gcc/ada/s-osinte-hpux-dce.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) 1995-2009, 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 HP-UX version of this package
  36
  37 --  This package encapsulates all direct interfaces to OS services
  38 --  that are 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    pragma Preelaborate;
  49
  50    pragma Linker_Options ("-lcma");
  51
  52    subtype int            is Interfaces.C.int;
  53    subtype short          is Interfaces.C.short;
  54    subtype long           is Interfaces.C.long;
  55    subtype unsigned       is Interfaces.C.unsigned;
  56    subtype unsigned_short is Interfaces.C.unsigned_short;
  57    subtype unsigned_long  is Interfaces.C.unsigned_long;
  58    subtype unsigned_char  is Interfaces.C.unsigned_char;
  59    subtype plain_char     is Interfaces.C.plain_char;
  60    subtype size_t         is Interfaces.C.size_t;
  61
  62    -----------
  63    -- Errno --
  64    -----------
  65
  66    function errno return int;
  67    pragma Import (C, errno, "__get_errno");
  68
  69    EAGAIN    : constant := 11;
  70    EINTR     : constant := 4;
  71    EINVAL    : constant := 22;
  72    ENOMEM    : constant := 12;
  73    ETIME     : constant := 52;
  74    ETIMEDOUT : constant := 238;
  75
  76    FUNC_ERR : constant := -1;
  77
  78    -------------
  79    -- Signals --
  80    -------------
  81
  82    Max_Interrupt : constant := 44;
  83    type Signal is new int range 0 .. Max_Interrupt;
  84    for Signal'Size use int'Size;
  85
  86    SIGHUP     : constant := 1; --  hangup
  87    SIGINT     : constant := 2; --  interrupt (rubout)
  88    SIGQUIT    : constant := 3; --  quit (ASCD FS)
  89    SIGILL     : constant := 4; --  illegal instruction (not reset)
  90    SIGTRAP    : constant := 5; --  trace trap (not reset)
  91    SIGIOT     : constant := 6; --  IOT instruction
  92    SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the  future
  93    SIGEMT     : constant := 7; --  EMT instruction
  94    SIGFPE     : constant := 8; --  floating point exception
  95    SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
  96    SIGBUS     : constant := 10; --  bus error
  97    SIGSEGV    : constant := 11; --  segmentation violation
  98    SIGSYS     : constant := 12; --  bad argument to system call
  99    SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
 100    SIGALRM    : constant := 14; --  alarm clock
 101    SIGTERM    : constant := 15; --  software termination signal from kill
 102    SIGUSR1    : constant := 16; --  user defined signal 1
 103    SIGUSR2    : constant := 17; --  user defined signal 2
 104    SIGCLD     : constant := 18; --  alias for SIGCHLD
 105    SIGCHLD    : constant := 18; --  child status change
 106    SIGPWR     : constant := 19; --  power-fail restart
 107    SIGVTALRM  : constant := 20; --  virtual timer alarm
 108    SIGPROF    : constant := 21; --  profiling timer alarm
 109    SIGIO      : constant := 22; --  asynchronous I/O
 110    SIGPOLL    : constant := 22; --  pollable event occurred
 111    SIGWINCH   : constant := 23; --  window size change
 112    SIGSTOP    : constant := 24; --  stop (cannot be caught or ignored)
 113    SIGTSTP    : constant := 25; --  user stop requested from tty
 114    SIGCONT    : constant := 26; --  stopped process has been continued
 115    SIGTTIN    : constant := 27; --  background tty read attempted
 116    SIGTTOU    : constant := 28; --  background tty write attempted
 117    SIGURG     : constant := 29; --  urgent condition on IO channel
 118    SIGLOST    : constant := 30; --  remote lock lost  (NFS)
 119    SIGDIL     : constant := 32; --  DIL signal
 120    SIGXCPU    : constant := 33; --  CPU time limit exceeded (setrlimit)
 121    SIGXFSZ    : constant := 34; --  file size limit exceeded (setrlimit)
 122
 123    SIGADAABORT : constant := SIGABRT;
 124    --  Note: on other targets, we usually use SIGABRT, but on HP/UX, it
 125    --  appears that SIGABRT can't be used in sigwait(), so we use SIGTERM.
 126
 127    type Signal_Set is array (Natural range <>) of Signal;
 128
 129    Unmasked    : constant Signal_Set :=
 130      (SIGBUS, SIGTRAP, SIGTTIN, SIGTTOU, SIGTSTP);
 131
 132    Reserved    : constant Signal_Set := (SIGKILL, SIGSTOP);
 133
 134    type sigset_t is private;
 135
 136    type isr_address is access procedure (sig : int);
 137    pragma Convention (C, isr_address);
 138
 139    function intr_attach (sig : int; handler : isr_address) return long;
 140
 141    Intr_Attach_Reset : constant Boolean := True;
 142    --  True if intr_attach is reset after an interrupt handler is called
 143
 144    function sigaddset (set : access sigset_t; sig : Signal) return int;
 145    pragma Import (C, sigaddset, "sigaddset");
 146
 147    function sigdelset (set : access sigset_t; sig : Signal) return int;
 148    pragma Import (C, sigdelset, "sigdelset");
 149
 150    function sigfillset (set : access sigset_t) return int;
 151    pragma Import (C, sigfillset, "sigfillset");
 152
 153    function sigismember (set : access sigset_t; sig : Signal) return int;
 154    pragma Import (C, sigismember, "sigismember");
 155
 156    function sigemptyset (set : access sigset_t) return int;
 157    pragma Import (C, sigemptyset, "sigemptyset");
 158
 159    type Signal_Handler is access procedure (signo : Signal);
 160
 161    type struct_sigaction is record
 162       sa_handler : System.Address;
 163       sa_mask    : sigset_t;
 164       sa_flags   : int;
 165    end record;
 166    pragma Convention (C, struct_sigaction);
 167    type struct_sigaction_ptr is access all struct_sigaction;
 168
 169    SA_RESTART  : constant  := 16#40#;
 170    SA_SIGINFO  : constant  := 16#10#;
 171    SA_ONSTACK  : constant  := 16#01#;
 172
 173    SIG_BLOCK   : constant  := 0;
 174    SIG_UNBLOCK : constant  := 1;
 175    SIG_SETMASK : constant  := 2;
 176
 177    SIG_DFL : constant := 0;
 178    SIG_IGN : constant := 1;
 179    SIG_ERR : constant := -1;
 180
 181    function sigaction
 182      (sig  : Signal;
 183       act  : struct_sigaction_ptr;
 184       oact : struct_sigaction_ptr) return int;
 185    pragma Import (C, sigaction, "sigaction");
 186
 187    ----------
 188    -- Time --
 189    ----------
 190
 191    type timespec is private;
 192
 193    function nanosleep (rqtp, rmtp : access timespec) return int;
 194    pragma Import (C, nanosleep);
 195
 196    type clockid_t is private;
 197
 198    CLOCK_REALTIME : constant clockid_t;
 199
 200    function Clock_Gettime
 201      (Clock_Id : clockid_t; Tp : access timespec) return int;
 202    pragma Import (C, Clock_Gettime);
 203
 204    function To_Duration (TS : timespec) return Duration;
 205    pragma Inline (To_Duration);
 206
 207    function To_Timespec (D : Duration) return timespec;
 208    pragma Inline (To_Timespec);
 209
 210    -------------------------
 211    -- Priority Scheduling --
 212    -------------------------
 213
 214    SCHED_FIFO  : constant := 0;
 215    SCHED_RR    : constant := 1;
 216    SCHED_OTHER : constant := 2;
 217
 218    -------------
 219    -- Process --
 220    -------------
 221
 222    type pid_t is private;
 223
 224    function kill (pid : pid_t; sig : Signal) return int;
 225    pragma Import (C, kill, "kill");
 226
 227    function getpid return pid_t;
 228    pragma Import (C, getpid, "getpid");
 229
 230    -------------
 231    -- Threads --
 232    -------------
 233
 234    type Thread_Body is access
 235      function (arg : System.Address) return System.Address;
 236    pragma Convention (C, Thread_Body);
 237
 238    function Thread_Body_Access is new
 239      Ada.Unchecked_Conversion (System.Address, Thread_Body);
 240
 241    type pthread_t           is private;
 242    subtype Thread_Id        is pthread_t;
 243
 244    type pthread_mutex_t     is limited private;
 245    type pthread_cond_t      is limited private;
 246    type pthread_attr_t      is limited private;
 247    type pthread_mutexattr_t is limited private;
 248    type pthread_condattr_t  is limited private;
 249    type pthread_key_t       is private;
 250
 251    -----------
 252    -- Stack --
 253    -----------
 254
 255    function Get_Stack_Base (thread : pthread_t) return Address;
 256    pragma Inline (Get_Stack_Base);
 257    --  This is a dummy procedure to share some GNULLI files
 258
 259    ---------------------------------------
 260    -- Nonstandard Thread Initialization --
 261    ---------------------------------------
 262
 263    procedure pthread_init;
 264    pragma Inline (pthread_init);
 265    --  This is a dummy procedure to share some GNULLI files
 266
 267    -------------------------
 268    -- POSIX.1c  Section 3 --
 269    -------------------------
 270
 271    function sigwait (set : access sigset_t) return int;
 272    pragma Import (C, sigwait, "cma_sigwait");
 273
 274    function sigwait
 275      (set : access sigset_t;
 276       sig : access Signal) return int;
 277    pragma Inline (sigwait);
 278    --  DCE_THREADS has a nonstandard sigwait
 279
 280    function pthread_kill
 281      (thread : pthread_t;
 282       sig    : Signal) return int;
 283    pragma Inline (pthread_kill);
 284    --  DCE_THREADS doesn't have pthread_kill
 285
 286    function pthread_sigmask
 287      (how  : int;
 288       set  : access sigset_t;
 289       oset : access sigset_t) return int;
 290    --  DCE THREADS does not have pthread_sigmask. Instead, it uses sigprocmask
 291    --  to do the signal handling when the thread library is sucked in.
 292    pragma Import (C, pthread_sigmask, "sigprocmask");
 293
 294    --------------------------
 295    -- POSIX.1c  Section 11 --
 296    --------------------------
 297
 298    function pthread_mutexattr_init
 299      (attr : access pthread_mutexattr_t) return int;
 300    --  DCE_THREADS has a nonstandard pthread_mutexattr_init
 301
 302    function pthread_mutexattr_destroy
 303      (attr : access pthread_mutexattr_t) return int;
 304    --  DCE_THREADS has a nonstandard pthread_mutexattr_destroy
 305
 306    function pthread_mutex_init
 307      (mutex : access pthread_mutex_t;
 308       attr  : access pthread_mutexattr_t) return int;
 309    --  DCE_THREADS has a nonstandard pthread_mutex_init
 310
 311    function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
 312    --  DCE_THREADS has a nonstandard pthread_mutex_destroy
 313
 314    function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
 315    pragma Inline (pthread_mutex_lock);
 316    --  DCE_THREADS has nonstandard pthread_mutex_lock
 317
 318    function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
 319    pragma Inline (pthread_mutex_unlock);
 320    --  DCE_THREADS has nonstandard pthread_mutex_lock
 321
 322    function pthread_condattr_init
 323      (attr : access pthread_condattr_t) return int;
 324    --  DCE_THREADS has nonstandard pthread_condattr_init
 325
 326    function pthread_condattr_destroy
 327      (attr : access pthread_condattr_t) return int;
 328    --  DCE_THREADS has nonstandard pthread_condattr_destroy
 329
 330    function pthread_cond_init
 331      (cond : access pthread_cond_t;
 332       attr : access pthread_condattr_t) return int;
 333    --  DCE_THREADS has nonstandard pthread_cond_init
 334
 335    function pthread_cond_destroy (cond : access pthread_cond_t) return int;
 336    --  DCE_THREADS has nonstandard pthread_cond_destroy
 337
 338    function pthread_cond_signal (cond : access pthread_cond_t) return int;
 339    pragma Inline (pthread_cond_signal);
 340    --  DCE_THREADS has nonstandard pthread_cond_signal
 341
 342    function pthread_cond_wait
 343      (cond  : access pthread_cond_t;
 344       mutex : access pthread_mutex_t) return int;
 345    pragma Inline (pthread_cond_wait);
 346    --  DCE_THREADS has a nonstandard pthread_cond_wait
 347
 348    function pthread_cond_timedwait
 349      (cond    : access pthread_cond_t;
 350       mutex   : access pthread_mutex_t;
 351       abstime : access timespec) return int;
 352    pragma Inline (pthread_cond_timedwait);
 353    --  DCE_THREADS has a nonstandard pthread_cond_timedwait
 354
 355    --------------------------
 356    -- POSIX.1c  Section 13 --
 357    --------------------------
 358
 359    type struct_sched_param is record
 360       sched_priority : int;  --  scheduling priority
 361    end record;
 362
 363    function pthread_setschedparam
 364      (thread : pthread_t;
 365       policy : int;
 366       param  : access struct_sched_param) return int;
 367    pragma Inline (pthread_setschedparam);
 368    --  DCE_THREADS has a nonstandard pthread_setschedparam
 369
 370    function sched_yield return int;
 371    pragma Inline (sched_yield);
 372    --  DCE_THREADS has a nonstandard sched_yield
 373
 374    ---------------------------
 375    -- P1003.1c - Section 16 --
 376    ---------------------------
 377
 378    function pthread_attr_init (attributes : access pthread_attr_t) return int;
 379    pragma Inline (pthread_attr_init);
 380    --  DCE_THREADS has a nonstandard pthread_attr_init
 381
 382    function pthread_attr_destroy
 383      (attributes : access pthread_attr_t) return int;
 384    pragma Inline (pthread_attr_destroy);
 385    --  DCE_THREADS has a nonstandard pthread_attr_destroy
 386
 387    function pthread_attr_setstacksize
 388      (attr      : access pthread_attr_t;
 389       stacksize : size_t) return int;
 390    pragma Inline (pthread_attr_setstacksize);
 391    --  DCE_THREADS has a nonstandard pthread_attr_setstacksize
 392
 393    function pthread_create
 394      (thread        : access pthread_t;
 395       attributes    : access pthread_attr_t;
 396       start_routine : Thread_Body;
 397       arg           : System.Address) return int;
 398    pragma Inline (pthread_create);
 399    --  DCE_THREADS has a nonstandard pthread_create
 400
 401    procedure pthread_detach (thread : access pthread_t);
 402    pragma Import (C, pthread_detach);
 403
 404    procedure pthread_exit (status : System.Address);
 405    pragma Import (C, pthread_exit, "pthread_exit");
 406
 407    function pthread_self return pthread_t;
 408    pragma Import (C, pthread_self, "pthread_self");
 409
 410    --------------------------
 411    -- POSIX.1c  Section 17 --
 412    --------------------------
 413
 414    function pthread_setspecific
 415      (key   : pthread_key_t;
 416       value : System.Address) return int;
 417    pragma Inline (pthread_setspecific);
 418    --  DCE_THREADS has a nonstandard pthread_setspecific
 419
 420    function pthread_getspecific (key : pthread_key_t) return System.Address;
 421    pragma Inline (pthread_getspecific);
 422    --  DCE_THREADS has a nonstandard pthread_getspecific
 423
 424    type destructor_pointer is access procedure (arg : System.Address);
 425    pragma Convention (C, destructor_pointer);
 426
 427    function pthread_key_create
 428      (key        : access pthread_key_t;
 429       destructor : destructor_pointer) return int;
 430    pragma Inline (pthread_key_create);
 431    --  DCE_THREADS has a nonstandard pthread_key_create
 432
 433 private
 434
 435    type array_type_1 is array (Integer range 0 .. 7) of unsigned_long;
 436    type sigset_t is record
 437       X_X_sigbits : array_type_1;
 438    end record;
 439    pragma Convention (C, sigset_t);
 440
 441    type pid_t is new int;
 442
 443    type time_t is new long;
 444
 445    type timespec is record
 446       tv_sec  : time_t;
 447       tv_nsec : long;
 448    end record;
 449    pragma Convention (C, timespec);
 450
 451    type clockid_t is new int;
 452    CLOCK_REALTIME : constant clockid_t := 1;
 453
 454    type cma_t_address is new System.Address;
 455
 456    type cma_t_handle is record
 457       field1 : cma_t_address;
 458       field2 : Short_Integer;
 459       field3 : Short_Integer;
 460    end record;
 461    for cma_t_handle'Size use 64;
 462
 463    type pthread_attr_t is new cma_t_handle;
 464    pragma Convention (C_Pass_By_Copy, pthread_attr_t);
 465
 466    type pthread_condattr_t is new cma_t_handle;
 467    pragma Convention (C_Pass_By_Copy, pthread_condattr_t);
 468
 469    type pthread_mutexattr_t is new cma_t_handle;
 470    pragma Convention (C_Pass_By_Copy, pthread_mutexattr_t);
 471
 472    type pthread_t is new cma_t_handle;
 473    pragma Convention (C_Pass_By_Copy, pthread_t);
 474
 475    type pthread_mutex_t is new cma_t_handle;
 476    pragma Convention (C_Pass_By_Copy, pthread_mutex_t);
 477
 478    type pthread_cond_t is new cma_t_handle;
 479    pragma Convention (C_Pass_By_Copy, pthread_cond_t);
 480
 481    type pthread_key_t is new int;
 482
 483 end System.OS_Interface;