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) 1995-2008, Free Software Foundation, Inc.         --
  11 --                                                                          --
  12 -- GNARL 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 2,  or (at your option) any later ver- --
  15 -- sion. GNARL 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.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNARL; see file COPYING.  If not, write --
  20 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  21 -- Boston, MA 02110-1301, USA.                                              --
  22 --                                                                          --
  23 -- As a special exception,  if other files  instantiate  generics from this --
  24 -- unit, or you link  this unit with other files  to produce an executable, --
  25 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  26 -- covered  by the  GNU  General  Public  License.  This exception does not --
  27 -- however invalidate  any other reasons why  the executable file  might be --
  28 -- covered by the  GNU Public License.                                      --
  29 --                                                                          --
  30 -- GNARL was developed by the GNARL team at Florida State University.       --
  31 -- Extensive contributions were provided by Ada Core Technologies, Inc.     --
  32 --                                                                          --
  33 ------------------------------------------------------------------------------
  34
  35 --  This is the SGI Pthreads version of this package
  36
  37 --  This package encapsulates all direct interfaces to OS services that are
  38 --  needed by the tasking run-time (libgnarl).
  39
  40 --  PLEASE DO NOT add any with-clauses to this package or remove the pragma
  41 --  Preelaborate. This package is designed to be a bottom-level (leaf) package.
  42
  43 with Ada.Unchecked_Conversion;
  44
  45 with Interfaces.C;
  46
  47 package System.OS_Interface is
  48
  49    pragma Preelaborate;
  50
  51    pragma Linker_Options ("-lpthread");
  52
  53    subtype int            is Interfaces.C.int;
  54    subtype short          is Interfaces.C.short;
  55    subtype long           is Interfaces.C.long;
  56    subtype unsigned       is Interfaces.C.unsigned;
  57    subtype unsigned_short is Interfaces.C.unsigned_short;
  58    subtype unsigned_long  is Interfaces.C.unsigned_long;
  59    subtype unsigned_char  is Interfaces.C.unsigned_char;
  60    subtype plain_char     is Interfaces.C.plain_char;
  61    subtype size_t         is Interfaces.C.size_t;
  62
  63    -----------
  64    -- Errno --
  65    -----------
  66
  67    function errno return int;
  68    pragma Import (C, errno, "__get_errno");
  69
  70    EINTR     : constant := 4;   --  interrupted system call
  71    EAGAIN    : constant := 11;  --  No more processes
  72    ENOMEM    : constant := 12;  --  Not enough core
  73    EINVAL    : constant := 22;  --  Invalid argument
  74    ETIMEDOUT : constant := 145; --  Connection timed out
  75
  76    -------------
  77    -- Signals --
  78    -------------
  79
  80    Max_Interrupt : constant := 64;
  81    type Signal is new int range 0 .. Max_Interrupt;
  82    for Signal'Size use int'Size;
  83
  84    SIGHUP     : constant := 1; --  hangup
  85    SIGINT     : constant := 2; --  interrupt (rubout)
  86    SIGQUIT    : constant := 3; --  quit (ASCD FS)
  87    SIGILL     : constant := 4; --  illegal instruction (not reset)
  88    SIGTRAP    : constant := 5; --  trace trap (not reset)
  89    SIGIOT     : constant := 6; --  IOT instruction
  90    SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the future
  91    SIGEMT     : constant := 7; --  EMT instruction
  92    SIGFPE     : constant := 8; --  floating point exception
  93    SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
  94    SIGBUS     : constant := 10; --  bus error
  95    SIGSEGV    : constant := 11; --  segmentation violation
  96    SIGSYS     : constant := 12; --  bad argument to system call
  97    SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
  98    SIGALRM    : constant := 14; --  alarm clock
  99    SIGTERM    : constant := 15; --  software termination signal from kill
 100    SIGUSR1    : constant := 16; --  user defined signal 1
 101    SIGUSR2    : constant := 17; --  user defined signal 2
 102    SIGCLD     : constant := 18; --  alias for SIGCHLD
 103    SIGCHLD    : constant := 18; --  child status change
 104    SIGPWR     : constant := 19; --  power-fail restart
 105    SIGWINCH   : constant := 20; --  window size change
 106    SIGURG     : constant := 21; --  urgent condition on IO channel
 107    SIGPOLL    : constant := 22; --  pollable event occurred
 108    SIGIO      : constant := 22; --  I/O possible (Solaris SIGPOLL alias)
 109    SIGSTOP    : constant := 23; --  stop (cannot be caught or ignored)
 110    SIGTSTP    : constant := 24; --  user stop requested from tty
 111    SIGCONT    : constant := 25; --  stopped process has been continued
 112    SIGTTIN    : constant := 26; --  background tty read attempted
 113    SIGTTOU    : constant := 27; --  background tty write attempted
 114    SIGVTALRM  : constant := 28; --  virtual timer expired
 115    SIGPROF    : constant := 29; --  profiling timer expired
 116    SIGXCPU    : constant := 30; --  CPU time limit exceeded
 117    SIGXFSZ    : constant := 31; --  filesize limit exceeded
 118    SIGK32     : constant := 32; --  reserved for kernel (IRIX)
 119    SIGCKPT    : constant := 33; --  Checkpoint warning
 120    SIGRESTART : constant := 34; --  Restart warning
 121    SIGUME     : constant := 35; --  Uncorrectable memory error
 122    --  Signals defined for Posix 1003.1c
 123    SIGPTINTR    : constant := 47;
 124    SIGPTRESCHED : constant := 48;
 125    --  Posix 1003.1b signals
 126    SIGRTMIN   : constant := 49; --  Posix 1003.1b signals
 127    SIGRTMAX   : constant := 64; --  Posix 1003.1b signals
 128
 129    type sigset_t is private;
 130
 131    function sigaddset (set : access sigset_t; sig : Signal) return int;
 132    pragma Import (C, sigaddset, "sigaddset");
 133
 134    function sigdelset (set : access sigset_t; sig : Signal) return int;
 135    pragma Import (C, sigdelset, "sigdelset");
 136
 137    function sigfillset (set : access sigset_t) return int;
 138    pragma Import (C, sigfillset, "sigfillset");
 139
 140    function sigismember (set : access sigset_t; sig : Signal) return int;
 141    pragma Import (C, sigismember, "sigismember");
 142
 143    function sigemptyset (set : access sigset_t) return int;
 144    pragma Import (C, sigemptyset, "sigemptyset");
 145
 146    type array_type_2 is array (Integer range 0 .. 1) of int;
 147    type struct_sigaction is record
 148       sa_flags     : int;
 149       sa_handler   : System.Address;
 150       sa_mask      : sigset_t;
 151       sa_resv      : array_type_2;
 152    end record;
 153    pragma Convention (C, struct_sigaction);
 154
 155    type struct_sigaction_ptr is access all struct_sigaction;
 156
 157    SIG_BLOCK   : constant := 1;
 158    SIG_UNBLOCK : constant := 2;
 159    SIG_SETMASK : constant := 3;
 160
 161    SIG_DFL : constant := 0;
 162    SIG_IGN : constant := 1;
 163
 164    function sigaction
 165      (sig  : Signal;
 166       act  : struct_sigaction_ptr;
 167       oact : struct_sigaction_ptr := null) return int;
 168    pragma Import (C, sigaction, "sigaction");
 169
 170    ----------
 171    -- Time --
 172    ----------
 173
 174    type timespec is private;
 175    type timespec_ptr is access all timespec;
 176
 177    type clockid_t is private;
 178
 179    CLOCK_REALTIME  : constant clockid_t;
 180    CLOCK_SGI_FAST  : constant clockid_t;
 181    CLOCK_SGI_CYCLE : constant clockid_t;
 182
 183    SGI_CYCLECNTR_SIZE : constant := 165;
 184
 185    function syssgi (request : Interfaces.C.int) return Interfaces.C.ptrdiff_t;
 186    pragma Import (C, syssgi, "syssgi");
 187
 188    function clock_gettime
 189      (clock_id : clockid_t;
 190       tp       : access timespec) return int;
 191    pragma Import (C, clock_gettime, "clock_gettime");
 192
 193    function clock_getres
 194      (clock_id : clockid_t;
 195       tp       : access timespec) return int;
 196    pragma Import (C, clock_getres, "clock_getres");
 197
 198    function To_Duration (TS : timespec) return Duration;
 199    pragma Inline (To_Duration);
 200
 201    function To_Timespec (D : Duration) return timespec;
 202    pragma Inline (To_Timespec);
 203
 204    -------------------------
 205    -- Priority Scheduling --
 206    -------------------------
 207
 208    SCHED_FIFO  : constant := 1;
 209    SCHED_RR    : constant := 2;
 210    SCHED_TS    : constant := 3;
 211    SCHED_OTHER : constant := 3;
 212    SCHED_NP    : constant := 4;
 213
 214    function sched_get_priority_min (Policy : int) return int;
 215    pragma Import (C, sched_get_priority_min, "sched_get_priority_min");
 216
 217    function sched_get_priority_max (Policy : int) return int;
 218    pragma Import (C, sched_get_priority_max, "sched_get_priority_max");
 219
 220    -------------
 221    -- Process --
 222    -------------
 223
 224    type pid_t is private;
 225
 226    function kill (pid : pid_t; sig : Signal) return int;
 227    pragma Import (C, kill, "kill");
 228
 229    function getpid return pid_t;
 230    pragma Import (C, getpid, "getpid");
 231
 232    -------------
 233    -- Threads --
 234    -------------
 235
 236    type Thread_Body is access
 237      function (arg : System.Address) return System.Address;
 238    pragma Convention (C, Thread_Body);
 239
 240    function Thread_Body_Access is new
 241      Ada.Unchecked_Conversion (System.Address, Thread_Body);
 242
 243    type pthread_t           is private;
 244    subtype Thread_Id        is pthread_t;
 245
 246    type pthread_mutex_t     is limited private;
 247    type pthread_cond_t      is limited private;
 248    type pthread_attr_t      is limited private;
 249    type pthread_mutexattr_t is limited private;
 250    type pthread_condattr_t  is limited private;
 251    type pthread_key_t       is private;
 252
 253    PTHREAD_CREATE_DETACHED : constant := 1;
 254
 255    -----------
 256    -- Stack --
 257    -----------
 258
 259    Alternate_Stack_Size : constant := 0;
 260    --  No alternate signal stack is used on this platform
 261
 262    ---------------------------------------
 263    -- Nonstandard Thread Initialization --
 264    ---------------------------------------
 265
 266    procedure pthread_init;
 267    pragma Inline (pthread_init);
 268    --  This is a dummy procedure to share some GNULLI files
 269
 270    -------------------------
 271    -- POSIX.1c  Section 3 --
 272    -------------------------
 273
 274    function sigwait
 275      (set : access sigset_t;
 276       sig : access Signal) return int;
 277    pragma Import (C, sigwait, "sigwait");
 278
 279    function pthread_kill
 280      (thread : pthread_t;
 281       sig    : Signal) return int;
 282    pragma Import (C, pthread_kill, "pthread_kill");
 283
 284    function pthread_sigmask
 285      (how  : int;
 286       set  : access sigset_t;
 287       oset : access sigset_t) return int;
 288    pragma Import (C, pthread_sigmask, "pthread_sigmask");
 289
 290    --------------------------
 291    -- POSIX.1c  Section 11 --
 292    --------------------------
 293
 294    function pthread_mutexattr_init
 295      (attr : access pthread_mutexattr_t) return int;
 296    pragma Import (C, pthread_mutexattr_init, "pthread_mutexattr_init");
 297
 298    function pthread_mutexattr_destroy
 299      (attr : access pthread_mutexattr_t) return int;
 300    pragma Import (C, pthread_mutexattr_destroy, "pthread_mutexattr_destroy");
 301
 302    function pthread_mutex_init
 303      (mutex : access pthread_mutex_t;
 304       attr  : access pthread_mutexattr_t) return int;
 305    pragma Import (C, pthread_mutex_init, "pthread_mutex_init");
 306
 307    function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
 308    pragma Import (C, pthread_mutex_destroy, "pthread_mutex_destroy");
 309
 310    function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
 311    pragma Import (C, pthread_mutex_lock, "pthread_mutex_lock");
 312
 313    function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
 314    pragma Import (C, pthread_mutex_unlock, "pthread_mutex_unlock");
 315
 316    function pthread_condattr_init
 317      (attr : access pthread_condattr_t) return int;
 318    pragma Import (C, pthread_condattr_init, "pthread_condattr_init");
 319
 320    function pthread_condattr_destroy
 321      (attr : access pthread_condattr_t) return int;
 322    pragma Import (C, pthread_condattr_destroy, "pthread_condattr_destroy");
 323
 324    function pthread_cond_init
 325      (cond : access pthread_cond_t;
 326       attr : access pthread_condattr_t) return int;
 327    pragma Import (C, pthread_cond_init, "pthread_cond_init");
 328
 329    function pthread_cond_destroy (cond : access pthread_cond_t) return int;
 330    pragma Import (C, pthread_cond_destroy, "pthread_cond_destroy");
 331
 332    function pthread_cond_signal (cond : access pthread_cond_t) return int;
 333    pragma Import (C, pthread_cond_signal, "pthread_cond_signal");
 334
 335    function pthread_cond_wait
 336      (cond  : access pthread_cond_t;
 337       mutex : access pthread_mutex_t) return int;
 338    pragma Import (C, pthread_cond_wait, "pthread_cond_wait");
 339
 340    function pthread_cond_timedwait
 341      (cond    : access pthread_cond_t;
 342       mutex   : access pthread_mutex_t;
 343       abstime : access timespec) return int;
 344    pragma Import (C, pthread_cond_timedwait, "pthread_cond_timedwait");
 345
 346    --------------------------
 347    -- POSIX.1c  Section 13 --
 348    --------------------------
 349
 350    PTHREAD_PRIO_NONE    : constant := 0;
 351    PTHREAD_PRIO_PROTECT : constant := 2;
 352    PTHREAD_PRIO_INHERIT : constant := 1;
 353
 354    function pthread_mutexattr_setprotocol
 355      (attr     : access pthread_mutexattr_t;
 356       protocol : int) return int;
 357    pragma Import (C, pthread_mutexattr_setprotocol);
 358
 359    function pthread_mutexattr_setprioceiling
 360      (attr     : access pthread_mutexattr_t;
 361       prioceiling : int) return int;
 362    pragma Import (C, pthread_mutexattr_setprioceiling);
 363
 364    type struct_sched_param is record
 365       sched_priority : int;
 366    end record;
 367    pragma Convention (C, struct_sched_param);
 368
 369    function pthread_setschedparam
 370      (thread : pthread_t;
 371       policy : int;
 372       param  : access struct_sched_param)
 373      return int;
 374    pragma Import (C, pthread_setschedparam, "pthread_setschedparam");
 375
 376    function pthread_attr_setscope
 377      (attr            : access pthread_attr_t;
 378       contentionscope : int) return int;
 379    pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope");
 380
 381    function pthread_attr_setinheritsched
 382      (attr         : access pthread_attr_t;
 383       inheritsched : int) return int;
 384    pragma Import
 385      (C, pthread_attr_setinheritsched, "pthread_attr_setinheritsched");
 386
 387    function pthread_attr_setschedpolicy
 388      (attr   : access pthread_attr_t;
 389       policy : int) return int;
 390    pragma Import (C, pthread_attr_setschedpolicy);
 391
 392    function pthread_attr_setschedparam
 393      (attr        : access pthread_attr_t;
 394       sched_param : access struct_sched_param)
 395      return int;
 396    pragma Import (C, pthread_attr_setschedparam, "pthread_attr_setschedparam");
 397
 398    function sched_yield return int;
 399    pragma Import (C, sched_yield, "sched_yield");
 400
 401    ---------------------------
 402    -- P1003.1c - Section 16 --
 403    ---------------------------
 404
 405    function pthread_attr_init (attributes : access pthread_attr_t) return int;
 406    pragma Import (C, pthread_attr_init, "pthread_attr_init");
 407
 408    function pthread_attr_destroy
 409      (attributes : access pthread_attr_t) return int;
 410    pragma Import (C, pthread_attr_destroy, "pthread_attr_destroy");
 411
 412    function pthread_attr_setdetachstate
 413      (attr        : access pthread_attr_t;
 414       detachstate : int) return int;
 415    pragma Import (C, pthread_attr_setdetachstate);
 416
 417    function pthread_attr_setstacksize
 418      (attr      : access pthread_attr_t;
 419       stacksize : size_t) return int;
 420    pragma Import (C, pthread_attr_setstacksize, "pthread_attr_setstacksize");
 421
 422    function pthread_create
 423      (thread        : access pthread_t;
 424       attributes    : access pthread_attr_t;
 425       start_routine : Thread_Body;
 426       arg           : System.Address) return int;
 427    pragma Import (C, pthread_create, "pthread_create");
 428
 429    procedure pthread_exit (status : System.Address);
 430    pragma Import (C, pthread_exit, "pthread_exit");
 431
 432    function pthread_self return pthread_t;
 433    pragma Import (C, pthread_self, "pthread_self");
 434
 435    --------------------------
 436    -- POSIX.1c  Section 17 --
 437    --------------------------
 438
 439    function pthread_setspecific
 440      (key   : pthread_key_t;
 441       value : System.Address) return int;
 442    pragma Import (C, pthread_setspecific, "pthread_setspecific");
 443
 444    function pthread_getspecific (key : pthread_key_t) return System.Address;
 445    pragma Import (C, pthread_getspecific, "pthread_getspecific");
 446
 447    type destructor_pointer is access procedure (arg : System.Address);
 448    pragma Convention (C, destructor_pointer);
 449
 450    function pthread_key_create
 451      (key        : access pthread_key_t;
 452       destructor : destructor_pointer) return int;
 453    pragma Import (C, pthread_key_create, "pthread_key_create");
 454
 455    -------------------
 456    -- SGI Additions --
 457    -------------------
 458
 459    --  Non portable SGI 6.5 additions to the pthread interface must be
 460    --  executed from within the context of a system scope task.
 461
 462    function pthread_setrunon_np (cpu : int) return int;
 463    pragma Import (C, pthread_setrunon_np, "pthread_setrunon_np");
 464
 465 private
 466
 467    type array_type_1 is array (Integer range 0 .. 3) of unsigned;
 468    type sigset_t is record
 469       X_X_sigbits : array_type_1;
 470    end record;
 471    pragma Convention (C, sigset_t);
 472
 473    type pid_t is new long;
 474
 475    type time_t is new long;
 476
 477    type timespec is record
 478       tv_sec  : time_t;
 479       tv_nsec : long;
 480    end record;
 481    pragma Convention (C, timespec);
 482
 483    type clockid_t is new int;
 484    CLOCK_REALTIME  : constant clockid_t := 1;
 485    CLOCK_SGI_CYCLE : constant clockid_t := 2;
 486    CLOCK_SGI_FAST  : constant clockid_t := 3;
 487
 488    type array_type_9 is array (Integer range 0 .. 4) of long;
 489    type pthread_attr_t is record
 490       X_X_D : array_type_9;
 491    end record;
 492    pragma Convention (C, pthread_attr_t);
 493
 494    type array_type_8 is array (Integer range 0 .. 1) of long;
 495    type pthread_condattr_t is record
 496       X_X_D : array_type_8;
 497    end record;
 498    pragma Convention (C, pthread_condattr_t);
 499
 500    type array_type_7 is array (Integer range 0 .. 1) of long;
 501    type pthread_mutexattr_t is record
 502       X_X_D : array_type_7;
 503    end record;
 504    pragma Convention (C, pthread_mutexattr_t);
 505
 506    type pthread_t is new unsigned;
 507
 508    type array_type_10 is array (Integer range 0 .. 7) of long;
 509    type pthread_mutex_t is record
 510       X_X_D : array_type_10;
 511    end record;
 512    pragma Convention (C, pthread_mutex_t);
 513
 514    type array_type_11 is array (Integer range 0 .. 7) of long;
 515    type pthread_cond_t is record
 516       X_X_D : array_type_11;
 517    end record;
 518    pragma Convention (C, pthread_cond_t);
 519
 520    type pthread_key_t is new int;
 521
 522 end System.OS_Interface;