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_ncr.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_unixware_defs_h___
00039 #define nspr_unixware_defs_h___
00040 
00041 /*
00042  * Internal configuration macros
00043  */
00044 
00045 #define PR_LINKER_ARCH      "ncr"
00046 #define _PR_SI_SYSNAME             "NCR"
00047 #define _PR_SI_ARCHITECTURE "x86"
00048 #define PR_DLL_SUFFIX              ".so"
00049 
00050 #define _PR_VMBASE          0x30000000
00051 #define _PR_STACK_VMBASE    0x50000000
00052 #define _MD_DEFAULT_STACK_SIZE     65536L
00053 #define _MD_MMAP_FLAGS          MAP_PRIVATE
00054 
00055 #define       HAVE_DLL
00056 #define       USE_DLFCN
00057 #define _PR_RECV_BROKEN /* recv doesn't work on Unix Domain Sockets */
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 
00071 #undef  HAVE_STACK_GROWING_UP
00072 #define HAVE_NETCONFIG
00073 #define NEED_STRFTIME_LOCK
00074 #define NEED_TIME_R
00075 #define NEED_LOCALTIME_R
00076 #define NEED_GMTIME_R  
00077 #define NEED_ASCTIME_R
00078 #define NEED_STRTOK_R
00079 #define NEED_CTIME_R
00080 #define _PR_NEED_STRCASECMP
00081 
00082 #define USE_SETJMP
00083 
00084 #include <setjmp.h>
00085 
00086 #define _SETJMP setjmp
00087 #define _LONGJMP longjmp
00088 #define _PR_CONTEXT_TYPE         jmp_buf
00089 #define _MD_GET_SP(_t)           (_t)->md.context[4]
00090 #define _PR_NUM_GCREGS      _JBLEN
00091 
00092 #define CONTEXT(_th) ((_th)->md.context)
00093 
00094 /*
00095 ** Initialize the thread context preparing it to execute _main.
00096 */
00097 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
00098 {                                                         \
00099     *status = PR_TRUE; \
00100     if(_SETJMP(CONTEXT(_thread))) (*_main)(); \
00101     _MD_GET_SP(_thread) = (int) ((_sp) - 128); \
00102 }
00103 
00104 #define _MD_SWITCH_CONTEXT(_thread)  \
00105     if (!_SETJMP(CONTEXT(_thread))) { \
00106        (_thread)->md.errcode = errno;  \
00107        _PR_Schedule();                  \
00108     }
00109 
00110 /*
00111 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
00112 */
00113 #define _MD_RESTORE_CONTEXT(_thread) \
00114 {                                \
00115     errno = (_thread)->md.errcode;      \
00116     _MD_SET_CURRENT_THREAD(_thread); \
00117     _LONGJMP(CONTEXT(_thread), 1);    \
00118 }
00119 
00120 /* Machine-dependent (MD) data structures.
00121  * Don't use SVR4 native threads (yet). 
00122  */
00123 
00124 struct _MDThread {
00125     _PR_CONTEXT_TYPE context;
00126     int id;
00127     int errcode;
00128 };
00129 
00130 struct _MDThreadStack {
00131     PRInt8 notused;
00132 };
00133 
00134 struct _MDLock {
00135     PRInt8 notused;
00136 };
00137 
00138 struct _MDSemaphore {
00139     PRInt8 notused;
00140 };
00141 
00142 struct _MDCVar {
00143     PRInt8 notused;
00144 };
00145 
00146 struct _MDSegment {
00147     PRInt8 notused;
00148 };
00149 
00150 /*
00151  * md-specific cpu structure field
00152  */
00153 #define _PR_MD_MAX_OSFD FD_SETSIZE
00154 
00155 struct _MDCPU_Unix {
00156     PRCList ioQ;
00157     PRUint32 ioq_timeout;
00158     PRInt32 ioq_max_osfd;
00159     PRInt32 ioq_osfd_cnt;
00160 #ifndef _PR_USE_POLL
00161     fd_set fd_read_set, fd_write_set, fd_exception_set;
00162     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
00163                             fd_exception_cnt[_PR_MD_MAX_OSFD];
00164 #else
00165        struct pollfd *ioq_pollfds;
00166        int ioq_pollfds_size;
00167 #endif /* _PR_USE_POLL */
00168 };
00169 
00170 #define _PR_IOQ(_cpu)                     ((_cpu)->md.md_unix.ioQ)
00171 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
00172 #define _PR_FD_READ_SET(_cpu)             ((_cpu)->md.md_unix.fd_read_set)
00173 #define _PR_FD_READ_CNT(_cpu)             ((_cpu)->md.md_unix.fd_read_cnt)
00174 #define _PR_FD_WRITE_SET(_cpu)            ((_cpu)->md.md_unix.fd_write_set)
00175 #define _PR_FD_WRITE_CNT(_cpu)            ((_cpu)->md.md_unix.fd_write_cnt)
00176 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
00177 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
00178 #define _PR_IOQ_TIMEOUT(_cpu)             ((_cpu)->md.md_unix.ioq_timeout)
00179 #define _PR_IOQ_MAX_OSFD(_cpu)            ((_cpu)->md.md_unix.ioq_max_osfd)
00180 #define _PR_IOQ_OSFD_CNT(_cpu)            ((_cpu)->md.md_unix.ioq_osfd_cnt)
00181 #define _PR_IOQ_POLLFDS(_cpu)             ((_cpu)->md.md_unix.ioq_pollfds)
00182 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
00183 
00184 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)    32
00185 
00186 struct _MDCPU {
00187        struct _MDCPU_Unix md_unix;
00188 };
00189 
00190 #define _MD_INIT_LOCKS()
00191 #define _MD_NEW_LOCK(lock) PR_SUCCESS
00192 #define _MD_FREE_LOCK(lock)
00193 #define _MD_LOCK(lock)
00194 #define _MD_UNLOCK(lock)
00195 #define _MD_INIT_IO()
00196 #define _MD_IOQ_LOCK()
00197 #define _MD_IOQ_UNLOCK()
00198 
00199 /*
00200  * The following are copied from _sunos.h, _aix.h.  This means
00201  * some of them should probably be moved into _unixos.h.  But
00202  * _irix.h seems to be quite different in regard to these macros.
00203  */
00204 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
00205 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
00206 
00207 #define _MD_EARLY_INIT             _MD_EarlyInit
00208 #define _MD_FINAL_INIT             _PR_UnixInit
00209 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
00210 #define _MD_INIT_THREAD         _MD_InitializeThread
00211 #define _MD_EXIT_THREAD(thread)
00212 #define       _MD_SUSPEND_THREAD(thread)
00213 #define       _MD_RESUME_THREAD(thread)
00214 #define _MD_CLEAN_THREAD(_thread)
00215 
00216 /*
00217  * We wrapped the select() call.  _MD_SELECT refers to the built-in,
00218  * unwrapped version.
00219  */
00220 #include <sys/time.h>
00221 #include <sys/types.h>
00222 #include <sys/select.h>
00223 extern int _select(int nfds, fd_set *readfds, fd_set *writefds,
00224        fd_set *execptfds, struct timeval *timeout);
00225 #define _MD_SELECT _select
00226 
00227 #define _MD_POLL _poll
00228 extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
00229 
00230 #endif /* nspr_ncr_defs_h */