1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* 3 * The contents of this file are subject to the Mozilla Public 4 * License Version 1.1 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of 6 * the License at http://www.mozilla.org/MPL/ 7 * 8 * Software distributed under the License is distributed on an "AS 9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 10 * implied. See the License for the specific language governing 11 * rights and limitations under the License. 12 * 13 * The Original Code is the Netscape Portable Runtime (NSPR). 14 * 15 * The Initial Developer of the Original Code is Netscape 16 * Communications Corporation. Portions created by Netscape are 17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All 18 * Rights Reserved. 19 * 20 * Contributor(s): 21 * 22 * Alternatively, the contents of this file may be used under the 23 * terms of the GNU General Public License Version 2 or later (the 24 * "GPL"), in which case the provisions of the GPL are applicable 25 * instead of those above. If you wish to allow use of your 26 * version of this file only under the terms of the GPL and not to 27 * allow others to use your version of this file under the MPL, 28 * indicate your decision by deleting the provisions above and 29 * replace them with the notice and other provisions required by 30 * the GPL. If you do not delete the provisions above, a recipient 31 * may use your version of this file under either the MPL or the 32 * GPL. 33 */ 34 35 #ifndef nspr_dgux_defs_h___ 36 #define nspr_dgux_defs_h___ 37 38 /* 39 * Internal configuration macros 40 */ 41 42 #define PR_LINKER_ARCH "dgux" 43 #define _PR_SI_SYSNAME "DGUX" 44 #define _PR_SI_ARCHITECTURE "x86" 45 #define PR_DLL_SUFFIX ".so" 46 47 #define _PR_VMBASE 0x30000000 48 #define _PR_STACK_VMBASE 0x50000000 49 #define _MD_DEFAULT_STACK_SIZE 65536L 50 #define _MD_MMAP_FLAGS MAP_PRIVATE 51 52 #ifndef HAVE_WEAK_IO_SYMBOLS 53 #define HAVE_WEAK_IO_SYMBOLS 54 #endif 55 56 #undef HAVE_STACK_GROWING_UP 57 #define HAVE_NETCONFIG 58 #define HAVE_DLL 59 #define USE_DLFCN 60 #define NEED_STRFTIME_LOCK 61 #define NEED_TIME_R 62 #define _PR_NEED_STRCASECMP 63 #define _PR_POLL_AVAILABLE 64 #define _PR_USE_POLL 65 #define _PR_NO_LARGE_FILES 66 #define _PR_STAT_HAS_ONLY_ST_ATIME 67 68 #define USE_SETJMP 69 70 #include <setjmp.h> 71 72 #define _SETJMP setjmp 73 #define _LONGJMP longjmp 74 #define _PR_CONTEXT_TYPE jmp_buf 75 #define _MD_GET_SP(_t) (_t)->md.context[4] 76 #define _PR_NUM_GCREGS _JBLEN 77 78 #define CONTEXT(_th) ((_th)->md.context) 79 80 /* 81 ** Initialize the thread context preparing it to execute _main. 82 */ 83 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 84 { \ 85 *status = PR_TRUE; \ 86 if(_SETJMP(CONTEXT(_thread))) (*_main)(); \ 87 _MD_GET_SP(_thread) = (int) ((_sp) - 128); \ 88 } 89 90 #define _MD_SWITCH_CONTEXT(_thread) \ 91 if (!_SETJMP(CONTEXT(_thread))) { \ 92 (_thread)->md.errcode = errno; \ 93 _PR_Schedule(); \ 94 } 95 96 /* 97 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 98 */ 99 #define _MD_RESTORE_CONTEXT(_thread) \ 100 { \ 101 errno = (_thread)->md.errcode; \ 102 _MD_SET_CURRENT_THREAD(_thread); \ 103 _LONGJMP(CONTEXT(_thread), 1); \ 104 } 105 106 /* Machine-dependent (MD) data structures. 107 * Don't use SVR4 native threads (yet). 108 */ 109 110 struct _MDThread { 111 _PR_CONTEXT_TYPE context; 112 int id; 113 int errcode; 114 }; 115 116 struct _MDThreadStack { 117 PRInt8 notused; 118 }; 119 120 struct _MDLock { 121 PRInt8 notused; 122 }; 123 124 struct _MDSemaphore { 125 PRInt8 notused; 126 }; 127 128 struct _MDCVar { 129 PRInt8 notused; 130 }; 131 132 struct _MDSegment { 133 PRInt8 notused; 134 }; 135 136 /* 137 * md-specific cpu structure field 138 */ 139 #define _PR_MD_MAX_OSFD FD_SETSIZE 140 141 struct _MDCPU_Unix { 142 PRCList ioQ; 143 PRUint32 ioq_timeout; 144 PRInt32 ioq_max_osfd; 145 PRInt32 ioq_osfd_cnt; 146 #ifndef _PR_USE_POLL 147 fd_set fd_read_set, fd_write_set, fd_exception_set; 148 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], 149 fd_exception_cnt[_PR_MD_MAX_OSFD]; 150 #else 151 struct pollfd *ioq_pollfds; 152 int ioq_pollfds_size; 153 #endif /* _PR_USE_POLL */ 154 }; 155 156 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) 157 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 158 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 159 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 160 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 161 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 162 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 163 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 164 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 165 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 166 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 167 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 168 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 169 170 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 171 172 struct _MDCPU { 173 struct _MDCPU_Unix md_unix; 174 }; 175 176 #define _MD_INIT_LOCKS() 177 #define _MD_NEW_LOCK(lock) PR_SUCCESS 178 #define _MD_FREE_LOCK(lock) 179 #define _MD_LOCK(lock) 180 #define _MD_UNLOCK(lock) 181 #define _MD_INIT_IO() 182 #define _MD_IOQ_LOCK() 183 #define _MD_IOQ_UNLOCK() 184 185 /* 186 * The following are copied from _sunos.h, _aix.h. This means 187 * some of them should probably be moved into _unixos.h. But 188 * _irix.h seems to be quite different in regard to these macros. 189 */ 190 #define _MD_GET_INTERVAL _PR_UNIX_GetInterval 191 #define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond 192 193 #define _MD_EARLY_INIT _MD_EarlyInit 194 #define _MD_FINAL_INIT _PR_UnixInit 195 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 196 #define _MD_INIT_THREAD _MD_InitializeThread 197 #define _MD_EXIT_THREAD(thread) 198 #define _MD_SUSPEND_THREAD(thread) 199 #define _MD_RESUME_THREAD(thread) 200 #define _MD_CLEAN_THREAD(_thread) 201 202 /* 203 * We wrapped the select() call. _MD_SELECT refers to the built-in, 204 * unwrapped version. 205 */ 206 #include <unistd.h> 207 #include <sys/types.h> 208 #include <sys/time.h> 209 extern int _select(int nfds, fd_set *readfds, fd_set *writefds, 210 fd_set *execptfds, struct timeval *timeout); 211 #define _MD_SELECT _select 212 213 #define _MD_POLL _poll 214 #include <poll.h> 215 #include <stropts.h> 216 extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout); 217 218 #endif /* nspr_dgux_defs_h___ */ 219
