nsprpub/pr/include/md/_freebsd.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is the Netscape Portable Runtime (NSPR).
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998-2000
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #ifndef nspr_freebsd_defs_h___
  39 #define nspr_freebsd_defs_h___
  40
  41 #include "prthread.h"
  42
  43 #if __FreeBSD__ >= 2
  44 #include <osreldate.h>  /* for __FreeBSD_version */
  45 #endif
  46 #include <sys/syscall.h>
  47
  48 #define PR_LINKER_ARCH  "freebsd"
  49 #define _PR_SI_SYSNAME  "FREEBSD"
  50 #if defined(__i386__)
  51 #define _PR_SI_ARCHITECTURE "x86"
  52 #elif defined(__alpha__)
  53 #define _PR_SI_ARCHITECTURE "alpha"
  54 #elif defined(__sparc__)
  55 #define _PR_SI_ARCHITECTURE "sparc"
  56 #elif defined(__ia64__)
  57 #define _PR_SI_ARCHITECTURE "ia64"
  58 #elif defined(__amd64__)
  59 #define _PR_SI_ARCHITECTURE "amd64"
  60 #else
  61 #error "Unknown CPU architecture"
  62 #endif
  63 #if defined(__ELF__)
  64 #define PR_DLL_SUFFIX          ".so"
  65 #else
  66 #define PR_DLL_SUFFIX          ".so.1.0"
  67 #endif
  68
  69 #define _PR_VMBASE              0x30000000
  70 #define _PR_STACK_VMBASE        0x50000000
  71 #define _MD_DEFAULT_STACK_SIZE  65536L
  72 #define _MD_MMAP_FLAGS          MAP_PRIVATE
  73
  74 #undef  HAVE_STACK_GROWING_UP
  75 #define HAVE_DLL
  76 #define USE_DLFCN
  77 #define _PR_HAVE_SOCKADDR_LEN
  78 #define _PR_STAT_HAS_ST_ATIMESPEC
  79 #define _PR_NO_LARGE_FILES
  80
  81 #if defined(_PR_PTHREADS)
  82 #if __FreeBSD_version >= 400008
  83 /*
  84  * libc_r before this version of FreeBSD doesn't have poll().
  85  * Although libc has poll(), it is not thread-safe so we can't
  86  * use it in the pthreads version.
  87  */
  88 #define _PR_POLL_AVAILABLE
  89 #endif
  90 #else
  91 #if __FreeBSD_version >= 300000
  92 #define _PR_POLL_AVAILABLE
  93 #define _PR_USE_POLL
  94 #endif
  95 #endif
  96
  97 #define _PR_HAVE_SYSV_SEMAPHORES
  98 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
  99
 100 #if __FreeBSD_version >= 400014
 101 #define _PR_INET6
 102 #define _PR_HAVE_INET_NTOP
 103 #define _PR_HAVE_GETHOSTBYNAME2
 104 #define _PR_HAVE_GETADDRINFO
 105 #define _PR_INET6_PROBE
 106 #define _PR_IPV6_V6ONLY_PROBE
 107 #endif
 108
 109 #define USE_SETJMP
 110
 111 #ifndef _PR_PTHREADS
 112 #include <setjmp.h>
 113
 114 #define PR_CONTEXT_TYPE sigjmp_buf
 115
 116 #define CONTEXT(_th) ((_th)->md.context)
 117
 118 #define _MD_GET_SP(_th)    (_th)->md.context[0]._sjb[2]
 119 #define PR_NUM_GCREGS   _JBLEN
 120
 121 /*
 122 ** Initialize a thread context to run "_main()" when started
 123 */
 124 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
 125 {  \
 126     *status = PR_TRUE;  \
 127     if (sigsetjmp(CONTEXT(_thread), 1)) {  \
 128         _main();  \
 129     }  \
 130     _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
 131 }
 132
 133 #define _MD_SWITCH_CONTEXT(_thread)  \
 134     if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
 135         (_thread)->md.errcode = errno;  \
 136         _PR_Schedule();  \
 137     }
 138
 139 /*
 140 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
 141 */
 142 #define _MD_RESTORE_CONTEXT(_thread) \
 143 {   \
 144     errno = (_thread)->md.errcode;  \
 145     _MD_SET_CURRENT_THREAD(_thread);  \
 146     siglongjmp(CONTEXT(_thread), 1);  \
 147 }
 148
 149 /* Machine-dependent (MD) data structures */
 150
 151 struct _MDThread {
 152     PR_CONTEXT_TYPE context;
 153     int id;
 154     int errcode;
 155 };
 156
 157 struct _MDThreadStack {
 158     PRInt8 notused;
 159 };
 160
 161 struct _MDLock {
 162     PRInt8 notused;
 163 };
 164
 165 struct _MDSemaphore {
 166     PRInt8 notused;
 167 };
 168
 169 struct _MDCVar {
 170     PRInt8 notused;
 171 };
 172
 173 struct _MDSegment {
 174     PRInt8 notused;
 175 };
 176
 177 /*
 178  * md-specific cpu structure field
 179  */
 180 #define _PR_MD_MAX_OSFD FD_SETSIZE
 181
 182 struct _MDCPU_Unix {
 183     PRCList ioQ;
 184     PRUint32 ioq_timeout;
 185     PRInt32 ioq_max_osfd;
 186     PRInt32 ioq_osfd_cnt;
 187 #ifndef _PR_USE_POLL
 188     fd_set fd_read_set, fd_write_set, fd_exception_set;
 189     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 190                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 191 #else
 192         struct pollfd *ioq_pollfds;
 193         int ioq_pollfds_size;
 194 #endif  /* _PR_USE_POLL */
 195 };
 196
 197 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 198 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 199 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 200 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 201 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 202 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 203 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 204 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 205 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 206 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 207 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 208 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 209 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 210
 211 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 212
 213 struct _MDCPU {
 214         struct _MDCPU_Unix md_unix;
 215 };
 216
 217 #define _MD_INIT_LOCKS()
 218 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 219 #define _MD_FREE_LOCK(lock)
 220 #define _MD_LOCK(lock)
 221 #define _MD_UNLOCK(lock)
 222 #define _MD_INIT_IO()
 223 #define _MD_IOQ_LOCK()
 224 #define _MD_IOQ_UNLOCK()
 225
 226 extern PRStatus _MD_InitializeThread(PRThread *thread);
 227
 228 #define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
 229 #define _MD_INIT_THREAD                 _MD_InitializeThread
 230 #define _MD_EXIT_THREAD(thread)
 231 #define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
 232 #define _MD_RESUME_THREAD(thread)       _MD_resume_thread
 233 #define _MD_CLEAN_THREAD(_thread)
 234
 235 extern PRStatus _MD_CREATE_THREAD(
 236     PRThread *thread,
 237     void (*start) (void *),
 238     PRThreadPriority priority,
 239     PRThreadScope scope,
 240     PRThreadState state,
 241     PRUint32 stackSize);
 242 extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
 243 extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
 244 extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
 245 extern void _MD_YIELD(void);
 246
 247 #endif /* ! _PR_PTHREADS */
 248
 249 extern void _MD_EarlyInit(void);
 250 extern PRIntervalTime _PR_UNIX_GetInterval(void);
 251 extern PRIntervalTime _PR_UNIX_TicksPerSecond(void);
 252
 253 #define _MD_EARLY_INIT                  _MD_EarlyInit
 254 #define _MD_FINAL_INIT                  _PR_UnixInit
 255 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
 256 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
 257
 258 /*
 259  * We wrapped the select() call.  _MD_SELECT refers to the built-in,
 260  * unwrapped version.
 261  */
 262 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
 263
 264 #if defined(_PR_POLL_AVAILABLE)
 265 #include <poll.h>
 266 #define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
 267 #endif
 268
 269 /* freebsd has INADDR_LOOPBACK defined, but in /usr/include/rpc/types.h, and I didn't
 270    want to be including that.. */
 271 #ifndef INADDR_LOOPBACK
 272 #define INADDR_LOOPBACK         (u_long)0x7F000001
 273 #endif
 274
 275 /* For writev() */
 276 #include <sys/uio.h>
 277
 278 #endif /* nspr_freebsd_defs_h___ */