third_party/npapi/npspy/extern/nspr/md/_freebsd.h

   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_freebsd_defs_h___
  36 #define nspr_freebsd_defs_h___
  37
  38 #include "prthread.h"
  39
  40 #if __FreeBSD__ >= 2
  41 #include <osreldate.h>  /* for __FreeBSD_version */
  42 #endif
  43 #include <sys/syscall.h>
  44
  45 #define PR_LINKER_ARCH  "freebsd"
  46 #define _PR_SI_SYSNAME  "FREEBSD"
  47 #if defined(__i386__)
  48 #define _PR_SI_ARCHITECTURE "x86"
  49 #elif defined(__alpha)
  50 #define _PR_SI_ARCHITECTURE "alpha"
  51 #elif defined(__sparc__)
  52 #define _PR_SI_ARCHITECTURE "sparc"
  53 #else
  54 #error "Unknown CPU architecture"
  55 #endif
  56 #if defined(__ELF__)
  57 #define PR_DLL_SUFFIX          ".so"
  58 #else
  59 #define PR_DLL_SUFFIX          ".so.1.0"
  60 #endif
  61
  62 #define _PR_VMBASE              0x30000000
  63 #define _PR_STACK_VMBASE        0x50000000
  64 #define _MD_DEFAULT_STACK_SIZE  65536L
  65 #define _MD_MMAP_FLAGS          MAP_PRIVATE
  66
  67 #undef  HAVE_STACK_GROWING_UP
  68 #define HAVE_DLL
  69 #define USE_DLFCN
  70 #define _PR_HAVE_SOCKADDR_LEN
  71 #define _PR_STAT_HAS_ST_ATIMESPEC
  72 #define _PR_NO_LARGE_FILES
  73
  74 #if defined(_PR_PTHREADS)
  75 #if __FreeBSD_version >= 400008
  76 /*
  77  * libc_r before this version of FreeBSD doesn't have poll().
  78  * Although libc has poll(), it is not thread-safe so we can't
  79  * use it in the pthreads version.
  80  */
  81 #define _PR_POLL_AVAILABLE
  82 #endif
  83 #else
  84 #if __FreeBSD_version >= 300000
  85 #define _PR_POLL_AVAILABLE
  86 #define _PR_USE_POLL
  87 #endif
  88 #endif
  89
  90 #define _PR_HAVE_SYSV_SEMAPHORES
  91 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
  92
  93 #if __FreeBSD_version >= 400014
  94 #define _PR_INET6
  95 #define _PR_HAVE_INET_NTOP
  96 #define _PR_HAVE_GETHOSTBYNAME2
  97 #define _PR_HAVE_GETADDRINFO
  98 #define _PR_INET6_PROBE
  99 #endif
 100
 101 #define USE_SETJMP
 102
 103 #ifndef _PR_PTHREADS
 104 #include <setjmp.h>
 105
 106 #define PR_CONTEXT_TYPE sigjmp_buf
 107
 108 #define CONTEXT(_th) ((_th)->md.context)
 109
 110 #define _MD_GET_SP(_th)    (_th)->md.context[0]._sjb[2]
 111 #define PR_NUM_GCREGS   _JBLEN
 112
 113 /*
 114 ** Initialize a thread context to run "_main()" when started
 115 */
 116 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
 117 {  \
 118     *status = PR_TRUE;  \
 119     if (sigsetjmp(CONTEXT(_thread), 1)) {  \
 120         _main();  \
 121     }  \
 122     _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
 123 }
 124
 125 #define _MD_SWITCH_CONTEXT(_thread)  \
 126     if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
 127         (_thread)->md.errcode = errno;  \
 128         _PR_Schedule();  \
 129     }
 130
 131 /*
 132 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
 133 */
 134 #define _MD_RESTORE_CONTEXT(_thread) \
 135 {   \
 136     errno = (_thread)->md.errcode;  \
 137     _MD_SET_CURRENT_THREAD(_thread);  \
 138     siglongjmp(CONTEXT(_thread), 1);  \
 139 }
 140
 141 /* Machine-dependent (MD) data structures */
 142
 143 struct _MDThread {
 144     PR_CONTEXT_TYPE context;
 145     int id;
 146     int errcode;
 147 };
 148
 149 struct _MDThreadStack {
 150     PRInt8 notused;
 151 };
 152
 153 struct _MDLock {
 154     PRInt8 notused;
 155 };
 156
 157 struct _MDSemaphore {
 158     PRInt8 notused;
 159 };
 160
 161 struct _MDCVar {
 162     PRInt8 notused;
 163 };
 164
 165 struct _MDSegment {
 166     PRInt8 notused;
 167 };
 168
 169 /*
 170  * md-specific cpu structure field
 171  */
 172 #define _PR_MD_MAX_OSFD FD_SETSIZE
 173
 174 struct _MDCPU_Unix {
 175     PRCList ioQ;
 176     PRUint32 ioq_timeout;
 177     PRInt32 ioq_max_osfd;
 178     PRInt32 ioq_osfd_cnt;
 179 #ifndef _PR_USE_POLL
 180     fd_set fd_read_set, fd_write_set, fd_exception_set;
 181     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 182                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 183 #else
 184         struct pollfd *ioq_pollfds;
 185         int ioq_pollfds_size;
 186 #endif  /* _PR_USE_POLL */
 187 };
 188
 189 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 190 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 191 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 192 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 193 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 194 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 195 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 196 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 197 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 198 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 199 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 200 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 201 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 202
 203 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 204
 205 struct _MDCPU {
 206         struct _MDCPU_Unix md_unix;
 207 };
 208
 209 #define _MD_INIT_LOCKS()
 210 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 211 #define _MD_FREE_LOCK(lock)
 212 #define _MD_LOCK(lock)
 213 #define _MD_UNLOCK(lock)
 214 #define _MD_INIT_IO()
 215 #define _MD_IOQ_LOCK()
 216 #define _MD_IOQ_UNLOCK()
 217
 218 extern PRStatus _MD_InitializeThread(PRThread *thread);
 219
 220 #define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
 221 #define _MD_INIT_THREAD                 _MD_InitializeThread
 222 #define _MD_EXIT_THREAD(thread)
 223 #define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
 224 #define _MD_RESUME_THREAD(thread)       _MD_resume_thread
 225 #define _MD_CLEAN_THREAD(_thread)
 226
 227 extern PRStatus _MD_CREATE_THREAD(
 228     PRThread *thread,
 229     void (*start) (void *),
 230     PRThreadPriority priority,
 231     PRThreadScope scope,
 232     PRThreadState state,
 233     PRUint32 stackSize);
 234 extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
 235 extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
 236 extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
 237 extern void _MD_YIELD(void);
 238
 239 #endif /* ! _PR_PTHREADS */
 240
 241 extern void _MD_EarlyInit(void);
 242 extern PRIntervalTime _PR_UNIX_GetInterval(void);
 243 extern PRIntervalTime _PR_UNIX_TicksPerSecond(void);
 244
 245 #define _MD_EARLY_INIT                  _MD_EarlyInit
 246 #define _MD_FINAL_INIT                  _PR_UnixInit
 247 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
 248 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
 249
 250 /*
 251  * We wrapped the select() call.  _MD_SELECT refers to the built-in,
 252  * unwrapped version.
 253  */
 254 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
 255
 256 #if defined(_PR_POLL_AVAILABLE)
 257 #include <poll.h>
 258 #define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
 259 #endif
 260
 261 /* freebsd has INADDR_LOOPBACK defined, but in /usr/include/rpc/types.h, and I didn't
 262    want to be including that.. */
 263 #ifndef INADDR_LOOPBACK
 264 #define INADDR_LOOPBACK         (u_long)0x7F000001
 265 #endif
 266
 267 /* For writev() */
 268 #include <sys/uio.h>
 269
 270 #endif /* nspr_freebsd_defs_h___ */