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pjs/nsprpub/pr/include/md/_openvms.h

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8.3 KiB
C
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* 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 Netscape are
* Copyright (C) 1998-2000 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the
* GPL.
*/
/*
** This is the OpenVMS machine dependant configuration file. It is based
** on the OSF/1 machine dependant file.
*/
#ifndef nspr_openvms_defs_h___
#define nspr_openvms_defs_h___
/*
* Internal configuration macros
*/
#define PR_LINKER_ARCH "OpenVMS"
#define _PR_SI_SYSNAME "OpenVMS"
#ifdef __alpha
#define _PR_SI_ARCHITECTURE "alpha"
#else
#define _PR_SI_ARCHITECTURE "vax"
#endif
#define PR_DLL_SUFFIX ".so"
#define _PR_VMBASE 0x30000000
#define _PR_STACK_VMBASE 0x50000000
#define _MD_DEFAULT_STACK_SIZE 131072L
#define _MD_MINIMUM_STACK_SIZE 131072L
/*
** This is not defined on OpenVMS. I believe its only used in GC code, and
** isn't that only used in Java? Anyway, for now, let's keep the compiler
** happy.
*/
#define SA_RESTART 0
/*
** OpenVMS doesn't have these in socket.h.
** Does in later versions!
*/
#if 0
struct ip_mreq {
struct in_addr imr_multiaddr; /* IP multicast address of group */
struct in_addr imr_interface; /* local IP address of interface */
};
#endif
/*
* OSF1 needs the MAP_FIXED flag to ensure that mmap returns a pointer
* with the upper 32 bits zero. This is because Java sticks a pointer
* into an int.
*/
#define _MD_MMAP_FLAGS MAP_PRIVATE|MAP_FIXED
#undef HAVE_STACK_GROWING_UP
#undef HAVE_WEAK_IO_SYMBOLS
#undef HAVE_WEAK_MALLOC_SYMBOLS
#undef HAVE_BSD_FLOCK
#define NEED_TIME_R
#define HAVE_DLL
#define USE_DLFCN
#define _PR_POLL_AVAILABLE
#define _PR_USE_POLL
#define _PR_STAT_HAS_ONLY_ST_ATIME
#define _PR_NO_LARGE_FILES
/* IPv6 support */
#define _PR_HAVE_GETIPNODEBYNAME
#define _PR_HAVE_GETIPNODEBYADDR
#define _PR_INET6_PROBE
#ifndef _PR_INET6
#define AF_INET6 26
#define AI_V4MAPPED 0x00000010
#define AI_ALL 0x00000008
#define AI_ADDRCONFIG 0x00000020
#endif
#undef USE_SETJMP
#include <setjmp.h>
/*
* A jmp_buf is actually a struct sigcontext. The sc_sp field of
* struct sigcontext is the stack pointer.
*/
#define _MD_GET_SP(_t) (((struct sigcontext *) (_t)->md.context)->sc_sp)
#define PR_NUM_GCREGS _JBLEN
#define CONTEXT(_th) ((_th)->md.context)
/*
** I am ifdef'ing these out because that's the way they are in FT.
*/
#ifndef __VMS
/*
** Initialize a thread context to run "_main()" when started
*/
#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
{ \
*status = PR_TRUE; \
if (setjmp(CONTEXT(_thread))) { \
(*_main)(); \
} \
_MD_GET_SP(_thread) = (long) ((_sp) - 64); \
_MD_GET_SP(_thread) &= ~15; \
}
#define _MD_SWITCH_CONTEXT(_thread) \
if (!setjmp(CONTEXT(_thread))) { \
(_thread)->md.errcode = errno; \
_PR_Schedule(); \
}
/*
** Restore a thread context, saved by _MD_SWITCH_CONTEXT
*/
#define _MD_RESTORE_CONTEXT(_thread) \
{ \
errno = (_thread)->md.errcode; \
_MD_SET_CURRENT_THREAD(_thread); \
longjmp(CONTEXT(_thread), 1); \
}
#endif /* __VMS */
/* Machine-dependent (MD) data structures */
struct _MDThread {
jmp_buf context;
int id;
int errcode;
};
struct _MDThreadStack {
PRInt8 notused;
};
struct _MDLock {
PRInt8 notused;
};
struct _MDSemaphore {
PRInt8 notused;
};
struct _MDCVar {
PRInt8 notused;
};
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 {
struct _MDCPU_Unix md_unix;
};
#ifndef _PR_PTHREADS
#define _MD_INIT_LOCKS()
#endif
#define _MD_NEW_LOCK(lock) PR_SUCCESS
#define _MD_FREE_LOCK(lock)
#define _MD_LOCK(lock)
#define _MD_UNLOCK(lock)
#define _MD_INIT_IO()
#define _MD_IOQ_LOCK()
#define _MD_IOQ_UNLOCK()
/*
* The following are copied from _sunos.h, _aix.h. This means
* some of them should probably be moved into _unixos.h. But
* _irix.h seems to be quite different in regard to these macros.
*/
#define _MD_GET_INTERVAL _PR_UNIX_GetInterval
extern PRIntervalTime _PR_UNIX_GetInterval(void);
#define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond
extern PRIntervalTime _PR_UNIX_TicksPerSecond(void);
#define _MD_EARLY_INIT _MD_EarlyInit
void _MD_EarlyInit(void);
#define _MD_FINAL_INIT _PR_UnixInit
#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
#define _MD_INIT_THREAD _MD_InitializeThread
#ifdef _VMS_NOT_YET
NSPR_API(void) _PR_InitThreads(
PRThreadType type, PRThreadPriority priority, PRUintn maxPTDs);
#endif
#define _MD_EXIT_THREAD(thread)
#define _MD_SUSPEND_THREAD(thread)
#define _MD_RESUME_THREAD(thread)
#define _MD_CLEAN_THREAD(_thread)
/* The following defines unwrapped versions of select() and poll(). */
extern int __select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
#define _MD_SELECT __select
#ifndef __VMS
#define _MD_POLL __poll
extern int __poll(struct pollfd filedes[], unsigned int nfds, int timeout);
#endif
#ifdef __VMS
NSPR_API(void) _PR_InitCPUs(void);
NSPR_API(void) _PR_MD_START_INTERRUPTS(void);
#endif
/*
* Atomic operations
*/
#include <machine/builtins.h>
#define _PR_HAVE_ATOMIC_OPS
#define _MD_INIT_ATOMIC()
#define _MD_ATOMIC_ADD(ptr,val) (__ATOMIC_ADD_LONG(ptr,val) + val)
#define _MD_ATOMIC_INCREMENT(val) (__ATOMIC_INCREMENT_LONG(val) + 1)
#define _MD_ATOMIC_DECREMENT(val) (__ATOMIC_DECREMENT_LONG(val) - 1)
#define _MD_ATOMIC_SET(val, newval) __ATOMIC_EXCH_LONG(val, newval)
extern int thread_suspend(PRThread *thr_id);
extern int thread_resume(PRThread *thr_id);
#endif /* nspr_openvms_defs_h___ */
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