE_INET_NTOP
- #define _PR_HAVE_GETIPNODEBYNAME
- #define _PR_HAVE_GETIPNODEBYADDR
- #define _PR_HAVE_GETADDRINFO
- #endif
- /* Initialization entry points */
- NSPR_API(void) _MD_EarlyInit(void);
- #define _MD_EARLY_INIT _MD_EarlyInit
- NSPR_API(void) _MD_IrixInit(void);
- #define _MD_FINAL_INIT _MD_IrixInit
- #define _MD_INIT_IO()
- /* Timer operations */
- NSPR_API(PRIntervalTime) _MD_IrixGetInterval(void);
- #define _MD_GET_INTERVAL _MD_IrixGetInterval
- NSPR_API(PRIntervalTime) _MD_IrixIntervalPerSec(void);
- #define _MD_INTERVAL_PER_SEC _MD_IrixIntervalPerSec
- /* GC operations */
- NSPR_API(void *) _MD_GetSP(PRThread *thread);
- #define _MD_GET_SP _MD_GetSP
- /* The atomic operations */
- #include <mutex.h>
- #define _MD_INIT_ATOMIC()
- #define _MD_ATOMIC_INCREMENT(val) add_then_test((unsigned long*)val, 1)
- #define _MD_ATOMIC_ADD(ptr, val) add_then_test((unsigned long*)ptr, (unsigned long)val)
- #define _MD_ATOMIC_DECREMENT(val) add_then_test((unsigned long*)val, 0xffffffff)
- #define _MD_ATOMIC_SET(val, newval) test_and_set((unsigned long*)val, newval)
- #if defined(_PR_PTHREADS)
- #else /* defined(_PR_PTHREADS) */
- /************************************************************************/
- #include <setjmp.h>
- #include <errno.h>
- #include <unistd.h>
- #include <bstring.h>
- #include <sys/time.h>
- #include <ulocks.h>
- #include <sys/prctl.h>
- /*
- * Data region private to each sproc. This region is setup by calling
- * mmap(...,MAP_LOCAL,...). The private data is mapped at the same
- * address in every sproc, but every sproc gets a private mapping.
- *
- * Just make sure that this structure fits in a page, as only one page
- * is allocated for the private region.
- */
- struct sproc_private_data {
- struct PRThread *me;
- struct _PRCPU *cpu;
- struct PRThread *last;
- PRUintn intsOff;
- int sproc_pid;
- };
- extern char *_nspr_sproc_private;
- #define _PR_PRDA() ((struct sproc_private_data *) _nspr_sproc_private)
- #define _MD_SET_CURRENT_THREAD(_thread) _PR_PRDA()->me = (_thread)
- #define _MD_THIS_THREAD() (_PR_PRDA()->me)
- #define _MD_LAST_THREAD() (_PR_PRDA()->last)
- #define _MD_SET_LAST_THREAD(_thread) _PR_PRDA()->last = (_thread)
- #define _MD_CURRENT_CPU() (_PR_PRDA()->cpu)
- #define _MD_SET_CURRENT_CPU(_cpu) _PR_PRDA()->cpu = (_cpu)
- #define _MD_SET_INTSOFF(_val) (_PR_PRDA()->intsOff = _val)
- #define _MD_GET_INTSOFF() (_PR_PRDA()->intsOff)
- #define _MD_SET_SPROC_PID(_val) (_PR_PRDA()->sproc_pid = _val)
- #define _MD_GET_SPROC_PID() (_PR_PRDA()->sproc_pid)
- NSPR_API(struct PRThread*) _MD_get_attached_thread(void);
- NSPR_API(struct PRThread*) _MD_get_current_thread(void);
- #define _MD_GET_ATTACHED_THREAD() _MD_get_attached_thread()
- #define _MD_CURRENT_THREAD() _MD_get_current_thread()
- #define _MD_CHECK_FOR_EXIT() {
- if (_pr_irix_exit_now) {
- _PR_POST_SEM(_pr_irix_exit_sem);
- _MD_Wakeup_CPUs();
- _exit(0);
- }
- }
-
- #define _MD_ATTACH_THREAD(threadp)
- #define _MD_SAVE_ERRNO(_thread) (_thread)->md.errcode = errno;
- #define _MD_RESTORE_ERRNO(_thread) errno = (_thread)->md.errcode;
- extern struct _PRCPU *_pr_primordialCPU;
- extern usema_t *_pr_irix_exit_sem;
- extern PRInt32 _pr_irix_exit_now;
- extern int _pr_irix_primoridal_cpu_fd[];
- extern PRInt32 _pr_irix_process_exit;
- extern PRInt32 _pr_irix_process_exit_code;
- /* Thread operations */
- #define _PR_LOCK_HEAP() {
- PRIntn _is;
- if (_pr_primordialCPU) {
- if (_MD_GET_ATTACHED_THREAD() &&
- !_PR_IS_NATIVE_THREAD(
- _MD_GET_ATTACHED_THREAD()))
- _PR_INTSOFF(_is);
- _PR_LOCK(_pr_heapLock);
- }
- #define _PR_UNLOCK_HEAP() if (_pr_primordialCPU) {
- _PR_UNLOCK(_pr_heapLock);
- if (_MD_GET_ATTACHED_THREAD() &&
- !_PR_IS_NATIVE_THREAD(
- _MD_GET_ATTACHED_THREAD()))
- _PR_INTSON(_is);
- }
- }
- #define _PR_OPEN_POLL_SEM(_sem) usopenpollsema(_sem, 0666)
- #define _PR_WAIT_SEM(_sem) uspsema(_sem)
- #define _PR_POST_SEM(_sem) usvsema(_sem)
- #define _MD_CVAR_POST_SEM(threadp) usvsema((threadp)->md.cvar_pollsem)
- #define _MD_IOQ_LOCK()
- #define _MD_IOQ_UNLOCK()
- struct _MDLock {
- ulock_t lock;
- usptr_t *arena;
- };
- /*
- * disable pre-emption for the LOCAL threads when calling the arena lock
- * routines
- */
- #define _PR_LOCK(lock) {
- PRIntn _is;
- PRThread *me = _MD_GET_ATTACHED_THREAD();
- if (me && !_PR_IS_NATIVE_THREAD(me))
- _PR_INTSOFF(_is);
- ussetlock(lock);
- if (me && !_PR_IS_NATIVE_THREAD(me))
- _PR_FAST_INTSON(_is);
- }
- #define _PR_UNLOCK(lock) {
- PRIntn _is;
- PRThread *me = _MD_GET_ATTACHED_THREAD();
- if (me && !_PR_IS_NATIVE_THREAD(me))
- _PR_INTSOFF(_is);
- usunsetlock(lock);
- if (me && !_PR_IS_NATIVE_THREAD(me))
- _PR_FAST_INTSON(_is);
- }
- 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)->lock)
- #define _MD_UNLOCK(_lockp) _PR_UNLOCK((_lockp)->lock)
- #define _MD_TEST_AND_LOCK(_lockp) (uscsetlock((_lockp)->lock, 1) == 0)
- extern ulock_t _pr_heapLock;
- struct _MDThread {
- jmp_buf jb;
- usptr_t *pollsem_arena;
- usema_t *cvar_pollsem;
- PRInt32 cvar_pollsemfd;
- PRInt32 cvar_pollsem_select; /* acquire sem by calling select */
- PRInt32 cvar_wait; /* if 1, thread is waiting on cvar Q */
- PRInt32 id;
- PRInt32 suspending_id;
- int errcode;
- };
- struct _MDThreadStack {
- PRInt8 notused;
- };
- struct _MDSemaphore {
- usema_t *sem;
- };
- struct _MDCVar {
- ulock_t mdcvar_lock;
- };
- 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 {
- PRInt32 id;
- PRInt32 suspending_id;
- struct _MDCPU_Unix md_unix;
- };
- /*
- ** Initialize the thread context preparing it to execute _main.
- */
- #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)
- PR_BEGIN_MACRO
- int *jb = (_thread)->md.jb;
- *status = PR_TRUE;
- (void) setjmp(jb);
- (_thread)->md.jb[JB_SP] = (int) ((_sp) - 64);
- (_thread)->md.jb[JB_PC] = (int) _main;
- _thread->no_sched = 0;
- PR_END_MACRO
- /*
- ** Switch away from the current thread context by saving its state and
- ** calling the thread scheduler. Reload cpu when we come back from the
- ** context switch because it might have changed.
- *
- * XXX RUNQ lock needed before clearing _PR_NO_SCHED flag, because the
- * thread may be unr RUNQ?
- */
- #define _MD_SWITCH_CONTEXT(_thread)
- PR_BEGIN_MACRO
- PR_ASSERT(_thread->no_sched);
- if (!setjmp(_thread->md.jb)) {
- _MD_SAVE_ERRNO(_thread)
- _MD_SET_LAST_THREAD(_thread);
- _PR_Schedule();
- } else {
- PR_ASSERT(_MD_LAST_THREAD() !=_MD_CURRENT_THREAD());
- _MD_LAST_THREAD()->no_sched = 0;
- }
- PR_END_MACRO
- /*
- ** Restore a thread context that was saved by _MD_SWITCH_CONTEXT or
- ** initialized by _MD_INIT_CONTEXT.
- */
- #define _MD_RESTORE_CONTEXT(_newThread)
- PR_BEGIN_MACRO
- int *jb = (_newThread)->md.jb;
- _MD_RESTORE_ERRNO(_newThread)
- _MD_SET_CURRENT_THREAD(_newThread);
- _newThread->no_sched = 1;
- longjmp(jb, 1);
- PR_END_MACRO
- NSPR_API(PRStatus) _MD_InitThread(struct PRThread *thread,
- PRBool wakeup_parent);
- NSPR_API(PRStatus) _MD_InitAttachedThread(struct PRThread *thread,
- PRBool wakeup_parent);
- #define _MD_INIT_THREAD(thread) _MD_InitThread(thread, PR_TRUE)
- #define _MD_INIT_ATTACHED_THREAD(thread)
- _MD_InitAttachedThread(thread, PR_FALSE)
- 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_InitLocks(void);
- #define _MD_INIT_LOCKS _MD_InitLocks
- NSPR_API(void) _MD_CleanThread(struct PRThread *thread);
- #define _MD_CLEAN_THREAD _MD_CleanThread
- #define _MD_YIELD() sginap(0)
- /* 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(void) _PR_MD_primordial_cpu();
- NSPR_API(void) _PR_MD_WAKEUP_PRIMORDIAL_CPU();
- NSPR_API(PRStatus) _MD_WakeupWaiter(struct PRThread *);
- #define _MD_WAKEUP_WAITER _MD_WakeupWaiter
- NSPR_API(void ) _MD_exit(PRIntn status);
- #define _MD_EXIT _MD_exit
- #include "prthread.h"
- NSPR_API(void) _MD_SetPriority(struct _MDThread *thread,
- PRThreadPriority newPri);
- #define _MD_SET_PRIORITY _MD_SetPriority
- 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) _PR_MD_PRE_CLEANUP(PRThread *me);
- /* The following defines the unwrapped versions of select() and poll(). */
- extern int _select(int nfds, fd_set *readfds, fd_set *writefds,
- fd_set *exceptfds, struct timeval *timeout);
- #define _MD_SELECT _select
- #include <stropts.h>
- #include <poll.h>
- #define _MD_POLL _poll
- extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
- #define HAVE_THREAD_AFFINITY 1
- NSPR_API(PRInt32) _MD_GetThreadAffinityMask(PRThread *unused, PRUint32 *mask);
- #define _MD_GETTHREADAFFINITYMASK _MD_GetThreadAffinityMask
- NSPR_API(void) _MD_InitRunningCPU(struct _PRCPU *cpu);
- #define _MD_INIT_RUNNING_CPU _MD_InitRunningCPU
- #endif /* defined(_PR_PTHREADS) */
- #endif /* _LANGUAGE_ASSEMBLY */
- #endif /* nspr_irix_defs_h___ */