third_party/npapi/npspy/extern/nspr/md/_bsdi.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_bsdi_defs_h___
  36 #define nspr_bsdi_defs_h___
  37
  38 /*
  39  * Internal configuration macros
  40  */
  41
  42 #include <sys/param.h>  /* for _BSDI_VERSION */
  43
  44 #define PR_LINKER_ARCH  "bsdi"
  45 #define _PR_SI_SYSNAME "BSDI"
  46 #if defined(__i386__)
  47 #define _PR_SI_ARCHITECTURE "x86"
  48 #elif defined(__sparc__)
  49 #define _PR_SI_ARCHITECTURE "sparc"
  50 #else
  51 #error "Unknown CPU architecture"
  52 #endif
  53 #define PR_DLL_SUFFIX           ".so"
  54
  55 #define _PR_STACK_VMBASE        0x50000000
  56 #define _MD_DEFAULT_STACK_SIZE  65536L
  57 #define _MD_MMAP_FLAGS          MAP_PRIVATE
  58
  59 #define HAVE_BSD_FLOCK
  60 #define NEED_TIME_R
  61 #define _PR_HAVE_SOCKADDR_LEN
  62 #define _PR_NO_LARGE_FILES
  63
  64 #define USE_SETJMP
  65
  66 /* BSD/OS 4.3 and newer all have IPv6 support */
  67 #if _BSDI_VERSION >= 200105
  68 #define _PR_INET6
  69 #define _PR_HAVE_INET_NTOP
  70 #define _PR_HAVE_GETIPNODEBYNAME
  71 #define _PR_HAVE_GETIPNODEBYADDR
  72 #define _PR_HAVE_GETADDRINFO
  73 #define _PR_INET6_PROBE
  74 #endif
  75
  76 #ifndef _PR_PTHREADS
  77
  78 #include <setjmp.h>
  79
  80 #if defined(_PR_BSDI_JMPBUF_IS_ARRAY)
  81 #define _MD_GET_SP(_t)    (_t)->md.context[2]
  82 #elif defined(_PR_BSDI_JMPBUF_IS_STRUCT)
  83 #define _MD_GET_SP(_t)    (_t)->md.context[0].jb_esp
  84 #else
  85 #error "Unknown BSDI jmp_buf type"
  86 #endif
  87
  88 #define PR_NUM_GCREGS   _JBLEN
  89 #define PR_CONTEXT_TYPE jmp_buf
  90
  91 #define CONTEXT(_th) ((_th)->md.context)
  92
  93 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)     \
  94 {                                                                 \
  95     *status = PR_TRUE; \
  96     if (setjmp(CONTEXT(_thread))) {                               \
  97         _main();                                          \
  98     }                                                             \
  99     _MD_GET_SP(_thread) = (int) (_sp - 64); \
 100 }
 101
 102 #define _MD_SWITCH_CONTEXT(_thread)  \
 103     if (!setjmp(CONTEXT(_thread))) { \
 104         (_thread)->md.errcode = errno;  \
 105         _PR_Schedule();              \
 106     }
 107
 108 /*
 109 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
 110 */
 111 #define _MD_RESTORE_CONTEXT(_thread) \
 112 {                                    \
 113     errno = (_thread)->md.errcode;           \
 114     _MD_SET_CURRENT_THREAD(_thread); \
 115     longjmp(CONTEXT(_thread), 1);    \
 116 }
 117
 118 /* Machine-dependent (MD) data structures */
 119
 120 struct _MDThread {
 121     PR_CONTEXT_TYPE context;
 122     int id;
 123     int errcode;
 124 };
 125
 126 struct _MDThreadStack {
 127     PRInt8 notused;
 128 };
 129
 130 struct _MDLock {
 131     PRInt8 notused;
 132 };
 133
 134 struct _MDSemaphore {
 135     PRInt8 notused;
 136 };
 137
 138 struct _MDCVar {
 139     PRInt8 notused;
 140 };
 141
 142 struct _MDSegment {
 143     PRInt8 notused;
 144 };
 145
 146 /*
 147  * md-specific cpu structure field
 148  */
 149 #define _PR_MD_MAX_OSFD FD_SETSIZE
 150
 151 struct _MDCPU_Unix {
 152     PRCList ioQ;
 153     PRUint32 ioq_timeout;
 154     PRInt32 ioq_max_osfd;
 155     PRInt32 ioq_osfd_cnt;
 156 #ifndef _PR_USE_POLL
 157     fd_set fd_read_set, fd_write_set, fd_exception_set;
 158     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 159                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 160 #else
 161         struct pollfd *ioq_pollfds;
 162         int ioq_pollfds_size;
 163 #endif  /* _PR_USE_POLL */
 164 };
 165
 166 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 167 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 168 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 169 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 170 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 171 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 172 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 173 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 174 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 175 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 176 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 177 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 178 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 179
 180 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 181
 182 struct _MDCPU {
 183         struct _MDCPU_Unix md_unix;
 184 };
 185
 186 #define _MD_INIT_LOCKS()
 187 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 188 #define _MD_FREE_LOCK(lock)
 189 #define _MD_LOCK(lock)
 190 #define _MD_UNLOCK(lock)
 191 #define _MD_INIT_IO()
 192 #define _MD_IOQ_LOCK()
 193 #define _MD_IOQ_UNLOCK()
 194
 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_CLEAN_THREAD(_thread)
 199
 200 #endif /* ! _PR_PTHREADS */
 201
 202 #define _MD_EARLY_INIT          _MD_EarlyInit
 203 #define _MD_FINAL_INIT                  _PR_UnixInit
 204
 205 #include <sys/syscall.h>
 206 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
 207
 208 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
 209 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
 210
 211 #endif /* nspr_bsdi_defs_h___ */