зеркало из https://github.com/mozilla/pjs.git
235 строки
6.6 KiB
C
235 строки
6.6 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape Portable Runtime (NSPR).
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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#ifndef nspr_openbsd_defs_h___
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#define nspr_openbsd_defs_h___
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#include <sys/syscall.h>
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#define PR_LINKER_ARCH "openbsd"
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#define _PR_SI_SYSNAME "OPENBSD"
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#if defined(__i386__)
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#define _PR_SI_ARCHITECTURE "x86"
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#elif defined(__alpha__)
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#define _PR_SI_ARCHITECTURE "alpha"
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#elif defined(__m68k__)
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#define _PR_SI_ARCHITECTURE "m68k"
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#elif defined(__powerpc__)
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#define _PR_SI_ARCHITECTURE "powerpc"
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#elif defined(__sparc__)
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#define _PR_SI_ARCHITECTURE "sparc"
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#elif defined(__arm32__)
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#define _PR_SI_ARCHITECTURE "arm32"
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#endif
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#define PR_DLL_SUFFIX ".so.1.0"
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#define _PR_VMBASE 0x30000000
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#define _PR_STACK_VMBASE 0x50000000
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#define _MD_DEFAULT_STACK_SIZE 65536L
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#define _MD_MMAP_FLAGS MAP_PRIVATE
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#undef HAVE_STACK_GROWING_UP
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#define HAVE_DLL
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#define USE_DLFCN
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#define _PR_HAVE_SOCKADDR_LEN
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#define _PR_NO_LARGE_FILES
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#define _PR_STAT_HAS_ST_ATIMESPEC
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#define _PR_POLL_AVAILABLE
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#define _PR_USE_POLL
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#define _PR_HAVE_SYSV_SEMAPHORES
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#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
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#define USE_SETJMP
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#ifndef _PR_PTHREADS
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#include <setjmp.h>
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#define PR_CONTEXT_TYPE sigjmp_buf
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#define CONTEXT(_th) ((_th)->md.context)
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#if defined(__i386__) || defined(__sparc__) || defined(__m68k__) || defined(__powerpc__)
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#define JB_SP_INDEX 2
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#elif defined(__alpha__)
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#define JB_SP_INDEX 34
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#elif defined(__arm32__)
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/*
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* On the arm32, the jmpbuf regs underwent a name change after OpenBSD 1.3.
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*/
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#ifdef JMPBUF_REG_R13
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#define JB_SP_INDEX JMPBUF_REG_R13
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#else
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#define JB_SP_INDEX _JB_REG_R13
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#endif
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#else
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#error "Need to define SP index in jmp_buf here"
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#endif
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#define _MD_GET_SP(_th) (_th)->md.context[JB_SP_INDEX]
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#define PR_NUM_GCREGS _JBLEN
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/*
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** Initialize a thread context to run "_main()" when started
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*/
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#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
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{ \
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*status = PR_TRUE; \
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if (sigsetjmp(CONTEXT(_thread), 1)) { \
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_main(); \
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} \
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_MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
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}
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#define _MD_SWITCH_CONTEXT(_thread) \
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if (!sigsetjmp(CONTEXT(_thread), 1)) { \
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(_thread)->md.errcode = errno; \
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_PR_Schedule(); \
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}
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/*
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** Restore a thread context, saved by _MD_SWITCH_CONTEXT
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*/
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#define _MD_RESTORE_CONTEXT(_thread) \
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{ \
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errno = (_thread)->md.errcode; \
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_MD_SET_CURRENT_THREAD(_thread); \
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siglongjmp(CONTEXT(_thread), 1); \
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}
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/* Machine-dependent (MD) data structures */
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struct _MDThread {
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PR_CONTEXT_TYPE context;
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int id;
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int errcode;
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};
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struct _MDThreadStack {
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PRInt8 notused;
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};
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struct _MDLock {
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PRInt8 notused;
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};
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struct _MDSemaphore {
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PRInt8 notused;
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};
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struct _MDCVar {
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PRInt8 notused;
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};
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struct _MDSegment {
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PRInt8 notused;
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};
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/*
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* md-specific cpu structure field
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*/
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#define _PR_MD_MAX_OSFD FD_SETSIZE
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struct _MDCPU_Unix {
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PRCList ioQ;
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PRUint32 ioq_timeout;
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PRInt32 ioq_max_osfd;
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PRInt32 ioq_osfd_cnt;
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#ifndef _PR_USE_POLL
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fd_set fd_read_set, fd_write_set, fd_exception_set;
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PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
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fd_exception_cnt[_PR_MD_MAX_OSFD];
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#else
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struct pollfd *ioq_pollfds;
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int ioq_pollfds_size;
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#endif /* _PR_USE_POLL */
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};
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#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
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#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
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#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
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#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
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#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
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#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
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#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
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#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
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#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
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#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
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#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
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#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
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#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
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#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
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struct _MDCPU {
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struct _MDCPU_Unix md_unix;
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};
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#define _MD_INIT_LOCKS()
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#define _MD_NEW_LOCK(lock) PR_SUCCESS
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#define _MD_FREE_LOCK(lock)
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#define _MD_LOCK(lock)
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#define _MD_UNLOCK(lock)
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#define _MD_INIT_IO()
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#define _MD_IOQ_LOCK()
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#define _MD_IOQ_UNLOCK()
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#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
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#define _MD_INIT_THREAD _MD_InitializeThread
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#define _MD_EXIT_THREAD(thread)
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#define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread
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#define _MD_RESUME_THREAD(thread) _MD_resume_thread
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#define _MD_CLEAN_THREAD(_thread)
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#endif /* ! _PR_PTHREADS */
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#define _MD_EARLY_INIT _MD_EarlyInit
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#define _MD_FINAL_INIT _PR_UnixInit
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#define _MD_GET_INTERVAL _PR_UNIX_GetInterval
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#define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond
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/*
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* We wrapped the select() call. _MD_SELECT refers to the built-in,
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* unwrapped version.
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*/
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#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
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#include <poll.h>
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#define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
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#if OpenBSD1_3 == 1L
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typedef unsigned int nfds_t;
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#endif
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#endif /* nspr_openbsd_defs_h___ */
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