Version 1.8 of gecko-sdk. Downloaded from here:...

gecko-sdk/include/md/_irix.h

+/* -*- 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___ */