nsprpub/pr/include/md/_bsdi.h

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  15  * The Original Code is the Netscape Portable Runtime (NSPR).
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  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #ifndef nspr_bsdi_defs_h___
  39 #define nspr_bsdi_defs_h___
  40
  41 /*
  42  * Internal configuration macros
  43  */
  44
  45 #include <sys/param.h>  /* for _BSDI_VERSION */
  46
  47 #define PR_LINKER_ARCH  "bsdi"
  48 #define _PR_SI_SYSNAME "BSDI"
  49 #if defined(__i386__)
  50 #define _PR_SI_ARCHITECTURE "x86"
  51 #elif defined(__sparc__)
  52 #define _PR_SI_ARCHITECTURE "sparc"
  53 #else
  54 #error "Unknown CPU architecture"
  55 #endif
  56 #define PR_DLL_SUFFIX           ".so"
  57
  58 #define _PR_STACK_VMBASE        0x50000000
  59 #define _MD_DEFAULT_STACK_SIZE  65536L
  60 #define _MD_MMAP_FLAGS          MAP_PRIVATE
  61
  62 #define HAVE_BSD_FLOCK
  63 #define NEED_TIME_R
  64 #define _PR_HAVE_SOCKADDR_LEN
  65 #define _PR_NO_LARGE_FILES
  66
  67 #define USE_SETJMP
  68
  69 /* BSD/OS 4.3 and newer all have IPv6 support */
  70 #if _BSDI_VERSION >= 200105
  71 #define _PR_INET6
  72 #define _PR_HAVE_INET_NTOP
  73 #define _PR_HAVE_GETIPNODEBYNAME
  74 #define _PR_HAVE_GETIPNODEBYADDR
  75 #define _PR_HAVE_GETADDRINFO
  76 #define _PR_INET6_PROBE
  77 #endif
  78
  79 #ifndef _PR_PTHREADS
  80
  81 #include <setjmp.h>
  82
  83 #if defined(_PR_BSDI_JMPBUF_IS_ARRAY)
  84 #define _MD_GET_SP(_t)    (_t)->md.context[2]
  85 #elif defined(_PR_BSDI_JMPBUF_IS_STRUCT)
  86 #define _MD_GET_SP(_t)    (_t)->md.context[0].jb_esp
  87 #else
  88 #error "Unknown BSDI jmp_buf type"
  89 #endif
  90
  91 #define PR_NUM_GCREGS   _JBLEN
  92 #define PR_CONTEXT_TYPE jmp_buf
  93
  94 #define CONTEXT(_th) ((_th)->md.context)
  95
  96 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)     \
  97 {                                                                 \
  98     *status = PR_TRUE; \
  99     if (setjmp(CONTEXT(_thread))) {                               \
 100         _main();                                          \
 101     }                                                             \
 102     _MD_GET_SP(_thread) = (int) (_sp - 64); \
 103 }
 104
 105 #define _MD_SWITCH_CONTEXT(_thread)  \
 106     if (!setjmp(CONTEXT(_thread))) { \
 107         (_thread)->md.errcode = errno;  \
 108         _PR_Schedule();              \
 109     }
 110
 111 /*
 112 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
 113 */
 114 #define _MD_RESTORE_CONTEXT(_thread) \
 115 {                                    \
 116     errno = (_thread)->md.errcode;           \
 117     _MD_SET_CURRENT_THREAD(_thread); \
 118     longjmp(CONTEXT(_thread), 1);    \
 119 }
 120
 121 /* Machine-dependent (MD) data structures */
 122
 123 struct _MDThread {
 124     PR_CONTEXT_TYPE context;
 125     int id;
 126     int errcode;
 127 };
 128
 129 struct _MDThreadStack {
 130     PRInt8 notused;
 131 };
 132
 133 struct _MDLock {
 134     PRInt8 notused;
 135 };
 136
 137 struct _MDSemaphore {
 138     PRInt8 notused;
 139 };
 140
 141 struct _MDCVar {
 142     PRInt8 notused;
 143 };
 144
 145 struct _MDSegment {
 146     PRInt8 notused;
 147 };
 148
 149 /*
 150  * md-specific cpu structure field
 151  */
 152 #define _PR_MD_MAX_OSFD FD_SETSIZE
 153
 154 struct _MDCPU_Unix {
 155     PRCList ioQ;
 156     PRUint32 ioq_timeout;
 157     PRInt32 ioq_max_osfd;
 158     PRInt32 ioq_osfd_cnt;
 159 #ifndef _PR_USE_POLL
 160     fd_set fd_read_set, fd_write_set, fd_exception_set;
 161     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 162                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 163 #else
 164         struct pollfd *ioq_pollfds;
 165         int ioq_pollfds_size;
 166 #endif  /* _PR_USE_POLL */
 167 };
 168
 169 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 170 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 171 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 172 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 173 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 174 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 175 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 176 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 177 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 178 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 179 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 180 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 181 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 182
 183 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 184
 185 struct _MDCPU {
 186         struct _MDCPU_Unix md_unix;
 187 };
 188
 189 #define _MD_INIT_LOCKS()
 190 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 191 #define _MD_FREE_LOCK(lock)
 192 #define _MD_LOCK(lock)
 193 #define _MD_UNLOCK(lock)
 194 #define _MD_INIT_IO()
 195 #define _MD_IOQ_LOCK()
 196 #define _MD_IOQ_UNLOCK()
 197
 198 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
 199 #define _MD_INIT_THREAD         _MD_InitializeThread
 200 #define _MD_EXIT_THREAD(thread)
 201 #define _MD_CLEAN_THREAD(_thread)
 202
 203 #endif /* ! _PR_PTHREADS */
 204
 205 #define _MD_EARLY_INIT          _MD_EarlyInit
 206 #define _MD_FINAL_INIT                  _PR_UnixInit
 207
 208 #include <sys/syscall.h>
 209 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
 210
 211 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
 212 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
 213
 214 #endif /* nspr_bsdi_defs_h___ */