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_rhapsody_defs_h___ 36 #define nspr_rhapsody_defs_h___ 37 38 #include "prthread.h" 39 40 #include <sys/syscall.h> 41 42 #define PR_LINKER_ARCH "rhapsody" 43 #define _PR_SI_SYSNAME "RHAPSODY" 44 #ifdef i386 45 #define _PR_SI_ARCHITECTURE "x86" 46 #else 47 #define _PR_SI_ARCHITECTURE "ppc" 48 #endif 49 #define PR_DLL_SUFFIX ".dylib" 50 51 #define _PR_VMBASE 0x30000000 52 #define _PR_STACK_VMBASE 0x50000000 53 #define _MD_DEFAULT_STACK_SIZE 65536L 54 #define _MD_MMAP_FLAGS MAP_PRIVATE 55 56 #undef HAVE_STACK_GROWING_UP 57 #define HAVE_DLL 58 #define USE_MACH_DYLD 59 #define _PR_HAVE_SOCKADDR_LEN 60 #define _PR_STAT_HAS_ST_ATIMESPEC 61 #define _PR_NO_LARGE_FILES 62 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY 63 64 #define USE_SETJMP 65 66 #if !defined(_PR_PTHREADS) 67 68 #include <setjmp.h> 69 70 #define PR_CONTEXT_TYPE jmp_buf 71 72 #define CONTEXT(_th) ((_th)->md.context) 73 #define _MD_GET_SP(_th) (((struct sigcontext *) (_th)->md.context)->sc_onstack) 74 #define PR_NUM_GCREGS _JBLEN 75 76 /* 77 ** Initialize a thread context to run "_main()" when started 78 */ 79 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 80 { \ 81 *status = PR_TRUE; \ 82 if (setjmp(CONTEXT(_thread))) { \ 83 _main(); \ 84 } \ 85 _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \ 86 } 87 88 #define _MD_SWITCH_CONTEXT(_thread) \ 89 if (!setjmp(CONTEXT(_thread))) { \ 90 (_thread)->md.errcode = errno; \ 91 _PR_Schedule(); \ 92 } 93 94 /* 95 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 96 */ 97 #define _MD_RESTORE_CONTEXT(_thread) \ 98 { \ 99 errno = (_thread)->md.errcode; \ 100 _MD_SET_CURRENT_THREAD(_thread); \ 101 longjmp(CONTEXT(_thread), 1); \ 102 } 103 104 /* Machine-dependent (MD) data structures */ 105 106 struct _MDThread { 107 PR_CONTEXT_TYPE context; 108 int id; 109 int errcode; 110 }; 111 112 struct _MDThreadStack { 113 PRInt8 notused; 114 }; 115 116 struct _MDLock { 117 PRInt8 notused; 118 }; 119 120 struct _MDSemaphore { 121 PRInt8 notused; 122 }; 123 124 struct _MDCVar { 125 PRInt8 notused; 126 }; 127 128 struct _MDSegment { 129 PRInt8 notused; 130 }; 131 132 /* 133 * md-specific cpu structure field 134 */ 135 #define _PR_MD_MAX_OSFD FD_SETSIZE 136 137 struct _MDCPU_Unix { 138 PRCList ioQ; 139 PRUint32 ioq_timeout; 140 PRInt32 ioq_max_osfd; 141 PRInt32 ioq_osfd_cnt; 142 #ifndef _PR_USE_POLL 143 fd_set fd_read_set, fd_write_set, fd_exception_set; 144 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], 145 fd_exception_cnt[_PR_MD_MAX_OSFD]; 146 #else 147 struct pollfd *ioq_pollfds; 148 int ioq_pollfds_size; 149 #endif /* _PR_USE_POLL */ 150 }; 151 152 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) 153 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 154 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 155 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 156 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 157 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 158 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 159 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 160 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 161 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 162 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 163 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 164 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 165 166 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 167 168 struct _MDCPU { 169 struct _MDCPU_Unix md_unix; 170 }; 171 172 #define _MD_INIT_LOCKS() 173 #define _MD_NEW_LOCK(lock) PR_SUCCESS 174 #define _MD_FREE_LOCK(lock) 175 #define _MD_LOCK(lock) 176 #define _MD_UNLOCK(lock) 177 #define _MD_INIT_IO() 178 #define _MD_IOQ_LOCK() 179 #define _MD_IOQ_UNLOCK() 180 181 extern PRStatus _MD_InitializeThread(PRThread *thread); 182 183 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 184 #define _MD_INIT_THREAD _MD_InitializeThread 185 #define _MD_EXIT_THREAD(thread) 186 #define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread 187 #define _MD_RESUME_THREAD(thread) _MD_resume_thread 188 #define _MD_CLEAN_THREAD(_thread) 189 190 extern PRStatus _MD_CREATE_THREAD( 191 PRThread *thread, 192 void (*start) (void *), 193 PRThreadPriority priority, 194 PRThreadScope scope, 195 PRThreadState state, 196 PRUint32 stackSize); 197 extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri); 198 extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout); 199 extern PRStatus _MD_WAKEUP_WAITER(PRThread *); 200 extern void _MD_YIELD(void); 201 202 #endif /* ! _PR_PTHREADS */ 203 204 #define _MD_EARLY_INIT _MD_EarlyInit 205 #define _MD_FINAL_INIT _PR_UnixInit 206 #define _MD_GET_INTERVAL _PR_UNIX_GetInterval 207 #define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond 208 209 extern void _MD_EarlyInit(void); 210 extern PRIntervalTime _PR_UNIX_GetInterval(void); 211 extern PRIntervalTime _PR_UNIX_TicksPerSecond(void); 212 213 /* 214 * We wrapped the select() call. _MD_SELECT refers to the built-in, 215 * unwrapped version. 216 */ 217 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv) 218 219 /* For writev() */ 220 #include <sys/uio.h> 221 222 #endif /* nspr_rhapsody_defs_h___ */ 223
