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_scoos.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is the Netscape Portable Runtime (NSPR).
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998-2000
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nspr_scoos5_defs_h___
00039 #define nspr_scoos5_defs_h___
00040 
00041 /*
00042  * Internal configuration macros
00043  */
00044 
00045 #define PR_LINKER_ARCH      "scoos5"
00046 #define PR_DLL_SUFFIX              ".so"
00047 
00048 #define _PR_SI_SYSNAME      "SCO"
00049 #define _PR_SI_ARCHITECTURE "x86"
00050 #define _PR_STACK_VMBASE    0x50000000
00051 
00052 #define _MD_DEFAULT_STACK_SIZE     65536L
00053 #define _MD_MMAP_FLAGS          MAP_PRIVATE
00054 
00055 #undef  HAVE_STACK_GROWING_UP
00056 #define       HAVE_DLL
00057 #define       USE_DLFCN
00058 
00059 #if !defined (HAVE_STRERROR)
00060 #define HAVE_STRERROR
00061 #endif
00062 
00063 #ifndef       HAVE_WEAK_IO_SYMBOLS
00064 #define       HAVE_WEAK_IO_SYMBOLS
00065 #endif
00066 
00067 #define _PR_POLL_AVAILABLE
00068 #define _PR_USE_POLL
00069 #define _PR_NO_LARGE_FILES
00070 #define _PR_STAT_HAS_ONLY_ST_ATIME
00071 
00072 #define NEED_STRFTIME_LOCK
00073 #define NEED_TIME_R
00074 #define _PR_RECV_BROKEN /* recv doesn't work on Unix Domain Sockets */
00075 
00076 #define USE_SETJMP
00077 
00078 #ifdef _PR_LOCAL_THREADS_ONLY
00079 #include <setjmp.h>
00080 
00081 #define _MD_GET_SP(_t)  (_t)->md.jb[4]
00082 #define PR_NUM_GCREGS       _SIGJBLEN
00083 #define PR_CONTEXT_TYPE     sigjmp_buf
00084 
00085 #define CONTEXT(_th) ((_th)->md.jb)
00086 
00087 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)                        \
00088 {                                                                                                                      \
00089        *status = PR_TRUE;                                                                                \
00090     if (sigsetjmp(CONTEXT(_thread),1)) {                                            \
00091               (*_main)();                                                                                \
00092     }                                                                                                           \
00093     _MD_GET_SP(_thread) = (int) ((_sp) - 64);    \
00094 }
00095 
00096 #define _MD_SWITCH_CONTEXT(_thread)                                                        \
00097     if (!sigsetjmp(CONTEXT(_thread), 1)) {                                                 \
00098               (_thread)->md.errcode = errno;                                               \
00099               _PR_Schedule();                                                                            \
00100     }
00101 
00102 /*
00103 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
00104 */
00105 #define _MD_RESTORE_CONTEXT(_thread)                                                       \
00106 {                                                                                                               \
00107     errno = (_thread)->osErrorCode;                                                        \
00108        _MD_SET_CURRENT_THREAD(_thread);                                                    \
00109     siglongjmp(CONTEXT(_thread), 1);                                                \
00110 }
00111 
00112 #endif /* _PR_LOCAL_THREADS_ONLY */
00113 
00114 struct _MDThread {
00115     jmp_buf jb;
00116     int id;
00117     int errcode;
00118 };
00119 
00120 struct _MDThreadStack {
00121     PRInt8 notused;
00122 };
00123 
00124 struct _MDLock {
00125     PRInt8 notused;
00126 };
00127 
00128 struct _MDSemaphore {
00129     PRInt8 notused;
00130 };
00131 
00132 struct _MDCVar {
00133     PRInt8 notused;
00134 };
00135 
00136 struct _MDSegment {
00137     PRInt8 notused;
00138 };
00139 
00140 /*
00141  * md-specific cpu structure field
00142  */
00143 #define _PR_MD_MAX_OSFD FD_SETSIZE
00144 
00145 struct _MDCPU_Unix {
00146     PRCList ioQ;
00147     PRUint32 ioq_timeout;
00148     PRInt32 ioq_max_osfd;
00149     PRInt32 ioq_osfd_cnt;
00150 #ifndef _PR_USE_POLL
00151     fd_set fd_read_set, fd_write_set, fd_exception_set;
00152     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
00153                             fd_exception_cnt[_PR_MD_MAX_OSFD];
00154 #else
00155        struct pollfd *ioq_pollfds;
00156        int ioq_pollfds_size;
00157 #endif /* _PR_USE_POLL */
00158 };
00159 
00160 #define _PR_IOQ(_cpu)                     ((_cpu)->md.md_unix.ioQ)
00161 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
00162 #define _PR_FD_READ_SET(_cpu)             ((_cpu)->md.md_unix.fd_read_set)
00163 #define _PR_FD_READ_CNT(_cpu)             ((_cpu)->md.md_unix.fd_read_cnt)
00164 #define _PR_FD_WRITE_SET(_cpu)            ((_cpu)->md.md_unix.fd_write_set)
00165 #define _PR_FD_WRITE_CNT(_cpu)            ((_cpu)->md.md_unix.fd_write_cnt)
00166 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
00167 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
00168 #define _PR_IOQ_TIMEOUT(_cpu)             ((_cpu)->md.md_unix.ioq_timeout)
00169 #define _PR_IOQ_MAX_OSFD(_cpu)            ((_cpu)->md.md_unix.ioq_max_osfd)
00170 #define _PR_IOQ_OSFD_CNT(_cpu)            ((_cpu)->md.md_unix.ioq_osfd_cnt)
00171 #define _PR_IOQ_POLLFDS(_cpu)             ((_cpu)->md.md_unix.ioq_pollfds)
00172 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
00173 
00174 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)    32
00175 
00176 struct _MDCPU {
00177     struct _MDCPU_Unix md_unix;
00178 };
00179 
00180 #define _MD_INIT_LOCKS()
00181 #define _MD_NEW_LOCK(lock) PR_SUCCESS
00182 #define _MD_FREE_LOCK(lock)
00183 #define _MD_LOCK(lock)
00184 #define _MD_UNLOCK(lock)
00185 #define _MD_INIT_IO()
00186 #define _MD_IOQ_LOCK()
00187 #define _MD_IOQ_UNLOCK()
00188 
00189 #define _MD_EARLY_INIT             _MD_EarlyInit
00190 #define _MD_FINAL_INIT                           _PR_UnixInit
00191 #define _MD_INIT_RUNNING_CPU(cpu)  _MD_unix_init_running_cpu(cpu)
00192 #define _MD_INIT_THREAD            _MD_InitializeThread
00193 #define _MD_EXIT_THREAD(thread)
00194 #define       _MD_SUSPEND_THREAD(thread)
00195 #define       _MD_RESUME_THREAD(thread)
00196 #define _MD_CLEAN_THREAD(_thread)
00197 
00198 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
00199 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
00200 
00201 #define _MD_SELECT          _select
00202 #define _MD_POLL            _poll
00203 
00204 #endif /* nspr_scoos5_defs_h___ */