gcc/ada/s-osinte-irix.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
   4 --                                                                          --
   5 --                   S Y S T E M . O S _ I N T E R F A C E                  --
   6 --                                                                          --
   7 --                                  S p e c                                 --
   8 --                                                                          --
   9 --             Copyright (C) 1991-1994, Florida State University            --
  10 --          Copyright (C) 1995-2011, Free Software Foundation, Inc.         --
  11 --                                                                          --
  12 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  15 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
  18 --                                                                          --
  19 -- As a special exception under Section 7 of GPL version 3, you are granted --
  20 -- additional permissions described in the GCC Runtime Library Exception,   --
  21 -- version 3.1, as published by the Free Software Foundation.               --
  22 --                                                                          --
  23 -- You should have received a copy of the GNU General Public License and    --
  24 -- a copy of the GCC Runtime Library Exception along with this program;     --
  25 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  26 -- <http://www.gnu.org/licenses/>.                                          --
  27 --                                                                          --
  28 -- GNARL was developed by the GNARL team at Florida State University.       --
  29 -- Extensive contributions were provided by Ada Core Technologies, Inc.     --
  30 --                                                                          --
  31 ------------------------------------------------------------------------------
  32
  33 --  This is the SGI Pthreads version of this package
  34
  35 --  This package encapsulates all direct interfaces to OS services that are
  36 --  needed by the tasking run-time (libgnarl).
  37
  38 --  PLEASE DO NOT add any with-clauses to this package or remove the pragma
  39 --  Preelaborate. This package is designed to be a bottom-level (leaf) package.
  40
  41 with Ada.Unchecked_Conversion;
  42
  43 with Interfaces.C;
  44
  45 package System.OS_Interface is
  46
  47    pragma Preelaborate;
  48
  49    pragma Linker_Options ("-lpthread");
  50
  51    subtype int            is Interfaces.C.int;
  52    subtype short          is Interfaces.C.short;
  53    subtype long           is Interfaces.C.long;
  54    subtype unsigned       is Interfaces.C.unsigned;
  55    subtype unsigned_short is Interfaces.C.unsigned_short;
  56    subtype unsigned_long  is Interfaces.C.unsigned_long;
  57    subtype unsigned_char  is Interfaces.C.unsigned_char;
  58    subtype plain_char     is Interfaces.C.plain_char;
  59    subtype size_t         is Interfaces.C.size_t;
  60
  61    -----------
  62    -- Errno --
  63    -----------
  64
  65    function errno return int;
  66    pragma Import (C, errno, "__get_errno");
  67
  68    EINTR     : constant := 4;   --  interrupted system call
  69    EAGAIN    : constant := 11;  --  No more processes
  70    ENOMEM    : constant := 12;  --  Not enough core
  71    EINVAL    : constant := 22;  --  Invalid argument
  72    ETIMEDOUT : constant := 145; --  Connection timed out
  73
  74    -------------
  75    -- Signals --
  76    -------------
  77
  78    Max_Interrupt : constant := 64;
  79    type Signal is new int range 0 .. Max_Interrupt;
  80    for Signal'Size use int'Size;
  81
  82    SIGHUP     : constant := 1; --  hangup
  83    SIGINT     : constant := 2; --  interrupt (rubout)
  84    SIGQUIT    : constant := 3; --  quit (ASCD FS)
  85    SIGILL     : constant := 4; --  illegal instruction (not reset)
  86    SIGTRAP    : constant := 5; --  trace trap (not reset)
  87    SIGIOT     : constant := 6; --  IOT instruction
  88    SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the future
  89    SIGEMT     : constant := 7; --  EMT instruction
  90    SIGFPE     : constant := 8; --  floating point exception
  91    SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
  92    SIGBUS     : constant := 10; --  bus error
  93    SIGSEGV    : constant := 11; --  segmentation violation
  94    SIGSYS     : constant := 12; --  bad argument to system call
  95    SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
  96    SIGALRM    : constant := 14; --  alarm clock
  97    SIGTERM    : constant := 15; --  software termination signal from kill
  98    SIGUSR1    : constant := 16; --  user defined signal 1
  99    SIGUSR2    : constant := 17; --  user defined signal 2
 100    SIGCLD     : constant := 18; --  alias for SIGCHLD
 101    SIGCHLD    : constant := 18; --  child status change
 102    SIGPWR     : constant := 19; --  power-fail restart
 103    SIGWINCH   : constant := 20; --  window size change
 104    SIGURG     : constant := 21; --  urgent condition on IO channel
 105    SIGPOLL    : constant := 22; --  pollable event occurred
 106    SIGIO      : constant := 22; --  I/O possible (Solaris SIGPOLL alias)
 107    SIGSTOP    : constant := 23; --  stop (cannot be caught or ignored)
 108    SIGTSTP    : constant := 24; --  user stop requested from tty
 109    SIGCONT    : constant := 25; --  stopped process has been continued
 110    SIGTTIN    : constant := 26; --  background tty read attempted
 111    SIGTTOU    : constant := 27; --  background tty write attempted
 112    SIGVTALRM  : constant := 28; --  virtual timer expired
 113    SIGPROF    : constant := 29; --  profiling timer expired
 114    SIGXCPU    : constant := 30; --  CPU time limit exceeded
 115    SIGXFSZ    : constant := 31; --  filesize limit exceeded
 116    SIGK32     : constant := 32; --  reserved for kernel (IRIX)
 117    SIGCKPT    : constant := 33; --  Checkpoint warning
 118    SIGRESTART : constant := 34; --  Restart warning
 119    SIGUME     : constant := 35; --  Uncorrectable memory error
 120    --  Signals defined for Posix 1003.1c
 121    SIGPTINTR    : constant := 47;
 122    SIGPTRESCHED : constant := 48;
 123    --  Posix 1003.1b signals
 124    SIGRTMIN   : constant := 49; --  Posix 1003.1b signals
 125    SIGRTMAX   : constant := 64; --  Posix 1003.1b signals
 126
 127    type sigset_t is private;
 128
 129    function sigaddset (set : access sigset_t; sig : Signal) return int;
 130    pragma Import (C, sigaddset, "sigaddset");
 131
 132    function sigdelset (set : access sigset_t; sig : Signal) return int;
 133    pragma Import (C, sigdelset, "sigdelset");
 134
 135    function sigfillset (set : access sigset_t) return int;
 136    pragma Import (C, sigfillset, "sigfillset");
 137
 138    function sigismember (set : access sigset_t; sig : Signal) return int;
 139    pragma Import (C, sigismember, "sigismember");
 140
 141    function sigemptyset (set : access sigset_t) return int;
 142    pragma Import (C, sigemptyset, "sigemptyset");
 143
 144    type array_type_2 is array (Integer range 0 .. 1) of int;
 145    type struct_sigaction is record
 146       sa_flags     : int;
 147       sa_handler   : System.Address;
 148       sa_mask      : sigset_t;
 149       sa_resv      : array_type_2;
 150    end record;
 151    pragma Convention (C, struct_sigaction);
 152
 153    type struct_sigaction_ptr is access all struct_sigaction;
 154
 155    SIG_BLOCK   : constant := 1;
 156    SIG_UNBLOCK : constant := 2;
 157    SIG_SETMASK : constant := 3;
 158
 159    SIG_DFL : constant := 0;
 160    SIG_IGN : constant := 1;
 161
 162    function sigaction
 163      (sig  : Signal;
 164       act  : struct_sigaction_ptr;
 165       oact : struct_sigaction_ptr := null) return int;
 166    pragma Import (C, sigaction, "sigaction");
 167
 168    ----------
 169    -- Time --
 170    ----------
 171
 172    type timespec is private;
 173    type timespec_ptr is access all timespec;
 174
 175    type clockid_t is new int;
 176
 177    SGI_CYCLECNTR_SIZE : constant := 165;
 178
 179    function syssgi (request : Interfaces.C.int) return Interfaces.C.ptrdiff_t;
 180    pragma Import (C, syssgi, "syssgi");
 181
 182    function clock_gettime
 183      (clock_id : clockid_t;
 184       tp       : access timespec) return int;
 185    pragma Import (C, clock_gettime, "clock_gettime");
 186
 187    function clock_getres
 188      (clock_id : clockid_t;
 189       tp       : access timespec) return int;
 190    pragma Import (C, clock_getres, "clock_getres");
 191
 192    function To_Duration (TS : timespec) return Duration;
 193    pragma Inline (To_Duration);
 194
 195    function To_Timespec (D : Duration) return timespec;
 196    pragma Inline (To_Timespec);
 197
 198    -------------------------
 199    -- Priority Scheduling --
 200    -------------------------
 201
 202    SCHED_FIFO  : constant := 1;
 203    SCHED_RR    : constant := 2;
 204    SCHED_TS    : constant := 3;
 205    SCHED_OTHER : constant := 3;
 206    SCHED_NP    : constant := 4;
 207
 208    function sched_get_priority_min (Policy : int) return int;
 209    pragma Import (C, sched_get_priority_min, "sched_get_priority_min");
 210
 211    function sched_get_priority_max (Policy : int) return int;
 212    pragma Import (C, sched_get_priority_max, "sched_get_priority_max");
 213
 214    -------------
 215    -- Process --
 216    -------------
 217
 218    type pid_t is private;
 219
 220    function kill (pid : pid_t; sig : Signal) return int;
 221    pragma Import (C, kill, "kill");
 222
 223    function getpid return pid_t;
 224    pragma Import (C, getpid, "getpid");
 225
 226    -------------
 227    -- Threads --
 228    -------------
 229
 230    type Thread_Body is access
 231      function (arg : System.Address) return System.Address;
 232    pragma Convention (C, Thread_Body);
 233
 234    function Thread_Body_Access is new
 235      Ada.Unchecked_Conversion (System.Address, Thread_Body);
 236
 237    type pthread_t           is private;
 238    subtype Thread_Id        is pthread_t;
 239
 240    type pthread_mutex_t     is limited private;
 241    type pthread_cond_t      is limited private;
 242    type pthread_attr_t      is limited private;
 243    type pthread_mutexattr_t is limited private;
 244    type pthread_condattr_t  is limited private;
 245    type pthread_key_t       is private;
 246
 247    PTHREAD_CREATE_DETACHED : constant := 1;
 248
 249    --  Read/Write lock not supported on SGI. To add support both types
 250    --  pthread_rwlock_t and pthread_rwlockattr_t must properly be defined
 251    --  with the associated routines pthread_rwlock_[init/destroy] and
 252    --  pthread_rwlock_[rdlock/wrlock/unlock].
 253
 254    subtype pthread_rwlock_t     is pthread_mutex_t;
 255    subtype pthread_rwlockattr_t is pthread_mutexattr_t;
 256
 257    -----------
 258    -- Stack --
 259    -----------
 260
 261    Alternate_Stack_Size : constant := 0;
 262    --  No alternate signal stack is used on this platform
 263
 264    ---------------------------------------
 265    -- Nonstandard Thread Initialization --
 266    ---------------------------------------
 267
 268    procedure pthread_init;
 269    pragma Inline (pthread_init);
 270    --  This is a dummy procedure to share some GNULLI files
 271
 272    -------------------------
 273    -- POSIX.1c  Section 3 --
 274    -------------------------
 275
 276    function sigwait
 277      (set : access sigset_t;
 278       sig : access Signal) return int;
 279    pragma Import (C, sigwait, "sigwait");
 280
 281    function pthread_kill
 282      (thread : pthread_t;
 283       sig    : Signal) return int;
 284    pragma Import (C, pthread_kill, "pthread_kill");
 285
 286    function pthread_sigmask
 287      (how  : int;
 288       set  : access sigset_t;
 289       oset : access sigset_t) return int;
 290    pragma Import (C, pthread_sigmask, "pthread_sigmask");
 291
 292    --------------------------
 293    -- POSIX.1c  Section 11 --
 294    --------------------------
 295
 296    function pthread_mutexattr_init
 297      (attr : access pthread_mutexattr_t) return int;
 298    pragma Import (C, pthread_mutexattr_init, "pthread_mutexattr_init");
 299
 300    function pthread_mutexattr_destroy
 301      (attr : access pthread_mutexattr_t) return int;
 302    pragma Import (C, pthread_mutexattr_destroy, "pthread_mutexattr_destroy");
 303
 304    function pthread_mutex_init
 305      (mutex : access pthread_mutex_t;
 306       attr  : access pthread_mutexattr_t) return int;
 307    pragma Import (C, pthread_mutex_init, "pthread_mutex_init");
 308
 309    function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
 310    pragma Import (C, pthread_mutex_destroy, "pthread_mutex_destroy");
 311
 312    function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
 313    pragma Import (C, pthread_mutex_lock, "pthread_mutex_lock");
 314
 315    function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
 316    pragma Import (C, pthread_mutex_unlock, "pthread_mutex_unlock");
 317
 318    function pthread_condattr_init
 319      (attr : access pthread_condattr_t) return int;
 320    pragma Import (C, pthread_condattr_init, "pthread_condattr_init");
 321
 322    function pthread_condattr_destroy
 323      (attr : access pthread_condattr_t) return int;
 324    pragma Import (C, pthread_condattr_destroy, "pthread_condattr_destroy");
 325
 326    function pthread_cond_init
 327      (cond : access pthread_cond_t;
 328       attr : access pthread_condattr_t) return int;
 329    pragma Import (C, pthread_cond_init, "pthread_cond_init");
 330
 331    function pthread_cond_destroy (cond : access pthread_cond_t) return int;
 332    pragma Import (C, pthread_cond_destroy, "pthread_cond_destroy");
 333
 334    function pthread_cond_signal (cond : access pthread_cond_t) return int;
 335    pragma Import (C, pthread_cond_signal, "pthread_cond_signal");
 336
 337    function pthread_cond_wait
 338      (cond  : access pthread_cond_t;
 339       mutex : access pthread_mutex_t) return int;
 340    pragma Import (C, pthread_cond_wait, "pthread_cond_wait");
 341
 342    function pthread_cond_timedwait
 343      (cond    : access pthread_cond_t;
 344       mutex   : access pthread_mutex_t;
 345       abstime : access timespec) return int;
 346    pragma Import (C, pthread_cond_timedwait, "pthread_cond_timedwait");
 347
 348    --------------------------
 349    -- POSIX.1c  Section 13 --
 350    --------------------------
 351
 352    PTHREAD_PRIO_NONE    : constant := 0;
 353    PTHREAD_PRIO_PROTECT : constant := 2;
 354    PTHREAD_PRIO_INHERIT : constant := 1;
 355
 356    function pthread_mutexattr_setprotocol
 357      (attr     : access pthread_mutexattr_t;
 358       protocol : int) return int;
 359    pragma Import (C, pthread_mutexattr_setprotocol);
 360
 361    function pthread_mutexattr_setprioceiling
 362      (attr     : access pthread_mutexattr_t;
 363       prioceiling : int) return int;
 364    pragma Import (C, pthread_mutexattr_setprioceiling);
 365
 366    type struct_sched_param is record
 367       sched_priority : int;
 368    end record;
 369    pragma Convention (C, struct_sched_param);
 370
 371    function pthread_setschedparam
 372      (thread : pthread_t;
 373       policy : int;
 374       param  : access struct_sched_param)
 375      return int;
 376    pragma Import (C, pthread_setschedparam, "pthread_setschedparam");
 377
 378    function pthread_attr_setscope
 379      (attr            : access pthread_attr_t;
 380       contentionscope : int) return int;
 381    pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope");
 382
 383    function pthread_attr_setinheritsched
 384      (attr         : access pthread_attr_t;
 385       inheritsched : int) return int;
 386    pragma Import
 387      (C, pthread_attr_setinheritsched, "pthread_attr_setinheritsched");
 388
 389    function pthread_attr_setschedpolicy
 390      (attr   : access pthread_attr_t;
 391       policy : int) return int;
 392    pragma Import (C, pthread_attr_setschedpolicy);
 393
 394    function pthread_attr_setschedparam
 395      (attr        : access pthread_attr_t;
 396       sched_param : access struct_sched_param)
 397      return int;
 398    pragma Import (C, pthread_attr_setschedparam, "pthread_attr_setschedparam");
 399
 400    function sched_yield return int;
 401    pragma Import (C, sched_yield, "sched_yield");
 402
 403    ---------------------------
 404    -- P1003.1c - Section 16 --
 405    ---------------------------
 406
 407    function pthread_attr_init (attributes : access pthread_attr_t) return int;
 408    pragma Import (C, pthread_attr_init, "pthread_attr_init");
 409
 410    function pthread_attr_destroy
 411      (attributes : access pthread_attr_t) return int;
 412    pragma Import (C, pthread_attr_destroy, "pthread_attr_destroy");
 413
 414    function pthread_attr_setdetachstate
 415      (attr        : access pthread_attr_t;
 416       detachstate : int) return int;
 417    pragma Import (C, pthread_attr_setdetachstate);
 418
 419    function pthread_attr_setstacksize
 420      (attr      : access pthread_attr_t;
 421       stacksize : size_t) return int;
 422    pragma Import (C, pthread_attr_setstacksize, "pthread_attr_setstacksize");
 423
 424    function pthread_create
 425      (thread        : access pthread_t;
 426       attributes    : access pthread_attr_t;
 427       start_routine : Thread_Body;
 428       arg           : System.Address) return int;
 429    pragma Import (C, pthread_create, "pthread_create");
 430
 431    procedure pthread_exit (status : System.Address);
 432    pragma Import (C, pthread_exit, "pthread_exit");
 433
 434    function pthread_self return pthread_t;
 435    pragma Import (C, pthread_self, "pthread_self");
 436
 437    --------------------------
 438    -- POSIX.1c  Section 17 --
 439    --------------------------
 440
 441    function pthread_setspecific
 442      (key   : pthread_key_t;
 443       value : System.Address) return int;
 444    pragma Import (C, pthread_setspecific, "pthread_setspecific");
 445
 446    function pthread_getspecific (key : pthread_key_t) return System.Address;
 447    pragma Import (C, pthread_getspecific, "pthread_getspecific");
 448
 449    type destructor_pointer is access procedure (arg : System.Address);
 450    pragma Convention (C, destructor_pointer);
 451
 452    function pthread_key_create
 453      (key        : access pthread_key_t;
 454       destructor : destructor_pointer) return int;
 455    pragma Import (C, pthread_key_create, "pthread_key_create");
 456
 457    -------------------
 458    -- SGI Additions --
 459    -------------------
 460
 461    --  Non portable SGI 6.5 additions to the pthread interface must be
 462    --  executed from within the context of a system scope task.
 463
 464    function pthread_setrunon_np (cpu : int) return int;
 465    pragma Import (C, pthread_setrunon_np, "pthread_setrunon_np");
 466
 467 private
 468
 469    type array_type_1 is array (Integer range 0 .. 3) of unsigned;
 470    type sigset_t is record
 471       X_X_sigbits : array_type_1;
 472    end record;
 473    pragma Convention (C, sigset_t);
 474
 475    type pid_t is new long;
 476
 477    type time_t is new long;
 478
 479    type timespec is record
 480       tv_sec  : time_t;
 481       tv_nsec : long;
 482    end record;
 483    pragma Convention (C, timespec);
 484
 485    type array_type_9 is array (Integer range 0 .. 4) of long;
 486    type pthread_attr_t is record
 487       X_X_D : array_type_9;
 488    end record;
 489    pragma Convention (C, pthread_attr_t);
 490
 491    type array_type_8 is array (Integer range 0 .. 1) of long;
 492    type pthread_condattr_t is record
 493       X_X_D : array_type_8;
 494    end record;
 495    pragma Convention (C, pthread_condattr_t);
 496
 497    type array_type_7 is array (Integer range 0 .. 1) of long;
 498    type pthread_mutexattr_t is record
 499       X_X_D : array_type_7;
 500    end record;
 501    pragma Convention (C, pthread_mutexattr_t);
 502
 503    type pthread_t is new unsigned;
 504
 505    type array_type_10 is array (Integer range 0 .. 7) of long;
 506    type pthread_mutex_t is record
 507       X_X_D : array_type_10;
 508    end record;
 509    pragma Convention (C, pthread_mutex_t);
 510
 511    type array_type_11 is array (Integer range 0 .. 7) of long;
 512    type pthread_cond_t is record
 513       X_X_D : array_type_11;
 514    end record;
 515    pragma Convention (C, pthread_cond_t);
 516
 517    type pthread_key_t is new int;
 518
 519 end System.OS_Interface;