1 ------------------------------------------------------------------------------
3 -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
5 -- S Y S T E M . O S _ I N T E R F A C E --
10 -- Copyright (C) 1997-2001, Florida State University --
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, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
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. --
30 -- GNARL was developed by the GNARL team at Florida State University. It is --
31 -- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
32 -- State University (http://www.gnat.com). --
34 ------------------------------------------------------------------------------
36 -- This is the HP-UX version of this package.
38 -- This package encapsulates all direct interfaces to OS services
39 -- that are needed by children of System.
41 -- PLEASE DO NOT add any with-clauses to this package
42 -- or remove the pragma Elaborate_Body.
43 -- It is designed to be a bottom-level (leaf) package.
46 package System
.OS_Interface
is
49 pragma Linker_Options
("-lcma");
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
;
65 function errno
return int
;
66 pragma Import
(C
, errno
, "__get_errno");
68 EAGAIN
: constant := 11;
69 EINTR
: constant := 4;
70 EINVAL
: constant := 22;
71 ENOMEM
: constant := 12;
72 ETIME
: constant := 52;
73 ETIMEDOUT
: constant := 238;
75 FUNC_ERR
: constant := -1;
81 Max_Interrupt
: constant := 44;
82 type Signal
is new int
range 0 .. Max_Interrupt
;
83 for Signal
'Size use int
'Size;
85 SIGHUP
: constant := 1; -- hangup
86 SIGINT
: constant := 2; -- interrupt (rubout)
87 SIGQUIT
: constant := 3; -- quit (ASCD FS)
88 SIGILL
: constant := 4; -- illegal instruction (not reset)
89 SIGTRAP
: constant := 5; -- trace trap (not reset)
90 SIGIOT
: constant := 6; -- IOT instruction
91 SIGABRT
: constant := 6; -- used by abort, replace SIGIOT in the future
92 SIGEMT
: constant := 7; -- EMT instruction
93 SIGFPE
: constant := 8; -- floating point exception
94 SIGKILL
: constant := 9; -- kill (cannot be caught or ignored)
95 SIGBUS
: constant := 10; -- bus error
96 SIGSEGV
: constant := 11; -- segmentation violation
97 SIGSYS
: constant := 12; -- bad argument to system call
98 SIGPIPE
: constant := 13; -- write on a pipe with no one to read it
99 SIGALRM
: constant := 14; -- alarm clock
100 SIGTERM
: constant := 15; -- software termination signal from kill
101 SIGUSR1
: constant := 16; -- user defined signal 1
102 SIGUSR2
: constant := 17; -- user defined signal 2
103 SIGCLD
: constant := 18; -- alias for SIGCHLD
104 SIGCHLD
: constant := 18; -- child status change
105 SIGPWR
: constant := 19; -- power-fail restart
106 SIGVTALRM
: constant := 20; -- virtual timer alarm
107 SIGPROF
: constant := 21; -- profiling timer alarm
108 SIGIO
: constant := 22; -- asynchronous I/O
109 SIGPOLL
: constant := 22; -- pollable event occurred
110 SIGWINCH
: constant := 23; -- window size change
111 SIGSTOP
: constant := 24; -- stop (cannot be caught or ignored)
112 SIGTSTP
: constant := 25; -- user stop requested from tty
113 SIGCONT
: constant := 26; -- stopped process has been continued
114 SIGTTIN
: constant := 27; -- background tty read attempted
115 SIGTTOU
: constant := 28; -- background tty write attempted
116 SIGURG
: constant := 29; -- urgent condition on IO channel
117 SIGLOST
: constant := 30; -- remote lock lost (NFS)
118 SIGDIL
: constant := 32; -- DIL signal
119 SIGXCPU
: constant := 33; -- CPU time limit exceeded (setrlimit)
120 SIGXFSZ
: constant := 34; -- file size limit exceeded (setrlimit)
122 SIGADAABORT
: constant := SIGABRT
;
123 -- Note: on other targets, we usually use SIGABRT, but on HP/UX, it
124 -- appears that SIGABRT can't be used in sigwait(), so we use SIGTERM.
126 type Signal_Set
is array (Natural range <>) of Signal
;
128 Unmasked
: constant Signal_Set
:=
129 (SIGBUS
, SIGTRAP
, SIGTTIN
, SIGTTOU
, SIGTSTP
);
131 Reserved
: constant Signal_Set
:= (SIGKILL
, SIGSTOP
);
133 type sigset_t
is private;
135 type isr_address
is access procedure (sig
: int
);
137 function intr_attach
(sig
: int
; handler
: isr_address
) return long
;
139 Intr_Attach_Reset
: constant Boolean := True;
140 -- True if intr_attach is reset after an interrupt handler is called
142 function sigaddset
(set
: access sigset_t
; sig
: Signal
) return int
;
143 pragma Import
(C
, sigaddset
, "sigaddset");
145 function sigdelset
(set
: access sigset_t
; sig
: Signal
) return int
;
146 pragma Import
(C
, sigdelset
, "sigdelset");
148 function sigfillset
(set
: access sigset_t
) return int
;
149 pragma Import
(C
, sigfillset
, "sigfillset");
151 function sigismember
(set
: access sigset_t
; sig
: Signal
) return int
;
152 pragma Import
(C
, sigismember
, "sigismember");
154 function sigemptyset
(set
: access sigset_t
) return int
;
155 pragma Import
(C
, sigemptyset
, "sigemptyset");
157 type Signal_Handler
is access procedure (signo
: Signal
);
159 type struct_sigaction
is record
160 sa_handler
: System
.Address
;
164 pragma Convention
(C
, struct_sigaction
);
165 type struct_sigaction_ptr
is access all struct_sigaction
;
167 SA_RESTART
: constant := 16#
40#
;
169 SIG_BLOCK
: constant := 0;
170 SIG_UNBLOCK
: constant := 1;
171 SIG_SETMASK
: constant := 2;
173 SIG_DFL
: constant := 0;
174 SIG_IGN
: constant := 1;
175 SIG_ERR
: constant := -1;
179 act
: struct_sigaction_ptr
;
180 oact
: struct_sigaction_ptr
) return int
;
181 pragma Import
(C
, sigaction
, "sigaction");
187 type timespec
is private;
189 function nanosleep
(rqtp
, rmtp
: access timespec
) return int
;
190 pragma Import
(C
, nanosleep
);
192 type clockid_t
is private;
194 CLOCK_REALTIME
: constant clockid_t
;
196 function Clock_Gettime
197 (Clock_Id
: clockid_t
; Tp
: access timespec
) return int
;
198 pragma Import
(C
, Clock_Gettime
);
200 function To_Duration
(TS
: timespec
) return Duration;
201 pragma Inline
(To_Duration
);
203 function To_Timespec
(D
: Duration) return timespec
;
204 pragma Inline
(To_Timespec
);
206 type struct_timeval
is private;
208 function To_Duration
(TV
: struct_timeval
) return Duration;
209 pragma Inline
(To_Duration
);
211 function To_Timeval
(D
: Duration) return struct_timeval
;
212 pragma Inline
(To_Timeval
);
214 -------------------------
215 -- Priority Scheduling --
216 -------------------------
218 SCHED_FIFO
: constant := 0;
219 SCHED_RR
: constant := 1;
220 SCHED_OTHER
: constant := 2;
226 type pid_t
is private;
228 function kill
(pid
: pid_t
; sig
: Signal
) return int
;
229 pragma Import
(C
, kill
, "kill");
231 function getpid
return pid_t
;
232 pragma Import
(C
, getpid
, "getpid");
238 type Thread_Body
is access
239 function (arg
: System
.Address
) return System
.Address
;
240 type pthread_t
is private;
241 subtype Thread_Id
is pthread_t
;
243 type pthread_mutex_t
is limited private;
244 type pthread_cond_t
is limited private;
245 type pthread_attr_t
is limited private;
246 type pthread_mutexattr_t
is limited private;
247 type pthread_condattr_t
is limited private;
248 type pthread_key_t
is private;
254 function Get_Stack_Base
(thread
: pthread_t
) return Address
;
255 pragma Inline
(Get_Stack_Base
);
256 -- This is a dummy procedure to share some GNULLI files
258 ---------------------------------------
259 -- Nonstandard Thread Initialization --
260 ---------------------------------------
262 procedure pthread_init
;
263 pragma Inline
(pthread_init
);
264 -- This is a dummy procedure to share some GNULLI files
266 -------------------------
267 -- POSIX.1c Section 3 --
268 -------------------------
270 function sigwait
(set
: access sigset_t
) return int
;
271 pragma Import
(C
, sigwait
, "cma_sigwait");
274 (set
: access sigset_t
;
275 sig
: access Signal
) return int
;
276 pragma Inline
(sigwait
);
277 -- DCE_THREADS has a nonstandard sigwait
279 function pthread_kill
281 sig
: Signal
) return int
;
282 pragma Inline
(pthread_kill
);
283 -- DCE_THREADS doesn't have pthread_kill
285 type sigset_t_ptr
is access all sigset_t
;
287 function pthread_sigmask
290 oset
: sigset_t_ptr
) return int
;
291 -- DCE THREADS does not have pthread_sigmask. Instead, it uses
292 -- sigprocmask to do the signal handling when the thread library is
294 pragma Import
(C
, pthread_sigmask
, "sigprocmask");
296 --------------------------
297 -- POSIX.1c Section 11 --
298 --------------------------
300 function pthread_mutexattr_init
301 (attr
: access pthread_mutexattr_t
) return int
;
302 -- DCE_THREADS has a nonstandard pthread_mutexattr_init.
304 function pthread_mutexattr_destroy
305 (attr
: access pthread_mutexattr_t
) return int
;
306 -- DCE_THREADS has a nonstandard pthread_mutexattr_destroy
308 function pthread_mutex_init
309 (mutex
: access pthread_mutex_t
;
310 attr
: access pthread_mutexattr_t
) return int
;
311 -- DCE_THREADS has a nonstandard pthread_mutex_init
313 function pthread_mutex_destroy
(mutex
: access pthread_mutex_t
) return int
;
314 -- DCE_THREADS has a nonstandard pthread_mutex_destroy
316 function pthread_mutex_lock
(mutex
: access pthread_mutex_t
) return int
;
317 pragma Inline
(pthread_mutex_lock
);
318 -- DCE_THREADS has nonstandard pthread_mutex_lock
320 function pthread_mutex_unlock
(mutex
: access pthread_mutex_t
) return int
;
321 pragma Inline
(pthread_mutex_unlock
);
322 -- DCE_THREADS has nonstandard pthread_mutex_lock
324 function pthread_condattr_init
325 (attr
: access pthread_condattr_t
) return int
;
326 -- DCE_THREADS has nonstandard pthread_condattr_init
328 function pthread_condattr_destroy
329 (attr
: access pthread_condattr_t
) return int
;
330 -- DCE_THREADS has nonstandard pthread_condattr_destroy
332 function pthread_cond_init
333 (cond
: access pthread_cond_t
;
334 attr
: access pthread_condattr_t
) return int
;
335 -- DCE_THREADS has nonstandard pthread_cond_init
337 function pthread_cond_destroy
(cond
: access pthread_cond_t
) return int
;
338 -- DCE_THREADS has nonstandard pthread_cond_destroy
340 function pthread_cond_signal
(cond
: access pthread_cond_t
) return int
;
341 pragma Inline
(pthread_cond_signal
);
342 -- DCE_THREADS has nonstandard pthread_cond_signal
344 function pthread_cond_wait
345 (cond
: access pthread_cond_t
;
346 mutex
: access pthread_mutex_t
) return int
;
347 pragma Inline
(pthread_cond_wait
);
348 -- DCE_THREADS has a nonstandard pthread_cond_wait
350 function pthread_cond_timedwait
351 (cond
: access pthread_cond_t
;
352 mutex
: access pthread_mutex_t
;
353 abstime
: access timespec
) return int
;
354 pragma Inline
(pthread_cond_timedwait
);
355 -- DCE_THREADS has a nonstandard pthread_cond_timedwait
357 --------------------------
358 -- POSIX.1c Section 13 --
359 --------------------------
361 type struct_sched_param
is record
362 sched_priority
: int
; -- scheduling priority
365 function pthread_setschedparam
368 param
: access struct_sched_param
) return int
;
369 pragma Inline
(pthread_setschedparam
);
370 -- DCE_THREADS has a nonstandard pthread_setschedparam
372 function sched_yield
return int
;
373 pragma Inline
(sched_yield
);
374 -- DCE_THREADS has a nonstandard sched_yield
376 ---------------------------
377 -- P1003.1c - Section 16 --
378 ---------------------------
380 function pthread_attr_init
(attributes
: access pthread_attr_t
) return int
;
381 pragma Inline
(pthread_attr_init
);
382 -- DCE_THREADS has a nonstandard pthread_attr_init
384 function pthread_attr_destroy
385 (attributes
: access pthread_attr_t
) return int
;
386 pragma Inline
(pthread_attr_destroy
);
387 -- DCE_THREADS has a nonstandard pthread_attr_destroy
389 function pthread_attr_setstacksize
390 (attr
: access pthread_attr_t
;
391 stacksize
: size_t
) return int
;
392 pragma Inline
(pthread_attr_setstacksize
);
393 -- DCE_THREADS has a nonstandard pthread_attr_setstacksize
395 function pthread_create
396 (thread
: access pthread_t
;
397 attributes
: access pthread_attr_t
;
398 start_routine
: Thread_Body
;
399 arg
: System
.Address
) return int
;
400 pragma Inline
(pthread_create
);
401 -- DCE_THREADS has a nonstandard pthread_create
403 procedure pthread_detach
(thread
: access pthread_t
);
404 pragma Import
(C
, pthread_detach
);
406 procedure pthread_exit
(status
: System
.Address
);
407 pragma Import
(C
, pthread_exit
, "pthread_exit");
409 function pthread_self
return pthread_t
;
410 pragma Import
(C
, pthread_self
, "pthread_self");
412 --------------------------
413 -- POSIX.1c Section 17 --
414 --------------------------
416 function pthread_setspecific
417 (key
: pthread_key_t
;
418 value
: System
.Address
) return int
;
419 pragma Inline
(pthread_setspecific
);
420 -- DCE_THREADS has a nonstandard pthread_setspecific
422 function pthread_getspecific
(key
: pthread_key_t
) return System
.Address
;
423 pragma Inline
(pthread_getspecific
);
424 -- DCE_THREADS has a nonstandard pthread_getspecific
426 type destructor_pointer
is access procedure (arg
: System
.Address
);
428 function pthread_key_create
429 (key
: access pthread_key_t
;
430 destructor
: destructor_pointer
) return int
;
431 pragma Inline
(pthread_key_create
);
432 -- DCE_THREADS has a nonstandard pthread_key_create
436 type array_type_1
is array (Integer range 0 .. 7) of unsigned_long
;
437 type sigset_t
is record
438 X_X_sigbits
: array_type_1
;
440 pragma Convention
(C
, sigset_t
);
442 type pid_t
is new int
;
444 type time_t
is new long
;
446 type timespec
is record
450 pragma Convention
(C
, timespec
);
452 type clockid_t
is new int
;
453 CLOCK_REALTIME
: constant clockid_t
:= 1;
455 type struct_timeval
is record
459 pragma Convention
(C
, struct_timeval
);
461 type cma_t_address
is new System
.Address
;
463 type cma_t_handle
is record
464 field1
: cma_t_address
;
465 field2
: Short_Integer;
466 field3
: Short_Integer;
468 for cma_t_handle
'Size use 64;
470 type pthread_attr_t
is new cma_t_handle
;
471 pragma Convention
(C_Pass_By_Copy
, pthread_attr_t
);
473 type pthread_condattr_t
is new cma_t_handle
;
474 pragma Convention
(C_Pass_By_Copy
, pthread_condattr_t
);
476 type pthread_mutexattr_t
is new cma_t_handle
;
477 pragma Convention
(C_Pass_By_Copy
, pthread_mutexattr_t
);
479 type pthread_t
is new cma_t_handle
;
480 pragma Convention
(C_Pass_By_Copy
, pthread_t
);
482 type pthread_mutex_t
is new cma_t_handle
;
483 pragma Convention
(C_Pass_By_Copy
, pthread_mutex_t
);
485 type pthread_cond_t
is new cma_t_handle
;
486 pragma Convention
(C_Pass_By_Copy
, pthread_cond_t
);
488 type pthread_key_t
is new int
;
490 end System
.OS_Interface
;