gcc/ada/5vosinte.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                GNU ADA 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) 1991-2002 Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNARL is free software; you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNARL; see file COPYING.  If not, write --
  19 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  20 -- MA 02111-1307, USA.                                                      --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNARL was developed by the GNARL team at Florida State University.       --
  30 -- Extensive contributions were provided by Ada Core Technologies, Inc.     --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  This is a OpenVMS/Alpha version of this package.
  35
  36 --  This package encapsulates all direct interfaces to OS services
  37 --  that are needed by children of System.
  38
  39 --  PLEASE DO NOT add any with-clauses to this package
  40 --  or remove the pragma Elaborate_Body.
  41 --  It is designed to be a bottom-level (leaf) package.
  42
  43 with Interfaces.C;
  44 package System.OS_Interface is
  45    pragma Preelaborate;
  46
  47    pragma Linker_Options ("--for-linker=sys$library:pthread$rtl.exe");
  48    --  Link in the DEC threads library.
  49
  50    --  pragma Linker_Options ("--for-linker=/threads_enable");
  51    --  Enable upcalls and multiple kernel threads.
  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    -- Signals (Interrupt IDs) --
  65    -----------------------------
  66
  67    --  Type signal has an arbitrary limit of 31
  68
  69    Max_Interrupt : constant := 31;
  70    type Signal is new unsigned range 0 .. Max_Interrupt;
  71    for Signal'Size use unsigned'Size;
  72
  73    type sigset_t is array (Signal) of Boolean;
  74    pragma Pack (sigset_t);
  75
  76    --  Interrupt_Number_Type
  77    --  Unsigned long integer denoting the number of an interrupt
  78
  79    subtype Interrupt_Number_Type is unsigned_long;
  80
  81    --  OpenVMS system services return values of type Cond_Value_Type.
  82
  83    subtype Cond_Value_Type is unsigned_long;
  84    subtype Short_Cond_Value_Type is unsigned_short;
  85
  86    type IO_Status_Block_Type is record
  87       Status   : Short_Cond_Value_Type;
  88       Count    : unsigned_short;
  89       Dev_Info : unsigned_long;
  90    end record;
  91
  92    type AST_Handler is access procedure (Param : Address);
  93    No_AST_Handler : constant AST_Handler := null;
  94
  95    CMB_M_READONLY  : constant := 16#00000001#;
  96    CMB_M_WRITEONLY : constant := 16#00000002#;
  97    AGN_M_READONLY  : constant := 16#00000001#;
  98    AGN_M_WRITEONLY : constant := 16#00000002#;
  99
 100    IO_WRITEVBLK : constant := 48;  --  WRITE VIRTUAL BLOCK
 101    IO_READVBLK  : constant := 49;  --  READ VIRTUAL BLOCK
 102
 103    ----------------
 104    -- Sys_Assign --
 105    ----------------
 106    --
 107    --  Assign I/O Channel
 108    --
 109    --  Status = returned status
 110    --  Devnam = address  of  device  name  or  logical  name   string
 111    --               descriptor
 112    --  Chan   = address of word to receive channel number assigned
 113    --  Acmode = access mode associated with channel
 114    --  Mbxnam = address of mailbox logical name string descriptor, if
 115    --               mailbox associated with device
 116    --  Flags  = optional channel flags longword for specifying options
 117    --           for the $ASSIGN operation
 118    --
 119
 120    procedure Sys_Assign
 121      (Status : out Cond_Value_Type;
 122       Devnam : in String;
 123       Chan   : out unsigned_short;
 124       Acmode : in unsigned_short := 0;
 125       Mbxnam : in String := String'Null_Parameter;
 126       Flags  : in unsigned_long := 0);
 127    pragma Interface (External, Sys_Assign);
 128    pragma Import_Valued_Procedure
 129      (Sys_Assign, "SYS$ASSIGN",
 130       (Cond_Value_Type, String,         unsigned_short,
 131        unsigned_short,  String,         unsigned_long),
 132       (Value,           Descriptor (s), Reference,
 133        Value,           Descriptor (s), Value),
 134       Flags);
 135
 136    ----------------
 137    -- Sys_Cantim --
 138    ----------------
 139    --
 140    --  Cancel Timer
 141    --
 142    --  Status  = returned status
 143    --  Reqidt  = ID of timer to be cancelled
 144    --  Acmode  = Access mode
 145    --
 146    procedure Sys_Cantim
 147      (Status : out Cond_Value_Type;
 148       Reqidt : in Address;
 149       Acmode : in unsigned);
 150    pragma Interface (External, Sys_Cantim);
 151    pragma Import_Valued_Procedure
 152      (Sys_Cantim, "SYS$CANTIM",
 153       (Cond_Value_Type, Address, unsigned),
 154       (Value,           Value,   Value));
 155
 156    ----------------
 157    -- Sys_Crembx --
 158    ----------------
 159    --
 160    --  Create mailbox
 161    --
 162    --     Status  = returned status
 163    --     Prmflg  = permanent flag
 164    --     Chan    = channel
 165    --     Maxmsg  = maximum message
 166    --     Bufquo  = buufer quote
 167    --     Promsk  = protection mast
 168    --     Acmode  = access mode
 169    --     Lognam  = logical name
 170    --     Flags   = flags
 171    --
 172    procedure Sys_Crembx
 173      (Status : out Cond_Value_Type;
 174       Prmflg : in Boolean;
 175       Chan   : out unsigned_short;
 176       Maxmsg : in unsigned_long := 0;
 177       Bufquo : in unsigned_long := 0;
 178       Promsk : in unsigned_short := 0;
 179       Acmode : in unsigned_short := 0;
 180       Lognam : in String;
 181       Flags  : in unsigned_long := 0);
 182    pragma Interface (External, Sys_Crembx);
 183    pragma Import_Valued_Procedure
 184      (Sys_Crembx, "SYS$CREMBX",
 185       (Cond_Value_Type, Boolean,        unsigned_short,
 186        unsigned_long,   unsigned_long,  unsigned_short,
 187        unsigned_short,  String,         unsigned_long),
 188       (Value,           Value,          Reference,
 189        Value,           Value,          Value,
 190        Value,           Descriptor (s), Value));
 191
 192    -------------
 193    -- Sys_QIO --
 194    -------------
 195    --
 196    --    Queue I/O
 197    --
 198    --     Status = Returned status of call
 199    --     EFN    = event flag to be set when I/O completes
 200    --     Chan   = channel
 201    --     Func   = function
 202    --     Iosb   = I/O status block
 203    --     Astadr = system trap to be generated when I/O completes
 204    --     Astprm = AST parameter
 205    --     P1-6   = optional parameters
 206
 207    procedure Sys_QIO
 208      (Status : out Cond_Value_Type;
 209       EFN    : in unsigned_long := 0;
 210       Chan   : in unsigned_short;
 211       Func   : in unsigned_long := 0;
 212       Iosb   : out IO_Status_Block_Type;
 213       Astadr : in AST_Handler := No_AST_Handler;
 214       Astprm : in Address := Null_Address;
 215       P1     : in  unsigned_long := 0;
 216       P2     : in  unsigned_long := 0;
 217       P3     : in  unsigned_long := 0;
 218       P4     : in  unsigned_long := 0;
 219       P5     : in  unsigned_long := 0;
 220       P6     : in  unsigned_long := 0);
 221
 222    procedure Sys_QIO
 223      (Status : out Cond_Value_Type;
 224       EFN    : in unsigned_long := 0;
 225       Chan   : in unsigned_short;
 226       Func   : in unsigned_long := 0;
 227       Iosb   : in Address := Null_Address;
 228       Astadr : in AST_Handler := No_AST_Handler;
 229       Astprm : in Address := Null_Address;
 230       P1     : in  unsigned_long := 0;
 231       P2     : in  unsigned_long := 0;
 232       P3     : in  unsigned_long := 0;
 233       P4     : in  unsigned_long := 0;
 234       P5     : in  unsigned_long := 0;
 235       P6     : in  unsigned_long := 0);
 236
 237    pragma Interface (External, Sys_QIO);
 238    pragma Import_Valued_Procedure
 239      (Sys_QIO, "SYS$QIO",
 240       (Cond_Value_Type,      unsigned_long, unsigned_short, unsigned_long,
 241        IO_Status_Block_Type, AST_Handler,   Address,
 242        unsigned_long,        unsigned_long, unsigned_long,
 243        unsigned_long,        unsigned_long, unsigned_long),
 244       (Value,                Value,         Value,          Value,
 245        Reference,            Value,         Value,
 246        Value,                Value,         Value,
 247        Value,                Value,         Value));
 248
 249    pragma Import_Valued_Procedure
 250      (Sys_QIO, "SYS$QIO",
 251       (Cond_Value_Type, unsigned_long, unsigned_short, unsigned_long,
 252        Address,         AST_Handler,   Address,
 253        unsigned_long,   unsigned_long, unsigned_long,
 254        unsigned_long,   unsigned_long, unsigned_long),
 255       (Value,           Value,         Value,          Value,
 256        Value,           Value,         Value,
 257        Value,           Value,         Value,
 258        Value,           Value,         Value));
 259
 260    ----------------
 261    -- Sys_Setimr --
 262    ----------------
 263    --
 264    --    Set Timer
 265    --
 266    --     Status = Returned status of call
 267    --     EFN    = event flag to be set when timer expires
 268    --     Tim    = expiration time
 269    --     AST    = system trap to be generated when timer expires
 270    --     Redidt = returned ID of timer (e.g. to cancel timer)
 271    --     Flags  = flags
 272    --
 273    procedure Sys_Setimr
 274      (Status : out Cond_Value_Type;
 275       EFN    : in unsigned_long;
 276       Tim    : in Long_Integer;
 277       AST    : in AST_Handler;
 278       Reqidt : in Address;
 279       Flags  : in unsigned_long);
 280    pragma Interface (External, Sys_Setimr);
 281    pragma Import_Valued_Procedure
 282      (Sys_Setimr, "SYS$SETIMR",
 283       (Cond_Value_Type, unsigned_long,     Long_Integer,
 284        AST_Handler,     Address,           unsigned_long),
 285       (Value,           Value,             Reference,
 286        Value,           Value,             Value));
 287
 288    Interrupt_ID_0   : constant  := 0;
 289    Interrupt_ID_1   : constant  := 1;
 290    Interrupt_ID_2   : constant  := 2;
 291    Interrupt_ID_3   : constant  := 3;
 292    Interrupt_ID_4   : constant  := 4;
 293    Interrupt_ID_5   : constant  := 5;
 294    Interrupt_ID_6   : constant  := 6;
 295    Interrupt_ID_7   : constant  := 7;
 296    Interrupt_ID_8   : constant  := 8;
 297    Interrupt_ID_9   : constant  := 9;
 298    Interrupt_ID_10  : constant  := 10;
 299    Interrupt_ID_11  : constant  := 11;
 300    Interrupt_ID_12  : constant  := 12;
 301    Interrupt_ID_13  : constant  := 13;
 302    Interrupt_ID_14  : constant  := 14;
 303    Interrupt_ID_15  : constant  := 15;
 304    Interrupt_ID_16  : constant  := 16;
 305    Interrupt_ID_17  : constant  := 17;
 306    Interrupt_ID_18  : constant  := 18;
 307    Interrupt_ID_19  : constant  := 19;
 308    Interrupt_ID_20  : constant  := 20;
 309    Interrupt_ID_21  : constant  := 21;
 310    Interrupt_ID_22  : constant  := 22;
 311    Interrupt_ID_23  : constant  := 23;
 312    Interrupt_ID_24  : constant  := 24;
 313    Interrupt_ID_25  : constant  := 25;
 314    Interrupt_ID_26  : constant  := 26;
 315    Interrupt_ID_27  : constant  := 27;
 316    Interrupt_ID_28  : constant  := 28;
 317    Interrupt_ID_29  : constant  := 29;
 318    Interrupt_ID_30  : constant  := 30;
 319    Interrupt_ID_31  : constant  := 31;
 320
 321    -----------
 322    -- Errno --
 323    -----------
 324
 325    function errno return int;
 326    pragma Import (C, errno, "__get_errno");
 327
 328    EINTR  : constant := 4;   --  Interrupted system call
 329    EAGAIN : constant := 11;  --  No more processes
 330    ENOMEM : constant := 12;  --  Not enough core
 331
 332    -------------------------
 333    -- Priority Scheduling --
 334    -------------------------
 335
 336    SCHED_FIFO  : constant := 1;
 337    SCHED_RR    : constant := 2;
 338    SCHED_OTHER : constant := 3;
 339    SCHED_BG    : constant := 4;
 340    SCHED_LFI   : constant := 5;
 341    SCHED_LRR   : constant := 6;
 342
 343    -------------
 344    -- Process --
 345    -------------
 346
 347    type pid_t is private;
 348
 349    function kill (pid : pid_t; sig : Signal) return int;
 350    pragma Import (C, kill);
 351
 352    function getpid return pid_t;
 353    pragma Import (C, getpid);
 354
 355    -------------
 356    -- Threads --
 357    -------------
 358
 359    type Thread_Body is access
 360      function (arg : System.Address) return System.Address;
 361    type pthread_t           is private;
 362    subtype Thread_Id        is pthread_t;
 363
 364    type pthread_mutex_t     is limited private;
 365    type pthread_cond_t      is limited private;
 366    type pthread_attr_t      is limited private;
 367    type pthread_mutexattr_t is limited private;
 368    type pthread_condattr_t  is limited private;
 369    type pthread_key_t       is private;
 370
 371    PTHREAD_CREATE_JOINABLE     : constant := 0;
 372    PTHREAD_CREATE_DETACHED     : constant := 1;
 373
 374    PTHREAD_CANCEL_DISABLE      : constant := 0;
 375    PTHREAD_CANCEL_ENABLE       : constant := 1;
 376
 377    PTHREAD_CANCEL_DEFERRED     : constant := 0;
 378    PTHREAD_CANCEL_ASYNCHRONOUS : constant := 1;
 379
 380    --  Don't use ERRORCHECK mutexes, they don't work when a thread is not
 381    --  the owner.  AST's, at least, unlock others threads mutexes. Even
 382    --  if the error is ignored, they don't work.
 383    PTHREAD_MUTEX_NORMAL_NP     : constant := 0;
 384    PTHREAD_MUTEX_RECURSIVE_NP  : constant := 1;
 385    PTHREAD_MUTEX_ERRORCHECK_NP : constant := 2;
 386
 387    PTHREAD_INHERIT_SCHED       : constant := 0;
 388    PTHREAD_EXPLICIT_SCHED      : constant := 1;
 389
 390    function pthread_cancel (thread : pthread_t) return int;
 391    pragma Import (C, pthread_cancel, "PTHREAD_CANCEL");
 392
 393    procedure pthread_testcancel;
 394    pragma Import (C, pthread_testcancel, "PTHREAD_TESTCANCEL");
 395
 396    function pthread_setcancelstate
 397      (newstate : int; oldstate : access int) return int;
 398    pragma Import (C, pthread_setcancelstate, "PTHREAD_SETCANCELSTATE");
 399
 400    function pthread_setcanceltype
 401      (newtype : int; oldtype : access int) return int;
 402    pragma Import (C, pthread_setcanceltype, "PTHREAD_SETCANCELTYPE");
 403
 404    ---------------------------
 405    --  POSIX.1c  Section 3  --
 406    ---------------------------
 407
 408    function pthread_lock_global_np return int;
 409    pragma Import (C, pthread_lock_global_np, "PTHREAD_LOCK_GLOBAL_NP");
 410
 411    function pthread_unlock_global_np return int;
 412    pragma Import (C, pthread_unlock_global_np, "PTHREAD_UNLOCK_GLOBAL_NP");
 413
 414    ----------------------------
 415    --  POSIX.1c  Section 11  --
 416    ----------------------------
 417
 418    function pthread_mutexattr_init
 419      (attr : access pthread_mutexattr_t) return int;
 420    pragma Import (C, pthread_mutexattr_init, "PTHREAD_MUTEXATTR_INIT");
 421
 422    function pthread_mutexattr_destroy
 423      (attr : access pthread_mutexattr_t) return int;
 424    pragma Import (C, pthread_mutexattr_destroy, "PTHREAD_MUTEXATTR_DESTROY");
 425
 426    function pthread_mutexattr_settype_np
 427      (attr      : access pthread_mutexattr_t;
 428       mutextype : int) return int;
 429    pragma Import (C, pthread_mutexattr_settype_np,
 430                      "PTHREAD_MUTEXATTR_SETTYPE_NP");
 431
 432    function pthread_mutex_init
 433      (mutex : access pthread_mutex_t;
 434       attr  : access pthread_mutexattr_t) return int;
 435    pragma Import (C, pthread_mutex_init, "PTHREAD_MUTEX_INIT");
 436
 437    function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
 438    pragma Import (C, pthread_mutex_destroy, "PTHREAD_MUTEX_DESTROY");
 439
 440    function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
 441    pragma Import (C, pthread_mutex_lock, "PTHREAD_MUTEX_LOCK");
 442
 443    function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
 444    pragma Import (C, pthread_mutex_unlock, "PTHREAD_MUTEX_UNLOCK");
 445
 446    function pthread_condattr_init
 447      (attr : access pthread_condattr_t) return int;
 448    pragma Import (C, pthread_condattr_init, "PTHREAD_CONDATTR_INIT");
 449
 450    function pthread_condattr_destroy
 451      (attr : access pthread_condattr_t) return int;
 452    pragma Import (C, pthread_condattr_destroy, "PTHREAD_CONDATTR_DESTROY");
 453
 454    function pthread_cond_init
 455      (cond : access pthread_cond_t;
 456       attr : access pthread_condattr_t) return int;
 457    pragma Import (C, pthread_cond_init, "PTHREAD_COND_INIT");
 458
 459    function pthread_cond_destroy (cond : access pthread_cond_t) return int;
 460    pragma Import (C, pthread_cond_destroy, "PTHREAD_COND_DESTROY");
 461
 462    function pthread_cond_signal (cond : access pthread_cond_t) return int;
 463    pragma Import (C, pthread_cond_signal, "PTHREAD_COND_SIGNAL");
 464
 465    function pthread_cond_signal_int_np
 466      (cond : access pthread_cond_t) return int;
 467    pragma Import (C, pthread_cond_signal_int_np,
 468                   "PTHREAD_COND_SIGNAL_INT_NP");
 469
 470    function pthread_cond_wait
 471      (cond  : access pthread_cond_t;
 472       mutex : access pthread_mutex_t) return int;
 473    pragma Import (C, pthread_cond_wait, "PTHREAD_COND_WAIT");
 474
 475    --------------------------
 476    -- POSIX.1c  Section 13 --
 477    --------------------------
 478
 479    function pthread_mutexattr_setprotocol
 480      (attr : access pthread_mutexattr_t; protocol : int) return int;
 481    pragma Import (C, pthread_mutexattr_setprotocol,
 482                      "PTHREAD_MUTEXATTR_SETPROTOCOL");
 483
 484    type struct_sched_param is record
 485       sched_priority : int;  --  scheduling priority
 486    end record;
 487    for struct_sched_param'Size use 8*4;
 488    pragma Convention (C, struct_sched_param);
 489
 490    function pthread_setschedparam
 491      (thread : pthread_t;
 492       policy : int;
 493       param  : access struct_sched_param) return int;
 494    pragma Import (C, pthread_setschedparam, "PTHREAD_SETSCHEDPARAM");
 495
 496    function pthread_attr_setscope
 497      (attr            : access pthread_attr_t;
 498       contentionscope : int) return int;
 499    pragma Import (C, pthread_attr_setscope, "PTHREAD_ATTR_SETSCOPE");
 500
 501    function pthread_attr_setinheritsched
 502      (attr            : access pthread_attr_t;
 503       inheritsched : int) return int;
 504    pragma Import (C, pthread_attr_setinheritsched,
 505                      "PTHREAD_ATTR_SETINHERITSCHED");
 506
 507    function pthread_attr_setschedpolicy
 508      (attr : access pthread_attr_t; policy : int) return int;
 509    pragma Import (C, pthread_attr_setschedpolicy,
 510                      "PTHREAD_ATTR_SETSCHEDPOLICY");
 511
 512    function pthread_attr_setschedparam
 513      (attr        : access pthread_attr_t;
 514       sched_param : int) return int;
 515    pragma Import (C, pthread_attr_setschedparam, "PTHREAD_ATTR_SETSCHEDPARAM");
 516
 517    function sched_yield return int;
 518
 519    -----------------------------
 520    --  P1003.1c - Section 16  --
 521    -----------------------------
 522
 523    function pthread_attr_init (attributes : access pthread_attr_t) return int;
 524    pragma Import (C, pthread_attr_init, "PTHREAD_ATTR_INIT");
 525
 526    function pthread_attr_destroy
 527      (attributes : access pthread_attr_t) return int;
 528    pragma Import (C, pthread_attr_destroy, "PTHREAD_ATTR_DESTROY");
 529
 530    function pthread_attr_setdetachstate
 531      (attr        : access pthread_attr_t;
 532       detachstate : int) return int;
 533    pragma Import (C, pthread_attr_setdetachstate,
 534                      "PTHREAD_ATTR_SETDETACHSTATE");
 535
 536    function pthread_attr_setstacksize
 537      (attr      : access pthread_attr_t;
 538       stacksize : size_t) return int;
 539    pragma Import (C, pthread_attr_setstacksize, "PTHREAD_ATTR_SETSTACKSIZE");
 540
 541    function pthread_create
 542      (thread        : access pthread_t;
 543       attributes    : access pthread_attr_t;
 544       start_routine : Thread_Body;
 545       arg           : System.Address) return int;
 546    pragma Import (C, pthread_create, "PTHREAD_CREATE");
 547
 548    procedure pthread_exit (status : System.Address);
 549    pragma Import (C, pthread_exit, "PTHREAD_EXIT");
 550
 551    function pthread_self return pthread_t;
 552
 553    --------------------------
 554    -- POSIX.1c  Section 17 --
 555    --------------------------
 556
 557    function pthread_setspecific
 558      (key   : pthread_key_t;
 559       value : System.Address) return  int;
 560    pragma Import (C, pthread_setspecific, "PTHREAD_SETSPECIFIC");
 561
 562    function pthread_getspecific (key : pthread_key_t) return System.Address;
 563    pragma Import (C, pthread_getspecific, "PTHREAD_GETSPECIFIC");
 564
 565    type destructor_pointer is access procedure (arg : System.Address);
 566
 567    function pthread_key_create
 568      (key        : access pthread_key_t;
 569       destructor : destructor_pointer) return int;
 570    pragma Import (C, pthread_key_create, "PTHREAD_KEY_CREATE");
 571
 572 private
 573
 574    type pid_t is new int;
 575
 576    type pthreadLongAddr_p is mod 2 ** Long_Integer'Size;
 577
 578    type pthreadLongAddr_t is mod 2 ** Long_Integer'Size;
 579    type pthreadLongAddr_t_ptr is mod 2 ** Long_Integer'Size;
 580
 581    type pthreadLongString_t is mod 2 ** Long_Integer'Size;
 582
 583    type pthreadLongUint_t is mod 2 ** Long_Integer'Size;
 584    type pthreadLongUint_array is array (Natural range <>)
 585      of pthreadLongUint_t;
 586
 587    type pthread_t is mod 2 ** Long_Integer'Size;
 588
 589    type pthread_cond_t is record
 590       state    : unsigned;
 591       valid    : unsigned;
 592       name     : pthreadLongString_t;
 593       arg      : unsigned;
 594       sequence : unsigned;
 595       block    : pthreadLongAddr_t_ptr;
 596    end record;
 597    for pthread_cond_t'Size use 8*32;
 598    pragma Convention (C, pthread_cond_t);
 599
 600    type pthread_attr_t is record
 601       valid    : long;
 602       name     : pthreadLongString_t;
 603       arg      : pthreadLongUint_t;
 604       reserved : pthreadLongUint_array (0 .. 18);
 605    end record;
 606    for pthread_attr_t'Size use 8*176;
 607    pragma Convention (C, pthread_attr_t);
 608
 609    type pthread_mutex_t is record
 610       lock     : unsigned;
 611       valid    : unsigned;
 612       name     : pthreadLongString_t;
 613       arg      : unsigned;
 614       sequence : unsigned;
 615       block    : pthreadLongAddr_p;
 616       owner    : unsigned;
 617       depth    : unsigned;
 618    end record;
 619    for pthread_mutex_t'Size use 8*40;
 620    pragma Convention (C, pthread_mutex_t);
 621
 622    type pthread_mutexattr_t is record
 623       valid    : long;
 624       reserved : pthreadLongUint_array (0 .. 14);
 625    end record;
 626    for pthread_mutexattr_t'Size use 8*128;
 627    pragma Convention (C, pthread_mutexattr_t);
 628
 629    type pthread_condattr_t is record
 630       valid    : long;
 631       reserved : pthreadLongUint_array (0 .. 12);
 632    end record;
 633    for pthread_condattr_t'Size use 8*112;
 634    pragma Convention (C, pthread_condattr_t);
 635
 636    type pthread_key_t is new unsigned;
 637
 638    pragma Inline (pthread_self);
 639
 640 end System.OS_Interface;