third_party/npapi/npspy/extern/nspr/md/_dgux.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_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___ */